A Week at the Lake with My Sister (Old)
The original version of "A Week at the Lake with My Sister".
Read the revised version first!

In 2018, I published "A Week at the Lake with My Sister". It was the longest story I had written at over 53K words, so I decided to split it up into five chapters. I made some poor plotting choices, particularly in chapter 4. As a consequence, I received a lot of negative comments on the last two chapters. But the story was published, I learned my lessons from it, and I moved on.

I read every comment I receive, and, as the years went by, I came to dread getting new comments on chapter 4 as they were almost always very critical. I thought about taking down the whole series, but I didn't want to take down that much work, and I did get some enjoyable comments on it. A reader convinced me to rewrite the story to fix the poor plotting choices. I decided to not change the first three chapters, so the new version would be an alternative reality to the original chapters 4 and 5. One decision would be different, and that would lead to a very different story. I decided to republish the whole thing as a stand-alone story. I did that in 2022.

I took all of my stories down at the beginning of 2023, and I republished the revised version on 8/28/23. I got a number of comments saying that the reader liked the original version better and asking me to republish it. So here is the original version combined into one story. The first three chapters are the same as the revised version.

* * * * Chapter 1 * * * *

"You want me to do what?" I asked my sister Kaitlyn in surprise.

"Please, Brandon. Please date Joanna for the summer." Joanna was her long-time best friend. "I think you'll have a great time together, and she really needs to date a better class of guy. It would mean so much to me."

I knew I should have suspected something when Kaitlyn had baked my favorite cake this afternoon. She had waited until I had eaten a big slice before asking. "Joann is nice, and I like her, but we've never clicked. And she can find a boyfriend quite easily on her own."

Kaitlyn sighed. "Yeah, she can, but she always finds the wrong kind of guy." I knew what was coming. "The good-looking, super-confident guys with a lot of money that turn out to be jerks. The last one really did a number on her."

"What did he do?" I did like Joanna as a friend, and I didn't like hearing a guy had hurt her.

"He introduced her to coke." Kaitlyn's anger rose as she spoke. "Then she caught him cheating on her; he apologized and said it was a terrible mistake; she took him back; and when she caught him cheating on her again, he totally blamed her for his cheating."

My jaw dropped. "How could it be her fault?"

"She had gotten flabby; she wasn't giving him enough sex; she was just using him for the coke, and he had wised up." Kaitlyn had counted off on her fingers as she had gone through the list. "All bullshit, but it's destroyed her self-confidence."

"Asshole." I hated guys who treated girls like shit.

"Exactly. He's the worst guy she's dated, but she keeps dating losers like him. That's why I want you to date her for the summer."

I stalled by asking, "Do you know the difference between a porcupine and a BMW?"

Kaitlyn gave me a little grin. "No."

"With the porcupine, the prick is on the outside."

Kaitlyn laughed. "Too true. At least it's been too true for Joanna." Kaitlyn frowned slightly. "Look, Brandon, I know you two have never clicked, but just for the summer, could you do it? It's not like you've got a lot of other options, do you?"

I had broken up with my last girlfriend a little over a month ago. In the three years since I had graduated, I had lost touch with most of my friends from high school. I didn't know a single girl I could ask out now that I was home for the summer. I liked Joanna, and I'd love to have a girlfriend for the summer, but...

"Even though I have a lot of fun with Joanna when she's with you, I've never been able to keep a conversation going with her when it's just the two of us."

Kaitlyn said, "It's because you intimidate her." I snorted. "Seriously. She's always had a big crush on you. She would talk with me all the time about you. I think she's wanted you to like her so much that she's never been able to relax around you. I think you'll have a lot of fun with her once she gets used to being with you."

I had always suspected Joanna had a crush on me, and what Kaitlyn said sounded plausible. Why not give her a chance?

But before I could say anything, Kaitlyn said, "How about this, Brandon; the three of us will go out. If you're having a good time, then act like it's a date. I won't mind being a third wheel."

That was an interesting idea. "What about Paul?" Paul was Kaitlyn's boyfriend. As Kaitlyn and I attended the same university, I had met him briefly a couple of times. He lived three hours away and would be visiting on weekends.

"I don't want to double-date. When Paul's here, I want to be totally focused on him. But during the week, you, Joanna, and I could go out."

"I'd be up for the three of us going out," I added to keep expectations reasonable, "No promises, but I'll give Joanna a chance."

* * * *

Tuesday, Joanna was waiting outside of her apartment building. I hadn't seen her in a long time as she could only afford to go to the local community college, but she looked as good as I remembered her; black hair that came down below her shoulders, dark brown eyes, dark eyebrows, dark lashes that boldly stood out against her light olive complexion, and lips on the thin side that formed a pretty smile when she saw us pull up. She was wearing a white tank top that showed off her nice upper body. Her tits were on the small side but fit her slim figure. Sexy legs extended below her light blue shorts. Joanna had played volleyball in high school and had had a firm body. She wasn't in that same shape, but she still looked damn good to me. How a guy could call her flabby was beyond me.

Kaitlyn got out of the passenger seat and got in the back seat so Joanna could sit next to me. When Joanna got in the car, she said, "Hey Brandon. Long time, no see."

"Ditto. You look great. Are college and work treating you well?"

"I love my job. School's okay. Classes are too easy, and there are some spooky kids in my classes."

As I headed toward the mall, Joanna told me about her college experience. On the way, my phone rang. When I checked it, I saw that the Caller ID was "United States," so I sent it to voice mail.

"Who was that?" Joanna asked. "The girl you're going to go out with after you drop me off?" She tried to make it sound like she was teasing, but it was too barbed and insecure.

Not a great start to a date. "This girl who works at a furniture store. She keeps calling me even though I've told her time and time again that all I was looking for was one nightstand."

Kaitlyn snorted and then cracked up. Joanna joined in laughing, and the tension diffused.

We went to the mall, had dinner, and shopped for a while. As I expected, Joanna and I didn't talk much directly to each other. Instead, she and Kaitlyn would talk, and I'd jump in occasionally; or Kaitlyn and I would talk, and Joanna would jump in occasionally. Still, it was a lot of fun.

We went to a movie, where Kaitlyn had me sit in the middle. About halfway through, Kaitlyn jabbed me in the ribs with her elbow, and I took that as a hint to hold Joanna's hand. When I took it, Joanna gave my hand a squeeze. After the movie was over, we walked hand-in-hand as we exited the theater.

On the way to my car, Kaitlyn asked, "How about I drive, and you two sit in back?"

I looked at Joanna, who nodded. "Okay." I reviewed how the date went, as we continued walking to my car. I had had fun, but only because Kaitlyn was along. I decided tentatively that I'd like to go out with Joanna again, but only if Kaitlyn went with us.

Kaitlyn said, "How about we go back to our house?"

Joanna said, "Your parents are probably getting ready for bed."

Kaitlyn replied, "They're always happy to see you."

I suspected that if Joanna went to our house, Kaitlyn would push for her to spend the night with me. It was way too early for that. "Let's take Joanna home."

Kaitlyn gave me a look that could have melted paint as I gave her my keys. I held the door open for Joanna to sit in the backseat, and then went around the car to join her. We held hands on the drive back to her apartment while we talked to Kaitlyn about the movie. When we got to her apartment building, I got out, opened the door for her, and gave her a goodnight kiss. Kaitlyn moved over to the passenger seat, and I got in behind the wheel.

Kaitlyn said, "You could have done more."

I raised my hand in a what-were-you-expecting? gesture. "Maybe I could have, but I'm fine with how the evening went. I had a good time, and we had no awkward moments."

"It's that...she's agreed to be your girlfriend for the summer. You didn't give her a chance to be."

"We've gone on one date. It's too early to talk about her being my girlfriend."

"I asked you to date Joanna for the summer. The whole summer. That's what you agreed to."

"What? No." I shook my head. "I didn't agree to her being my girlfriend for the whole summer. I only agreed to go out with her. One date at a time, and no promises as to how long I'll date her."

"Well...I want her to go to the lake with us. And that's in five weeks."

Dad's family owned a cabin on a lake five hours away from us. It was a small, three-bedroom place that in years past we visited several times each summer. This year, because of my job, we'd only spend one full week there.

"Is Paul going to the lake with us?" I asked.

"Yes. Mom and Dad have already approved it. And I can tell you from personal experience it's no fun being single at the lake when your sibling has their significant other."

Yeah, it had sucked for Kaitlyn the last two years. She had had to go with my parents in the evening when they had taken a walk to give me and my girlfriend privacy.

"Maybe Joanna won't want to go to the lake."

"She's already asked for the time off." Joanna had gotten a job at an insurance office after high school and had gotten Kaitlyn a job there for the summer. "I've convinced her that she needs to get used to having a good guy as a boyfriend, so she's ready to be your girlfriend. That includes sex."

I laughed. "Because I'm a good guy, I'm not going to push her to have sex before she's ready."

Kaitlyn flashed me a you're-an-idiot look. "She's ready. If you had taken her to our house, you could have made love tonight. She loves sex, and she's hot for you."

I shook my head in amazement. "Well, I'm not ready to have sex yet. I feel like I'm still getting to know her."

Kaitlyn snorted. "She's been my best friend for six years. She's been constantly at our house that whole time. You've spent lots of time with her."

"I've known her as your friend but not as someone I was interested in. I need to warm up to her."

I didn't know what Kaitlyn wanted from me. I had told her upfront that I wasn't wild about Joanna. Just because she had talked Joanna into that it'd be a good experience to have me as a boyfriend didn't mean it'd work well for us to jump into bed together. I wasn't looking for sex; I was looking for a relationship in which sex happily fit. It takes time to build that kind of relationship. How could Kaitlyn not understand that?

* * * *

The next day was the first day of my summer job; one Dad had gotten me at a golf course where he regularly played. I was going to be working eight-to-five, Wednesday-to-Sunday.

After work, I went home and cleaned up for another night out with Kaitlyn and Joanna. When I got in the car with Kaitlyn, she asked, "How was work?"

"Okay. I spent the morning driving golf carts from the barn to where golfers drive off in them. Once things slowed down there, I went with a groundskeeper to trim bushes on the course and to haul trimmings. For the last two hours, I drove golf carts from where the golfers dropped them off to the back side of the barn, washed them off, and put them away. My boss told me to run whenever I went to or from the barn, and I did."

"Sounds like a lot of running."

"A lot of hard work. I'm tired. You and Joanna are going to crush me tonight."

Kaitlyn laughed.

We picked up Joanna and went to play tennis. Kaitlyn and I had been on the tennis team in high school and Joanna had learned to play from hanging around with Kaitlyn. Joanna and Kaitlyn were on one side and I was on the other. Facing them both, I couldn't help noticing the contrast between the two. Both were pretty, but in very different ways. Kaitlyn had lightly-freckled pale skin, brilliant blue eyes, and honey-brown long hair that was braided into a ponytail. She was much curvier than Joanna, with broader shoulders, an ample bust and wider hips. I enjoyed watching both of them bounce around the court. I was the better player, but I was tired and had to cover more court so they won 6-1, 6-2, 6-1.

Afterward, the three of us sat down at a picnic table close to the courts. I held Joanna's hand while we talked. After five minutes, Kaitlyn said, "I'm going to go for a walk."

Once Kaitlyn was out of earshot, I asked Joanna, "So what do you think of us dating?"

"If Kaitlyn hadn't pressured you into doing it, I'd be loving it." She shrugged her shoulders, implying she wasn't loving it. "But she's right that I need to date better guys and all the girls you dated while I was in high school said you were a really good boyfriend."

"They told you that?" I asked incredulously.

"Yeah. Well, all the girls you dated were good friends of mine!"

I thought back to the girls I had dated. They had all been friends of Kaitlyn, which made them friends of Joanna as well. "Well, I can't help it that my sister kept bringing home girls I got along well with."

"But you never got along well with me." It was a statement of fact.

I needed to turn this around. "I wasn't the type of guy you were looking for and I didn't see any point in giving you unwanted interest." I had said that matter-of-factly, but then I said more positively, "We're getting along fine now."

I leaned forward and kissed Joanna. She smiled and her eyes twinkled. I waited for her to initiate the next kiss. She did, and we kissed gently for the next few minutes.

I asked, "How's your mom doing?"

Joanna sighed. "She's dating another loser and I'm afraid she's getting close to inviting him to move in."

"Why is he a loser?"

"He's like so many of the guys my mom has been involved with -- can't commit to a relationship. He'll live with Mom for a couple of years and then drift on out. Mom's saying 'This time it'll be different', but it never is. At least I'm old enough that he doesn't have to pretend he's going to be my dad. I hated that." It must have been tough having father-figures appear and disappear. "But if he moves in, I'm moving out."

Joanna's body language was weird. When Kaitlyn had been with us, she had been relaxed and had talked lightly and carefree. Now, she was tense and uneasy. It was like she felt that she had to say something about her mom because I had asked, but she wasn't comfortable talking to me about her.

I asked, "Where would you move to?"

"I don't know. Kaitlyn and I have talked about subletting a place for the rest of the summer. I told her that I didn't want her spending money on rent just to help me, but she said Paul's not comfortable with staying at your parents', so he'd probably help with the rent if we got a place."

"Why isn't he comfortable staying at my parents'?"

"Because it's weird. What parents let their kids have people spend the night with them?"

I was a little surprised by her question. "Don't you know the story behind that?"

"Vaguely. It had something to do with Chelsea." Chelsea had been one of my high school girlfriends.

"Well, it really starts with my two cousins, Piper and Reagan."

Joanna searched her memory. "I don't think I've met them. Kaitlyn hasn't mentioned them much."

"They're much older than her. Piper is five years older than me, and Reagan is two years older. We'd do things with them at the lake house during the summer, but we were never close because of the age difference. They're my dad's brother's daughters and my dad's brother's family used the lake house like we did until Piper's summer before her senior year in high school."

"What happened then?"

"Piper had a serious boyfriend. My aunt and uncle were planning on spending two weeks at the lake house, and she didn't want to be apart from him that long. Her family forced her to go, and she whined and moped the whole two weeks. When she graduated from high school, she moved in with her boyfriend and hasn't been to the lake house since."

"Ouch!" said Joanna sympathetically.

"It gets worse. The summer before Reagan's senior year, she had a serious boyfriend and didn't want to go to the lake house. My aunt and uncle said she could bring her boyfriend to the lake house, and she seemed fine with that. But then my aunt and uncle wouldn't give her and her boyfriend any privacy. Reagan wanted to sleep with her boyfriend, and her parents said no. Reagan and her boyfriend fought with my aunt and uncle for the whole two weeks. Once Reagan graduated from high school, she moved in with her boyfriend and hasn't been to the lake house since."

"Double ouch! Do your aunt and uncle still go to the lake house?"

"Well, after a rough couple of years, everyone seems to have patched things up. They're going to the lake house for a long Fourth of July, and my cousins will be there with their boyfriends."

"That's good."

I nodded my head. "It is. My parents have been really upset about the situation. Kids pull away from their parents, but I don't think any parent wants their kid to pull away that hard and that fast. My parents sure don't." My parents loved spending time with Kaitlyn and me. "So that's the background. The summer before my senior year of high school, I'm dating Chelsea and I don't want to go to the lake house for two weeks."

"That must have frightened your parents. They'd seen that horror movie twice already."

"They knew it was coming, so they were prepared."

Joanna crinkled her nose. "But you went, didn't you? I went with Kaitlyn that summer, and Chelsea didn't come."

"Yeah. I went because my parents offered me a deal: if I went to the lake house that summer and continued doing family trips; then when I turned eighteen and became an adult, they'd respect my right to have privacy with my adult girlfriend. That meant I could have girls spend the night and take them to the lake house with me."

"So you forced them into letting you have girls sleep over?"

I made an unhappy face. Joanna's face fell, like she was kicking herself for saying something that made me unhappy. "I wouldn't say force. If they had said I had to go to the lake house, I would have moped a little, but I wouldn't have taken it as badly as Piper did. But my parents didn't want to risk it. A lot of other parents give my parents grief for the deal, but my parents push back with that they think they are more involved with my life because of it." I smiled. "I like it. I don't have to pretend I'm not having sex with a girl, and I don't have to struggle to find someplace where we can be alone. I wouldn't bring a one-night-stand home, but I'm not a one-night-stand kind of guy. I don't know if I would have come home for the summer without it. It's worked so well for me that my parents gave Kaitlyn the same deal." Joanna nodded in understanding. "My parents seem to genuinely enjoy it when Kaitlyn or I have someone spend the night as they want to get to know well the people we're dating. So there's no reason for Paul to feel uncomfortable about staying at our house."
"I'd find it uncomfortable. And he's got a lot of money. His dad owns a good-sized business and puts a LOT of money into Paul's checking account each month. Paul is working for his dad for the summer, so he has even more money. I think that's his main appeal to Kaitlyn -- he spends a lot of money on her."

"He does?"

Joanna wouldn't look at me when she talked. When she was done talking, she'd sneak a peek at me. I wished she would be like she was when Kaitlyn was with us.

"Yeah. Don't get me wrong -- she's not dating him just because he spends a lot of money on her. He sounds very sweet. She loves him; not I-want-to-marry-him love but I-really-want-to-see-where-this-goes love." Joanna paused and sneaked a peek at me to gauge my reaction. "If Paul won't help with the rent, Kaitlyn said she'd tried to convince your parents to let me live with them. She's such a great friend. Has Kaitlyn told you we're going to get an apartment together in the fall?"

This was big news. "No."

"I got a big raise at work for my one-year anniversary, so I can afford to change schools now instead of waiting another year. Everything had seemed set until Mom said something about her loser moving in."

I squeezed Joanna's hand. "I wish you luck." We weren't far enough along in our relationship for me to offer more than that.

She leaned forward and we had another round of kissing. Once we started kissing, she relaxed and went back to having positive body language. She was a good kisser with soft lips that she used in a variety of ways. Because we were in a public place, I didn't feel comfortable Frenching and apparently neither did Joanna. We stopped after a few minutes and went back to holding hands.

We discussed our plans for the weekend. Our kissing had relaxed her some, but she was still uncomfortable. We hit a lull in our conversation, which lasted until Kaitlyn came around the corner of the tennis courts. The look on her face showed disappointment, like she was expecting to find us fucking on the grass.

When we got in the car, Kaitlyn asked, "Do you want to go back to our house?"

Again, I had the feeling that Kaitlyn was trying to get Joanna to spend the night with me. "No. Let's drop Joanna off and go home. I'm exhausted and just want to go to sleep."

Joanna and I snuggled in the back of the car while Kaitlyn drove us to her apartment. Joanna was much more aggressive than at the tennis courts and had me hard most of the drive. I decided she wasn't comfortable chatting with me, but she was very comfortable making out with me. After I kissed Joanna goodnight, I took over driving. Kaitlyn's silence told me she had expected me to do more with Joanna.

I said, "I had fun tonight. Thanks for coming along. Having fun with you tonight made me regret that I didn't visit you very often at college."

Kaitlyn softened immediately. "That's okay. You were busy, and I wanted to make my own life."

"You're a fun person to be with. Joanna is a lot more fun when she's with you. You're probably wanting me to go out with just her from now on, but I think all of us will have more fun if we keep going out together." I paused to emphasize my next point. "And fun is what I'm looking for with Joanna right now."

I felt like going slow was the right thing. From what I understood, Joanna was drawn to guys who wanted to get into her pants right away, and I was showing her that we should establish a relationship that makes her want to have sex before we actually have sex.

Kaitlyn was quiet for a while and then said, "You know, you used to be such a big presence in my life. You dated my friends, you flirted with them when you weren't dating, you gave me rides everywhere, and you helped me with my homework. And then you were gone, off to college. Hanging out with you and Joanna makes me realize how big of a void your absence created in my life."

"But you had your boyfriends. And now you have Paul."

Kaitlyn brightened. "I do have Paul."

* * * *

Thursday night, the three of us did the grocery shopping for the week for the two families. I started "accidentally" bumping and rubbing against Joanna, and she quickly got into doing the same. She and I giggled a lot, and Kaitlyn would roll her eyes whenever we got a little carried away.

On the way to Joanna's apartment, I asked Kaitlyn, "Looking forward to seeing Paul?" He'd be arriving tomorrow for the weekend.

"You bet. I've missed him a lot. He's very sweet and he constantly does nice things for me. This week alone, he's sent me two 'I love you' cards and a small box of chocolates. He makes me feel so loved."

"Sounds like a great guy. What's his major?"

"Electrical Engineering. We had calculus together spring semester. He sat next to me on the first day of class and introduced himself, and we hit it off. Two weeks later, we went on our first date, and we've been together ever since."

* * * *

Friday, Joanna came home from work with Kaitlyn and stayed to meet Paul. I could tell Paul's large physical presence surprised Joanna; he was probably 6'3" and very wide. I'm 6'1" and looked small next to him. His shaved head added to his intimidating physical presence.

We spent the evening talking, getting to know Paul. I had expected him to brag about how he liked to kill alligators with his bare hands, but it turned out he was a big nerd. He loved talking about sci-fi movies and the latest electronic gadgets, and proudly showed off his brand-new top-of-the-line iPhone like a proud father shows off his baby.

At ten, Joanna announced it was time for me to take her home.

Kaitlyn said, "You can spend the night, Joanna."

She shook her head. "I didn't bring any of my stuff."

We all knew that Kaitlyn had everything Joanna would need, but I was fine with her not staying. I was getting pretty sweet on her and was ready to have sex, but I wanted her to pick the time and place.

As I drove Joanna home, I said, "I had fun tonight. I wish you had spent the night, but there's no rush."

Joanna squeezed my hand. "Thanks. I had fun too. Listen -- tomorrow night, Mom and her loser might go out for the evening. They won't decide until the last minute, so stay flexible, okay?"

I smiled at what she was suggesting. "Okay."

"And don't tell Kaitlyn I told you to stay flexible."

* * * *

Saturday was nuts at work. Saturday is the busiest day of the week for a golf course and since it was a perfect day, the golfers never stopped coming. I spent almost the whole day working the golf carts.

When I got home, Paul and Kaitlyn were about to leave for the evening.

Paul asked, "Are you going out with Joanna later?"

"No. She's busy with her mom. After dinner, I'll go over to a friend's house to play Fortnite. Do you play Fortnite?"

"A little. I mainly play Total Galactic War."

"That's a mobile game, right?"

Paul's eyes lit up. "Have you played it?"

"No."

"It's a great game." He described it enthusiastically while Kaitlyn crossed her arms and rolled her eyes. I got the feeling she had heard this spiel many times. I enjoyed playing computer games and I was never as enthusiastic about a game as Paul was about his.

When Paul paused to think of how to describe a game feature, Kaitlyn grabbed his arm and pulled him toward the door. "You boys can talk more about the game tomorrow." And then they were gone.

* * * *

While I was having dinner, I got a text from Joanna. Call me when you leave the house.

When I got in my car, I called Joanna.

"Hey, Brandon."

"Hey, Joanna."

"My mom has gone out with her loser. I've got the apartment to myself for a few hours. Come on over."

"Will do."

I called my friend to say something had come up and I couldn't make it over for Fortnite. I drove over to Joanna's, and when I entered her apartment, she said, "Let's go to my bedroom."

I shook my head. "No, not yet. Let's start out here."

I took Joanna's hand and led her over to the dining room where I had her sit down in a chair. I said, "Do you know you have a beautiful neck?" I bent forward and kissed it lightly. She sucked in her breath. I worked my way down her neck, the kisses occasionally turning into soft nibbles as I stroked her arms. I heard her breath quicken as I did. Joanna was wearing a light blue tank top that exposed most of her shoulders and I kissed my way across her right shoulder.

I went slow -- as slow as I could stand -- and drove Joanna's lust steadily up to a fever pitch. When I was done, we moved to her bedroom where I slowly undressed her, covering her body with kisses, licks and nibbles. When my tongue touched her pussy, she came for the first time. I made her cum again before I slowly fucked her. When I filled her pussy a second time, she was glass-eyed.

"That was the best sex I've ever had," said Joanna as I lay on my side next to her, holding her hand.

I kissed her and said, "Perfect. I wanted to make our first time special." I brought her hand to my lips and kissed it. "Ready to cuddle?"

"Oh, yes."

I lay down on my back in Joanna's bed, and she put her head on my shoulder. She said, "I liked going slow. A guy has never gone that slow with me."

"I like going slow. The more you enjoy it, the more I enjoy it; and the more time we spend getting each other excited makes the finale more pleasurable for me. I don't like rushing anything about being with a girl."

Joanna smiled at me and then said, "Well, Kaitlyn is in a big rush." I laughed. "You're not going to tell her about this, are you?"

"Not if you don't want me to."

"I don't want you to. I know she's trying to be helpful, but I wish she wasn't so bossy."

"My sister? Bossy?" I guffawed and Joanna joined in.

"Seriously," said Joanna. "The only reason you're here tonight is she badgered both of us into agreeing to be a couple for the summer."

I didn't like Joanna's last sentence. "I'm here because I want to be. And I want you to spend the night with me at my house."

Joanna got off my chest and looked me in the eye. "Are you sure your parents would be okay with me spending the night in your bedroom?"

"Absolutely. I told you about the deal. And as they like you a lot, I suspect they'd let you spend the night with me even if the deal wasn't in place."

Joanna put her head back on her shoulder. "I still can't."

"Why not?"

"Why? Well...I'd have to get permission from my mom, and she and I never discuss sex. We act like neither of us has sex. She got me an IUD when I was fifteen and that's it. She's probably over at her loser's place right now getting fucked. She never brings her men here until they're moving in, and then she acts like they never fuck."

I shrugged. "You've slept over at our house a million times. Tell her you're sleeping over again."

Joanna shook her head. "I could do that, but...if I spent the night with you, it'd be like a public declaration that you're my boyfriend, and you're not."

I was shocked by her statement. "I am your boyfriend."

"Oh, I know. I agreed to it; you agreed to it. But we're only acting like we're boyfriend and girlfriend. Then it'll be all over at the end of the summer."

I realized Kaitlyn pushing us together so hard had caused a massive negative side effect. "Did you want to make love tonight?"

"I had agreed to do it."

Not the answer I wanted to hear. "Before I entered you, did you want me to fuck you?"

Joanna blushed lightly. "Yes."

"And I wanted to fuck you. Do you want to make love with me again some other day?"

Again, Joanna blushed. "Yes."

I gave her a gentle hug. "In my book, that makes us boyfriend and girlfriend."

* * * *

The Saturday before we were to leave for the lake, I was over at Joanna's again. Sex had changed considerably between us. The first time, Joanna had been passive, letting me do what I wanted. Now, she was much more aggressive. Tonight, as soon as I got in the door, she pulled down my shorts, pushed me onto the couch and sucked me off. After I had cum, I started to get up to go to her bedroom, but instead Joanna threw a towel on the couch and told me to eat her pussy there. I expected us to go to her bedroom after I had made her cum, but instead Joanna had me sit up, and then she straddled my lap and bounced up and down on my cock until I came. We kissed for a while as she continued to sit on my lap, our juices slowly leaking out and on to me.

"You're such a naughty girl," I said.

Joanna smiled. "I wanted to do something different. I like different." She liked different positions, but this was our first time in a different room.

"I loved different," I said with a big smile. Joanna kissed me. "But you weren't just naughty tonight. You were very naughty Thursday, going braless while we played tennis." Joanna chortled. "You kept distracting me with your bouncing tits. That was very unfair."

Joanna laughed some more. "Kaitlyn dared me to do it."

"Did she dare you to flash me as well?"

Joanna cracked up. "Yes, she did. Then she dared me to put your hand on my tits on the drive back to the apartment. I told her I didn't want to go that far with you. You should have seen the face she made." Joanna roared with laughter. "She was practically pulling her hair out. I love that she has no idea we're fucking."

"Well, she'll know Wednesday when you sleep over." I had finally convinced Joanna to spend the night with me as a dry run for the week at the lake.

"You haven't told her I'm going to sleep over, right?"

"Right." Per Joanna's instructions.

"I'm going to let her talk me into it at work on Tuesday." She gave me a big wink. "But we're only going to sleep together. Maybe I'll let you feel my tits. But the panties are going to stay on." Joanna roared with laughter again and then gave me a kiss. "I'm having so much fun with you."

"And I with you." Fun was the word we had settled on to describe our feelings for each other. It was too early to use love. It had taken several weeks, but Joanna had finally got comfortable talking with me. She liked to tease and act saucy, and she was getting a big kick out of having sex with me behind Kaitlyn's back.

I said, "Let's go to your bedroom for round two."

Joanna pulled off my cock and pushed the towel against her pussy. When she had cleaned herself, she handed me the towel and I wiped off.

I got up and we headed toward her bedroom. Joanna said, "Let me get another towel." She winked at me. "It's a good thing I do all the laundry."

I was lying on my side on her bed when she came in. She lay down next to me and asked, "Do you like me, Brandon?"

Was this a trick question? Of course I liked Joanna. "I like you a lot, Joanna. You're very special to me. I'm very glad we're dating. You're my naughty girl." Was she wanting me to us the 'L' word? I was getting close to telling Joanna that I loved her, but I wasn't quite there yet. I didn't want to overstate my feelings or my commitment to her.

Joanna was quiet, like she was waiting for me to say more. I didn't have anything more to say. Then she pushed me on to my back. She wrapped her hand around my soft cock and said, "There's one way I'll never be naughty."

"How's that?"

"I'll never have a threesome with you and Kaitlyn."

I laughed. "I'd never expect you too."

"Almost every boyfriend I've had has asked me to arrange a threesome with Kaitlyn."

"Seriously?" Joanna nodded. "That's terrible!"

"It is! Why would I arrange for my best friend to have sex with my boyfriend? He's my boyfriend! I don't want to share."

"As you should." Then I had a wicked thought. "Though seeing some girl-girl action between you and Kaitlyn would be hot."

Joanna's eyes narrowed. "Don't go there. We're both heterosexuals. If we were open to a sexual relationship, we'd have done it long ago. How would you respond if I told you I want a threesome with you and one of your buddies, and I want to see some guy-guy action during it?"

I snorted. "I'd gently decline the opportunity."

"So you want to see your sister naked having sex?"

I was instantly mortified. "Of course not. It's just that..."

Joanna laughed at my embarrassment. "You were thinking about it being hot to see me with another woman, and not the woman you were suggesting?"

I was thankful she had offered me a way out of my faux pas. "Exactly."

Joanna nodded. "But seriously, asking for a threesome is the kiss of death for a relationship. It tells me he only thinks of me as a provider of sex."

I kind of felt like this was a test, that Joanna was keeping her hand on my cock to see if a talk of a threesome would get me hard. She continued to grasp my cock lightly in a non-exciting way. Time to try to get myself out of this test. "I'm sorry I suggested the girl-girl action between you and Kaitlyn. I only want to be with you. And joking about you and Kaitlyn was particularly poor taste as she's my sister and she's very happy with Paul."

Joanna cocked her head. "Are you sure?"

Sure about what? "They're very happy whenever I see them."

"How much time do you spend with them?"

I wasn't prepared for this line of questioning. Kaitlyn and Paul were obviously happy together. Paul traveled a long way every weekend to see Kaitlyn. They slept together Friday and Saturday night. I assumed they fucked like bunnies on both of those nights.

I said, "Look, you told me that Kaitlyn loved him."

"I know. Does she act like she's in love with him when you're with them?"

I was stunned by this development. "I see them only a little before they go out for the evening." I left for work before they got up. "How much time do you spend with them?"

"None. But she sounds different now when she talks about him. She liked him a lot more at college."

"Has she told you anything about their relationship changing for the worse?"

Joanna shook her head. "No, but Kaitlyn never says anything negative about a boyfriend while she's dating him. After she's broken up with him, she tells me everything."

I wasn't comfortable talking about how my sister might not be as in love with her boyfriend as it appeared. I wanted her to be happy. "I'm going to think she's in love with him until I see otherwise."

Joanna smiled. She still held my cock loosely in her hand. "Do you know who I think she has the hots for?"

"Besides Paul? No one."

Joanna smiled bigger. "You."

"Me?" I chortled. "No way."

"You should have heard her when she suggested to me I have you as my summer boyfriend. Boy, did she ever sing your praises. 'Every girlfriend he's had has said he's a great boyfriend.'"

Suddenly, I felt very defensive. I couldn't help but play down her statement. I shrugged and said, "Well, it's true."

"She's much more excited and animated talking about how you're a great boyfriend than she is when she talks about Paul."

Why the hell was Joanna bringing this up? I had an attractive sister, but she was my sister. There was no way she'd have any interest in me. "That doesn't mean anything."

Joanna gave me a knowing smile. "Kaitlyn closely monitored your relationship with your girlfriends. She knew when you two started fucking based on how your girlfriend replied when she asked, 'How was last night?' Kaitlyn would spend hours discussing with me the body language and word choices of your current girlfriend and your prior girlfriends. Your girlfriends' smiles always got really big after you started fucking; and after you broke up with them, their smiles were never as big with their later boyfriends."

Joanna liked to tease, but this was not a topic that was appropriate to tease about. She had me flustered and angry. I tried to shut down her teasing by saying, "You're lying."

Joanna shook her head and crossed her heart with her left hand while continuing to hold my cock with her right. "God's truth." She stroked my cock, which was now semi-hard. She smiled and looked at my cock. "Well, hello there." Even though I was flustered, I could feel my excitement rising. "You were soft until we started talking about your sister."
I felt even more flustered. "Just my natural recovery."

Joanna stroked my cock until I was hard, then she gave me her knowing smile again. "I think I know why it's so important to Kaitlyn that we fuck. She sees me as her surrogate, and this summer is the one chance for her surrogate to fuck you."

"That's bullshit, Joanna."

Joanna laughed mockingly. Then she surprised me by lying face down on the bed while hiking her ass up into doggie-style position. She looked back at me, gave me her knowing smile and said, "Fuck me, Brandon. Make your sister happy yet jealous."

I pounded Joanna hard and fast. I didn't enjoy fucking her like I normally did as I couldn't focus very well. When we were done, I said, "Please don't tease me about Kaitlyn again, okay?" It wasn't a suggestion.

Joanna put her hand softly on my chest and said contritely, "I'm sorry, Brandon. I went too far. Kaitlyn likes me teasing her about you, and I thought you might be the same."

I felt my anger melting. "I'm not."

I was lying on my back on the bed, and Joanna was lying on her side facing me. She leaned forward and kissed me lightly on the cheek. It was a soft kiss filled with affection. At the same time, she pressed her tits into me, stirring up my lust for her.

Joanna said softly, "I know I should promise to not tease you again about Kaitlyn."

When the promise didn't come, I said, "But you're not going to."

Joanna said huskily, "I don't know if my having you as my boyfriend makes Kaitlyn jealous, but it excites me to think it does." Joanna gave me a kiss filled with the promise of lots of hot sex. "You want me to get excited, don't you?"

I decided I had overreacted. If a harmless fantasy got her excited, I'd be stupid to put an end to it. "Yes, I want you to get excited."

Joanna gave me another long, soft kiss. "So it's okay if I tease you a little about Kaitlyn?"

I turned my head as Joanna moved to give me another kiss, so we'd kiss on the lips. She was such a good kisser; she knew how to use timing and pressure to communicate so much. I surrendered. "A little's okay."

"When I tease you about Kaitlyn, I'll be sure to make it up to you." Then she kissed me on the lips while pressing her naked body against mine.

* * * *

Saturday morning of our week at the lake was my first extended time with Paul, and he seemed very much the great guy Kaitlyn described. Mom got us up at six and, while Kaitlyn, Joanna, and I were yawning and slow to move around, Paul was hauling out to our minivan whatever he could find that was ready to go. When there wasn't anything to haul out, he was asking my mom what else he could do. Once we left home, we stopped at a gas station to fill up and grab a quick, hot breakfast, and Paul insisted on paying for everything.

In the minivan, Dad and Mom were in the driver and passenger seats. Paul was behind Dad and started playing on his tablet once we left the gas station. Kaitlyn was behind Mom. The third row of seats could be folded up or down and we had the right two-thirds as a bench seat. That's were Joanna and I were, snuggled together with my left arm draped across her shoulder. I had a warm, contented feeling. Joanna and I had had a great time Wednesday night, chatting with Kaitlyn and my parents while watching a DVD. After we had retreated to my bedroom, we had spent a lot of time kissing and talking quietly, did a quiet 69 and then cuddled naked until we fell asleep. Last night was also wonderful.

Kaitlyn turned and looked at Joanna, then used eyebrow raises and lip movements to apparently ask why Joanna and I hadn't fucked last night. I watched Joanna use similar facial movements to blame me for not consummating our relationship in our house. The truth was that Joanna had been the one who had wanted to do only oral, and the thought of pulling yet another one on her best friend had fired her up to give me the most pleasure possible without making much noise. I had been quite satisfied with being sucked off twice.

After I thought Joanna had had enough fun silently teasing Kaitlyn, I said, "I got hit by a golf ball yesterday at work."

Kaitlyn asked, "You did? Were you standing in a fairway?"

"No! I was in the trees, spraying herbicide on poison ivy. I was spraying away when suddenly I was whacked in the back just below my right shoulder blade."

Kaitlyn showed her compassion for her big brother by laughing at my pain. "That sounds like it hurt."

"It did! I did the man-that-hurts-like-hell dance for a few minutes then this golfer called to me, 'Have you seen a Titleist number five ball around?' It had been his ball that hit me. I wanted to throw the damn thing at him. I hope he got poison ivy from it."

I loved my job, except for the golfers.

Joanna, Kaitlyn, and I talked as Dad drove on and on. At one point, Joanna said, "I'm kind of cold. Is there a blanket I could put over me?"

We kept a blanket in the minivan for such occasions. Kaitlyn gave it to Joanna, and she put it over her and most of me, tucking one end behind her left shoulder. Once the blanket was over her, Joanna grabbed my right hand and pulled it across to her. She slipped it under her t-shirt and pushed it upwards. She said quietly to me, "Help keep me warm, Brandon."

I knew what she wanted as Joanna hadn't worn a bra this morning. I looked over at Paul and he was totally engrossed in his game. Mom couldn't see us, and the blanket would probably prevent Dad from being able to see us in the rear-view mirror. Kaitlyn, on the other hand, would definitely know what I was doing. I raised my hand up and cupped Joanna's tit.

Joanna smiled at me and then said to Kaitlyn, "He's such a good boyfriend. I'm so glad you suggested we date this summer."

I glanced at Kaitlyn. She rolled her eyes and said, "I thought you'd have a good time together."

Joanna pushed her tit into my hand and said, "We have a great time together."

For the next twenty minutes, I felt up Joanna while she talked with Kaitlyn. I put my head on her shoulder and slumped against her, so hopefully it looked to Dad like I was snoozing while leaning against her. I didn't feel very guilty about what I was doing as Kaitlyn had wanted Joanna and me to do this when she had driven us back to Joanna's apartment after tennis. When I finally stopped, Joanna gave me a kiss, and then turned to Kaitlyn. "He listens so well to me." Kaitlyn rolled her eyes but didn't say anything.

The three of us kept talking until Paul suddenly stretched. He announced to no one in particular, "Out of energy". He turned to Kaitlyn and said, "How you doin', Babe?"

"Doin' fine. Been talking with Joanna and Brandon."

Paul asked my dad, "How much further?"

"About an hour."

"Oh, Okay. Joanna, trade places with me please?"

Somehow, Joanna and Paul managed to swap spots in our cramped minivan. Paul had a hold of his tablet. "Let me show you Total Galactic War."

Paul walked me through all the features of it. He was a leader of one of the top alliances in the game, with members all over the world. He showed me screen after screen, with lots of detailed statistics about units and buildings. He discussed strategy and tactics with me. He showed me videos of battles he had fought. The back seat had been cozy for Joanna and me, and now I felt like Paul was practically sitting on my lap. Paul was oblivious to my discomfort and lack of interest. I occasionally sneaked a peek at Kaitlyn, and she'd silently laugh and roll her eyes. Paul talked enthusiastically about the game all the way to the lake house. I had never been so thankful to reach it.

* * * *

After lunch, the six of us went out in the ski boat. Dad drove and Mom was in the seat next to him. Behind those two seats were two benches. Joanna and I were on one bench, and we were facing Kaitlyn and Paul on the other. The boat was twenty-some years old and didn't have the wakeboarding hardware that newer boats had, but it was great for water skiing. As we raced across to Dad's favorite place to ski, I couldn't help checking out my sister. She was wearing a very sexy bikini; the top was purple, and the cups had a slanting cut that showed quite a bit of boob flesh. The top also looked like it compressed Kaitlyn's boobs upwards like a push-up bra. The bikini bottoms were black and low cut with a single wide purple band across the top. It looked expensive to me. I tried not to look at her, but there wasn't much else to look at.

Finally, to cover my checking her out, I asked, "That bikini. What's the material?" I had to yell to be heard over the wind and the engine.

"Neoprene," yelled back Kaitlyn. "It's specially designed for water skiing."

Paul yelled, "I bought it for her." His arm was around Kaitlyn's shoulders possessively. "I like to buy her things she looks sexy in."

I looked over at Mom and Dad as I wasn't sure how they'd react to Paul's announcement. They were facing forward, scanning the water in front of us. I guessed they couldn't make out what we were saying over the wind and the engine roar.

Joanna yelled, "He buys her lingerie."

A surprised look came over Paul's face before nodding in agreement. "I buy her something every Sunday night when I get home and have it sent to her. Then I spend the week imagining how good she'll look in it." A lustful, goofy grin crossed his face.

Joanna replied, "She gives us girls at the office a fashion show every Friday."

Paul laughed while Kaitlyn blushed. "She does?"

"Yes. She unbuttons her blouse, opens it up and shows off the top half. Then she describes the bottom half."

Paul looked at Kaitlyn, and she gave a small shrug, admitting to it. Paul said, "You never told me." Kaitlyn talked quietly to Paul for a few moments. He grinned hugely and squeezed Kaitlyn. He basked for a few minutes in the glow of Kaitlyn showing off his lingerie purchases to her co-workers.

Paul leaned forward and yelled to me, "You should buy Joanna some lingerie. Expensive, sexy stuff. Then she'll fuck you."

Kaitlyn whacked Paul and pulled him back. Paul looked at her and saw she was angry. She clearly felt Paul's last comment was over the line.

And it was. I wasn't going to buy Joanna expensive lingerie. I didn't have that kind of money. I had never bought any of my girlfriends lingerie. A shirt or sweater for Christmas or her birthday, yes. Lingerie or bikinis, no.

I looked at Joanna. She had an unreadable look on her face. Did she want me to buy her lingerie? Was that why she had brought up Kaitlyn's fashion shows? Bringing them up had made Paul a very happy man.

Kaitlyn whacking Paul hadn't been the act of someone in love. She hadn't acted lovey-dovey with Paul at all today. She had acted instead like someone on the downside of their relationship, still caring but very much aware of the other's faults.

* * * *

We spent the day skiing. My family were all excellent water skiers. Joanna had come to the lake several times and had gotten pretty good. Paul hadn't skied much so he was the least skilled. However, he took every fall with good humor and enjoyed skiing as much as the rest of us. When Mom or Dad skied, I steered the boat while Kaitlyn was the lookout. Dad had two rules about water skiing: no alcohol when going out on the water and always having a lookout as the driver had to continuously scan the lake for other watercraft. Sadly, far too many other ski boats were driven by incredibly self-absorbed, obnoxious, and rude jerks. And far too many people were buzzed while operating high-speed watercraft.

Around six, we arrived back at the lake house. My grandfather had bought this land when my dad was a young boy, and the place where he had wanted the lake house would get covered by the lake whenever there was an exceptionally heavy rainy season. So Grandpa had the lake house built on stilts. The ground level was a covered staircase that led to the lake house proper. The staircase landing was a mudroom with a washer and a dryer and was where we stored the stuff from the boat. The second floor had an open area for the living room, dining room, and kitchen. Four doors went off from the living room to the three bedrooms and the only bathroom. A deck wrapped around three sides of the living area, and a grill was on the deck right outside the kitchen. The view of the lake from the deck was spectacular.

Once we were all upstairs, Dad said to Paul, "Our tradition is the men cook dinner, and the women clean up; then the women cook breakfast, and the men clean up."

Paul said, "I don't know anything about cooking. I'd be no help to you." He picked up his tablet.

Dad said, "You can help me with the grilling."

"I don't know anything about grilling. I'd be useless. Could we have dinner delivered?"

Dad chuckled. It was a forced chuckle to cover his rising anger. "We're out in the boonies. Nobody delivers out here. Besides, we've already bought the food."

Paul said, "I'm a big guy and all I'd do is get in your way. I know you're willing to try to teach me, but I'm not going to be a good student because I don't want to learn how to cook. My dad and I never cook. I'm sorry."

Paul turned on his tablet while plunking down on the couch. Dad's face was bright red and I was afraid he was about to say something ugly.

Joanna rushed over to Dad, put her arm around him, and said soothingly, "It's the same way at my house. My mom never cooks. All she taught me was how to microwave." Joanna looked at Mom. "You've taught me everything I know about cooking." Mom beamed at the compliment.

Kaitlyn went to the other side of Dad and hugged him. She said, "I'll help," in an obvious attempt to defuse the situation.

I said to Kaitlyn, "Don't worry about it. Dad and I can handle it." I turned to Dad. "We're a good team, aren't we?"

Dad had swallowed his anger by now. He smiled and said, "Yes we are, Son."

* * * *

While Dad and I prepared dinner, the women took turns showering. Dad and I grilled up bacon-wrapped filet mignon and some veggies. It tasted great, but the dinners always tasted great at the lake house. After dinner, the men took turns showering while the women cleaned up. Once that was all done, we sat on the deck and talked while watching Joanna braid Kaitlyn's hair. Joanna had been braiding Kaitlyn's hair for almost as long as they had been friends. She had said Kaitlyn had the perfect hair for braiding. Ironically, Joanna preferred to have her hair down most of the time, so Kaitlyn rarely had a chance to return the favor. Joanna spent a lot of time shaping and teasing Kaitlyn's hair into the right condition, and then her hands were a blur as she weaved the hair into a braid. Kaitlyn turned around and showed off the braid.

Paul was stunned by Joanna's hair-weaving magic. He stood up to admire it. "That's amazing! It looks so beautiful, and you did it so fast! I've never seen anything like that before." He looked at Kaitlyn. "Your hair looks fantastic."

I knew this style was called a Dutch braid as the braided part of Kaitlyn's hair stood on top of the rest of her hair, which was pulled tight in the back. Joanna knew many different ways of braiding Kaitlyn's hair, and my favorite was when she'd make braids all around Kaitlyn's head, so the braids looked like a crown.

Kaitlyn smiled happily before looking at Joanna appreciatively. Joanna looked down, embarrassed by all the praise.

I said, "In Ohio, Joanna would have to attend beauty school for 450 hours before she could get a job braiding hair."

"450 hours?" Paul asked incredulously.

"Yeah. Becoming a cop requires 580 hours of training. Ohio is a lot more worried about bad hair-braiders than bad cops."

* * * *

At nine, Mom and Dad said, "Have fun kids" and left for a walk. Based on prior years, they'd be back at ten, and they'd expect us to be in bed then. Once they were back, we were to do nothing more than quietly cuddle and kiss.

As soon as the door closed, Kaitlyn took Paul's hand and led him to their bedroom. I smiled at Joanna, took her hand and led her to our bedroom. Joanna and I stripped off our clothes. Joanna laid out a nightshirt to wear later. We lay down on the bed and kissed softly while running our hands over each other's bodies. I pushed my tongue forward and Joanna opened her mouth to receive it. I brought my hand to her tit...

...when Kaitlyn started making loud "Oh!" sounds. The walls were thin, and it sounded almost like she was in the same room as us. The sound of my sister moaning her pleasure broke the mood for me. I continued with the kisses and strokes, but the constant "Oh! Oh! Oh!" kept distracting me and I couldn't get into it. Finally, I gave up and said, "Let's go to the couch. We'll be more comfortable there."

Joanna said, "Your sister is going to be pissed we aren't making noises like they are."

I sat up, grabbed my underwear, and tossed Joanna her panties and nightshirt. As I pulled on my shorts, I said, "Pissing off sisters is a part of the job description of a brother."

I led Joanna to the couch and had her lean against me. I slowly kissed her shoulders. Kaitlyn stopped moaning, and I started getting back in the mood. Then the thumping began. Thump! Thump! Thump! And of course, Kaitlyn oh'ed in time with the thumps. Joanna rolled her eyes at the thumping sound. It was so damn embarrassing; I felt embarrassed for Kaitlyn and Paul. The thumping sound lasted several minutes and once it was done, I whispered to Joanna, "We're not doing anything tonight. I'll get us some privacy tomorrow." Joanna moved her head slightly up and down in a sign that I took to be more disappointment than agreement.

I pulled her into a hug and wrapped my arms around her. "I'll make it up to you tomorrow, I promise." I gave Joanna a light squeeze.

That was when I heard the door open. I turned to see Kaitlyn in a nightshirt stomp over to in front of us. "What the hell are you two doing?"

I said, "Ummm..."

"Or more correctly, why aren't you doing what you should be doing?"

"You two were so loud..."

"What the hell!" Kaitlyn's eyes blazed. "We were fucking! Did you expect us to fuck quietly!"

Joanna wasn't saying a word and was looking off into space. I said, "Well, no but..."

"You knew Paul and I fucked, right? You've heard us fuck back at our house, right?"

"It wasn't nearly as loud there."

"Well, we're not fucking now. You and Joanna have thirty minutes before Mom and Dad get back."

I liked to go slow and I wasn't sure we'd be done in thirty minutes. I didn't want to rush through our first lovemaking session at the lake house. "I'm not in the mood now."

"MEN!" Kaitlyn yelled and then stomped off to her bedroom, slamming the door.

Joanna said, "I told you she'd be pissed."

I chuckled. "You did. You know Kaitlyn well." I shook my head in frustration and disbelief. This was the first time Kaitlyn had brought a guy to the lake house. In the past, she had gone on the walk with Mom and Dad. I hadn't considered the privacy issues of both couples wanting to make love at the same time.

I decided to do what I could to salvage the evening. I put my arm around Joanna, and we kissed gently for a while. I said quietly, "You were very naughty this morning in the minivan." Joanna's eyes lit up and she chuckled. "Were you teasing Kaitlyn?"

"Yes. Thanks for going along. It got me soooo excited."

I felt bad again. "I'm sorry, Jo--"

"Hey! Hey! It's okay. If you're not in the mood, you're not in the mood. I don't want you to force anything. There'll be nights when I'm not in the mood, and I know you'll respect that."

"Thanks, Joanna."

"I really like that you don't pressure me, that it's always my choice to have sex and not my duty. I wish my other boyfriends had been that way."

I smiled. "So, you like having me as your boyfriend?"

There was a pause, and then Joanna said, "I like dating you." I was disappointed that Joanna hadn't embraced having me as her boyfriend. But before I could get upset, Joanna distracted me by raising her hand to my head. She said, "I really like your hair," as she ran her fingers through my dark brown hair. "It's a good length and I like how you get it cut." She moved her hand down and started running a finger over my eyebrows. "And I like your eyebrows. They're a good size and shape."
"I want to grow a unibrow, but my eyebrow follicles keep not cooperating."

Joanna snorted, and then started making circles around each of my eyes with her finger. "You have beautiful eyes." My eyes were blue like Kaitlyn's, but not quite as brilliant.

"Thanks."

Joanna started rubbing my nose with her finger. "I like your nose. It's not too big or too small."

"The best nose is the one you don't notice." That earned a little grin.

Joanna started circling around my lips with her finger. "I really like your smile. It's a handsome smile, and I like that you smile a lot. And I like that you say a lot of fun things. Sometimes silly, sometimes funny." Joanna dropped her finger, so it made circles around my heart. "And I like that you make me feel like I'm a lot of fun to be with."

"You are a lot of fun to be with. If I had known how much fun you'd be to date, I would have started dating you long ago."

Joanna leaned in for a kiss. When we were done kissing, she said, "Tomorrow, get us some privacy so we can have some fun."

* * * *

I didn't sleep well that night because I was angry at Kaitlyn and her antics. It was none of her damn business what Joanna and I did. And I was angry at Joanna for hiding the fact that we were lovers from Kaitlyn, which had prompted her antics. Finally, I was angry at myself. If I had been able to ignore the sounds of Paul and Kaitlyn having sex, then the hiding would be over, and Kaitlyn would have been happy instead of pissed. I was the person mostly at fault for how things had turned out. I decided on a plan to make things right -- during the next afternoon session, Joanna and I would stay in the lake house while everyone else went out on the lake.

I groaned when I heard the knock on our door. It was 6:30, time for Joanna to get up and help make breakfast. She threw on her nightshirt and slipped out. I dozed off, to be awakened a little later by the announcement that breakfast was ready.

When breakfast was over, I was concerned Paul would balk at helping to clean up, but it was quite the opposite -- he cleared the table all by himself and loaded everything close to the dishwasher into it. Of the four young adults, he was the only one in a good mood.

While we were changing into our swimwear, a front started coming in. No rain had been in the forecast when we had checked yesterday morning, but it sure looked like rain was coming now. The wind blew hard, black clouds rolled in, lightning flashed, thunder boomed, and rain began to fall in buckets.

The lake house wasn't a lot of fun when it rained. We had satellite, a game system and a number of DVD's, but sitting around got old after a few hours. Normally when it rained, we'd go shopping at the wide spot in the road that was the nearest town, but, as we had arrived yesterday, there wasn't anything to shop for.

Another downside of the rain was that any idea of Joanna and I getting some private time went out the window. I felt rotten about having to break a promise, and Joanna didn't seem too happy with me when I told her I wouldn't be making it up to her today.

After lunch, Mom and Dad took their traditional nap. On non-rain days, Mom and Dad kicked us out of the lake house so they could "nap better". When we were kids, we'd go to a nearby lake house and play with other kids. When I was fourteen, I realized nap time was when Mom and Dad made love. When it rained like today, Mom and Dad still took a nap but made no noises and told us to be quiet.

When Mom and Dad went to their bedroom, Paul went to his bedroom and closed the door. Kaitlyn turned to Joanna and said, "Let's go to your bedroom and talk."

I asked, "About what?"

Joanna said, "Girl talk," as she was already moving toward our bedroom.

I sighed. "Let me get something to read first." I grabbed an old novel I kept in my bedroom and read it on the couch for the next hour.

* * * *

When Mom and Dad got up, I played video games with Paul and Kaitlyn while Joanna read a novel. When we finished one game, I asked, "Anyone interested in going for a walk in the rain?"

Joanna said, "If you don't mind, I'd prefer to keep reading."

Kaitlyn said, "I'll go."

No one else was interested, so Kaitlyn and I went. It was a warm rain, so Kaitlyn and I wore swimwear, and each of us carried an umbrella. We wandered along the lake shore and talked about different memories of prior trips to the lake. Then Kaitlyn asked me, "How are things between you and Joanna?"

"Good."

Kaitlyn gave me a 'don't-give-me-that-shit' look. "Care to expand on that?"

"Not really."

We walked for a bit more. Then Kaitlyn said, "Please."

"Please what?"

"Please tell me more about what's going on between you and Joanna. She's my best friend, I think your dating her is really good for her, and I want to know more about how it's working out."

I sighed. I wanted to tell Kaitlyn that it was none of her business, but Joanna was her business. "I'll make you a deal. I'll tell you more about Joanna and me if you tell me what your girl talk with Joanna was about."

"A deal?" asked Kaitlyn disgustedly. "You want to make a deal?"

I gave her a little smirk. "I do."

"Oh, okay," she said resignedly. Then added, "It was about our plans for tonight."

"Which are?"

Kaitlyn didn't reply for a while, and then said, "Offer me another deal."

I chuckled before wondering what the plans could be. "How about this; I'll tell you more about Joanna and me if you tell me why you and Joanna are such great friends."

"Okay, but only if you go first!"

I laughed. I never knew how seriously to take what I considered to be Kaitlyn's overreactions. I suspected she was quite fine with the second deal but didn't want to show it.

I said, "When you're not around, I've been trying to convince Joanna to relax, to be the way she wants to be and do what she wants to do. I think she's been afraid that if she does something wrong, I'll get upset and break up with her. I feel like I'm finally starting to see the real Joanna and she's a lot of fun. Very unpredictable, in a good way. Very impish, but not in a bad way. I'm very happy you talked me into going out with her. I'm not sure what will happen long term. Your turn."

"Okay. Joanna and I are such great friends because we always support each other and never judge each other." Kaitlyn sighed. "So many people dump on her because of her failed relationships. I'm the opposite -- every time she's started dating someone, I've been supportive of her choice, and I've tried to give her advice on how to make it work. Every time she's broken up with a guy, I've said you did your best, learn from it and move on."

"Why?"

"Why?" Kaitlyn countered in surprise.

"How can you keep being supportive of her when she keeps making the same mistakes?"

"Well, it's..." A big sigh. "I'm the same way. I'm drawn to guys I can easily manipulate, even though I lose all respect for them once I manipulate them. I keep saying I'll date better, but I don't. I'm an awful person."

I laughed, and then I realized that Kaitlyn was being serious. "You're not an awful person. You're a very caring person."

Another long sigh. "Thanks for saying that. I do care. I want the people around me to be happy. I'd do anything to help Joanna be happy. It's just that...I try too hard at times. Like last night -- I shouldn't have blown up at you. I'm sorry I did. Joanna is so much happier and self-confident now because of how you treat her. You two are going in the right direction, but I can't resist the urge to push you two along."

"So after lunch, you asked Joanna to have a talk, and then you and Joanna came up with a plan for getting me to make love to her tonight?"

Kaitlyn sighed. "Yeah. Stupid, right? I should just leave well enough alone. But I can't. It's too important to me." She added pleadingly, "Please go along. It'll be a lot of fun, and I think it'll be a wonderful experience for my best friend."

I was going to go along. After last night's fiasco, I was ready for Joanna to take charge, even if Kaitlyn was prompting her on what to do. But I couldn't admit that to my sister. Instead, I gave a half-shrug. "We'll see what happens."

"You're such a shit at times," Kaitlyn said, in an almost respectful tone.

I decided to change the subject. "Let's head back."

"Okay."

We were quiet for a little bit. I said, "I hope your plan for tonight doesn't involve me feeling up Joanna in front of you. Didn't that bother you?"

Kaitlyn shook her head. "If it had been anyone else, I would have told them they were behaving inappropriately. But because it was Joanna, I went along with it and embraced that she was having fun at my expense."

I smiled at the memory. "It was fun."

"I don't judge her, and she doesn't judge me. It's great having a friend who doesn't judge me. I've told her things that would freak out anyone else..." Was she thinking about all the hours she had spent discussing me? "...but she accepts that that's the way I am. She teases me about those things, and I like that she teases me because it tells me she really does accept me as I am."

That fit everything I had seen of the two of them. Then something struck me from what she had said. "Do you manipulate Paul?"

"If I tell you, will you promise to go along with the plan for tonight?"

I laughed again. "I promise to do whatever Joanna and I enthusiastically agree to do."

"Again, you're such a shit." The way she said it made it almost sound like a compliment. "He's not easy for me to manipulate. The things I'd typically manipulate a guy for -- fancy dinners, clothes, lingerie -- Paul gives to me openhandedly just for being his girlfriend. He's happy being a big nerd who loves his toys and his game; and he's not open to changing. I respect him for standing his ground with me. He's very much a stereotypical guy in that as long as we have sex regularly, he's thrilled to have me as his girlfriend. But I don't consider having sex with him manipulating him as we both enjoy it a lot. He's not the most socially aware guy, and he'll occasionally say something really stupid, but, like me, he wants the people around him to be happy, and he'll do what he can to make them happy. What he thinks to do is spend money as he has so much."

"So you're happy with Paul?"

"I didn't say that," Kaitlyn said sharply. "I like that I can't manipulate Paul. It keeps me from doing destructive behavior. I don't like that I can't manipulate Paul because he's bullheaded."

Kaitlyn was sounding down on herself again. "You don't manipulate me."

"Only because you're so hard to manipulate. I tried to think of ways to manipulate you into going out with Joanna, but I struck out. I finally basically begged you to do it. You've been driving me crazy all summer because you keep ignoring my advice and have gone so slow with Joanna. I want her to experience what having a caring lover is like." Her concern for Joanna was touching. "Trying to push you into doing something is like trying to push a brick wall." I laughed. "I wished I could date a guy like you, who I can't manipulate because he's got great principles and sticks to them."

That was a punch to the gut. A long silence followed. I didn't know what to say. After a while, Kaitlyn said, "Thanks for dating Joanna. And thanks for inviting me to go along with you two. It's been a lot of fun. You're a really good person, Brandon."

The way Kaitlyn said that, I felt like she was crushing on me. Joanna had told me that Kaitlyn had the hots for me. I had never gotten that vibe from her before, but I was getting it now.

I'm being stupid. Kaitlyn had a boyfriend, and she was doing her best to set me up with her best friend. I was her brother. I wasn't even on her radar.

The ensuing silence and her comments pushed me to consider some uncomfortable thoughts. Did I think of Kaitlyn in non-brotherly ways? Did I have something of a crush on her?

I respected Kaitlyn. She was smart, competent, and effective. She enjoyed teasing and being teased. She never got too bent out of shape and forgave things as soon as I said I was sorry. She knew how to keep private what should be private. Unlike most brothers, I felt like I could let down my guard around her and just have fun. So many of the girls I had dated had seemed shallow compared to her. If I had met someone like Kaitlyn at college, I would have definitely asked her out.

But she was my sister. And that was that.

* * * *

The rain let up in time for us to grill dinner outside. While Dad and I were prepping the food, Paul came into the kitchen and said, "Sorry about yesterday. I'd be useless in the kitchen, but I know how to do laundry, so I'll do all the laundry. I'd just get in your way here." Then he left the kitchen and joined the girls.

A little while later while Dad and I were out at the grill, Kaitlyn came out and joined us. She said, "I apologize for Paul. I didn't know he'd do this."

Dad said, "I'm disappointed he's not willing to try to learn how to cook. Your mom and I think everyone should learn how to cook."

Kaitlyn sighed. "It's not about learning how to cook. He'd be fine learning how to cook. It's about his game. He gets a certain amount of energy per hour and after several hours, his energy reaches capacity, and he stops getting more. When he gets in from skiing, he wants to play his game. He chose to do the laundry instead of helping with cooking because it fits his gaming schedule." Kaitlyn looked very unhappy. "Do you want me to help out with dinner from now on?"

I said, "Don't worry about it. Dad and I have everything under control." Dad nodded his head in agreement. I preferred taking on Paul's responsibilities to shifting them to Kaitlyn, and Dad seemed to be of the same mind.

* * * *

When Mom and Dad left for their walk, Kaitlyn and Joanna immediately stood up. We had been playing a video game before Mom and Dad left and were seated around the coffee table. Kaitlyn went to the dining table and turned one of the dining chairs, so it faced the living room area. She said to Paul, "Come sit here."

Paul looked at me, shrugged, and went over to Kaitlyn.

In the meantime, Joanna had one of the high-back chairs in the living area turned so it was facing Kaitlyn's chair. It was like the dining chairs except it had a padded seat. She said to me, "Come sit here."

I snorted. "Yes, boss."

Once I was seated, Kaitlyn said, "Stay there, boys. We'll be back shortly." Then she and Joanna went into Kaitlyn's bedroom.

Paul said, "They're planning something."

No shit, Sherlock. "I have no idea what."

Paul raised his beer and said, "Well, hopefully, I can finish my beer first."

As there hadn't been much to do today, we had been drinking steadily all day, and all four of us were feeling no pain. Paul and I sipped our beers and waited. He and I were dressed as the men always dressed in the evening at the lake house -- t-shirt, shorts and no footwear.

I heard the bedroom door open, I turned toward it and my breath was taken away. Kaitlyn sauntered out wearing only a bright purple lacy bra and matching panties. They provided a great contrast to her pale skin and emphasized her wonderful curves. Her honey-brown hair was braided down the right side of her head and ended in a wide braid that rested on her right shoulder. Paul whistled at her as she entered the space between Paul and me.

Behind Kaitlyn was Joanna in a yellow lacy bra and light-yellow panties. She didn't look nearly as amazing as Kaitlyn, since the bra didn't match her panties. Also, the bra was the better-endowed Kaitlyn's, and, as Joanna's tits didn't fill the cups, it emphasized she was less endowed. Still, the yellow bra looked great against her light olive skin. It was a hot little fashion show the two girls were giving us.

When Joanna caught up to Kaitlyn, she turned and came over to me while Kaitlyn walked toward Paul. I couldn't help checking out Kaitlyn's nicely rounded ass as she made the walk. When Joanna reached me, she sat down on my lap and gave me a kiss. I kissed her back. As we continued kissing, I could hear the sounds of Kaitlyn and Paul kissing in the background. Knowing they could hear Joanna and me kiss made kissing her even hotter than normal.

Kaitlyn called over, "Joanna, do this!" Joanna and I turned to watch. Kaitlyn kissed Paul aggressively, ramming her tongue into his mouth. Kaitlyn moaned loudly as their tongues dueled.

Joanna grabbed my chin, turned my face toward her, and lowered her mouth toward mine. I opened my mouth and happily accepted her tongue. My head spun as we Frenched to the sounds of Kaitlyn and Paul's slurping. Clearly, we were following the plan Joanna and Kaitlyn had come up with this afternoon. I found the mutual make-out session insanely hot -- my cock was rock hard in my shorts. What more did they have planned?

Joanna ended our kiss and turned toward Kaitlyn and Paul. My gaze followed hers. Paul's hands were covering Kaitlyn's tits and squeezing them through her bra. Joanna grabbed my hands and lifted them toward her tits. I cupped them, feeling their weight through the silky lace of Kaitlyn's bra. Joanna resumed kissing me.

It took me a moment to realize what I was doing -- I was squeezing my girlfriend's tits in front of my sister and her boyfriend. The alcohol had me addled. I was enjoying the mutual make-out session, but groping Joanna was a little more than I wanted to do in front of Paul and Kaitlyn. Then I had an idea.

While I kissed Joanna, I pushed her off my lap and guided her to sit down. I broke the kiss to move behind her. Once I was behind her, I moved her hair out of the way and lightly kissed her neck. I slowly kissed down her neck, adding occasional nibbles. I continued across her shoulder. When I reached the bra strap, I looked across the room.

I was surprised to see Kaitlyn looking at me with her mouth open. She was holding Paul's hands in her lap. Kaitlyn said, "That looks wonderful."

Joanna said sultrily, "Oh, it is. Each little kiss gives me a shiver. He's got me so hot."

Kaitlyn turned toward Paul. "Would you do that please?"

A look of horror came across Paul's face. "I don't know how."

Kaitlyn said, "You need to learn." Her tone spoke of frustration with Paul.

Joanna said, "Brandon, kiss the rest of my shoulder."

I resumed kissing along the top of Joanna's shoulder, going extra far before stopping. I looked back over at Kaitlyn and Paul. Joanna said, "Paul, your turn."

Paul said defensively, "I...I...I--"

"Let's trade places, Kaitlyn," Joanna said as she stood up. "Paul, you can watch what Brandon does and learn."

Paul's refusal to try to kiss Kaitlyn's neck and shoulder had ruined the mood. Kaitlyn gave me a nervous smile as she crossed the room. I smiled back and couldn't help but notice how fine she looked in her purple bra and panties. I looked across the room and saw that Joanna was sitting on Paul's lap. I expected Paul to complain, but he seemed resigned to being given a lesson. I didn't want to kiss and nibble on my sister as I had done with Joanna, but I felt like I had to or the mood would stay ruined.

Kaitlyn's braid already had her hair out of the way. I leaned forward and kissed her neck softly. Kaitlyn gasped. I felt like there had been almost a spark of electricity between us. I moved a little and softly kissed again. Another gasp. I moved a bit further down and lightly nibbled. Kaitlyn gasped louder than the first time I had kissed her. This was so fucking hot -- kissing my sister like this in front of her boyfriend and my girlfriend. With every kiss, I expected a shout of "That's enough!" but none came.

I put my hands on Kaitlyn's upper arms to balance myself as I continued to kiss and nibble. Her skin felt good in my hands. I loved Kaitlyn's smell; it was the same shampoo that Joanna had used that evening, but it smelled better on Kaitlyn. Kaitlyn's breath was very ragged. I had given neck nibbles to several girls, and none had reacted this strongly. I had gotten the vibe during our walk that Kaitlyn had the hots for me. The vibe was now much stronger as she was definitely getting off to my kisses. I was amazingly hard. I was glad the chair blocked my hard-on from Joanna's view.
By the time I reached the bra strap, I could smell Kaitlyn's excitement. It made me realize how far over the line was what I had done. I stopped immediately and looked across the room. Joanna had a smile on her face and seemed to be laughing lightly. Paul was holding her lightly and seemed to be talking to her instead of trying to learn what I was doing.

Kaitlyn shot up out of the chair and said loudly to Paul, "Let's go to our bedroom. Now." She held out her hand for Paul. Paul gave her an eager smile as he quickly crossed the room to her. They walked into their bedroom and slammed the door.

I saw movement and turned to see Joanna throw a towel over the couch. The bra was gone, and she quickly slipped off her panties. She lay down on the couch and said, "Eat me, Brandon."

I lay chest-down on the couch in front of Joanna as she spread her legs wide. I worked my tongue up and down her slit, getting her warmed up. Then I heard the first "Oh!" from Kaitlyn. Joanna put her hands on the side of my head and said, "Keep going, Brandon."

I did. I was so horny that I was definitely not going to stop. I was going to fuck Joanna as soon as I made her cum. I was going to give her a pounding tonight.

I danced my tongue up and down beside her clit. Joanna quietly gasped her pleasure. I adjusted the timing of my licks, so she gasped at the same time as Kaitlyn. Kaitlyn's loud moans came clearly through the wall, so it was like I licked Joanna to pleasure Kaitlyn.

Kaitlyn's moans suddenly stopped. I kept on lapping Joanna's pussy, giving her clit special attention. I could hear her deep breaths now.

Thump! Kaitlyn and Paul were fucking now. Thump! Thump! Thump! I wanted to join them. I wanted to fuck Joanna silly. I continued working her clit until she quietly came. I could barely hear her over the sounds of Paul and Kaitlyn fucking.

When Joanna recovered, I climbed above her and guided my cock to her pussy. Normally, I let her guide me in, but tonight I wanted to fuck so bad that I guided myself to her hole. A push, a push, and a third push, and I was buried all the way in. Then I started fucking her hard, pounding her furiously. Now, I could shut out the sound of Kaitlyn and Paul fucking. I was totally focused on slamming into Joanna. I desperately needed to release the sexual tension by cumming in her. I fucked her like a dog fucks a bitch in heat until I exploded into her so hard that I saw stars.

When I was finished, I collapsed onto Joanna. She hugged me tight and laughed lightly in my ear. "So mine and Kaitlyn's plan worked for you?" She laughed some more. I joined in. As no sound of sex was coming from the other room, I could hear her clearly now.

I said, "So what exactly was your plan?"

"That reminds me," she said as she pushed on my chest to get me off of her. I pulled out of her and got off of the couch. She sat up and knocked three times on the wall to Kaitlyn's bedroom. Joanna looked at me and smiled. "That's the signal we fucked. We don't want Kaitlyn storming back out here."

I used a corner of the towel to clean the juices off my cock. Joanna took the towel in one hand and my hand in her other before leading me to our bedroom. I pulled back the covers and we got into bed. We lay on our sides facing each other. I stroked her face and said, "Your plan?"

"Oh, yeah! Well, I told Kaitlyn that last night they were so loud while we were in the middle of foreplay that it took you out of the mood. And I expected the same thing to happen tonight if we didn't do anything different. I suggested they slow down so we'd be the first ones to start having sex. Kaitlyn said she didn't think she could get Paul to slow down enough. So she came up with the idea of us doing foreplay together as a way of getting both couples on the same timeline. Once the foreplay was done, I was to have you eat me and then fuck right away." Joanna gave me a naughty grin. "The noise didn't seem to bother you this time."

"No, it didn't. If anything, it made the sex better for me. And for you?"

"The same. It was like they were cheering us on."

"How far were we supposed to go out there?"

"Kisses and feels. We were supposed to do lots of kissing, but Paul went almost right away for the feels." A concerned look came across her face. "Kaitlyn looked so sad as she watched you give me neck kisses. I hope you didn't mind me having you do the same for her."

"I was fine with it. It was Paul I was worried about. I was afraid he'd get angrily jealous even though I wasn't kissing Kaitlyn on the lips or feeling her up."

"Exactly! I kept telling Paul that while you were kissing Kaitlyn. He wanted to switch back and make out more, but Kaitlyn had other ideas."

I laughed. "She did. It was funny to hear her say 'Now' and to see Paul hustle to obey." We both laughed. I kissed Joanna and my feelings for her swelled. I was tempted to tell her that I loved her. With my other girlfriends, they had said, "I love you" before I was ready to say it. I wasn't certain Joanna was ready to hear me say it, so I didn't.

Instead, I made a circle around Joanna's tit and said, "I think we have time for another round."

"Oh no. Paul is a one-and-done guy and I promised Kaitlyn we wouldn't do a second round."

I arched my eyebrow. "Where was this consideration for the other couple last night?"

Joanna chuckled. "We didn't ask for any consideration then. Kaitlyn did today." Joanna moved close to me, pressing her body against mine as she kissed me sensually. "But I could suck you off if you promise to not make a sound."

* * * *

I didn't sleep well again. This time, I kept waking up to my mind replaying me kissing Kaitlyn. Once again, I felt the texture of her skin on my lips, and I heard her gasps. I was hard all night long.

* * * * Chapter 2 * * * *

To save me some comments and PM's: I've always heard people use "laying out" for sunning. It's apparently an American-only phrase. I know that's grammatically incorrect, but it's what sounds natural to me.

The next day, Monday, was beautiful for water skiing, and we had a great morning session. When Mom or Dad skied, Joanna sat next to me, and Kaitlyn taught her how to be a good lookout.

After lunch, it was nap time for Mom and Dad, which meant the rest of us had to hang out somewhere else for at least an hour. What Kaitlyn and I usually did was lay out on chaise lounges that were halfway between the lake house and the lake. While Mom and Dad cleaned up, Joanna and Kaitlyn went into their bedrooms to change into sunning bikinis. The difference in how busty Joanna and Kaitlyn were was even more obvious when they were in these bikinis. Still, Joanna looked good.

Once we left the lake house, Joanna, Kaitlyn, and I went to the chaise lounges while Paul went over to a hammock in the shade with his tablet. We sprayed sunscreen on each other and then lay down. As I hadn't slept well the last two nights, I was soon fast asleep.

"...to you?" I heard Kaitlyn say quietly.

"Oh, yes. He's done it a couple of times," Joanna replied, also quietly. It was like my subconscious had heard I was being discussed and had woken me up. I continued to act asleep. "The first time he did it was before we fucked for the first time."

Kaitlyn gasped. "You've been fucking?"

Joanna snickered quietly. I thought they were being quiet to not wake me. "For weeks."

"Slut! Why didn't you tell me?"

"Because it was so fun seeing you get bent out of shape. Consider it revenge for all the fashion shows at work."

"Revenge? Did my showing off what lingerie I was wearing bother you?"

"Hell yeah! 'See what expensive lingerie my boyfriend bought me this week.' You know I don't have anything like that. All my underwear I buy on sale at Wal-Mart."

"I should have known, Joanna. I'm sorry. Forgive me?"

"Sure. Forgive me?"

Kaitlyn laughed. "Sure. Even?"

"Even."

There was a pause. I started to drift back to sleep but perked up again when Kaitlyn said, "Did it bother you when Brandon kissed me?"

"No," said Joanna like it was obvious. "It was my suggestion."

"Would you...would you mind if he did it again tonight?"

I had conflicting feelings about kissing and nibbling on my sister. Part of me thought it was wrong, but it was easy to dismiss that as no one else had been upset about me doing it. What I eventually settled on that it was a stupid thing to have done, but I had done stupid things before and would do stupid things again, particularly after a few beers, so there was no point worrying about it.

Joanna asked, "What would Paul think of that?"

"After we had sex last night, he made a joke about me liking my brother kissing on me too much. I told him that he'd better hope that Brandon did it again as he wasn't putting me in the mood for sex."

"Ouch!"

Kaitlyn said in an angry hiss, "Yeah." Then her voice cooled. "Paul's not going to do anything that could result in him being cut off." She sighed. "And I don't want to cut him off as it'll ruin the vacation for everyone else. But I can't count on him to put me in the mood. He's not good with foreplay; he always wants to go straight to sex."

"And Brandon kissing on you certainly put you in the mood." Joanna cackled quietly. "So you want to do tonight like we did last night?"

"Yes."

"Last night was fun. I've never done anything like that before but would enjoy doing it again." Then in a teasing tone, "I'm okay with lending my awesome boyfriend to you for a few minutes."

"Thanks," said Kaitlyn gratefully. After a few moments, she added, "Brandon's been a good boyfriend for you."

"A good mercy boyfriend."

Kaitlyn sighed. "He's not doing anything with you because I've asked him to. He wouldn't make love to you unless he cares for you. He genuinely likes you, Joanna."

"Then why does he always go out with both of us instead of just me?" Because we all have more fun when it's all three of us, and Kaitlyn doesn't mind being a third wheel. "Why didn't he spend more money on me? Take me to nice restaurants? Buy me nice lingerie?" Because I'm a struggling college student working a minimum wage job. "Why did you keep pushing him to make love to me?"

After a long pause, Kaitlyn said in a pained tone, "Brandon doesn't spend lots of money on his girlfriends. He shows his affection in other ways. And you can tell he cares for you in the way he looks at you and pays attention to you. Every girlfriend he's had has enjoyed having him as a lover. I wanted you to have a very positive lovemaking experience." Kaitlyn's tone lightened up. "Am I your best friend or what?"

"You are my best friend," replied Joanna with warmth in her voice. "Have been for years."

The girls moved on to subjects I wasn't interested in. I was angered and frustrated that Joanna still considered me a mercy boyfriend. What did I have to do to convince her that I cared for her? I had been as loving and as affectionate with her as I had been with any other girlfriend. I was suddenly very glad I hadn't said "I love you" last night. She probably would have not returned it, which would have made things very awkward.

* * * *

In the afternoon, we went jet skiing. While Joanna and I were riding a two-person jet ski, she told me about Kaitlyn's request.

I said, "Aren't you bothered by me lightly making out with my sister?"

"No! It was my idea. It was harmless fun. Last night was a lot of harmless but very exciting fun. Kaitlyn and I want to do it again."

I felt it was a stupid thing to do, that we could wind up embarrassed about it. But having a group make-out party twice was no more embarrassing than doing it once. "Okay."

* * * *

After jet skiing, we had a wonderful dinner and an enjoyable post-dinner conversation. When Mom and Dad left, Kaitlyn said, "Chairs like last time" before she and Joanna disappeared into her bedroom. I felt apprehensive. Though I had enjoyed last night, I couldn't shake the feeling it had been wrong. I felt like tonight was going to be more wrong since we were sober, and I knew I was going to be lightly making out with my sister in front of my girlfriend and her boyfriend.

Paul said, "I wonder what they'll wear tonight."

I shrugged. I tried to convince myself that seeing Kaitlyn in a bra and panties was just like seeing her in a bikini, but I failed -- bra and panties felt forbidden, which made seeing her in them very exciting. Then I shook my head; we were going to have some harmless but exciting fun, just like Joanna said. No one would get angry; nothing to feel embarrassed about.

The door opened and I turned to see the girls come into the room. Joanna led this time, dressed in the same bra and panties as last time.

Paul said, "Nice. My favorites."

Once I got a good look at Kaitlyn, I could see why the bra and panties were his favorites. They were a dark blue which looked great against Kaitlyn's skin. The bra had a circle close to Kaitlyn's neck, a circle beneath her breasts and a clear mesh connecting the two circles that had a plunging 'V' in the middle. The mesh lightly held her breasts, and they shifted noticeably as she walked. The mesh had stars scattered across, two of which strategically covered Kaitlyn's nipples. I could see all of her tits except where the stars were. The panties had an inch-wide ribbon of silk across the top with lace beneath. Right in the middle, the lace was missing and instead there was a deep V that must end just above her pussy. Any doubts about whether Kaitlyn shaved were gone. She looked sexy as hell in her outfit. Kaitlyn knew how to strut her stuff, and she oozed sexuality as she sashayed.

When the girls reached the space between Paul and me, they again stopped for a moment before Joanna walked sultrily toward me as Kaitlyn did the same toward Paul. I smiled at Joanna. She did look sexy as she walked toward me, even if she was the moon to Kaitlyn's sun.

I was ready with a kiss when Joanna slipped into my lap. After our first kiss, Joanna moved forward and whispered into my ear, "Lots of kisses tonight" before kissing along my jawline back to my mouth.

I was happy to comply. I loved kissing her. She had soft, full lips that felt great against mine. After a few kisses, I heard Kaitlyn say, "Not yet, Paul". I tilted my head enough so I could look over and I saw Kaitlyn pulling Paul's hands down from her tits. I sympathized with Paul -- how could Kaitlyn expect him to keep his hands off her tits when she was wearing that bra?

I pushed Kaitlyn and Paul out of my mind and concentrated on kissing Joanna. We kept kissing on the lips, but in slightly different ways that made the kisses hotter and hotter. Sometimes she'd grab my bottom lip between her lips as I pulled away. Sometimes I did the same to her. Sometimes I'd run my tongue over her lip as soon as the kiss ended. The whole time we were kissing, I kept thinking of Kaitlyn and Paul doing the same thing on the other side of the room. I heard another, "Not yet, Paul", but I was so into kissing Joanna that I didn't look this time. She was more aggressive in her kisses tonight than normal, like kissing in front of Kaitlyn and Paul was getting her extra excited.

I heard Kaitlyn say, "Stay here and, in a little bit, we'll go to our bedroom." I stopped kissing Joanna; she got up and walked toward Paul. I got up too, making room for Kaitlyn to sit down. As soon as she was seated, I kissed her neck. She let out a small gasp and grabbed my hands, pulling them to the bottom of her rib cage. As I did the kissing and nibbling, I moved my hands slowly in circles. To my surprise, Kaitlyn reacted more strongly tonight than she had last night, getting much more into the kisses and nibbles.

While I was kissing along Kaitlyn's shoulder, I looked across the room. Joanna was seated on Paul's lap, and Paul was running his hands up her arms to her exposed shoulders. Joanna gave me a smile. Paul looked bored. I kept kissing along Kaitlyn's shoulder. This time, I kept kissing once I crossed her bra strap and kissed all the way to the end of her shoulder. When I was done, I stood up.

Joanna was the one who got up immediately this time. She took a few sensual steps toward me with a big smile on her face before reaching behind her and undoing her bra. She kept her eyes on my face as she peeled the bra off her and tossed it aside. When she reached us, Kaitlyn got out of the chair and left my vision as I stared at Joanna in amazement. Joanna rotated the chair ninety degrees and ordered, "Sit down." I sat down in the chair. Joanna immediately straddled my lap. She grabbed my head in both hands and said loudly, "Suck it!" as she guided my mouth to her tit. Her nipple was already hard before it entered my mouth. I sucked gently as I grabbed Joanna's ass firmly in my hands. This was so fucking insane. Last night had been crazy, but this was even crazier.

I happily sucked on Joanna's tit while squeezing her ass until she pushed back on my head. She guided to me her other tit, and I greedily sucked on it too. Last night had been hot, but tonight was far hotter. I wondered -- had tit-sucking been a part of the plan? Something they had decided on while they were in the bedroom changing into bras and panties? Joanna had walked toward me topless with total assurance.

Joanna pushed back on my head and again I let go of her tit. She guided my mouth back to her first tit, and at the same time, shifted toward Paul and Kaitlyn so I could see them easily. Kaitlyn's bra was off, and Paul was furiously sucking on the right tit, which was closest to us. I was shocked to see Kaitlyn was red-faced with anger. What was she so angry about? Were the guys frolicking on second base in front of the other couple too much for her? Was Paul doing something that made her angry?

Joanna said loud enough for Paul and Kaitlyn to hear, "Paul said it was boring to watch you kiss on Kaitlyn. He asked me to do something he'd find exciting. Do you find this exciting, Paul?" Paul nodded his head vigorously while continuing to suck on Kaitlyn's tit. Joanna laughed. She ran her hands through my hair and said quietly to me, "I hope you find this exciting. I find it very exciting."

Joanna twisted my head gently, so I was looking at Paul and Kaitlyn again. Anger was gone from Kaitlyn's face and it was replaced by something I couldn't place, but it wasn't pleasure. Paul was sucking on the left tit now, giving me an unobstructed side view of the right one. I had known my sister was well-endowed, but it still shocked me to see exactly how well-endowed she was, how proudly her tit stood out on her chest. Her areola was a light brown and looked larger than average in size. Her nipple was completely erect.

Joanna said quietly to me, "I think Kaitlyn wants you to look at her tits. I bet it's making her very excited. I'm sure she's jealous that you're sucking on my tits instead of hers." Joanna added gleefully, "I love making her jealous."

After I had suckled on Joanna for a bit, I couldn't resist looking back over at Kaitlyn and Paul. Paul was mouthing her left tit again while Kaitlyn was looking at me. We locked gazes. As we continued to stare at each other, I saw out of the corner of my eye Paul bringing up his hand to Kaitlyn's near tit. He started playing with the nipple, running his finger around it and tweaking it. It was like he was showing it off to me. The whole time, Kaitlyn moaned as lust filled her face.

Joanna said loudly, "What are you going to do tonight to your naughty girl, Brandon? Are you going to give me a hard fucking?" Hell yes! An odd look came over Kaitlyn's face. "How are you going to fuck me? Doggie-style? Doggie-style on the couch?" I didn't care where or how we fucked so long as we fucked. I had never wanted to fuck so badly in all my life. I couldn't wait to get my cock in Joanna's pussy. The odd look on Kaitlyn's face became one of longing. "How about you throw me over the arm of the couch and take me there? Would you like to do that?" Kaitlyn appeared to whimper, like she wanted me to throw her instead of Joanna over the arm of the couch and fuck her.
Kaitlyn pulled Paul off her tit. She jumped off the chair, so she was facing Joanna and me, giving me a good look at her tits. Joanna got up and faced Paul and Kaitlyn. Kaitlyn grabbed Paul's hand as she said, "Let's go!" and pulled him toward the bedroom. Paul took a good look at Joanna's tits before running off. We watched them cross the room to the bedroom and slam the door.

Once the door was closed, Joanna pulled off her panties. She walked quickly toward the couch and lay face down over the arm. "Fuck me, Brandon."

I was right behind her. I pulled off my shorts and quickly guided my cock into her hole. As she was bent way forward over the couch arm, her ass was way high in the air. As I made my initial push, I discovered Joanna was already very wet. I pulled back and then pushed my cock all the way in.

"Oh yes!" hissed Joanna. After I pulled back again, I slammed into her. "That's it! Fuck your naughty girl." I did, my body slapping loudly against hers each time I thrust into her.

"Oh, yes. I've been so naughty," Joanna mumbled into the couch.

"Does my naughty girl want a good, hard fucking?"

"Oh, yeah! Fuck me, Brandon. I want it bad."

I gave Joanna her wish, fucking her as hard as I could. The first time I had called her naughty, it had been just another way of teasing her, but I had known then that she liked being called naughty. Tonight, she had taken naughty to a whole new level, and I could tell she had found it very exciting. It had excited all four of us. I wasn't certain what I thought about Joanna enjoying being naughty, but I was too focused on fucking her silly to give it much thought.

It wasn't long before I could feel myself cumming. "Here it comes, my naughty girl."

"Give it to me. Give it to your naughty girl."

I pulled back once more before slamming into Joanna, firing a massive load deep into her pussy. I shuddered with pleasure as all of the sexual tension that had built during our joint make-out session was finally released.

It took me a bit to catch my breath. I was sweaty all over. I savored our fuck for a while before saying, "That was awesome, Joanna."

Joanna looked back at me and gave me a big smile. "I loved it too."

Joanna reached over to a towel on the coffee table and did her best to throw it to me. I pulled out and used the towel to absorb our juices. Joanna moved off the couch while holding the towel and pointed for me to sit down on the couch. I had a good idea of what she wanted, so I sat down on the edge. Joanna lay down with her head in my lap. She let the towel drop, exposing her pussy. "Now make me cum."

As I reached my hand toward her pussy, the thumps of Paul and Kaitlyn fucking started, with Kaitlyn moaning in time.

Joanna said, "Make me cum with your sister."

I slid my finger between her pussy lips and rubbed against her clit. Joanna hissed. I rubbed some more, and she was panting. She soon matched her pants with Kaitlyn's moans. I again had the feeling that I was making Kaitlyn moan as I fingered Joanna.

Joanna came before they finished fucking. After she caught her breath, she said, "Let's fuck in our bedroom."

We fucked with Joanna on top. The whole time we fucked, she'd occasionally mutter, "Fuck your naughty girl."

* * *

The next morning, Tuesday, I was awakened by Joanna amorously snuggling on me. Based upon the amount of light in the room, I'd guess we had fifteen to thirty minutes before Mom would knock on our door. Joanna and I couldn't have sex, but we could quietly make out. I tilted her head up with my hand and kissed her. The kiss morphed into a long, smoldering one.

Joanna said, "I had a great time last night. Did you?"

"Yes. It was crazy, but it was also crazy hot. You were incredible, my naughty girl."

Joanna smiled. "So you're not angry at me for being naughty?"

"No."

Joanna moved in for another kiss, which turned into another long, smoldering one. Joanna stroked my morning wood, making it even harder.

I said, "This is making me want to pee."

Joanna snorted. "Then go pee." She added sultrily, "I'll be lying naked on your bed when you get back." Joanna wore only panties when she slept with me, which meant she'd strip them off while I was gone.

I pulled on some shorts, went to the bathroom and came back. During my walk, I decided to discuss something with Joanna that was bothering me.

When I got back in the bedroom, the covers on the bed were thrown back and Joanna was lying naked on her back on a t-shirt. She wiggled her finger at me in a come here gesture. As I slid into bed next to her, I said, "Let's talk for a bit."

Joanna stretched sensuously like a cat and said, "Okay". She grabbed my hand and pulled it toward her pussy. "Talk."

"Do you think we crossed a line last night we shouldn't have? It was one thing for us to kiss and grope in front of each other but having the guys suck on tits is quite another." Particularly as I had watched my own sister getting her tits sucked.

Joanna maneuvered my index finger between her pussy lips and pushed up against it as she said, "It was a lot of fun, no one got angry or jealous, and all of us were hot and horny when we were done. I want to do it more. I think Paul and Kaitlyn want to do it more."

"Paul got to see your tits." I wasn't exactly jealous, but I would have preferred to keep Joanna's charms to myself.

"That was the point. He wanted me to make things more exciting, and I did by letting him watch us. Was it exciting for you to see Kaitlyn's tits?"

I struggled for an answer before getting distracted by Joanna moving her hips up and down, causing my finger to slide between her pussy lips. "Joanna," I said disapprovingly. She knew the rule about no-sex while my parents were around.

Joanna gave me a sexy smile. "I'll be quiet. I'm always quiet." She chuckled. "Unlike your sister."

I gave in. I lightly pressed down with my finger, stimulating the area around Joanna's clit.

Joanna said sultrily, "Was it exciting for you to see Kaitlyn's tits?"

Again, I said disapprovingly, "Joanna."

"Brandon, I won't judge you for your answer. Tonight, I want to do something like we did last night, and I want feedback as to what worked for you. Was it exciting for you to see Kaitlyn's tits?"

"Yes." I had loved seeing Kaitlyn's tits. They were the most beautiful ones I had ever seen -- just the right shape and size; wonderful skin; her areola were the right shape and color; the way they sat proudly on her chest. I was uncomfortable with how much I had enjoyed seeing them.

Joanna asked, "Did you mind my sharing you with Kaitlyn?"

"No." I had enjoyed it.

Joanna was pushing hard against my finger now and her breath was getting ragged. She said, "Good. I think my sharing makes her even more jealous." She went back to breathing deeply. I worked her clit as she liked, pushing her closer and closer. The only sound was Joanna's breaths -- she didn't moan or say anything. I surveyed Joanna as I pushed her closer to the edge; she was a beautiful, fun, sexy, naughty girl who knew how to make sex incredibly hot, and I was lucky to have her as my girlfriend. I moved my finger faster and faster, pushing her higher and higher. After a few minutes, Joanna clamped down on my hand with her thighs as she quietly came. Seeing her cum filled me with happiness.

Joanna pulled me to her. As she kissed me, she wrapped her hand around my dick. We kissed quietly yet passionately as she stroked me. She broke off the kisses and shifted to take my cock into her mouth when there was a knock on the door. Joanna gave my cock a quick kiss on its head and said, "I'll make it up to you later."

* * * *

Over breakfast, Kaitlyn suggested we go jet skiing this morning, and everyone else agreed. The cabin had two of the small one-person jet skis that you stood up on and two of the larger, two-person jet skis that you sat down on. After breakfast, Mom and Dad led the way down to the boat house where the jet skis were stored. Kaitlyn and I were right behind them, and the four of us were talking about what parts of the lake to avoid. When we got to the boat house, I turned and saw that Joanna and Paul were well behind us. They were engrossed in conversation as they slowly walked toward us. I had a bad feeling about them talking that way.

Kaitlyn said to me, "What do you want to start on?" I had turned to face Kaitlyn. "A small one or a big one? I think we should rotate the different jet skis among us, so everybody gets a turn driving each type."

I didn't answer as I was distracted by Kaitlyn's bikini top -- it was kind of a cross between the traditional bikini top and a crop top shirt. There was something about how Kaitlyn's tits pushed out their covering that emphasized their size. At the top center of her top was a peek-a-boo hole which gave me an enticing view of the top of Kaitlyn's tits.

Kaitlyn said, "What do you think of my top? It's new. I love how it feels and how it holds the girls in place." Kaitlyn shook her tits at me. It took every bit of restraint to keep my jaw from hitting the ground. "See? They barely moved."

I stood stunned for I don't know how long. I snapped out of it when Dad drove one of the big jet skis around to where we were and yelled, "Come on, kids. Let's go!"

* * * *

We spent the morning jet skiing, and all had a blast. We kept somewhat together, the two couples on the big jet skis regularly racing against each other, and the two people on the small jet skis doing likewise.

At one point, Joanna was driving a big jet ski while I held on to her. I asked her, "What were you and Paul talking about on the way to the boat house?"

"He thanked me for making last night exciting for him. And he asked me to arrange with Kaitlyn to do something similar tonight."

She seemed defensive, which annoyed me. Finally, I shook it off; I was making a mountain out of a molehill.

* * * *

After lunch, Kaitlyn, Joanna and I went to the chaise lounges while Paul headed to the hammock. The girls were wearing tiny bikinis, the same ones they had been wearing yesterday. Seeing them wearing so little was affecting me more today. After I had put sunscreen on Joanna's back, Kaitlyn said, "Would you please put sunscreen on mine? Paul's busy."

"I'll spray it on you."

"No one brought the spray," said Kaitlyn. "All we've got is lotion."

I had never applied sunscreen lotion to Kaitlyn before. I looked up at the hammock, and Paul was completely focused on his tablet. I glanced at Joanna, and she was already lying down with her eyes closed. Why not?

I squirted some of the sunscreen on to my hands and applied it to Kaitlyn's back. She pressed lightly back into my hands as I did so. Her skin felt so good and looked flawless. I was glad no one was looking at me because I had a massive hard-on. I applied the sunscreen as quickly as I could and when I was done, Kaitlyn said thanks. I arranged myself the best I could and lay down next to them.

The three of us chatted for a little bit about how much fun the morning had been, and then Kaitlyn dropped a bombshell -- "I'm thinking of breaking up with Paul when the week's over."

"You are?" I said. I discreetly looked up at Paul. There was no sign he had heard his name.

"Yeah. He's a great guy and I've loved dating him, but he drives me crazy at times. Last night was kind of the last straw."

My emotions churned in confusion. I couldn't tell if I was disappointed, sad, or happy that Kaitlyn was so close to breaking up. She hadn't announced she was definitely breaking up with Paul, so I interpreted her comment as a request for us to try to talk her out of it.

Joanna said, "Are you talking about him going for your tits while you were kissing?"

"No, though I was annoyed that I had to tell him twice to stop. This is probably TMI, but Paul is unimaginative about sex. When we're alone, he wants me to go down on him, then he does oral on me, followed by us fucking. He's good at oral -- he always makes me cum -- and he's a good fuck, but I'm tired of it being always the same. Last night, I wanted to skip the blowjob and go straight to him eating me out. I was ready to cum right away and fuck. But no -- I had to blow him first."

This was TMI, and I was a little shocked that Kaitlyn would graphically describe her sex life with Paul. But it was obviously bothering her.

Kaitlyn continued, "Paul is so different than any other guy I've dated. I've never had a guy shower me with gifts. And I loved it at first. I loved all the sexy clothes he bought me; I loved going to the expensive restaurants. But now monotony has set in. It's the same kind of gifts and the same kind of sex. My god, my closet is full of sexy dresses and expensive lingerie! I actually prefer it now when he sends a card." Kaitlyn was in the middle and turned toward Joanna. "I think that's why I put on the fashion shows at work; to get me excited about the latest lingerie Paul had sent me. I'm sorry it offended you."

"Forget it. I've already forgiven you."

"You're the best, Joanna," said Kaitlyn. "But back to Paul -- he's also too eager to have sex when we're alone. I kiss him and he starts pawing at my tits, just like he did last night. It was nice that I got him to slow down for a while. Last night's foreplay really had me fired up and I was so ready to fuck when we went to our bedroom." She paused for a moment. Picturing my sister being fired up to fuck made my head spin. "By the way, Paul wants the couch tonight." Joanna lightly laughed. "He somehow seems to have gotten the idea of fucking me over the arm of the couch." Joanna laughed some more.

The three of us were quiet for a little bit. I tried to process how I felt about Kaitlyn breaking up with Paul, but I kept coming back to Kaitlyn being fired up from last night's foreplay. A big part of the foreplay was me kissing and nibbling on her neck, and us locking eyes during the tit sucking. Was that what had gotten her so fired up? Was she trying to tell Joanna or me that her I-don't-know-what-to-call-it with me had gotten her so hot? The possibilities made my head swim.

Joanna finally said, "What if Paul learned to slow down? Would that make a difference?"

Kaitlyn shrugged. "Possibly. If he learned to slow down, I might be willing to keep going. And if he learned to be more creative. As I said, he's a considerate, caring guy. Why? Do you have an idea?"

"Somewhat. But first -- no bra and panties tonight. I'm tired of wearing a bra that is too big for me and makes my tits look tiny." Joanna turned to me. "Brandon, go jet ski. Kaitlyn and I need to have a serious girl talk."

* * * *

After lunch, we went skiing. When we got on the ski boat, Kaitlyn surprised me by sitting down next to me, forcing Joanna to sit next to Paul. It was far easier with all the noise to talk to the person next to you, so I talked with Kaitlyn. She was in a great mood, smiling a lot and laughing easily. Her "girl talk" with Joanna must have gone well. I kept an eye on Joanna and Paul while they talked. Paul was nodding his head a lot and occasionally would have a huge grin. I guessed their conversation was a part of whatever plan Joanna and Kaitlyn had come up with.

At one point, I asked Kaitlyn, "So what do you and Joanna have planned for tonight?"

She gave me a nervous smile. "Joanna wants it to be a surprise. It'll be fun. Go along with it, please?"

"What if I don't?"

"It depends on Paul. He's looking forward to having another night like last night. He told me so on the way to the ski boat. I don't know how he'll handle the disappointment of just being with me. Nothing could happen. Literally nothing could happen in our bedroom." The way Kaitlyn said it, I pictured them spending the night on opposite sides of the room, staring icily at each other. "Or we could have a big fight and break up."

"Are you that close to breaking up?"

"We were the first night here. Since we started having our little parties, we've pulled back from that brink."

I was torn. Last night, we had moved beyond what I was comfortable with, and I felt like tonight we'd keep moving past that line. I could say no, take Joanna into our bedroom, and everything might turn out fine. Or Kaitlyn and Paul could have a big fight, and we'd have a very ugly situation on all our hands. I decided it wasn't worth the risk. "Okay. I'll go along."

* * * *

When we got back to the lake house, Dad and I started working on dinner while Paul lolled on the couch with his tablet. As Dad and I made dinner, I noticed that, while Mom was showering, the girls went to Kaitlyn's bedroom and closed the door.

When Mom and Dad left, the girls disappeared into Kaitlyn's bedroom as I expected. Paul and I moved our chairs into their usual spots. Paul rubbed his hands in anticipation, so he must have had some idea of what was coming.

The door opened, and Paul and I turned to look at the girls. They were wearing terry cloth short-shorts and t-shirts they had cut off so we could see the bottom inch of their tits. As they walked, I was mesmerized by the sight of Kaitlyn's tits as they wobbled. Her t-shirt was thin so I could easily make out her nipple pressing against the material.

Kaitlyn was in the lead, and she stopped in the usual spot. When Joanna caught up to her, I was stunned to see Kaitlyn turn toward me. My eyes were wide in disbelief as she crossed the distance to me. She straddled my lap on the chair just like Joanna had always done. She said softly, "Joanna is going to teach Paul to keep his hands off her tits," and then her lips were descending toward mine. They seemed to move in slow motion for the last few inches. Did I want to kiss my sister? Should I stop her? I was frozen in place as her lips brushed mine. Electricity shot through me like I had been zapped by ten thousand volts. My heart was pounding in my chest. Kaitlyn had kissed me! The next kiss was a solid plant on my lips. Her lips felt so soft on mine. The kiss, combined with her sexy outfit, was intoxicating. I offered no resistance as Kaitlyn kissed me again and again.

I started kissing back. Passion rose within me as the surprise wore off, and I got into kissing Kaitlyn. She was beautiful, fun, sexy and smart. I had never thought about kissing her, but now I realized how much I had wanted to. Our kisses got steadily longer and more playful, with our lips grabbing and pulling. My hands moved up and down her smooth back, caressing her firm muscles. I stuck out my tongue and licked her lip. Kaitlyn pulled back and shook her head no before coming forward for another kiss. I took it that the rule for this part was no tongue in our kisses.

I don't know how long we kissed, but it seemed like an eternity. Each kiss was an experience I savored. As soon as a kiss ended, I replayed it over in my mind in the fraction of the second before the next kiss started.

I heard Joanna say, "You've been a good boy," and Kaitlyn stopped kissing me. I felt dazed, like the experience of kissing my sister was more than I could process. Kaitlyn smiled at me, turned and walked over to Paul, passing Joanna on the way.

As soon as Joanna was in my lap, she kissed me hard and pushed her tongue into my mouth. I quickly responded. Kissing Joanna wasn't new and exciting-because-it's-taboo like kissing Kaitlyn was, but Joanna made it hot by kissing me with such passion. My heart continued to pound. Joanna grabbed my hands which were on her back like they had been with Kaitlyn and she pushed them down. I dropped them down to her ass and squeezed; Joanna was wearing no panties. Joanna responded by rubbing her tits against my chest. We kissed in lots of different ways, sometimes with tongue and sometimes not but always frantically, like our kisses couldn't fully express our excitement for each other.
Eventually, I heard Kaitlyn say, "Switch back." Joanna hopped off my lap while continuing our last French kiss as she slowly pulled away. During our last kiss, I heard Kaitlyn say, "You were a very good boy." When Joanna broke off our last kiss, she headed toward Paul, and Kaitlyn was almost back to me. She said, "Neck nibbles."

I got up, and Kaitlyn sat down. I kissed her neck lightly, and she moaned. Again, she really got into my kisses and nibbles, moving to give me better access and then melting and moaning as I used my mouth on her skin. I felt like our kissing earlier had her more fired up for this than she had been last night. As I kissed and nibbled, I struggled with how much Kaitlyn and I were enjoying this; I knew we shouldn't be enjoying this as much as we were, but everyone else was fine with it so I didn't see any reason to hold back. But the internal struggle left me feeling dazed.

I kissed and nibbled my way down Kaitlyn's neck and toward her shoulder. I had to pull the shirt collar to the side to access her shoulder. I was so damn horny and couldn't wait to fuck Joanna silly. When I had kissed all of Kaitlyn's shoulder that I could reach, I looked over at Paul and Joanna. Joanna was lolled against Paul with her head resting on his shoulder. Paul's hands were lightly stroking her stomach. I realized then that with the crop top, Paul could have easily felt Joanna's tits while I was busy with Kaitlyn.

Joanna jumped up and held out her hand. "Come on, Brandon. They've got the couch tonight."

Sex with Joanna was incredibly hot as both of us were so fired up. It was like a wrestling match except we were co-joined in the middle. When we were done, I was physically and emotionally spent.

* * * * Chapter 3 * * * *

Wednesday, Joanna woke me by snuggling on me. When she saw I was awake, she gave me a kiss. "Had fun last night?"

"Mostly," I said with little enthusiasm. First thing in the morning was when I felt the worst about our evening activities. Joanna obviously didn't share my regrets or concerns. But then again, she wasn't making out with a sibling.

Joanna smiled. "I had fun kissing Paul. I hope that doesn't bother you. It wasn't anything serious to me, just some naughty fun. And it was what Kaitlyn asked me to do to try to improve things with Paul."

"How is you kissing Paul going to improve things between her and him?" The four us of switching for kisses wasn't sitting well in my stomach.

"Kaitlyn can't get him to listen to her about slowing down, but he listened to me. So now hopefully he'll go more slowly with Kaitlyn."

I didn't want it to make sense, but it did.

Joanna waited, as if she was expecting me to make a similar remark about kissing Kaitlyn. When I didn't make one, she said, "Look, I'm not going to judge you or Kaitlyn for what you did last night. I wouldn't have felt good about kissing Paul if you hadn't been kissing Kaitlyn. I would have felt like I was cheating on you. If it's not even, it's not fair." Joanna's face lightened. "An important part of my friendship with Kaitlyn is that we don't judge each other. She's okay with whatever I do; and I'm okay with whatever she does, including kissing you. And you did get her worked up with your kisses, which was the goal of last night." Joanna chuckled. "I could tell she didn't want to stop kissing you. But she had to because you're mine, all mine." Joanna chuckled some more.

Kaitlyn had been so eager to kiss me. And it had been so damn good kissing her...

I asked, "You're not going to tell anyone I kissed Kaitlyn, are you?"

Joanna snorted. "Of course not. I'd do nothing to hurt Kaitlyn. And when I talked about the plan with Paul on the boat yesterday, I made him promise to never tell anyone. Did you enjoy it?"

"What?"

"Kissing Kaitlyn, you idiot!" Joanna said with a smirk.

I didn't want to tell her yes, but I didn't want to lie. I went with downplaying the truth. "It was enjoyable. I would have never done it on my own, but I didn't mind it when she kissed me."

"The whole evening was enjoyable. I'm looking forward to doing it again tonight."

* * * *

We did jet skis after breakfast. At one point, Kaitlyn suggested she ride with me and Joanna ride with Paul. Once we were away from the others, Kaitlyn said, "Thanks for going along with everything last night. I think it was a good lesson for Paul. He was more flexible about having sex last night than he usually is. I hope you aren't upset about Joanna kissing Paul."

"I'm not. I'm not comfortable with it, but I understand why we did it. Joanna enjoyed it. She views it as innocent fun."

"Good." Kaitlyn gave me a squeeze. "Stop for a minute. I want to get wet."

I brought the jet ski to a stop. Kaitlyn jumped into the water and swam around for a minute. She then came over to the jet ski, put her hand on it, and looked up at me. I asked her, "What does Paul think of what you and I did last night?"

"He didn't say. He probably thinks it was disgusting and weird." Understandably so. "Was he bothered by it? I don't know. He's a very simple guy; as long as he can play his game and have sex, he's happy. I can tell he's enjoyed the fashion shows, and that he liked kissing Joanna. And we had awesome sex last night, which made him very happy. Did you and Joanna have awesome sex?"

I blushed a little. "We did."

"Great! Paul was probably too focused last night on having a good time with Joanna to have a reaction to you and me. And I don't think he'll say anything negative for fear that all of his fun at night will come to an end."

All of that made sense. Kaitlyn then did something I've seen girls do countless times - pull her top out for whatever reason. This time when she did it, she gave me a brief view of her tits. She was looking at her top when she did it, so she may not have realized I could see her tits. Or maybe she didn't think my seeing her tits briefly was a big deal after I had gotten a good look at them the other night. Part of me felt that I shouldn't look, but I couldn't resist looking as she had sensational tits. Her show was another one of the things that shouldn't happen that whose happening made my head spin.

I asked, "Are you thinking better about Paul after last night?"

"Too early to say. Paul is the first boyfriend that I've accepted as he is. Despite his flaws, he's a good boyfriend. But he's not a great boyfriend. If I knew of a guy who I thought would make a great boyfriend, I'd dump Paul in a heartbeat. What I don't want to do is dump Paul and then date a guy that I can manipulate without really trying."

"You're that manipulative?"

"I don't know if I'm so manipulative or if I'm so good at it." Kaitlyn's face turned very serious. "I've learned the hard way that you can't trick someone into being a better person, or into making the right life decision. I can't change people; they'll only change when they want to change. I've felt much better about myself since I started dating Paul because I haven't tried to change him. And I was open and honest with you and Joanna about why I wanted you two to date."

"Manipulating us into dating would have been bad."

"You say that, and I see how much happier Joanna is now that she's dating you. I took a big risk in asking you to date her."

Was she saying that manipulating was a good thing? "We would have figured out eventually that you had manipulated us, we would have been pissed at you and it would have hurt our relationship."

"And your relationship is great without me doing any manipulation?" That smarted. I opened my mouth to rebut her comment, but I couldn't think of one. Kaitlyn then said, "I used to think in too many cases that the ends justified the means. Or maybe I used to enjoy manipulating people more than I do now. I don't like it when I do it now."

"So don't."

Kaitlyn laughed. "Good suggestion. I try. Then things don't happen the way I want them to happen. Look at you and Joanna. Joanna won't accept that you're dating her because you want to. She thinks you're only doing it because of me. That drives me crazy as I think you're a great couple. It's the type of situation where I'm tempted to accept the ends justifying the means." Again, I had the feeling that she was a lot deeper than most other girls. She shook her head. "I wish now I could have had her come over when you were home, had you two hit it off, and then you decided to go out on your own."

"But that wouldn't have happened. I wouldn't have dated Joanna if you hadn't asked me to."

"Yeah. It's just that...I've come to realize that Joanna needs to make her own choices. Even if I'm totally certain about what she should do next, I need to let her come up with the idea on her own. Hopefully, at some point, she'll choose to let herself fall in love with you."

Another painful topic. "I hope so, too." But I had no idea when that would happen.

"Thanks for not judging me. I think there aren't many guys a girl could tell that she's very manipulative, and they'd not judge her for it. I haven't told Paul about my habit of manipulating."

I shrugged. "If I got angry at you, how could I date your friends?" Kaitlyn giggled. "Seriously, I've been hanging out with two non-judgmental women this summer, so I'm learning to be non-judgmental."

Kaitlyn climbed out of the water. When she got back up, I asked, "Don't you think it's weird for me to be getting you excited every night?"

Kaitlyn shook her head sadly, "I think it says more about how bad things have gotten between Paul and me that I find innocent kisses from you much more exciting than what foreplay he does." Kaitlyn grinned. "We're all having fun. For whatever reason, it's like we've all gotten blank checks, during that one hour, to have fun like we'll never have anywhere else. I'm never going to kiss you at home. Joanna is never going to kiss Paul after this week. I like the freedom we've been having, and I'm looking forward to more freedom tonight."

* * * *

When Kaitlyn and I finally got back to the rest of the group, Mom and Dad gave us disapproving looks for being gone so long. We were supposed to swap jet skis every twenty minutes or so, and Kaitlyn and I had delayed this swap. Paul and I hopped on the small jet skis and raced each other. We played for a while longer before heading back for lunch. The rest of the day was pleasant and completely normal. The only slightly unusual thing was that after dinner Paul volunteered to do all the laundry, and Kaitlyn asked Joanna to help him to make sure "he washes the girly stuff correctly".

I found the normality of it all disturbing. I had kissed my sister last night. I was going to kiss her again tonight. I felt like people should be acting differently because of it, but no one was.

As soon as Mom and Dad left, the girls went into Kaitlyn's bedroom. Paul and I got the chairs into position and sat down. I asked, "Did you have fun today?"

"I did". Paul winked at me. "And I'm hoping for even more fun tonight."

The door to the bedroom opened, and the girls came out again in crop tops and terry cloth shorts. Everything was basically a repeat of the night before - Kaitlyn came to me for kisses, Joanna came for French kisses, and Kaitlyn came back for neck nibbles. When I reached my usual stopping point, I looked up and saw Joanna lolling against Paul again. There was something about their familiarity that bothered me.

Paul called out, "Keep going!" and laughed. What an ass! I couldn't believe he wanted me to continue to make out with his girlfriend.

Then I had an idea - I'd get back at Paul by driving his girlfriend crazy. Suddenly, I wanted Kaitlyn to dump him in the worst way. I'd get Kaitlyn super-excited so the next time she was with the big doofus, she'd be so frustrated with his pathetic foreplay that she'd kick him to the curb.

I moved back up to Kaitlyn's neck and started kissing upwards from about halfway up. When I got close to her ear, I gently nibbled on her earlobe.

"Oh my God!" gasped Kaitlyn.

I inwardly smiled. I nibbled a few more times on her earlobe while I listened to her breathing quicken.

Kaitlyn gushed, "You're giving me goose bumps!" She sounded shocked at how much I was exciting her.

I blew softly in her ear and got another gasp. I went back for another nibble when I heard Paul say to me, "Check out her nipple!"

I looked down, and it was easy to see through Kaitlyn's thin crop top that her right nipple was completely erect. There was something about clearly seeing the outline of her nipple and that it was so stimulated because of me that greatly excited me. It looked so perfect, so inviting...

Paul said to me, "Go ahead and feel it."

I looked over and Paul had his hands on Joanna's tits under her crop top. Part of me was instantly jealous, but then it was like my hands moved on their own accord to slip under Kaitlyn's crop top. I gently cupped her tits and...

...I completely forget about everything in the world except Kaitlyn's tits. They felt perfect in my hands - just the right shape, the right size, and the right amount of heft. I savored their perfect-skin smoothness as my hands moved over them. I heard Kaitlyn suck in her breath. Initially, her left nipple wasn't fully erect like the right, but I quickly got it erect by tweaking it with my fingers. I felt like a kid in a candy store - that wasn't quite right, but it was close; I had the feeling that I had free reign to hold and squeeze something that I had deeply wanted to touch but had thought I never would. I had admired my sister's tits for years, and now I had my hands on them with her approval, and apparently the approval of her boyfriend and my girlfriend.

Kaitlyn turned and looked up at me, an inviting look on her face. I felt like I was falling as my lips moved slowly toward her. Down, down, down I slowly went until my lips touched hers.

My lips had barely touched hers before Kaitlyn pushed her tongue into my mouth. I opened my mouth wide and let her tongue in as I continued to squeeze her tits. This was so hot, so crazy; to be Frenching my sister like this. And she wanted it; she totally wanted me doing this - her tongue was dueling mine fiercely; she was pressing her tits into my hands; she was moaning every time I squeezed or tweaked. I was totally inflamed with lust, and I needed to fuck. I needed to fuck right now.

I broke off the kiss and looked over at Joanna and Paul. They were Frenching and groping like Kaitlyn and I were. Joanna must have noticed me looking at them as she broke off their kiss and stood up. She grabbed her crop top, pulled it over her head and threw it aside. She grinned mightily as she walked toward me while swaying her hips sexily. When she reached me, she took my hand and pulled me toward the couch. When we got to the couch, she pushed me to lie down the length of the couch on my back. She grabbed her shorts and slowly pulled them down while wiggling her ass. It was a crazy sex show. I stared at her neatly trimmed, dark brown bush while she slowly pushed her shorts to the floor.

Joanna stepped out of the shorts and climbed on to couch on her knees. She straddled my face and commanded, "Eat me." I stuck my tongue upward and parted her pussy lips. Her pussy was full of moisture - the wettest I could remember her being. I ran my tongue up and down the full length of her pussy, exploring how wet she was. I liked Joanna's taste and slurped up her juices as quickly as I could. I brought my hands up to cup Joanna's ass to help her balance. I'd done oral sex on Joanna many times, but this was the first time she had ever sat on my face like this.

As I slurped, I suddenly heard Kaitlyn's voice say, "Fuck, yeah!" Based on the loudness, she was close by - definitely not in her bedroom. With Joanna's legs pressed lightly against my ears, it was hard to place where the sound had come from. I gave Joanna a couple more licks before I heard Kaitlyn say, "That's it! God, yes. Lick me, Paul! I'm so damn wet!"

I pictured this part of the living room - the coffee table to my right was the center of the furniture here. Above my head was the TV and on the opposite side of the TV were two comfy chairs that had low, U-shaped backs and thick cushions to sit on. It was from there that I decided I was hearing Kaitlyn. Knowing that my sister was having oral sex and was probably naked so close to me drove me wild. I redoubled my efforts to make Joanna cum.

I made a series of quick licks around Joanna's clit as Kaitlyn continued to moan. I had no idea how I was doing as this was a new position, and I couldn't hear Joanna's breathing over Kaitlyn's loud moans. I took a break from focusing on eating Joanna out to look upwards. She was holding her upper body straight, and her body seemed so long from this angle. She had her right arm on the couch back to help her keep her balance. Her small tits really stood out from her chest. I took a mental picture and stored it away as one of life's precious memories before I returned my focus to making her cum.

As my tongue danced around Joanna's clit, I listened to Kaitlyn continue to moan. The two couples having sex like this was incredibly crazy; like something out of a porn movie. What would Joanna do once I made her cum? Would she fuck me in front of Paul and Kaitlyn?

Kaitlyn's moans got even louder. "Oh! Oh! Oh!" It was incredibly erotic to hear my sister's cries of ecstasy. She sounded close to cumming. I had no idea how close Joanna was, so I continued frantically working her clit.

I heard Kaitlyn yell, "Yes!" and then she was quiet. A few moments later, I heard movement from that part of the room. Were they going to fuck in the chair right next to us? Then I heard them moving away from us and the door to the bedroom close. Shortly after that, Joanna came, flooding my face with her juices.

After Joanna clambered off me, I sat up. Joanna grabbed her clothes off the floor and said, "Let's go to our bedroom." I noticed Kaitlyn and Paul's clothes were still strewn all over the floor. Joanna smiled and said, "They'll have to pick them up later."

* * * *

The next morning Thursday, I was awakened by the sound of someone entering our bedroom. I looked up to see it was Kaitlyn, dressed in her crop top and shorts from last night. Joanna was snuggled against me on the wall side, so I had an unobstructed view of Kaitlyn.

Once Kaitlyn saw I was awake, she said quietly, "Good morning!"

I shook my head. What was Kaitlyn doing in my room? She had never come into my room when I was with a girlfriend before. From the light, it was probably ten minutes before Mom would knock on our doors. As much as I loved my sister, I didn't want her to see me and my girlfriend in bed naked. It bothered me that another social rule was being broken. "What are you doing here, Kaitlyn?"

I noticed Kaitlyn had something in her hand, which she dropped on the floor. Joanna was awake now, and she partially sat up so she could see.

Kaitlyn said, "Last night, Paul got a look at Joanna's naked backside. I want to keep things even." With that, she turned around. She grabbed her crop top, pulled it off and dropped it on the floor. She grabbed her shorts and pulled them slowly down while sexily wiggling her ass like Joanna had done the night before. Joanna laughed good-naturedly. I admired Kaitlyn's beautiful ass as she put on her show. She was a curvy girl and had a full, nicely-rounded ass. Her firm ass cheeks practically begged to be squeezed. Kaitlyn has to be the sexiest woman in the world. Eventually, Kaitlyn was squatting on the ground. There was enough light that I could see her stepping into something. Then she was moving upwards, swinging her ass side-to-side again, as she slowly pulled up her bikini bottoms. When she reached her full height, she pulled the bottoms into position. In her hand was her top, which she quickly put on while continuing to face away from us. She gave us a look over her shoulder, smiled, and said, "See ya soon."
Joanna said, "Kaitlyn! I'd like to have a long talk with Brandon. Could you cover for me at breakfast?"

"Sure. Talk as long as you want." And then Kaitlyn slipped out the door.

I looked at Joanna. I was curious as to what she wanted to have a long talk about. Last night, we had crashed right away after we had fucked, so there hadn't been a chance to talk.

Joanna said, "I want to talk about last night. It went waaay further than I was expecting. While you were kissing on Kaitlyn's neck and shoulders, Paul asked me several times if he could feel my tits. I said no, that we could only do what you and Kaitlyn were doing. Paul told you to feel Kaitlyn's tits so he could feel mine. He was happy when he saw you kiss Kaitlyn as that meant he could kiss me. Everything had me so excited I had to have sex right there and then."

So Paul had been more than fine about what Kaitlyn and I had done. Probably thought it creepy but was happy to ignore what we were doing if he could do what he wanted with Joanna. I was not in a happy mood.

Joanna smiled at me. "I've said it before, and I'll say it again; it was all harmless fun. This morning, I wanted to tell you why I think that. I have three reasons, the most important of which is you're my guy; you're the one I want to have sex with, the one I want to sleep with, the one I want to wake up with, the one I want to have fun with." That made me feel warm all over. Joanna had never declared her affection for me so strongly before. "Reason number two is that I trust you and Kaitlyn. You aren't going to do anything to hurt me. Hopefully, you trust me to not do anything that hurts you."

I liked how this talk was going. "I do, Joanna." And then I asked, "Do you trust Paul?"

Joanna chuckled. "No. Well, sort of. I think he'll keep his word, but he's very aggressive about making out and will push things if he sees an opportunity to do so."

"Like last night."

"Yes. I'm glad you were there to keep him from going too far. But it doesn't really matter as he'll be out of the picture soon."

"Oh really?"

"Yeah. I watched him and Kaitlyn, and he doesn't excite her at all. I think she'd dump him this morning if there was some convenient way of sending him home. But there isn't, so she'll try to make their relationship last until we get home."

I nodded. That made sense, and I was glad that Kaitlyn would dump Paul soon.

Joanna said, "This week has been a perfect storm. I think whatever you and Kaitlyn do is harmless because I trust you, and I think whatever Paul and I do is harmless because I probably won't see him again after this week. And I think it's important that we switch partners up so Kaitlyn can be happy as she keeps their relationship on life support." Joanna smiled. "I like alternating as I have fun with Paul, and then I have even more fun with you."

I smiled at that.

Joanna tapped her finger on my chest and said in a light but commanding voice, "So don't expect anything like this to happen again. You're to never kiss another girl besides Kaitlyn, and you can only kiss her for the rest of this week. After that, you're my guy full-time. Understood?"

Exactly what I wanted to hear. I kissed Joanna and then said, "Understood."

"Good." Joanna smiled. "There's something else I wanted to discuss. The other day, when Kaitlyn was discussing how Paul bought her so much stuff, it probably sounded very mercenary to you; like she's only dating him for the money he spends on her. And now that she has so much stuff, she's lost interest in him."

I thought back to the moment. "It did sound that way."

"There are two reasons why a girl wants a guy to spend money on her. One is that she wants to raise her lifestyle. I've done that. I hate being poor relative to all of my friends. I've dated guys primarily because I wanted them to spend money on me."

"And they were jerks."

"The ones I dated were. But there are nice guys who are happy to spend money on you. There's a reason why young women marry rich guys who are old enough to be their fathers - financial security has a lot of appeal in a world where men have more wealth than women. If I dated someone like Paul, his willingness to spend money would go a long way toward keeping me happy. But I don't think that's what Kaitlyn is looking for."

This was interesting. "What is she looking for then?"

"I think she views Paul spending money on her as a sign of affection, and she's looking for an openly-affectionate guy. They have this great synergy in that he likes buying her sexy clothes, and she likes dressing up sexy for him. The Friday Paul was arriving to spend his first weekend, Kaitlyn was so excited about dressing up sexy for him that she couldn't resist sharing with the rest of us at the office. That was her first fashion show there." I wished I had seen it. "But Kaitlyn doesn't need expensive clothes to dress sexy. You saw that last night."

"I did. She looked very hot last night." I belatedly added, "And so did you."

Joanna rolled her eyes slightly. "So her not being excited about Paul now isn't due to how full her closet is." Joanna looked thoughtful. "Something has changed since the end of college. Any idea what?"

"No." I was a little surprised our conversation had taken this turn. "I spent very little time with them at school."

Joanna sighed. "Well, Kaitlyn will probably tell me everything next week." She started climbing over me. "Time to go help make breakfast." Once she was out of bed, she threw on her nightshirt and said, "I'm so happy now. I wish Kaitlyn was happy with me." And then she left.

I lay on the bed, thinking about our conversation. A weird side effect of our group make-out sessions seemed to be that Joanna was much happier with our relationship, much closer to saying 'I love you.' Was it because the sessions required me to trust her so much? Whatever it was, I felt good about last night's session even though Kaitlyn and I had gone way, way over the line. If everyone else was fine with it, why shouldn't I be?

* * * *

This story was written by 8letters and published on Literotica.

When I came out for breakfast, Mom gave me a concerned look. Was she worried about Joanna and me having a long talk? Or did she suspect what the four of us were doing during her and Dad's walk?

During the morning's water skiing, Kaitlyn and Joanna regularly changed sides of the boat, and we guys almost always talked with whoever was sitting next to them. Kaitlyn was very happy when she talked with me. She didn't look happy when she was talking with Paul.

When the morning's water skiing was done, Kaitlyn had Joanna stay behind as the rest of us headed up to lunch. When the girls came into the lake house, they were giggling. Shortly thereafter, Kaitlyn told Mom that she and Joanna were going to go shopping after lunch and asked what was needed from the store. After Mom ate, she made a list and went over it with Kaitlyn.

I asked Kaitlyn, "Can I come with you?"

She gave me a smirk, and said, "No. It's a girls' shopping trip."

Once we were all done eating, I walked Joanna down to the minivan. She got in the passenger side, lowered the window, and said with an impish grin, "We're going to do some naughty shopping." She gave me a kiss, and then she and Kaitlyn were gone.

* * * *

The afternoon wasn't much fun without the girls as I was beginning to loathe Paul. The girls didn't get back until almost time to make dinner. Over dinner, they were all giggles. Or Kaitlyn was all giggles - Joanna swung from giggling to being nervous or anxious. But both were giggling madly when they went to Kaitlyn's bedroom after Mom and Dad had left. Paul and I waited impatiently for the girls to come out as we didn't have anything to say to each other. As every other night, Paul and I were wearing shirts, shorts and no shoes.

The door opened, and I turned to see Joanna stride out. She was wearing white high heel shoes; red panties that were cut low at her crotch and high on her waist; a shiny, plastic black belt; and the only thing above the belt was a raspberry-colored beret. She looked super-hot. And then Kaitlyn came out behind her dressed the same and turned the hotness up to eleven. She had great tits and just a sexy air about her. Watching her walk had me rock hard.

Joanna and Kaitlyn walked to in-between Paul and me as usual, and I was mildly surprised when Joanna turned toward me. I heard Kaitlyn say to Paul, "Be a good boy and you'll get your reward later." And then Joanna was on my lap.

Joanna kissed me on the lips, and our kisses quickly became very hot; short kisses with lots of passion. It was weird that kissing my girlfriend was now a hot, novel experience, but this week was weird. I had no idea of what the limits were. With the way the girls were dressed, we were clearly getting crazy tonight, beyond what we had done before. I decided to stay with the same limits as the first round last night.

After a few minutes of kisses, I stopped and leaned Joanna back from me. I said, "What a naughty outfit." Joanna wore high heels to work, but she'd never worn them on a date with me. The panties and belt were gaudy and looked cheaply made. I suspected the girls tried to spend as little as possible on their outfits and had picked clothes they felt they would look equally good in.

Joanna blushed a little. "You like it?"

"I love it. You look so hot in it, so very naughty." Joanna beamed in pleasure. "You like being my naughty girl, don't you?"

"I like being naughty."

"You look good enough to eat," I said as I moved my mouth slowly toward her tit.

"Not yet," said Joanna as she intercepted my head and brought my mouth up for another kiss.

We kissed for probably another minute before Joanna stood up. She turned and walked across to Paul, and Kaitlyn walked across to me. If Joanna looked hot, then Kaitlyn was on fire. The belt around her waist and the high-cut red panties emphasized her narrow waist and curvy hips. Her perfect tits swung gently side to side as she sashayed over to me. My opinion that my sister was the sexiest woman in the world was reconfirmed.

Once Kaitlyn was on my lap, she leaned back to give me a good look at her. "You like?"

"I like. You're an incredibly sexy woman. You could make a blind man see dressed like that."

Kaitlyn laughed before coming in for a kiss. During our next kiss, I pushed my tongue forward between her lips and she eagerly opened her mouth to accept it, moaning once my tongue was in her mouth. I had been unprepared for Frenching with my sister last night, but I was ready and eager tonight. I knew it was wrong; I knew I shouldn't, but the other three were pushing me to do it and - damn it! - I wanted to do it. I loved it - I loved holding Kaitlyn close, the feel of her skin and most of all the sensation of our tongues frolicking together while our mouths were locked. I had never enjoyed kissing someone so much before. The kissing had my cock almost painfully hard. The wickedness of passionately kissing my sister in front of my girlfriend and her boyfriend while my parents were blissfully gone on a walk was driving me crazy. It was sick, weird and immoral, but it was also incredibly erotic.

Kaitlyn shifted her weight as she kissed me so that my cock was now pressing against her pantie-covered pussy. Had she intended that? No, she couldn't have intended that as this round was to be kissing with nothing sexual.

Then Kaitlyn shifted her weight again, rocking her hips forward to press more of my cock against her pussy. And then she rocked back, relieving the pressure. She continued lightly rocking back-and-forth as we frantically kissed. When I had thought kissing my sister was as hot as it could get, she managed to turn it up hotter.

Kaitlyn stood up suddenly. I could have kissed her for hours, but I knew she and Joanna had a plan for the evening. Were they even bothering to try to teach Paul better foreplay technique? I watched Kaitlyn's ass as she swung it slightly back-and-forth on the way back to Paul. The panties covered about half of her ass cheek, providing some shaping to an ass with great shape.

When Joanna straddled my lap, she said, "Hands, no mouth." I assumed she was stating the rules for how I could touch her tits.

"May I kiss?"

"You certainly may," said Joanna as she lowered her mouth toward mine. As we kissed, I brought my hands up, cupped her tits and gave them a light squeeze. We did a series of soft kisses that ended in loud smacks as I gently explored her tits. I didn't know if Frenching was permitted during this part, so I decided to let Joanna initiate any tongue. When I squeezed her nipples between my fingers, Joanna pushed her tongue against my lips. I brought my tongue forward and met her tongue outside of my mouth. We had a sort of sword fight with our tongues (a tongue fight?). It was silly and childish, and a lot of fun. After the extreme sexual intensity of making out with Kaitlyn, it was good to have fun. I felt a swell of affection for Joanna - she really was a great girlfriend.

I stopped the tongue fight, moved my hands aside and said, "You have wonderful tits."

"Kaitlyn's are better." Joanna was obviously bothered by her best friend's anatomical superiority.

"So? She has wonderful tits, and you have wonderful tits; just different types of wonderfulness. And your tits suit my naughty girl."

Joanna stood up. "Thanks." There was more sadness in her voice than happiness. I smiled at her, trying to show her how happy I was to have her as my girlfriend. I watched her as she walked over toward Paul. She had great legs - better than Kaitlyn's - and they looked even better in the high heels. She had a very nice ass. A little before she got to Paul, Joanna looked back and saw me looking at her.

Kaitlyn was by my side. To my surprise, she didn't hop on my lap. Instead, she looked back at Joanna and smiled; then turned back to me and said, "Stand up."

I stood up and looked over to see that Paul was doing the same.

Kaitlyn grabbed the bottom of my shirt and pulled it upwards. I bent forward so she could take it off me more easily. Once the shirt was off of my head, I looked over and saw Joanna doing the same to Paul. The girls dropped to their knees while looking at each other. They nodded to each other and turned back to their man. I looked down to see Kaitlyn grab my shorts and pull them down. She grabbed my boxers and pulled them down too. As I stepped out of them, I looked over and saw that Paul was naked like I was.

Kaitlyn stood up while pressing me back onto the chair. Once I was seated, she straddled my lap and kissed me hard on the lips. As soon as her tongue was in my mouth, I squeezed her tits. The sexual intensity was back up to eleven. Kaitlyn broke off the kiss, put her hands behind my head and hissed, "Suck them!" as she pulled my mouth to her nipple. Kaitlyn moaned as soon as I started sucking. I felt like a starving baby who was desperate to nurse.

"That's it, Brandon. Suck on my tit." Kaitlyn ran her fingers through my hair as she kept up a quiet monologue. "It feels so good. I've been wanting you to suck on my tits since I watched you suck on Joanna's tits while Paul slobbered on mine." Her fingers running over my scalp were giving me thrills. "Oh, yeah. I so like that." I stopped sucking on Kaitlyn's tit and instead kissed around her nipple, giving a little suck with each kiss. "Damn that feels good, you sneaky bastard. You don't know what you do to me, Brandon. I love it. I love the feel of your mouth on my tit. Time to suck on the other one." Kaitlyn shifted me to her left tit. "You've got me so excited, Brandon. I'm probably sopping wet."

Kaitlyn shifted her position and again my cock was pressed against her pussy. She started rocking her hips back and forth, grinding her pussy against my cock as I sucked on her tit; only the thin material of her flimsy panties was keeping us from having sex.

Kaitlyn said in a quiet voice full of passion, "I want to fuck you, Brandon. I want to feel your dick inside of me. I want you to make me moan, make me scream. I want you to cum inside of me, to fill me with your cum."

I couldn't take it anymore. I pushed Kaitlyn off of me and stood up. I had to end it now or I'd be throwing Kaitlyn down on the couch and ripping her panties off. I looked over at Joanna and Paul - Paul was slobbering on her tits enthusiastically while Joanna was running her fingers through his hair. It took me a moment to catch my breath enough to say, "Joanna, let's go to our bedroom."

I held my hand out to Joanna as I started walking toward our bedroom. She hopped off of Paul and walked quickly over to join me. I couldn't look at Kaitlyn - she had pushed me past what I could take from her, and I had to get away.

Once I had closed the door, Joanna dragged me by my cock over to the bed. She sat down on it and took my cock into her mouth while I stood. She bobbed two or three times before I exploded in her mouth. I came and came and came. I didn't know I could make so much cum. Joanna kept bobbing her head, sucking it all down.

Once I was spent, Joanna moved back on the bed and started removing what little she was wearing. "Someone was excited. Did you have fun with Kaitlyn tonight?"

I saw no point in denying it. "I did. That was crazy. Too crazy. Did you have fun with Paul?"

Joanna was naked now, and she patted on the bed for me to join her. "I did. I was very naughty with Paul tonight. He wants to fuck me. Do you want to fuck Kaitlyn?"

I felt like a huge pit had opened up in front of me. That was the obvious direction our make-out sessions were going. And Kaitlyn had enthusiastically endorsed the idea of me fucking her. "I can't, Joanna. She's my sister." I closed my eyes. It was painful to think this hard about the subject. "It's wrong. And what if our parents found out? Or people at--"

Joanna put her hand on my leg and said, "Relax. I'm not asking you to fuck Kaitlyn. She and I agreed before tonight that we'd never have sex with someone who wasn't our boyfriend; no oral either way and no fucking. Tonight was probably as far as we'll ever go." Joanna's hand slipped up my leg and grasped my cock. "So I'm asking you a hypothetical question; do you want to fuck Kaitlyn?" My cock started stiffening as she stroked it up and down. "Do you wish you could fuck Kaitlyn, even though you can't because she's not your girlfriend?"

I couldn't avoid the truth. "Yes, I wish I could fuck Kaitlyn. I'll never do it, but I definitely want to do it."

Joanna released my cock and swung her body over mine. I was lying on my back and now her crotch was on top of mine.

I asked, "Are you happy with that answer?"

Joanna positioned her pussy lips on top of my cock and started sliding back and forth on my cock. She looked down at me and smiled. "I am. I'm glad you're so honest with me." Joanna partially sat up, putting her hands on my chest and leaning on me so she could slide her pussy more easily up and down my cock. I was completely hard again. She just smiled at me as she continued gliding her pussy back and forth. And then she stopped gliding and rose up on one leg. She grabbed my cock and guided it to her pussy before slowly sinking down on it.

Once I was fully embedded in her, Joanna said, "Now fuck me like you want to fuck Kaitlyn."

* * * * Chapter 4 * * * *

I drifted through Friday morning. My sister had told me in no uncertain terms she wanted to fuck me, my girlfriend had weaseled out of me that I wished I could fuck my sister, and they were all smiles and laughter this morning. Paul was all smiles too, laughing and cutting up with them. Kaitlyn seemed to glow with joy.

We water skied, and I did miserable when I was out on the water. When Mom or Dad skied, thankfully Kaitlyn steered with Joanna as lookout as I would have been a nautical hazard. I mostly stayed close to the lookout seat though facing away so Mom couldn't see my face, and I did my best to look cheerful while my brain struggled to process last night. What stuck out was how much more aggressive Kaitlyn had been. Before last night, I could write off everything Kaitlyn and I had done as innocent fun. There was nothing innocent in how she had acted last night. I tried to think of reasons for the change and came up with nothing.
But had anything changed? Joanna was still my girlfriend; she had made it clear she wasn't going to have sex with Paul and had said Kaitlyn had agreed to not have sex with me. But Kaitlyn last night had made it abundantly clear she wanted us to fuck. Kaitlyn and Joanna had spent the whole afternoon together. Had they miscommunicated?

Deep down, I knew I couldn't resist Kaitlyn. My desire for her had been building steadily through the week. She was the sexiest woman I knew. If an opportunity came up for us to fuck and Joanna didn't stop us, Kaitlyn and I would do what she wanted. At the same time, she was my sister, and I knew we shouldn't have sex. Especially because Joanna and Paul would know what we did. What if Paul got jealous and went to my parents? That'd make our lives a mess.

How would Joanna respond to Kaitlyn and me fucking? Would it be the end of our relationship? She had seemed almost happy when I said I wished I could fuck Kaitlyn. Why would my girlfriend want me to fuck her best friend, my sister? Was it that she got off on the idea of a brother having such immoral desires for his sister? Or was there something else? I had the feeling Joanna and Kaitlyn were working together to get Kaitlyn and me in bed, and it was only a matter of time before it happened.

For lunch, I made a sandwich, wandered out onto the deck and made for a far corner. I wanted to be alone so I could pull my thoughts together enough that when Mom and Dad "napped", I could have an intelligent conversation with Kaitlyn and Joanna about what was going on.

To my surprise, Mom came out of the lake house and sat down next to me with her lunch. We chitchatted for a while, and I did my best to act normal.

Finally, Mom said, "What's wrong, Brandon?"

"Wrong, Mom?"

"You've been acting out of sorts this morning. What's wrong?"

Your daughter wants to fuck me, I'm probably going to let her, and I think my girlfriend is okay with the idea. But other than that, everything's normal.

"I don't know, Mom. I think I'm worn down. I do a lot of physical work at the golf course, and I've been out on the water constantly since we've been here. Maybe I should take a big nap this afternoon while the rest of you water ski."

"Don't lie to me, honey. I know something's going on."

Oh shit! Does she suspect what we've been doing at night? I had to say something is wrong, but what?

I sighed and shook my head to give me time to come up with something, and then said, "I don't get along well with Paul."

"You haven't been upset for two days because of Paul."

True. As I didn't know exactly what Mom had observed/figured out, I decided the best course of action was to keep my mouth shut. I shrugged and picked up my sandwich.

Mom said, "You're upset about Joanna, aren't you?"

My eyes widened. Did Mom suspect what Joanna and Paul had been doing? If she did, she probably suspected what Kaitlyn and I were doing. I decided to hedge the best I could. "Yeah. Things have been different between us the last few days."

"Oh, Honey," Mom said in an 'it-hurts-me-more-than-it-hurts-you' tone. "I had worried Kaitlyn and Paul might break up during this week, but you and Joanna breaking up hadn't crossed my mind."

"I don't think we're breaking up." We'd happily fucked last night.

"You two are pulling away from each other. Look Honey, being together constantly for a week is very stressful, particularly when you're with the same people and are doing the same things day after day. Don't rush to any decisions."

You have no idea what you're talking about.

Mom continued in her concerned mom voice, "I've known Joanna for years, and I think the world of her. She's grown up in a very difficult situation, and, given that, she's amazingly well-adjusted. She's overcome a lot of challenges, and I admire her resilience, but she's going to have struggles you can't understand because you've grown up in a stable, loving family."

Someone who grew up in that same stable, loving family wants to fuck me.

"Love is all fireworks at your age. But when the fireworks dim, real love is work."

Fireworks with Kaitlyn. What an awesome image!

"There are days when I don't like your father, even though I still love him. Love is a choice; it's deciding every day to be totally committed to your other. I see Joanna as the type of person who can do that."

You have no fucking idea what you're talking about.

"What I'm saying is she's worth persevering for. Give her a second chance, and a third chance, and a fourth chance before you decide to do anything you might regret later. Okay?"

"Okay, Mom." I'll go back now to thinking about fucking my sister.

Mom stood up and smiled at me, motherly message delivered. She went back into the lake house, leaving me to my thoughts.

* * * *

After I finished my lunch, I went inside and joined everyone else. I decided the best thing to do was to try to act as normal as possible. I chatted with Kaitlyn and Paul for a little bit. Normally after lunch, Joanna and Kaitlyn changed from athletic swimwear to much smaller sunning bikinis, but only Joanna made the change today. The four of us took the stairs down and split as usual, with Paul heading with his tablet to the hammock.

When we were about halfway to the chaise lounges, Kaitlyn said to me, "Let's go ride jet skis."

"You don't want to lie out?"

"No. That's why I didn't change bikinis."

"Do you want to go with Paul?"

Kaitlyn rolled her eyes. "No."

I shrugged and said, "Okay." I waved to Joanna. "See ya in a while."

Joanna said, "Have fun!"

Kaitlyn gave her a big smile. "You too."

As we walked down towards the boat house, Kaitlyn asked, "What did Mom say to you?"

"She's concerned because I haven't been my normal self recently."

Kaitlyn reached out and gave my hand a squeeze. "You're having a hard time with what we've been doing at night, and I admire you for that. So many guys would be 'The more making out the better'. Paul is certainly that way. But you're not comfortable making out with someone you're not committed to, are you?"

I was so thankful that Kaitlyn understood. "No, I'm not."

"Well, tonight is our last time since tomorrow night we have the big campfire." Our family tradition was that on the last night of vacation, we'd have a beach campfire where'd we tell stories, roast marshmallows and make s'mores. It was an evening of family fun. Kaitlyn gave me a big smile and said, "I think tonight is going to be very special."

* * * *

We jet skied for about twenty minutes before returning. Kaitlyn and I had taken turns splashing the other, and I had gotten the best of her. I was in a much better mood as we walked back towards the lake house.

"Where's Joanna?" I asked. She wasn't sitting on a chaise lounge.

"Let's see if she's in the mud room."

There was no reason for Joanna to be in the mud room, but there weren't many other places she could be. The lake house was actually kind of lonely - the only people besides Paul in sight were well out on the lake.

When we got to the door to the mud room, Kaitlyn lightly grabbed my wrist to get my attention. When I turned to her, she asked me, "Last night when I told I wanted you to fuck me, what did you think of that? Did it appeal to you?"

My thoughts were instantly scrambled as I both wanted to fuck Kaitlyn and was repulsed by the idea. What kind of guy wants to fuck his sister? Particularly when he's got a girlfriend?

When I didn't respond, Kaitlyn gave me a small, knowing smile. I felt like I had been zapped with a stun gun. Why was Kaitlyn asking me this just before we're probably going to talk to Joanna? Why was Joanna waiting for us in the mud room? My mind swam.

Kaitlyn opened the door and lightly pulled me by arm into the mud room. Joanna was waiting there, leaning against the washing machine. Kaitlyn said to her, "Did you have fun?"

Joanna smiled. "I did." She turned to me and said, "I was naughty while you were gone, and I think we need to even things up."

Another zap by a stun gun. She was naughty? We needed to even things up?

Kaitlyn said, "Okay. What did you do?"

"Once you left, I went over to talk to Paul. He didn't want to pay attention to me, so I took my top off."

What the hell? Anger surged through me.

"Like this?" said Kaitlyn as grabbed her bikini top and pulled it over her head. Her beautiful tits bounced gently as they were freed. My jaw dropped.

"Yes," said Joanna. "That got Paul's attention."

I was overwhelmed with a feeling of surrealism; my anger forgotten. My girlfriend had just told me and Paul's girlfriend that she had gone topless to get Paul's attention. Kaitlyn hadn't been upset by the news at all. Instead, she had taken off her top. Both Kaitlyn and Joanna were acting like this was perfectly normal. I couldn't process it all.

Joanna said, "He squeezed one tit and sucked on the other."

"Like this?" asked Kaitlyn and as she put one of my hands on her tit and reached for the back of my head. I thought about resisting, but I was too dazed to put up a fight. Kaitlyn pulled my head slowly downward, and my mouth opened on its own to latch onto Kaitlyn's tit. I sucked on her nipple, tasting the lake water it was still damp with. I loved Kaitlyn's tits and was ecstatic to be enjoying them once again.

Kaitlyn said to Joanna, "I'm not surprised. Paul is such a tit man. He squeezes and sucks on my tits whenever he can."

Joanna ran her fingers through my hair as I sucked on my sister's tit. She said in a friendly, taunting tone, "I told you she had nicer tits than me."

I didn't reply. Not because my mouth was full of tit, but because I was trying to understand what was going on. This felt well-planned, but why would Joanna cheat on me with Paul? Why would she be so happy about me sucking on Kaitlyn's tit?

Kaitlyn said, "You were naughty. Did you do anything else?"

"Oh yes. While Paul sucked on my tit, I undid his swim trunks."

"Like this?" said Kaitlyn as she reached down to my swim trunks. I had the feeling I should try to stop her, that Kaitlyn was going too far, but my brain was too busy trying to process Joanna's revelation. Part of my brain was saying I should be furious about Joanna undoing Paul's swim trunks, but my brain's circuits were too overloaded for that message to go very far.

Kaitlyn loosened the strings of my trunks, popped me off her tit and then squatted down so she was facing my swim trunks. "Did you pull them down like this?" she asked Joanna as she pulled down my swim trunks. My cock was fully erect when she freed it. Kaitlyn pulled my swim trunks all the way down to my feet. The feeling of surrealism overwhelmed me - my sister was stripping me naked with my girlfriend's approval. When Kaitlyn lifted my leg slightly, I rotely stepped out of my trunks. She reached up and grabbed my cock firmly.

"Did you lick it like this?" Kaitlyn asked. She stuck out her tongue and pressed it against my cock near its base. I felt something like a ten thousand volt shock. Kaitlyn looked me in the eye as she slowly slid her tongue up my cock, causing me to shiver with pleasure. No one's tongue had ever felt so good on my cock. She slowly licked upward until she reached the crown of my cock.

Joanna stood there and watched as Kaitlyn licked up and down my cock a few times like it was the most normal thing in the world. My brain was blown. This made no sense whatsoever. This week had been crazy; last night had been incredibly crazy; but this took crazy to beyond the moon. I remembered Joanna saying last night We'd never have sex with someone who wasn't our boyfriend. No oral either way, no fucking. That was apparently non-operable now. Or did this mean...

Joanna moved so she was standing right next to me. She looked down at Kaitlyn with a big smile and said, "You're so naughty, Kaitlyn."

Kaitlyn looked at Joanna, smiled and then guided my cock into her mouth. Joanna watched happily as Kaitlyn swallowed my cock. I moaned. Kaitlyn's mouth felt so wonderful. The sexual intensity was back up to eleven, magnifying the pleasure Kaitlyn's mouth was giving. She slowly pulled back while her lips gripped my cock firmly until her lips reached the crown, before diving down on my cock again. The whole time, her brilliant blue eyes were locked on mine.

Joanna said, "She looks so sexy, doesn't she?"

I couldn't answer as I was too overwhelmed; overwhelmed by pleasure and emotion. Kaitlyn did look damn sexy, but I was focused on the great feelings her mouth was giving my cock. While my girlfriend watched and made friendly small talk!

Kaitlyn slowly pulled her lips up my cock and then dived back down on it. She did that four or five times, giving me massive amounts of pleasure, before circling her tongue around my crown. She was damn good at giving head while maintaining eye contact, which made it unimaginably hot.

Kaitlyn continued on like that, bobbing her head five or six times before doing something different like licking up and down my cock or circling her tongue around my crown. It didn't take her long to get me on the verge of cumming.

"I'm about to cum."

Kaitlyn started bobbing furiously up and down my cock, which I took to mean she wanted me to cum in her mouth. Her ministrations felt so good. A few more bobs and I went over the edge; a wave of pleasure swept over me as I painted her tonsils with sperm. She sucked it all down, a happy look on her face. Once I stopped spurting, she slowed and eventually pulled my shrinking cock out of her mouth for a few more licks. She gave me a sexy look as she gave my cock a final kiss and then stood up.

Joanna leaned against me, gave me a peck on the cheek, and said, "Please don't be angry with me," before leaving.

I leaned against the washing machine and caught my breath. So much had happened, not just right now but over the whole week. I was mentally and emotionally overwhelmed.

Kaitlyn asked, "Do you know what's going on?"

"I think so. I think you and Joanna have decided to switch boyfriends. That was her handing me off to you while letting me know she's with Paul now."

I couldn't believe it. I couldn't believe she'd dump me for that big doofus. I had tried so hard to make our relationship work and now...I was stunned. It had happened so fast. I had seen it coming a little, but the speed in which she had decided Paul was better left me shaken. Part of me felt I should be angry; feel betrayed. But things had happened too fast. And it wasn't like Joanna had done anything behind my back or left me high and dry - she had given me to Kaitlyn.

Kaitlyn said delicately, "I can see why you'd think that, but it's not exactly like that. I want you to give me a chance as your girlfriend. I know that sounds crazy as I'm your sister, but it's what I want with all my soul. I've wanted it since Monday when I saw you sucking on Joanna's tits while Paul slobbered on mine. But I couldn't exactly say Tuesday morning 'How about dumping Joanna and trying me as your girlfriend?' So I've been working since Monday to get us to this point. I've done some things that were very wrong; I've been a selfish, evil person; and the only justification I can offer is that I thought the ends justified the means. I think you're the guy for me. I'm attracted to you like I've never been attracted to a guy before; I have so much fun with you; whatever making out we've done has driven me crazy with lust; it's so easy for me to be honest with you, and I need that badly; and I think we'll be very, very happy together. Joanna agrees with my judgment and will fully support us. After last night and just now, I think you can take seriously my feelings for you. Would you please give me a chance as your girlfriend?"

I was still struggling with my anger. I felt manipulated, lied to. I was pissed that Joanna had dumped me. I was in no mood to agree with anything.

I said, "It's not a fair question, Kaitlyn. Joanna has already dumped me. If I don't agree, what happens? My summer is fucking ruined. It's a stupid idea that'll never work. What the hell, Kaitlyn? What the hell?"

Kaitlyn sighed. She moved so we were standing side-by-side with her butt against the washing machine. "You have every right to be angry with me. Everything bad that has happened is because of me. Please don't be angry with Joanna. Let me tell you everything, put it all out there, and then let's discuss my idea. Okay?"

I grudgingly said, "Okay."

"I told you once that in high school you had been such a huge presence in my life. I don't know if I had a crush on you then, but I did admire you. I loved talking with Joanna about you. Poor Joanna; she had such a bad crush on you, and I rubbed it by talking constantly about you dating one of our friends. But she was such a great friend that she overlooked it and never made a negative comment about me being obsessed with my own brother. You created a void when you went off to college. I had boyfriends, but they never really filled that void."

Kaitlyn slid down the washing machine until she was on the floor. I joined her. She said, "At the beginning of the summer, you were coming home single. Joanna had recently gotten out of a destructive relationship, so I thought it would perfect for you to date her. I was very happy with Paul, though I knew that long-distance dating for the summer would suck. So I asked you to go out with Joanna for the summer."

"Which I wasn't wild about initially, but eventually I was glad I did as I had a lot of fun with Joanna."

"With Joanna and me - we always did things together. I got to see up close how you treat your girlfriends; you were great with Joanna. And as Joanna is such a dear friend to me, I wanted you two to become a happy couple."

And now you don't. Her statement was bitterly ironic. "You wanted me to fuck her."

"I wanted you to sweep her off her feet and tell her you loved her. I wanted you two to spend as much time as possible together as a couple, to be so involved by the end of the summer that you'd keep dating when you returned to college. I wanted you to make her really happy. She's never been as happy as she deserves to be."

"I wish I loved someone as much as you and Joanna love each other."

Kaitlyn gave me a smile. My anger at her was slowly dissipating. It's hard to be angry at someone who cares so much for the people close to her. "Back to my story. I spent all this time with you and Joanna, and I had a blast. Suddenly, I wanted a boyfriend who was as fun to be with as you were and would treat me like you treated Joanna. Paul's visit became less and less enjoyable."

I could see that. "Okay."

"By the time we left for the lake, I was getting concerned about you and Joanna. You hadn't had sex though you had dated long enough."

"Well, we had."

Kaitlyn shot me a look that made it clear she was still pissed about us hiding something of such importance from her. "And for some reason, she was stuck on the idea you didn't really care for her and were only doing stuff with her because I had asked you to. I couldn't convince her otherwise. I also started to wonder if you didn't like her as much as I thought you did. You seemed so happy with her when the three of us were together, but you weren't making a serious move on her."

I nodded. I could see why she had thought that.

Kaitlyn said, "But I knew when we got to the lake, you two would take a big step forward in your relationship by making love. Then you didn't, and I could see my plans for a life-changing relationship for Joanna were going down the drain. So, Sunday, I came up with a plan to get you and Joanna to make love using peer pressure. And the plan had the bonus of getting Paul to do more foreplay with me than he usually did." Kaitlyn had been looking at me, but she suddenly looked forward instead. "But I think you and Joanna were resentful of how much I was bossing you around. You threw a monkey wrench into my plan by kissing Joanna's neck, and Joanna threw another by suggesting you do the same for me." Kaitlyn closed her eyes. "Oh my god. When you kissed my neck, you can't believe how hard it hit me. It was like I had been struck by lightning. Nothing had ever come close to exciting me so much. I started considering that maybe I didn't want a boyfriend like you...maybe that the boyfriend I wanted was you." Kaitlyn opened her eyes and shook her head. "That night was so intense. And the next night was even more intense. When I saw you sucking on Joanna's tits while Paul slobbered on mine, I was insanely jealous. I had to have you as my boyfriend. I spent the night thinking and thinking, and finally came up with a crazy plan I thought would bring us together."
So Joanna having some naughty fun had secretly pushed Kaitlyn over the edge? "Didn't the fact that I was your brother give you second thoughts about your plan?"

Kaitlyn looked at me. "Yes. No. Well, yes. If you hadn't been my brother, I would have told Joanna a couple of weeks ago that if she wasn't going to lock you up, I'd take you. But that night, I wanted you so much I didn't care that you were my brother. When I started working on a plan though, I definitely took into account that you were my brother." She looked forward again. "That's when I started acting selfish and evil. If I was going to have you, I'd have to break you and Joanna up. And the easiest way to do that was to get her to want Paul instead of you." Kaitlyn turned to me, looked deeply into my eye and said in a tone that was as serious as a heart attack, "Don't blame Joanna for anything. It was all because of me. I know her every weakness, and I used them all against her to get her to give up a great guy because I wanted him too."

I pulled back a little. Her admitting she had betrayed her best friend like that was creepy. "What were some of the things you did?"

Kaitlyn looked forward again. "I knew Paul was interested in Joanna, and I subtly coached him on how to woo her. I made sure they had time together, and I did my best to distract you during those times. When I told you and Joanna I was thinking of breaking up with Paul, it was actually a sales pitch for Paul to Joanna. I inflamed Joanna's desire for nice clothes and lingerie. I prompted Joanna to come up with a plan to try to save my relationship with Paul that involved her making out with Paul. I begged her to let Paul feel her tits as a reward for not going for mine while we kissed." Kaitlyn said in a mocking tone, "I so want to try to save this relationship, and it's the only thing that will motivate Paul to learn to slow down." She switched back to her normal tone of voice. "Utter bullshit. I was so done with Paul by that point."

"Why? Joanna said you had sounded so in love with him at the beginning of the summer, but you seemed ready to break up with Paul as soon as we got here."

"The first night when Paul refused to cook dinner so he could play his stupid game, I gave him hell after we had sex and told him he needed to help cook breakfast or dinner. He told me he wasn't going to help cook, that he'd do something else, and he didn't care what I thought. I considered us done at that point, though I'd be his girlfriend for the rest of the week so things wouldn't get too ugly. And I think Paul knew what I was thinking." Kaitlyn made a throwing gesture with her hand, like she was throwing Paul away. "When I told you on the jet ski that I'd dump Paul in a heartbeat if I knew of a guy who I'd thought would make a great boyfriend, it was something of a lie. I was already convinced that you'd make a great boyfriend. Every moment we've spent together since Monday night has made me more convinced of that. But I didn't think I could tell you that then, that it was too early." Kaitlyn reached out and took my hand lightly. "Instead, I misled you and lied to you. I'm sorry." She squeezed me hand and then let it go."

"The ends justified the means?"

Kaitlyn exhaled. "Please believe me when I say I hated myself for doing that. I wanted to get to this talk without lying or misleading you. But I wanted to give Paul time to work on Joanna. That meant keeping you talking, and I did so by telling lies and misleading you. Even though I thought the ends justified doing that, I still didn't like doing it." Kaitlyn being so honest was defusing my anger. "At that point, I was undermining your relationship with Joanna with no idea if you were actually interested in me. If you weren't, I'd have to mend things between you and Joanna, and I was worried I had pushed things too far along between Paul and Joanna to do that. I was really worried I was hurting the two people I loved the most over a pipe dream."

"It's a crazy idea." But I was starting to warm to it. "That night, did you plan on Paul going for Joanna's tits and suggesting I go for yours?"

Kaitlyn laughed. "No, but I had been hoping something like that would happen. The way you kissed me" - she gave me a big smile - "I knew you had feelings for me similar to what I felt for you. From then on, I had hope that everything would turn out the way I wanted."

I thought back on that night - it had been the turning point. It was the first time I had initiated something with my sister. I had known it was wrong, but I hadn't been able to resist. And now my sister wanted me to give her a chance as my girlfriend.

Kaitlyn stood up, so I stood up too. She faced me and said, "When Joanna and I went shopping, we discussed switching. I brought it up as a joke at first, saying I couldn't possibly have my own brother as my boyfriend. But once Joanna knew I wanted to switch, she was all for it, and we discussed how we could make it happen." Kaitlyn looked sternly at me again. "Don't blame Joanna. When I let her know I wanted to switch, it became of question of loyalty, and she decided to be more loyal to her best friend of six years than her boyfriend of six weeks."

There was more to it than that. Joanna had also seen Paul as roughly as appealing as me for her to consider the switch. I still didn't understand what Joanna saw in Paul.

Kaitlyn was suddenly in my arms, leaning against me while looking up at me. She had such a beautiful face. As I looked into her brilliant blue eyes, she asked "Is there anything more you want to know? I'm sorry I lied to you, that I manipulated you and Joanna. I'm glad to be honest with you now. I know I'm asking you to make a big decision on very little information, to make a leap of faith. I'm asking you to trust me that I have a plan for making everything work. But I think it'll work. I think we'll be very, very happy together. Are you willing to give me a chance, Brandon? Will you give me a chance as your girlfriend?"

My anger was gone. She had done things that I disagreed with, but she was open about what she had done and why she had done it.

I opened my mouth, but Kaitlyn put her finger over it before I could say anything. She said, "If you don't want to try it, I'll understand. Joanna is outside, and she'll go back to being your girlfriend if you don't want me. And I'll do everything in my power to help you two patch things up. I want you to be happy, Brandon. I want you, Joanna and me to be happy. Your answer won't change that in any way. Choose what you think is best."

I said, "If I give you a chance, does that mean no more lying and misleading?"

Kaitlyn sadly shook her head. "Just the opposite. We're going to have to hide our relationship from Mom, Dad, and our friends at college. That means lying and misleading. That'll come naturally for me, but I know it'll be hard for you."

Did I want to do that? Would being with Kaitlyn justify what we'd have to do to be a couple? Would the ends justify the means?

I thought it over. I knew I should say no, that it was wrong and wouldn't work; that it wasn't worth the risk of destroying our reputations and our relationship with our parents. But I couldn't. I wanted Kaitlyn; she had spent days selling herself to me, and I was eager to buy. I trusted Kaitlyn; I knew she would walk over broken glass to make this work. It sounded crazy, but if there was anyone who could make it work, it was her.

I smiled and said, "When I think of what I want in a women, you're a nine or a ten on each of those attributes. You're beautiful, you're fun, you're smart, you're sexy, you want to make me and the people around you happy, you've got a great body and I'll go out on a limb here and guess you're great in bed. You're everything I want. I don't know what's going to happen, but I want to try to make a go of it."

I bent forward and kissed Kaitlyn while taking her deeper into my arms. We pressed our lips firmly together for a long moment before Kaitlyn pushed her tongue into my mouth. She pressed her marvelous tits into my bare chest. I reached down and squeezed her bikini-covered ass. We kissed for a long time, enjoying our first kiss as a couple.

When the kiss ended, Kaitlyn said, "Remember, this isn't going to be easy. You're going to have to be open to doing whatever it takes to make it work. We're going to have to accept half a loaf. But I think it'll be great eventually."

"I think it'll be great right away," I said before I kissed her again.

When the kiss ended, Kaitlyn was all business. She grabbed her bikini top and said, "Okay. I'll let Joanna know your decision. She has plans for tonight, and she promised me that if we went along, she'd make sure Paul fully supports us as a couple." Her top was on now. She handed me my swim trunks and gave me a quick kiss. "Gotta go. I'm looking forward to being yours tonight."

* * * * Chapter 5 * * * *

When my parents got up, we went water skiing. My emotions were still churning which I did my best to hide from Mom. As we rode over to where we'd water ski, Mom and Dad were up front. I sat to Joanna's left on the bench on Mom's side of the boat and used her to block Mom's view of me. My arm was behind Joanna's back, but I didn't talk to her. When she tried to talk to me, I didn't respond. I watched the wake of the boat.

I felt like a dog chasing his tail. Back in the mud room, it had seemed like such a great idea to give Kaitlyn a chance as my girlfriend. Now, I tried to picture how things would work and was coming up empty. Would Paul come for visits? Would Kaitlyn sneak into my bedroom at my parents' house? Kaitlyn had said she had a plan, and that'd I have to trust her, but it was hard trusting her that much. Part of me said I should back out, that it wasn't too late. That part was still angry about how Kaitlyn had broken Joanna and me up so I'd give her a chance. I could break up with Joanna; Kaitlyn would break up with Paul; and Joanna and Paul would ride off into the sunset. The rest of my summer would suck, but I wouldn't have done too much that I'd be ashamed about. It'd be easy to keep my parents in the dark on what happened this week.

I thought about Joanna's attitude - why didn't the idea of a brother and a sister having sex disgust her? I'd think most people would be disgusted. I'd have been disgusted if it was Joanna having sex with her brother. I got that Joanna didn't judge Kaitlyn, but there was a limit and I thought her having sex with her brother was well past that limit. Joanna from the beginning had seemed to like the idea of me having sex with my Kaitlyn. Joanna had passed it off as a way to tease Kaitlyn about how she had the boyfriend Kaitlyn secretly wanted.

Was that true? Or had Joanna always known Kaitlyn had wanted me, but wouldn't/couldn't admit she did? Was that why Joanna had always kept me at arm's length emotionally? So she wouldn't be hurt when she finally steered me into getting together with her best friend?

I turned to Joanna and asked quietly, "Why did you break up with me? Was it out of loyalty to Kaitlyn?"

"No!" She looked away for a few moments. "Okay, loyalty did play a part, but I'm excited about being with Paul. Aren't you excited about being with Kaitlyn?"

"I am. It's just..." I wanted Kaitlyn, but I hated that Joanna had dumped me.

"Kaitlyn didn't force me to switch. She asked me to think about it, and she suggested I have the conversation I had with you last night about whether you wanted to have sex with her. When you said you wanted to fuck her, I decided to make everybody happy. I thought you'd be really happy about the switch."

I looked away and once again tried to get a hold of my emotions. Was Joanna only doing what she thought would make everyone happy? Joanna was a sweet and loving enough person that I could see her doing that.

Suddenly, I realized the import of what Joanna had just said to me. Kaitlyn had manipulated her into asking me a very specific question, had known what answer I was going to give and had prepared Joanna to accept that answer as the reason to break up with me and get together with Paul. Anger flared in me. What the hell was I doing? Getting involved with such a manipulative bitch? What she had done was terrible. She had used her best friend horribly. This was ridiculous. How could I ever trust someone who was so manipulative? I was letting my lust for my sister overrule my better judgment. It had overruled my better judgment. I should have told Kaitlyn no in the mud room. Now, I had already broken up with Joanna. She had already moved on to being with Paul. I had already agreed to give Kaitlyn a chance as my girlfriend despite the fact our relationship would be based on deceit.

How was I going to get myself out of this situation? How could I dump Kaitlyn and win Joanna back? I sighed.

After hearing me sigh, Joanna put her arm around me and said in my ear, "You were only dating me because Kaitlyn asked you to." I turned to Joanna stunned. I couldn't believe she had said that. "You were. Admit it."

"Joanna, I care deeply for you. I was waiting for the right time to tell you 'I love you'. I almost told you Sunday night. The only reason I didn't tell you was I thought you weren't ready to hear it."

I turned and looked aft again. Fuck! Ten seconds ago, I was ready to blow everything up with Kaitlyn so I could win Joanna back, and Joanna fucking tells me she didn't think I was ever fucking serious about her. I had been angry at Kaitlyn, but now I was ten times angrier at Joanna. We could have been so happy together! But she had thrown it away to be with the big doofus. What more could I have done to convince her that I really cared? I had done so much - I had showered her with compliments; I had been affectionate with her constantly and not only when I wanted sex; I had happily done whatever she had asked me to do without question; I had spent lots of time with her. I could go on and on. Mom had asked me to give Joanna a second, third and fourth chance. How many chances had I given her to understand that I really cared?

Fuck it. I felt like jumping out of the boat. I could just stand up, turn around, step up on the bench and then leap over the side. It would be a stupid thing to do, but it was no more stupi than the situation that I had gotten myself into.

I brought my hand up and covered my eyes while I tried to get my emotions under control. I wasn't going to jump out of the boat. I wasn't going to yell at Joanna. Or at Kaitlyn. What was I doing? What was I getting myself into? What did I really want? I was so confused that I wanted to tear my hair out. I kept my eyes covered until my breathing slowed.

When I removed my hand, the first thing I saw was Kaitlyn. She was looking at me with concern. Then she gave me a half-smile, a sort of You okay? look. Then she mouthed to me, "I love you."

Suddenly, things were a lot better. Kaitlyn had known exactly what to do. I sat back on the bench seat and looked aft. What was the difference between being manipulative and knowing the right thing to do? I was too emotional to think. All I knew was that I wasn't ready for any more of Joanna's honesty.

Joanna put her arm around me again, but this time very gently. I kept staring at the boat's wake. "I didn't know, Brandon. I really didn't know."

What was I supposed to do? Beat her over the head with an I care sign? Tears flowed down my face. I was so done with Joanna now. For weeks, I had poured everything into my relationship with Joanna, and she had never appreciated how I felt about her. Kaitlyn appreciated how I felt about her, how crazy she made me feel and how I couldn't resist her. And we had barely done anything as a couple. As tough as it would be to make it work, at least both of us knew we each wanted the other with our whole heart.

"Brandon, I--"

Kaitlyn cut her off by saying, "Switch with me, Joanna."

I felt and heard Joanna get up. Out of the corner of my eye, I saw her sit down in Kaitlyn's spot across from me. I kept crying while staring at the wake.

It felt so different with Kaitlyn sitting next to me, like a weight was lifted off my shoulders. I turned to her, and she gave me a dazzling smile, full of love. It hit me how much I loved her. She wanted me; Joanna didn't. It was that simple. Yes, Kaitlyn had manipulated Joanna, Paul and me. But she had wanted me, had known Joanna didn't, and had decided the end of us being together had justified the means.

Had the end justified the means? It was impossible to say at this point. Would I really be happier with Kaitlyn than with Joanna? It was going to be so hard for us to have a relationship. I was certain Joanna would do all she could to support us, but how much could she do? Even with Joanna covering for us, Kaitlyn and I would only be able to have a limited amount of romantic time together. How would we keep our love alive when we had to constantly sneak around? As much as I wanted to be with my sister, I hated how I had been forced by Kaitlyn and Joanna to make the leap of faith into a relationship which I couldn't picture working.

But I hadn't pictured my dating Joanna working. Kaitlyn had, I had trusted her and it had worked. Well, sort of worked. Now Kaitlyn was asking me to trust her again. It was much riskier this time, but the rewards could be much higher. Joanna was great, but Kaitlyn was incredible. I just wished Kaitlyn hadn't used so much manipulation to make it happen.

As much as I wanted to judge Kaitlyn on her manipulations, I decided I was past the point where I could. When I chose to give Kaitlyn a chance as my girlfriend, I implicitly endorsed all that she had done. There was no way I'd take her request seriously if she hadn't done all she had done. I didn't think she had manipulated Joanna, Paul and me the way she had because she was selfish and evil; I think she had done it because she thought we'd all be happier this way, and we wouldn't have moved into this new setup without being manipulated into it.

I looked over at Joanna. She looked small; shriveled up; sorry she had said the wrong thing. I smiled at her. She hadn't said the wrong thing; she had said the right thing. She had made things plain, and I was thankful for that.

* * * *

When we got to the water skiing spot, I wiped my face dry and turned to Kaitlyn. She asked, "You okay?"

"I'm fine now. I think I'm ready to move on."

Kaitlyn smiled.

I skied first and did much better than this morning. As I tore up the water with the wind blasting in my face, I felt exhilarated for the first times in days. I finally understood what was going on and what I wanted. I couldn't wait to be with Kaitlyn tonight.

* * * *

There was so much electricity in the air all evening that I couldn't help but wonder if my parents suspected something. I tried my best to appear as Joanna's happy boyfriend, but then I'd see Kaitlyn do something like shake out her long, beautiful hair, and I'd lose it for a few moments. Joanna would quietly laugh at me while doing her best to cover my distraction. She also gave Paul the occasional longing look. And Kaitlyn had a tough time keeping Paul's attention on her instead of Joanna. To my surprise, Joanna didn't braid Kaitlyn's hair as we sat around talking. I was so used to seeing Kaitlyn's hair braided that it looked wrong tumbling loose past her shoulders.

As soon as my parents closed the door, the girls headed to Kaitlyn's bedroom, and Paul and I moved our chairs to our usual spot. I was glad this was the last night of this; I wanted to be alone with Kaitlyn from now on and I didn't want to share her the littlest bit.

Paul said to me, "I can't wait to fuck Joanna. I'll think she'll be great in bed. She's made these evenings so exciting, so she has to be great in bed." Did he not know I knew how she was in bed? "So are you going to fuck Kaitlyn?"
What an ass. "I'm going to do whatever we decide to do. But I think that's what we're going to decide to do."

We were quiet after that. I didn't have anything to say to Paul, and I didn't give him any encouragement to keep talking. We both crossed our legs and stared at random parts of the room.

The girls were taking much longer than last night. Longer than any night. How long could it take them to take off their t-shirts and shorts and change into their gaudy outfits from last night? As time went by, the silence between Paul and I got even more uncomfortable.

Then the door opened and I instantly knew what had taken so long - Joanna had created a masterpiece hair style for Kaitlyn. Kaitlyn's luxurious honey-brown hair was braided around the top of her head so the braids looked like a crown. A couple of pieces of white silk ribbon were worked into the braids to provide contrast. Kaitlyn turned her head so I could see that the back looked like a series of little waterfalls tumbling down from the crown braid. She reached under the little waterfalls and fluffed them out to magnify the effect. I had never seen such beautiful hair. My sister may have been topless, but my eyes were on her hair the whole time she and Joanna walked into the center area.

When the girls stopped, to my surprise, it was Joanna who turned and walked towards me. I admired her one last time as I wasn't sure if Kaitlyn was officially my girlfriend yet. She wasn't wearing a beret like last night, but was otherwise dressed the same - white high heels, red panties and the shiny, wide plastic belt. Joanna gave me an embarrassed smile as she approached me. I smiled at her as she straddled my lap. I didn't know what to expect, so the kiss on the lips was a surprise.

"Are you mad at me?" asked Joanna.

After days of my emotions churning crazily, they had finally seemed to have settled down enough that I could say with some confidence how I felt about Joanna. "No, I'm not angry at you. I was, on the boat, but you're too nice of a person for me to stay angry at you."

"Good. I want to be friends when we get back home." Joanna came in for another kiss, and I kissed her back with affection. I liked Joanna, and though I knew it'd be hard to go back to being friends, I was willing to try.

"You did an incredible job with Kaitlyn's hair. She looks so beautiful. Thanks for doing that." Joanna blushed. I gave her a kiss. I knew it was a little odd, but I felt like we were burying the hatchet through sweet kisses.

"You were the best boyfriend I've ever had. Now, I kind of regret not seeing how things would have turned out."

I knew she was trying to be nice, but her statement pissed me off. She had picked Paul over me. Kaitlyn may have manipulated her into making that decision, but it was her choice, and she owned it. Regardless, I decided to be nice in return. "I think things turned out for the best. You're excited about being with Paul, and I'm excited about being with Kaitlyn."

Joanna gave me a pleased smile. "I'm glad you think that way now. Friends?"

"Friends."

We moved together for one last kiss, which we held for much longer than the other kisses. And then Joanna got off my lap, we smiled at each other once more, and she turned and walked towards Paul.

I looked across to see Kaitlyn sexily sway her body as she slowly walked towards me with a huge smile on her face, letting me drink in her beauty. Her fancy hair style added to her naturally regal air, making her look like a queen; a bare-titted queen wearing a ridiculously gaudy costume. I let my face relax into a dazed expression as I felt overwhelmed by how incredible she looked.

As soon as Kaitlyn sat down on my lap, I slid my hands from her waist to up her back as she gave me a short-but-luscious kiss. "You're the sexiest woman in the world."

Kaitlyn blushed before giving a nervous laugh. She was anxious like me, even though she was normally very confident. "Thanks. Joanna is such a great friend; she offered to go all out on my hair tonight."

"She did an incredible job." I kissed Kaitlyn. "I still can't believe I'm kissing you as my girlfriend. Brothers and sisters are supposed to fight, but I like this a lot more than fighting."

Kaitlyn laughed, relaxing a little. She came in for a kiss and as we kissed, I slid my hands down her back and then under her panties to cup her ass cheeks. Kaitlyn moaned and slid her tongue into my mouth. It was hard for me to accept that my gorgeous sister wanted to fuck me, wanted me as her boyfriend. Part of me kept expecting Kaitlyn, Joanna and Paul to burst out laughing at some point and announce that it was all a joke. But I was squeezing my sister's full, firm ass and that was no joke.

I stopped kissing Kaitlyn to tell her, "You have a great ass. I've always admired it, and it's hard for me to believe I'm holding it."

Kaitlyn wiggled her ass in my hands. "It's hard for me to believe you're holding it. I wanted this to happen; I planned for this to happen; I worked for this to happen; but it's still hard to believe it's happening."

I pulled Kaitlyn closer to me and slowly kissed my way up her neck, trying to think of something romantic to say. Nothing came to mind as my thoughts kept returning to my awe at what I was doing. When I reached the top of her neck, I whispered in her ear, "This is so crazy, yet so amazingly awesome."

Kaitlyn pulled back and looked at me with a huge twinkle in her eyes. "The night is young and will only get better."

Kaitlyn leaned in for another kiss. I pushed my tongue forward as I moved my hands up to her tits. As my hands covered them, Kaitlyn moaned into my mouth. I gave them a small squeeze, enjoying their perfect size and shape. As I played gently with Kaitlyn's tits, our tongues battled furiously; sometimes in my mouth and sometimes in hers. Kaitlyn was so damn sexy. My cock was uncomfortably hard in my shorts.

Kaitlyn broke off our kiss, grabbed my hands and put them on her ass. As I was sliding my hands into her panties again, she leaned forward and whispered in my ear. "Tonight, Joanna wants certain things to happen, and I want certain things to happen. We're completely vulnerable to Paul telling people about us, so you have to go along with what happens tonight. Okay?"

I nodded my head. "I trust you completely, Kaitlyn. I wouldn't have agreed to give you a chance as my girlfriend if I didn't." She brought her head back in front of me, smiled at me and then gave me a soft kiss.

As we started our next kiss, Joanna said loudly, "As much as I enjoy kissing, I think we're all looking forward to doing other things."

Kaitlyn got off my lap, and we both stood up and held hands. Joanna walked across the room towards where the couch and coffee table were while holding Paul's hand. I felt a twinge of jealousy. When she got there, she said, "Boys, move these chairs and the coffee table out of the way."

Joanna was clearly in charge now, so Paul and I complied with her request. Joanna tossed a towel over the two low-back, padded chairs. Joanna moved to in front of one and Kaitlyn moved to in front of the other.

Joanna said, "Okay, everyone get naked."

Paul and I slipped off our shirts and shorts while Joanna and Kaitlyn slipped off their panties. Paul and I were completely naked while the girls still had on white high heels and the plastic belts. This was my first look at Kaitlyn's pussy, and she, like Joanna, had her pussy hair trimmed way back, but not quite shaved.

Joanna sat down in one of the low-back padded chairs, and Kaitlyn followed suit in the other. I didn't know if Kaitlyn knew what Joanna had planned, or if she was just following along. Joanna moved her butt to the edge of the chair, spread her legs wide and said, "Paul, come here and eat me."

Paul got down on his knees in front of Joanna, and I did the same in front of Kaitlyn. I looked up at her, and she smiled. I took a moment to admire Kaitlyn's beauty. She had a light tan now, so the paleness of her crotch and tits provided an interesting contrast. I loved her curves, her smooth skin, her ample tits, her pretty face, and her gorgeous hair. That she was all mine to enjoy gave me a huge thrill. I gave her a smile of appreciation and moved my mouth to her pussy.

I parted Kaitlyn's pussy lips and took my first taste of her juices, causing her to moan loudly. I liked Kaitlyn's taste; it was slightly lighter than Joanna's. I slowly explored her pussy with my tongue while listening to how she reacted. She was so much louder than Joanna. Several times this week I had felt like I had been making Kaitlyn moan when I was having sex with Joanna, but it was much, much better now that I knew Kaitlyn's every moan really was because of me.

I licked down Kaitlyn's pussy, concentrating on the outer lips. Her slightly rough skin felt good on my tongue. I planned to drive her wild by licking every inch of her pussy before making her cum. I worked down one side and then lapped up the flood of juices she was producing. I moved over to the other lip and slowly licked my way up. When I got to the top, I teased her clit for a little while, testing Kaitlyn's response to different ways of stimulating her clit with my tongue. Kaitlyn had her hands on my head and ran her fingers through my hair as she continued to loudly moan.

I made another lap around Kaitlyn's pussy and went back to her clit. By then, she seemed to react the strongest when I licked the left side of her clit. Her hands were off my head now as she lay back and enjoyed me tonguing her closer and closer to an orgasm. I made another lap around her pussy before deciding the outer lips were stimulated enough, and it was time to focus on her clit.

I heard Joanna's gasps, and I knew she was cumming. I danced the tip of my tongue around the left side of Kaitlyn's clit, trying different angles to see how she responded. She seemed to respond enthusiastically to everything I did. I heard Paul get up and move to the couch. I redoubled my efforts to make Kaitlyn cum. Then she gripped my hair suddenly. I continued to flick her clit as she let out a massive "YYYEEEEESSS!" She bucked her crotch erratically as she came. I had made my sister cum! I stopped my licking but kept my face in her pussy as she continued to spasm. When she stopped, I pulled back from her pussy and wiped my face on the towel.

I looked up and saw a euphoric look on Kaitlyn's face. I smiled. She said, "That was incredible."

"Glad to have been of service."

Joanna said, "Now for the main event. Brandon, sit on the couch on the other side from Paul."

I got up and sat down next to Paul. Our hard cocks were pointing up in the air. He gave me a little grin, and then Joanna was straddling his lap facing him. Kaitlyn copied Joanna's action. Kaitlyn looked me in the eye and said, "Are you sure you want to do this?"

"Absolutely."

"Perfect. I so want this."

Kaitlyn grabbed my cock and started guiding it to her hole when suddenly Joanna grabbed my cock. Joanna said to me with a twinkle in her eye, "Let me be naughty with you one last time." With that, she guided my cock to Kaitlyn and slid the head in. Kaitlyn slowly lowered herself down onto my cock until I was completely buried in her.

Kaitlyn leaned forward, and we kissed. It was hard to kiss as we were getting bounced up and down by Paul and Joanna fucking next to us, but we did our best to keep our mouths connected. I was in no rush to fuck Kaitlyn; I wanted to savor this moment of being united for the first time.

Kaitlyn broke off the kiss and then sat upright with her hands behind her head, elbows high and to the side. She thrust out her chest for me to admire.

I said, "You look like a goddess."

Kaitlyn smiled, held the position for a few moments before leaning forward while putting her hands on my shoulders. She whispered softly in my ear, "Fuck your goddess."

I had been keeping my hands lightly on Kaitlyn's ass, but now I grabbed her firmly and bounced her up and down on my cock. I was fucking Kaitlyn! When my beautiful sister had told me last night she wanted to fuck me, it had seemed impossible; that mentioning it was a cruel joke. But it was happening now - I was sliding my cock in and out of her slick, grasping pussy, and it was heaven. I loved listening to Kaitlyn loudly moan as she impaled herself. I had never been so excited to fuck a girl and fucking her was everything I'd hope it'd be.

My butt was on the edge of the couch and I was slouched down as low as I could, so I was close to a forty-five degree angle rather than sitting straight up. Kaitlyn was at a little higher angle. As we fucked, her perfect tits danced up and down wildly. I couldn't take my eyes off of them.

Kaitlyn noticed me staring at her tits. "You like?"

"I love. Sit up straight for a moment."

Kaitlyn sat straight up in her goddess pose. She bounced straight up and down on my cock, and her tits bounced at a slightly different timing. She was so fucking beautiful. I reached up and took her tits in my hands, squeezing them lightly. They were still a wonder to me, and I still had difficulty believing that I was holding them.

I noticed movement and turned to see that Joanna was mimicking the same position as Kaitlyn. She didn't have the tits to pull it off as well as Kaitlyn, but she still looked damn good. "Having fun?" she asked me.

"Yes. Being naughty?"

Joanna laughed. "Oh yes. I've never fucked with another couple before."

Kaitlyn suddenly lean forward, resuming her position just above my body. My hands automatically resumed their position gripping her ass, and I was bouncing her up and down on my cock again. She said, "Can't fuck that way for too long."

It had looked like a lot of work. Kaitlyn was covered in sweat.

I noticed a change in movement, and I looked over to see that Joanna and Paul weren't fucking anymore. Instead, they were kissing passionately while Joanna was sitting in his lap. I guessed Paul had cum.

At the thought of cumming in Kaitlyn, I had an idea. "I want to change positions."

"Okay."

Kaitlyn got off of me. I stood up and guided her onto the couch so her chest was on the couch arm. I moved behind her and slid my cock into her. I had one leg on the ground, so I had a little more power to my thrusts than I can usually get in doggie-style. I said, "I want to be looking at your gorgeous ass when I cum in you the first time."

Kaitlyn said, "Fuck me, Brandon. Fuck me!"

I pounded Kaitlyn as hard as I could. I don't know if it was the position or what, but Kaitlyn talked to me now instead of just moaning.

"God yes! God yes! It feels so good. Fuck me, Brandon. Fuck your sister. Give it to me. Give it to me hard. Uh! Uh! Uh! Like that! Fuck me like that!"

I fucked Kaitlyn with everything I had. She was an incredible woman and an incredible sex partner. It felt so great to be fucking her, to hold her firm ass as I thrust into her over and over. My heart was pounding with exertion and excitement.

"Oh, God! Oh, God! I love it! I love it!"

I loved it too. The pleasure was so intense that I knew I wasn't going to last much longer. I continued fucking Kaitlyn hard, savoring every thrust. She was now only making low grunts. We were both soaked with sweat. I could feel myself getting closer and closer to the edge. Finally, I went over. I felt an explosion of pleasure and then was cumming in Kaitlyn. I felt so good to squirt load after load into her. I slowed steadily as each spurt got smaller until I finally stopped. Keeping my cock inside of her, I sat down on the couch while twisting and lifting Kaitlyn so she was sitting on my lap again, only this time facing away. I pulled her close and gave her a kiss on her cheek.

"That was incredible," I panted out.

As I caught my breath, I looked over at Paul and Joanna. They were in the same position I had last seen them in, but now they were watching Kaitlyn and me. They must have been watching us for quite a while. Joanna caught my eye, and I blushed.

Joanna said calmly, "Paul and I had a great start to our relationship. How about you?"

"Yes!" Kaitlyn and I both enthusiastically gasped out.

Joanna looked at Paul. "Kaitlyn and I are going to sublease an apartment for the rest of the summer, so we'll have plenty of privacy. Are you okay with that?"

Paul said, "More than okay; I think that'd be wonderful!"

Joanna said, "Good. Kaitlyn wants to ask you a huge favor. Would you be willing to pretend to keep dating Kaitlyn for the rest of the summer? When you're in town to visit me, we'll double date as if Brandon was still dating me and you were still dating Kaitlyn, but when we get back to our apartment we'll go back to our real partners."

Paul asked, "Would we continue to make out together like we have? Would we continue to swap partners back-and-forth as we make out?"

From the way Paul said that, he was hoping the answer to both would be yes. Before I could say no, Kaitlyn said, "Let me discuss it with Brandon first. It's a possibility."

Paul said, "I hope we will. If we do, I'll help with the rent. Regardless, I'm willing to go along with your plan for the rest of the summer."

Kaitlyn said, "Thank you, Paul. That means so much to Brandon and me."

Joanna said to Paul, "And you promise to not say anything to anyone about Kaitlyn and Brandon being a couple, or that you're dating me instead of her now?"

Paul nodded his head. "I promise."

"Great!" said Joanna. She leaned forward and kissed Paul. Kaitlyn thanked him again, and I added my thanks.

Kaitlyn lifted herself off of my cock. I slid my butt away from her to give her better access to the towel. She yanked it out from underneath me and held it to her crotch as she stood up. She moved back, and I got off the couch. Joanna and Paul had done the same. As Paul and I reset the coffee table and chairs, Kaitlyn said to Joanna, "Remember to set an alarm so we swap rooms before my mom wakes up." Everyone gathered up their clothes, Kaitlyn grabbed some stuff from her room as Joanna grabbed stuff from mine, and then Kaitlyn and I went to my room.

Kaitlyn checked the time and said with a big smile, "We have time for another fuck."

I got into bed, and Kaitlyn followed me. We were soon kissing with me on my back, Kaitlyn's hand stroking my cock and me squeezing a tit. Once I was hard, Kaitlyn mounted me and we had another spirited fuck.

Once we were done, Kaitlyn snuggled on me, putting her head on my shoulder, pressing her wonderful naked body against mine.

"Happy?" I asked.

"Very happy," Kaitlyn said before giving me a quick kiss. "Are you okay with Joanna and me getting an apartment together?"

I was a little surprised at the question. "I think it's great. I didn't know how we would be able to be alone together, and now it'll be easy."

"How did things go at the beginning when you and Joanna were together?"

"Fine. I'm still a bit bitter about her dumping me for Paul, but she's such a sweet, caring person that I couldn't be angry with her. We agreed to be friends."

"Perfect. I'm glad you and Joanna made up. Would you like to move in with Joanna and me?"

"Would I?" I laughed with joy. "I'd love it." I hugged Kaitlyn, savoring the feeling of her naked body on mine. "I love you, Kaitlyn. You're the sexiest, most wonderful woman I know, and I'm very, very happy you're mine." I gave her a kiss.

"Okay. I haven't discussed you moving in with Joanna yet, but I'm confident she'll agree. She was great tonight. She got Paul to agree to everything I wanted. I feel so much safer now."

"Me too. I feel so much better about everything now."

Kaitlyn lifted herself off of me and lifted up her head so she could see my face clearly. "When you move in with us, you have to be friends with Joanna. Not just tolerate her or get along with her. You have to be friends."
"I think we can be friends. It'll be a little awkward living with a former girlfriend, but I think because she's so nice that she'll be very easy to live with."

"Great!" Kaitlyn said as she lowered her head back to my shoulder. "I've pushed her for so much the last few days, so I'm going to hold off on asking about you living with us until the right moment." Kaitlyn popped off my shoulder to give me a kiss. "Good night. I love you."

"Good night. I love you too."

* * * *

Too early, I awoke to the sound of Kaitlyn's phone vibrating. She turned it off and said, "Good morning."

"Good morning."

"I love you." Kaitlyn kissed me. "It feels so great to say that."

"I love you too." I kissed Kaitlyn. "And I love telling you that I love you."

We kissed and cuddled for a few moments before I heard the door open. Joanna, wearing a nightshirt, slipped into our room. Kaitlyn was naked and the covers were down far enough that Joanna could see her tits in the early morning light. Kaitlyn snuggled on me for a few more moments before she got out of bed, pulled on a bikini, and left the room. Joanna always wore a nightshirt to make breakfast whereas Kaitlyn always wore a bikini. I assumed it was because Kaitlyn wanted more support than a nightshirt provided while she was cooking.

I was so happy that I felt like I was glowing. It had been so awesome to wake up with Kaitlyn and to have cuddled and kissed her to start the day.

Joanna sat on my bed and looked towards the door. It was probably ten or fifteen minutes until Mom knocked on the door and Joanna could leave. I noticed Joanna looked tense. I asked quietly, "Good time last night?"

"Yes," Joanna grumbled.

"Everything okay?"

Joanna spat out, "Everything's fine."

I was reminded of a video I had seen on Facebook for the "Manslater" - a device which translates women's words into something a guy could understand. I had no idea why Joanna was saying one thing when her tone and body language screamed the opposite. I had never seen her this way before. Because she was so important to mine and Kaitlyn's plans, I was even more concerned. But at the same time, talking to Joanna seemed to make things worse. I wound up casually watching her while acting like I was trying to go back to sleep. At one point, I heard her mutter, "That bitch." Was she angry at Kaitlyn? How could she be angry at Kaitlyn? Eventually, the knock on the door came and Joanna left the room.

When I came out for breakfast, Joanna was still in a bad mood. Mom had an air of concern and looked at me in a quiet plea for explanation. I looked away; I would have said something to Mom if I had some idea of what was going on, but I was clueless. When Paul came out, he looked at Joanna and seemed embarrassed, but didn't say anything. The only person who spoke to her was Kaitlyn, who bantered with her in such a caring way that Joanna slowly lightened up.

When we got in the ski boat, Kaitlyn said, "I don't feel like skiing this morning so I'll drive and let everyone else ski."

The rest of us mumbled agreement.

Kaitlyn said, "Joanna, would you be lookout for me?"

Joanna sat down next to Kaitlyn. The whole morning, Kaitlyn drove, and Joanna was supposed to act as lookout but instead stared at the water. At least she wasn't angry now, a big improvement. She didn't say anything, and Kaitlyn would occasionally say something to her in a supportive manner. I sat behind her and did lookout duties when I wasn't skiing. Mom and Dad would look at her apprehensively from time to time, but the four of us skiing tried to focus on having a good time.

* * * *

After lunch, the four of us headed to our usual spots for Mom and Dad's "nap". As soon as Kaitlyn, Joanna and I sat down on the chaise lounges, Kaitlyn asked Joanna, "Do you want to talk privately with Brandon?" Joanna nodded her agreement. "Go back to the mud room. I doubt Paul will notice you're gone. If he does, I'll do my best to distract him."

"Thanks," said Joanna in a small voice. Kaitlyn wiggled her hand to me, telling me to get up and go with Joanna.

Once we got in the mud room, Joanna said, "I'm going to ask you a question, a really important one. I know a lot has changed between us, but please answer it honestly."

"Okay." I wondered what the question could be.

"After we had sex at your parents on the night before we left for the lake, if I had told you 'I love you', what would you have done?"

I had no idea why my feelings from a week ago were important to Joanna now. It was all spilt milk under the bridge now. Still, I decided to be honest. "I would have said, 'I love you too.'"

"Shit!" Joanna said in quiet fury. "I'm such an idiot. And would you have meant it?" Before I could respond, she said, "Of course you would have meant it! You don't say things you don't mean. I'm such a moron. Such a fucking...moron. I'm so much my mother's child."

Just when I thought this week couldn't get any weirder. I couldn't think of anything that would explain Joanna's behavior. Part of me felt I should be angry at Joanna for asking if I loved her after she had dumped me for Paul, but I couldn't be angry at her - so much had happened that I couldn't process another emotional surprise.

I said, "Let's sit down, Joanna."

I sat down on the cement slab and leaned my back against the washing machine. After a second, Joanna joined me. She seemed to be working out what to say next. I waited, hoping it wouldn't be another crazy question.

Joanna said, "Okay. I'm going to ask you another really important question. Please think it through and give me a totally honest answer. All right?"

"All right."

"Would you consider taking me back if I promised to be totally committed to you?"

I was surprised. I was stunned. Of all the crazy things that had happened this week, this was the craziest.

"I'm with Kaitlyn now!"

"Let's say Paul and Kaitlyn are out of the picture. While we've talked, a tidal wave has swept them away. If it was just you and me, would you be willing to talk about taking me back? Or have I screwed things up so bad that you'd never consider it?"

My first reaction was to say Fuck no! You dumped me for someone else! I'll never trust you again. But I couldn't be that mean to Joanna. She was a super nice person. She had done so much for Kaitlyn and me. I wanted her to be happy. I had no idea what she wanted, but the least I could do was to not tell her to go to hell.

"I'd be open to talking about it."

"You would?" said Joanna excitedly. "Oh my god! That's great. This is so crazy. You think I'm crazy, don't you?"

I struggled not to laugh. "Joanna, calm down. I've always liked you. I've had a great time with you this summer. And thanks to you, I'm with Kaitlyn now, which I'm very happy about." I hoped that would put her at ease while making it clear I was not taking her back.

"Okay. When Kaitlyn saw I was upset this morning, do you know what she said to me?"

"No idea." I had no fucking idea whatsoever. This weekend had been too crazy for my limited imagination.

"She told me I was her best friend, and she wanted me to be happy. She told me to think through what would make me happy, and she'd support me. So I've spent the whole morning thinking through what would make me happy."

That sounded like a good idea. "And what would make you happy?"

Joanna held up her hand. "Let me start at the beginning. It won't make sense otherwise."

"Okay," I said dubiously.

"Before you came home from college, I was in a bad relationship that destroyed my self-confidence. Kaitlyn said I needed to have you as my boyfriend for the summer to learn how a boyfriend should treat me; to trust you and not hold back; to have sex with you when you felt we were ready to have sex."

"And we started dating."

"Hold it. Let me add that I've always had a crush on you. And it hurt that you always dated another of Kaitlyn's friends and never showed interest in me."

"We were never good at conversation. That was why I asked Kaitlyn to go out with us. And with Kaitlyn being a third-wheel, I had a great time with you. Things took off between us pretty quickly." And now we were much better at conversing when Kaitlyn wasn't around.

"But I couldn't accept that you actually liked me. I thought you were only going out with me because Kaitlyn had asked you to."

Joanna had brought up the big mystery of our relationship. "Why?"

"A number of reasons. I've seen how Kaitlyn can manipulate people. She could have convinced you that I needed to believe you were dating me because you liked me, even though you were doing it only as a favor to her."

I hadn't considered that possibility.

"It never made sense to me that you suddenly found me so wonderful after years of not being attracted to me. And...you don't understand what it's like to be in the self-destructive cycle I was in. Kaitlyn doesn't understand it either. I am my mother's child, and I understand now why she always dates losers. I honestly thought that a great guy like you wouldn't be interested in me. I wasn't good enough for you."

I wanted to wrap Joanna in my arms. "Joanna, you're a wond-"

"No, I'm not. Not in my mind. If I was a wonderful person, my boyfriends would have treated me better. I've never had a dad to tell me I'm wonderful. You've got a family that loves you and tells you you're wonderful whenever you're going through a tough time. I've only had Kaitlyn. In my mind, great guys like you would never date me; only losers would. So I looked for the best loser I could find."

Tears were running down Joanna's face. I couldn't take it anymore. "Come here," I said, indicating she should move between my legs with her back to me. Once she did, I wrapped her in my arms and held her close to my chest. I realized I still cared deeply for her. I held Joanna for a while. I could see the tears drop off of her face. After a while, the drops finally stopped. "Can you tell me what you want to tell me like this?"

"Yeah. Thanks, Brandon." She relaxed back against me. It felt good to hold her again, which made me feel a little guilty. "After we had dated a while, I started considering the idea that you were dating me because you liked me, but I couldn't accept it because it'd make me too vulnerable. If I had accepted it, I'd have fallen head-over-heels in love with you. And what if at the end of the summer, you had said, 'Ta-ta, Joanna. I fulfilled my promise to Kaitlyn, and now it's time for me to date a girl I really like'? That would have crushed me. When you date a loser, it doesn't hurt a lot to break up because there are plenty of other losers. That's always protected me emotionally. There would have been no protection from you."

Joanna was being so open, so honest. I felt myself being sucked into caring for her more than I should.

Joanna continued, "So, Friday, at your parents', snuggling on you after we had sex with you saying great things to me, I thought for the first time, 'This is what love feels like.' I almost said 'I love you', but I chickened out. We hadn't dated long enough for us to fall in love; you wouldn't fall for a girl like me; what if I said 'I love you' and you didn't love me? I decided to wait until you said you wanted to keep dating at college before saying 'I love you'."

So, because neither of us spoke up, we both let our relationship slip away. I had wondered what I needed to do to convince Joanna that I cared for her, and the answer apparently was to commit to her long-term. I had wanted her to say I love you before talking about long-term.

Joanna said, "I don't know why I told you to kiss Kaitlyn's neck. That was what really started everything, wasn't it?"

"Yeah, it was."

"I sat down on Paul's lap to keep him from interrupting. To my surprise instead of being angry about you kissing on Kaitlyn's neck, he flirted with me. Nothing outrageous. 'I like you, Joanna. Brandon's a lucky guy to have you as a girlfriend.' You've said much nicer things, but hearing them from Paul hit me hard. Whereas I had every reason to doubt your sincerity, my best friend's boyfriend was taking a huge risk to say nice things to me. They really made me feel great."

Some jealousy flared. "You didn't tell me he flirted with you."

"It was harmless stuff, and I didn't want to cause a scene. Besides, it helped to make me hot and horny. I found making out in front of Kaitlyn and Paul exciting, and then his compliments got me even more excited. The sex was great that night."

"It was." I smiled at the happy memory. "I almost told you that night I loved you."

"You did? I wish you had," Joanna said wistfully. Then she added in a tone of quiet exasperation, "Or maybe it was better that you didn't. I don't know anymore."

I gave Joanna a hug. "It's okay. Things turned out for the best."

"The next night when I sat on Paul's lap, he was bolder with his flirts; telling me I was very pretty and had a great body, that I looked great in a bikini. And he told me several times it was boring to watch you with Kaitlyn, and that it was unfair Kaitlyn was having you do stuff to get her excited, but I wasn't doing anything to get him excited. He had made me feel so good that I decided to do something to get him excited. I found it a lot of fun to put on a show for him, and I didn't think it was cheating or anything; Kaitlyn was giving you the same show. I was being naughty, but in an exciting way. You know how much I enjoy being naughty."

"I do." I sighed. "And I've enjoyed having a naughty girl. Did you have any idea you were pushing Kaitlyn and me together?"

"None. And I wasn't trying to get Paul interested in me."

But Kaitlyn wanted Paul to be interested in you.

"The next morning, I wound up walking with Paul, and he thanked me for the show. He said jokingly that he should buy me a thank-you present. And he started asking what I'd like. A pretty dress? Some lingerie?" Joanna sighed. "One thing I was envious of, when Kaitlyn was dating Paul, was the money he spent on her. You never spent much money on me. My loser boyfriends spent a lot more money on me than you did. It wasn't a big deal, but it was a sore point. And Paul was suddenly pressing on it."

I subtly coached him on how to woo her.
I know her every weakness, and I used them all against her to get her to give up a great guy because I wanted him too.

I said, "My butt's getting sore. How about we stand up for a while?"

"Okay."

As I stood up, I thought about how I really didn't like Kaitlyn's manipulations, even if I liked the end result.

I leaned against the washing machine as Joanna began pacing, looking down as she continued talking. "When Kaitlyn announced she was thinking of breaking up with Paul, I wasn't surprised. When she asked for help to teach Paul how to act to try to save their relationship, I couldn't really refuse her - she's helped me through so many bad times. It didn't take a lot of persuasion to get me to agree to kiss Paul while she kissed you. I thought you'd be okay with me kissing Paul if you got to kiss Kaitlyn at the same time. I knew Kaitlyn wanted to kiss you; I suspected you wanted to kiss her; and I thought you'd like to have permission. It took a lot more persuasion to get me to agree to let Paul feel my tits while you were kissing on Kaitlyn's neck..." My suspicions had been right! "...but Kaitlyn swore it was the only incentive that would get Paul to act the way she wanted him to act." I felt a flash of anger at these revelations. Kaitlyn's manipulations were really pissing me off. "When I told Paul the plan to give him some 'lessons', he was all for it."

And why wouldn't he be? Given that he and Kaitlyn were fed up with each other, I could see making out with Joanna would hold a lot more appeal than making out with Kaitlyn.

Joanna continued making the same circuit in front of me over and over. "The next day, Paul and I were on the same jet ski for a long while. The whole time, he asked me about what dresses I liked and what lingerie I liked. He knows a lot about both. And then he'd started saying, 'If you were my girlfriend, I'd buy you this. If you were my girlfriend, I'd buy you that. If you were my girlfriend, I'd take you to this expensive restaurant.' It was like he was telling me what he'd give me if I'd break up with you and become his girlfriend. That night, when you were giving Kaitlyn neck kisses, Paul kept saying 'If you let me feel your tits in front of Brandon, I'll buy you something really nice.'" Joanna sighed. "And I agreed. I didn't feel like I was cheating on you because you got to feel Kaitlyn's tits. And when you kissed Kaitlyn, I let Paul kiss me. I viewed it as us having a great time being crazy naughty. I was so damned excited when we stopped."

I wondered What's the point? Why is she telling me this? I asked, "Why didn't it disgust you to see a brother and sister making out?"

Joanna sighed. "Kaitlyn is my best friend. I love her more than anyone, and there's nothing I won't do for her. I've never judged Kaitlyn, and she's never judged me." Joanna paused for a bit. "So years ago when she started sharing things that indicated the she had a little crush on you, I pushed aside any thoughts of revulsion and focused on how much she trusted me to share those kind of feelings. I teased her about having a crush on her brother instead of moralizing about it. This week when she wanted to make out with you, I shrugged it off and went along. When she said she wanted you as her boyfriend, I tried to talk her out of it because it would be so hard for you two to be a couple. But I didn't judge her, and I swallowed whatever disgust I may have felt. She's the sole reason I dated you, and though I wasn't prepared to date someone as wonderful as you are, it was a great experience for me. You really built me up and showed me how I should be treated by a boyfriend. I want Kaitlyn to be happy just like she wants me to be happy, and I'll fully support anything she does to be happy." I nodded my head, accepting her explanation. "Back to my story - the next day, when Kaitlyn and I went to the store, she brought up switching. She said it jokingly at first, but after a while it was obvious she was serious. We talked about it for a long time. What convinced me to agree was when she said that if I couldn't accept that you were dating me because you wanted to date me, then I should date someone who I felt truly wanted to date me."

Don't blame Joanna for anything that happened. It was all because of me.

Joanna paused and looked a little embarrassed. "I was comfortable with the idea of dating Paul. Kaitlyn clearly didn't ask him to go after me. Even though he's a big nerd, he's a sweet and generous guy who stands by what he says. He's a big step up from the losers I've dated, but not too big. And he wanted me badly, something I never felt from you. And if we lasted until the end of the summer, I'd have lots of nice clothes from the experience."

She never felt I wanted her badly? I...it was pointless to get upset about. I said, "As you said on the boat, loyalty played a factor."

"It did, but the biggest factor was that I felt like you deserved and wanted someone better than me, and that was Kaitlyn. I felt like we would all be better off in the new arrangement. Kaitlyn asked me to think about it and let her know what I wanted to do in the morning. Everything that happened that night reinforced my feelings."

My anger at Kaitlyn's manipulations went up another notch. I thought back to that night. I hadn't understood at the time why Kaitlyn had been so much more aggressive, but I realized she knew the switch was coming and was doing her best to convince me I'd enjoy it. "So you told Paul you wanted to switch, and then you and Kaitlyn had a very interesting way of convincing me to switch."
Joanna blushed before smiling. "That was so incredibly naughty. I had never watched another couple have sex before. When you let Kaitlyn suck you off, I thought everyone would be much happier from then on."

Then it hit me why I alone had such a hard time with the switch. They all thought they were better off after the switch. As much as I thought Kaitlyn was awesome and we'd be happy together, I still wasn't sure how it was going to work. It was a leap of faith I still wasn't fully comfortable with. And to make that leap, I had to leave behind a relationship I had been very happy in.

Joanna said sadly, "But you weren't as excited about making the switch as I had hoped you'd be. On the boat, you told me you cared deeply for me, and I believed you. I began to doubt the wisdom of the switch. I was thinking of asking you what you'd think of calling it off, but then Kaitlyn asked me to switch places with her."

That would have been crazy - trying to have a conversation about who should be with whom in front of our parents. "And you did. And that was when I accepted things were over between us, and I was probably better off with Kaitlyn." I was glad Joanna had had second thoughts about dumping me for Paul, but the memory of Joanna going to Paul after I had told her that I had loved her still hurt. "What's the point of this talk?"

"Let me finish. You know what happened last night. Paul and I went to his bedroom. I knew from Kaitlyn that he was a one-and-done guy, so I was all ready to cuddle and say what a great night it was and how happy I was to be his girl." Joanna's tone got angrier and angrier as she talked. "Then he pulled out his fucking tablet and started playing his stupid fucking game. He told me to go to sleep because he'd be playing for a while. I was furious. I tried to convince him to cuddle and make out, but he was already into his game." Joanna's hands were curled into claws. "This morning, we woke up early and I was ready to get in a little cuddling before we switched rooms. Right after he kissed me, he reached for his fucking tablet again. I realized that dating Paul meant accepting second place to his stupid fucking game."

I almost wanted to laugh. Paul's behavior was totally consistent with how he'd acted the whole week. I guessed when he and Kaitlyn were at college, he had always gone back to his dorm room after they had sex. It was only when he started staying the weekends this summer, and he had done the same thing to her that their relationship had gone downhill.

Joanna continued in a furious tone, "So I put on my nightshirt and went over to our bedroom. And there was Kaitlyn snuggling against you with a big shit-eating grin on her face. She had known what had happened and could tell I was furious. I was pissed but I was in an awful situation - I had committed to being in a relationship for the summer that I suddenly didn't want to be in."

"You wanted to break up with Paul?" That'd be one damn short relationship.

"Let me get to that. I sat on the bed and seethed until it was time to go out to make breakfast. Kaitlyn saw how upset I was, and that was when she told me that I was her best friend, that she wanted me to be happy, and I should think about what would make me happy. I had made a bad choice, and I felt like she'd help me fix things if I made a better choice, but I had to be absolutely sure this time that it was making the right decision."

Joanna had made a bad choice because Kaitlyn had manipulated her into it. I was fed up with Kaitlyn's manipulations. Did I really want as a girlfriend someone who was so manipulative? Would I ever be able to trust her? Would I always have to be on my guard for her next harebrained scheme? "Joanna, Kaitlyn has manipulated you, me and Paul a tremendous amount. She decided Monday night she wanted me as her boyfriend, and she's pulled all of our strings since then to make it happen."

Joanna laughed. "So? You think I hadn't figured that out already?"

I was stunned by her reaction.

Joanna smiled at my amazement. "Brandon, everyone tries to manipulate. Paul worked hard to convince me to break up with you and become his girlfriend. Until last night, I was trying to convince you to commit to our relationship long-term. You were trying to convince me to stop swapping back and forth even though I was enjoying it so much. Kaitlyn's just better at it than everyone else. And manipulations don't really matter."

I was even more stunned. "What do you mean? Certainly they matter."

"No, they don't. Look, Paul chose to go after me even though I was your girlfriend. I chose to switch boyfriends. You chose to have Kaitlyn as your girlfriend. All of those things were what Kaitlyn wanted. She pushed some buttons, polished some apples, and gently prodded some backsides. But she didn't lie to us; she didn't put a gun to our heads. All of those were our choices. And we decided as we did because what Kaitlyn wanted us to choose was what we wanted the most. Those choices are our responsibility, not Kaitlyn's."

This was not an argument I ever expected to hear. "Joanna, you said a little while ago that the biggest reason you couldn't accept that I cared for you was that you thought Kaitlyn was manipulating me into saying I was going out with because I liked you."

"Yeah, but...Look, I've been best friends with Kaitlyn for six years. I made my peace with her manipulative habits long ago. Even so, there was one area I told Kaitlyn to not manipulate me, and that was on my love life. I didn't want her to try to pair me up with someone, to try to help my relationship with my boyfriend, to try to improve my boyfriend. My love life was mine and mine alone. And what happened?"

We both knew what had happened. "Ummm..."

"I dated a bunch of losers, that's what happened. My love life made me miserable. And after the last loser made me feel worse than dog shit, I finally gave up. I told Kaitlyn to work her magic. And, Boom!, I had you as my boyfriend."

"Kaitlyn asked me to go out with you. She didn't manipulate me into it."

Joanna rolled her eyes. "Yeah, right," she said in ironic disgust. Then she went back to being serious. "And you were a great boyfriend, the best boyfriend I ever had. So good, that I couldn't handle it." Joanna pointed her finger accusingly at me. "The problem wasn't that Kaitlyn manipulated us to bring us together. The problem was we're all programmed to reject manipulation. We'll refuse to do something we feel that we've been manipulated to do, even if it makes sense to do it. Kaitlyn's a good person; she wants what's best for people. She totally wants what's best for me. My relationship with you failed not because of her manipulations, but because I didn't trust her enough."

I had never seen Joanna this fierce. The look on her face reminded me of a momma bear protecting her cubs. My heart was pounding. We were breathing heavily. Joanna and I had never had a conversation this intense before. She had always been so fun-loving and easy-going. There were depths to her that I hadn't seen before.

Joanna suddenly looked embarrassed by her prior intensity. She had been bent forward close to me, and now she stood up. "Where was I in telling you about my week? Oh, yeah. So I spent the morning deciding what made me happy. I decided that the one good thing about Paul and I getting together was that I felt much better about myself, that I could see myself as someone who'd appeal to a great guy like you. And I realized that what would make me happy was you - I had a great time with you; I had a great time doing things with you and Kaitlyn; and I wanted to go back to the way things were before this week."

I shook my head in disbelief. To me - this made things even sadder. It was over between Joanna and me, and I had moved on to Kaitlyn.

Joanna finished, "So would you be willing to take me back? I'm ready to accept that you really do care for me. I think I'm mentally ready to make our relationship work; to be very happy as your girlfriend."

My jaw dropped. This was nuts. Just when I thought things had been settled, it turned the craziest of all. "What about Kaitlyn?"

"What about her? She can't date you; she's your sister. She enjoyed going out with the two of us of during the week."

What the hell? Was she imagining we'd all pretend this week had been a dream? "Are you expecting her to get back together with Paul?"

"No. Not at all. They are done." Thank God she was now talking some sense. "Last night at one point, Paul took a break from his game to dump all over Kaitlyn. He bitched about how she hadn't appreciated all the things he had done for her and how she had complained all the time. That relationship is toast." That was disconcerting - Kaitlyn and I needed Paul's silence and it sounded like it wouldn't take much for him to decide to strike back at Kaitlyn. "Hey, don't worry - I'll keep Paul under control." It was like she had read my thoughts. "When Paul comes to visit, Kaitlyn is his girlfriend in public, but I'm his girlfriend in private. All four of us will do things during the evening as friends, but at night I'll fuck him and sleep with him. It's what I promised Kaitlyn I'd do for the rest of the summer, and it's what I'm going to do."

This made me feel better, but it was a direct contradiction of what Joanna said before.

Joanna grabbed my hand, squeezed it and let it go. "And I'm going to do it for you too. When we were on the boat today, I finally accepted how much I care for you. I want you to be happy, and I know that safely being in a relationship with Kaitlyn is what will make you the happiest."

My emotions were churning again. "None of this makes any sense, Joanna."

"I'm not being clear." She paused and collected her thoughts for a moment. "Let me tell exactly you what I want. When we get back, Kaitlyn, you and I sublet a two bedroom apartment for the rest of the summer." Kaitlyn had the same idea last night. "You and I move into one bedroom as boyfriend and girlfriend, and Kaitlyn moves into the other bedroom. During the week, you're my boyfriend, and things go back to the way they were before this week. When Paul shows up, I'm his girlfriend and Kaitlyn is yours, though we don't act that way in public. At night, we continue swapping back and forth as that's a lot of fun, but I'm the one he fucks and sleeps with."

There it was - the craziest thing out of the craziest week of my life. Joanna wanted to be my girlfriend during the week and for Kaitlyn to be my girlfriend on the weekend while Joanna was Paul's girlfriend? What the fuck? Love isn't something you can just switch on and off. Kaitlyn would always be my girlfriend, seven days a week.

I said the first thing that came to mind to shoot down the idea. "Why would Paul agree to this?"

"Paul's not going to. As far as he'll know, when he's gone I'm his faithful girlfriend."

"Okay." A mean thing to do. Then I remembered how he had hit on Joanna while I was nearby and suddenly cuckolding him really appealed to me. "Why would Kaitlyn agree to your idea?"

"She doesn't have any better choice, does she? As open-minded as your parents are, they aren't going to let you and Kaitlyn sleep together. Nor are they going to approve of you two renting an apartment together for the summer when you have two bedrooms at their house. She'll get a half a loaf, but that's better than nothing."

Half a loaf! Oh my god!

Joanna sighed. "I know I'm not going to get you as much as I want, that Kaitlyn will want you at least one night during the week. And I know this sounds crazy, but I think it's the best solution for the three of us."

Suddenly, I saw things Kaitlyn had said to me in a whole new light. "And I'd have to be open to doing whatever it takes to make it work." Quoting what Kaitlyn had told me at the end when we agreed to be a couple.

"Exactly! So would you be willing take me back under those conditions?"

I wanted to shout No! No! No! I loved Kaitlyn and I only wanted to be with her. Joanna had dumped me for Paul, and now she wanted me to take her back so she and Kaitlyn could be my tag-team girlfriends? It was too ridiculous to even contemplate.

Then it struck me - I was here listening to this crazy proposal because of Kaitlyn, a master manipulator who knew Joanna inside out. Had Kaitlyn known this was what Joanna was going to propose when she sent me off to talk with Joanna? Kaitlyn was too smart to not have had an endgame in mind before she started down the path of bringing us together. She had known we couldn't live together as a couple. After she rejected the idea of us running off together, had she envisioned the solution that Joanna had proposed? Was this the half a loaf she had decided upon? Had she prepped me to accept this because, as Joanna had pointed out, there wasn't anything better? Was this even that bad from Kaitlyn's point of view? She'd spend lots of time with her best friend, and Joanna would be happy. The three of us would continue to have fun evenings together during the week.

I needed more information before I made any decision. I asked Joanna, "You're not willing to be a third wheel on dates between Kaitlyn and me like Kaitlyn was for you?"

"No," Joanna said firmly. "It'd hurt like hell to see you two so happy together while I was stuck with Paul."

I felt like Joanna was blackmailing me - take me back or I might not be able to make it through the full summer with Paul. And an unhappy Paul would blab to everyone about Kaitlyn and me.

Why was Paul even involved? Why hadn't Kaitlyn come to Joanna and me, and said she wanted to share me with Joanna?

Because I would have said no. I would have laughed at her. The idea that I'd get involved with my sister while I was in a happy relationship with Joanna would have been ridiculous. And the need to share would have made it seem even more ridiculous.

Did Kaitlyn really want to share me with Joanna? I played back our conversation in the mud room. She had said that when she saw me sucking on Joanna's tits, she had been insanely jealous and had at that moment realized she wanted me as her boyfriend. So when would she have come up with the idea of sharing me with Joanna? Kaitlyn had to have suspected that Paul's gaming addiction would piss Joanna off, but Joanna had to become Paul's girlfriend for Kaitlyn to be able to be my girlfriend. The more Joanna was willing to make sacrifices for Kaitlyn, the worse Kaitlyn would feel about dumping Paul on her best friend. So when Kaitlyn pulled off the switch, she did it in such a way that the door would be open for Joanna to come back to me if that was what she wanted.

But Kaitlyn hadn't given me any hints as to what she was thinking. Why? I came up with two related ideas. One was Kaitlyn was a fair person, and she wanted to give Paul a fair chance at making his relationship with Joanna work. She coached him and put him into the perfect situation. All he had had to do was to not reach for his tablet, and Joanna would have been perfectly happy as his girlfriend. The other was Kaitlyn hadn't known what would happen. Maybe Paul learns from Kaitlyn's complaining and doesn't reach for his tablet. Or maybe Joanna isn't bothered by Paul's game playing. Or maybe it bothers her only a little bit, and she was willing to overlook it given all the other benefits of dating Paul. So Kaitlyn steered Joanna and me towards her preferred solution without saying anything in case Paul and Joanna did hit it off.

Part of me wanted to reject the whole idea. Kaitlyn was manipulating Joanna and me again, even though she wasn't here. The thought of being manipulated made me angry.

But as Joanna said, did it really matter that Kaitlyn was manipulating us? Was it important? Wasn't what was important was the arrangement Joanna was proposing? Joanna had chosen to make this proposal. It was what she wanted. How she came to make this proposal really wasn't germane to my consideration of it. Similarly, I should decide on her proposal based on what I thought was best and not on how I thought Kaitlyn got me into this discussion.

The more I thought through things, the more I saw the advantages of being shared by Joanna and Kaitlyn. Mom had talked to me every day while I was dating Joanna. I had told her about Kaitlyn going out with us, and she had accepted that as perfectly normal. My sister, my girlfriend's long-time best friend, made perfect sense as a third wheel. As long as I was publicly in love in Joanna, the occasional night out with only Kaitlyn would probably pass without notice. We could explain away Kaitlyn living with Joanna and me at college as minimizing living expenses for the financially-strapped Joanna. The best way for Kaitlyn and me to be together was for me to continue having Joanna as my girlfriend.

I returned from my thoughts to see Joanna looking anxiously at me. I smiled at her. I needed to tell her I was taking her back in a way that said I really wanted her back, and that I wasn't taking her back because she was blackmailing me or because it's what I needed to do to cover up my relationship with Kaitlyn. I said, "Joanna, let's sit on the floor again." I sat down on the cement with my back to the washer, and I guided Joanna so her back was against mine again. Joanna felt tense. I said in a slightly joking tone, "One thing I've realized this week is that I'm an idiot."

"You're not an idiot," said Joanna, quickly rising to my defense.

"I'm more observant than Paul, but I'm not observant enough. This whole week, I've missed what was going on around me, and I've misjudged people I thought I knew well. Now, you're proposing I take you back and have both you and Kaitlyn as my girlfriends. The rational part of my brain screams to say no."

"Are you saying no?" Joanna asked uncertainly.

"I'm going to rely on the advice of someone older and wiser than me. My mom talked to me yesterday at lunch, and she told me she had gotten to know you well over the last six years and thought the world of you."

Joanna turned and looked at me. "She said that?"

I nodded. "Oh yes. She told me she saw you as the type of person who could decide every day to be totally committed to the one she loved, and that you are worth persevering for." Tears started running down Joanna's face. "She told me to give you a second chance, and a third chance, and a fourth chance before making a decision I'd probably regret later."

Joanna's jaw dropped. "She really said that about me?"

"Yes. And you are worth persevering for. I want you back, Joanna."

"I'm not going to need a third chance!" Joanna laughed with joy and moved to kiss me, but stopped just short of my lips and pulled back. "No kissing until Kaitlyn and I agree on sharing you."

"Nothing changes between you and me until Kaitlyn agrees to sharing, and you two agree as to how it will work."

Joanna nodded her agreement and stood up. "I'll go talk to Kaitlyn now."

I smiled at Joanna. "Best of luck with her."

Joanna smiled. "Thanks." She started to leave, but stopped to look down at me. She pointed to her lips and said, "I'll keep this kiss right here for when she does agree."

I laughed, and then she was gone.

* * * *

Epilogue
I finally got the text I had been waiting for, Come home. I had spent Friday and Saturday night camping out at a local park so Paul could have the girls to himself. Last weekend, Joanna had told him she was breaking up with him, but had offered him a weekend of sex with her and Kaitlyn if he promised to keep our secrets forever. He had happily taken the deal. I didn't like the idea, but I had agreed we needed to buy Paul's long-term silence. When I showed up at college with Joanna as my very public girlfriend, the three of us felt that Paul would quickly figure out that Joanna had been my girlfriend during the summer while he was gone. All three of us felt it was best to get an explicit deal agreed to before the start of college.
Still, the weekend had sucked. There was a small voice that had spent the whole time telling me that the girls had really wanted a last hurrah with Paul. I knew it wasn't true, and I wanted to beat the shit out of that small voice for slandering my girls, but it had me in a crappy mood.

When I got home, my mood instantly brightened. Joanna said, "Paul's been gone for a while, but we needed some time to get dressed up."

Kaitlyn and Joanna were identically dressed, wearing high heels, stockings, a garter belt and a smile. Kaitlyn's stockings and garter belt were a royal blue whereas Joanna's were a bright orange that looked better on her darker skin. Kaitlyn had her hair braided like the first time we had made love - a crown on the front and sides, and a waterfall in the back - but this time with royal blue and orange silk ribbons in her hair instead of white. Joanna's hair was braided in a simple crown, the first time she had had it braided since we had started dating, and she also had royal blue and orange silk ribbons in her hair.

I looked over Kaitlyn and Joanna, savoring their beauty. "You two look so beautiful. I'm the luckiest guy in the world."

Kaitlyn said, "You are," and both girls laughed.

I had bought the stockings and garter belts a while ago, learning from Paul that presents were a good thing even though I still felt stupid spending what was rapidly becoming "our money" on things the girls could buy better on their own. It wasn't so much the gift, it was demonstrating I was paying attention to what they liked. The girls had promised to wear them "soon". I hadn't been expecting them to both be wearing them now.

I asked, "How did the weekend go?"

"It was successful," said Kaitlyn. She knew I didn't want to know the details.

"Paul promised to never tell anyone about you and Kaitlyn," added Joanna, "and to tell everyone his relationship with her and me was just like it had been the first few weeks of the summer."

"Perfect."

Joanna moved up to me and gave me a kiss. "I missed you."

"I missed you too." I gave Joanna a kiss then kissed Kaitlyn. "And I missed you too."

Joanna said, "You're overdressed," and started pulling down my shorts. Kaitlyn started pulling up my shirt.

I laughed. "I am."

Once the girls got me naked, they pulled me over towards the couch. They were sitting on it, and I was standing between them.

Joanna said, "We're going to try something new."

Kaitlyn eased my cock into her mouth, taking about half my length in.

I said to Joanna, "Something naughty?"

She smiled while Kaitlyn slowly pulled her head backwards, running her marvelous lips down my cock until it was freed from her mouth.

Joanna said, "Something very naughty," before moving her head towards my cock. To my surprise, Kaitlyn guided my cock into Joanna's mouth. This was the first time they had alternated while giving head. Before we had moved into the apartment, the girls had worked out some rules; one of which was that one girl was designated "the girlfriend" for the night, and only she had sex with me. When Paul was in town, he could kiss and feel Kaitlyn, but he never could have sex with her, and I couldn't have sex with Joanna.

Kaitlyn said, "Now that Paul is out of the picture, we're going to be changing some of the rules." She watched Joanna suck my cock, and when it came clear of Joanna's mouth, Joanna held it out for Kaitlyn. Kaitlyn paused for a moment.

Joanna said to me, "There's a natural revulsion to taking someone's saliva into your mouth. We've been trying to steel ourselves to doing it tonight." She turned to Kaitlyn. "It wasn't that bad once I got him in my mouth."

Kaitlyn looked at Joanna for encouragement, and then to my cock. She opened her mouth wide and took my cock in. Once my cock was fully in her mouth, I said, "You two are amazing."

Joanna smirked. "And naughty."

Having Paul in the equation had given our ménage à trois training wheels, forcing us into a particular rhythm and pushing us to adopt certain rules. Tomorrow, we'd move to our new apartment at college and would start our life as just the three of us, so we were free to do as what we wanted.

I asked, "So what are the rule changes?"

Kaitlyn pushed my cock into Joanna's mouth. She said, "We haven't completely decided. But we have decided to surprise you with them." Her eyes twinkled.

One of the things I had learned to accept was that the girls were in charge. They had to deal with the natural jealousy that should tear any sharing relationship apart. It was pretty damn easy for me to be with whoever I was assigned to at the moment.

The girls alternated sucking my cock, taking it deeper and deeper into their mouths each time. They grew more comfortable with going after the other and soon developed a pretty good rhythm. Finally, I said, "I'm wanting to cum someplace besides a mouth."

Joanna smirked. "Are you saying you want to fuck someone?"

"Hell yeah. I haven't fucked anyone in days."

The girls stood up, Joanna grabbed my cock and led me towards her bedroom while Kaitlyn followed along behind. When I got to the bedroom, the covers were pulled back on the bed and a beach towel was on the center of the bed. The three of us had never had sex together before - I had always gone with one of them into their bedroom and closed the door - so this was definitely a rule change. I wondered how things would play out.

As we got to the bed, Kaitlyn said to Joanna, "Do you want me to go first?" There was something odd about the way she said it.

Joanna said, "No. I want to go first if you don't mind."

Joanna opened the nightstand and took out some K-Y lubricant. She moved to the center of the bed, lay down on her back, applied it to herself, put the bottle on the nightstand and gave me a smile to indicate she was ready. I moved between Joanna's legs, but before I could get into the missionary position, she rotated her hips back and brought her legs up so they rested on my shoulders. She said, "I thought I'd try a new position for our first fuck as only your girl."

I said, "You're such a naughty girl." Joanna smirked. I added, "I've never had sex like this before." Joanna laughed silently.

I guided my cock to Joanna's pussy, and I was in her. I could tell almost immediately that she hadn't been fucked recently. Then I realized that Paul had probably spent the weekend fucking Kaitlyn. In ways it made sense as he hadn't fucked her since the week at the lake, and Kaitlyn was sexier than Joanna. Still, it was an extraordinarily rude thing to do, and I was certain it had hurt Joanna to be rejected like that.

I started fucking Joanna slowly. Having her legs on my shoulders meant I was fucking her at an unusual angle. Fucking in this position wasn't very different from fucking in the missionary position, but it was different enough to be fun. I felt slightly guilty about not making Joanna cum first, but after being rejected by Paul it was apparently important to her to be made loved to right away.

Joanna said, "I'll be honest and say that I had a lot of fun this summer, particularly when I made out with you in front of Kaitlyn and Paul. But I'm ready to be just your naughty girl."

"And I want you to be only my naughty girl."

I saw some movement and looked over to see Kaitlyn take Joanna's hand. I looked at Kaitlyn; and she gave me a smile, letting me know she approved of me fucking her best friend.

Joanna looked over at Kaitlyn and said, "Cum with us."

Kaitlyn shifted position so she could spread her legs wide comfortably. Soon she was rubbing her pussy with her right hand as she held Joanna's hand with her left. Once she started that, I looked back at Joanna, and she gave me a smile.

I said to Joanna, "I love you."

When we first moved in, it was an open secret among us that I loved Kaitlyn but only cared for Joanna. It took me a while to get over her dumping me. If I had to pick between them now, I'd still take Kaitlyn. But as Mom had told me at the lake house, love is a choice; and we had chosen that I would love Kaitlyn and Joanna equally. As we acted out that choice; as Joanna and I enjoyed so many happy times together; we rebuilt our relationship, and I had eventually fell back in love with her.

I added, "If Kaitlyn wasn't my sister, I'd still want to live with both of you. And if Kaitlyn was out of the picture, I'd still live with you."

Joanna smiled bigger. At some point I had told her those two statements, and they had made her feel much more secure in our relationship, that I really did love her and wasn't just using her to cover up my relationship with Kaitlyn. "I'm yours and only yours now. And I know you love me."

I was really getting into fucking Joanna now. I definitely liked this angle, the way I towered over Joanna which made me feel more physically dominating than in missionary. Joanna and I were panting now in time to the sound of the bed rocking. Kaitlyn was moaning lightly as she jilled herself. Joanna looked up at me and said, "A little sound...pant...track for...pant...our fuck."

I chuckled lightly and replied, "You're so naughty."

I could tell Joanna was getting turned on by having me fuck her while Kaitlyn masturbated next to us. I adjusted our rhythm to match Kaitlyn's moans. I said, "I love fucking you," while continuing to steadily thrust in and out of her. I did love fucking Joanna. I loved her creative and adventurous nature. Sex would never be boring with her around.

Joanna said, "I can't hold this anymore," and moved her legs down from my shoulders. I stopped for a moment, so she could shift into the missionary position. Once she did, she asked me, "Or would you prefer doggie-style?"

Ever since I had fucked Joanna over the arm of the couch at the lake house, doggie-style was my favorite position with her. "Yeah."

I pulled back, sliding out of Joanna, and then grabbed her waist. With her help, I flipped her over onto her hands and knees. She raised her ass up high for me to mount her and then suddenly reached out to grab Kaitlyn's hand. Kaitlyn continued jilling herself, her moans getting steadily louder.

I slid my cock all the way into Joanna's sopping pussy. I grabbed her waist and started hammering her.

Joanna turned back to look at me, and said, "Cum with Kaitlyn."

I had been getting close to cumming, but I could tell from Kaitlyn's moans that she was a few minutes away. I slowed my assault on Joanna and began doing times tables in my head to distract me. It wasn't much of a distraction - I loved the feeling of Joanna's slick pussy as it grasped my cock while I slid in and out of her; I loved holding her wonderful body and looking at her great legs.

I varied my pace, sometimes going slow and sometimes pounding Joanna. The variety kept up my enjoyment while distracting me enough that I kept my orgasm slightly distant. I listened to Kaitlyn while staring at Joanna's smooth, well-toned back.

I heard Kaitlyn's moans reach a crescendo. I grabbed Joanna firmly and hammered her hard until I went over the edge. My first spurt shot into Joanna as I heard Kaitlyn make the gasp she did when she was cumming. I steadily filled Joanna with my cum as Kaitlyn came while holding hands with Joanna.

When I finished, I pulled out of Joanna and lay down between her and Kaitlyn. Our first threesome fuck had been awesome, both physically and emotionally satisfying. I felt drained but also on cloud nine. I couldn't picture it getting better than this.

I lifted myself up, looked to my left and right and saw that both girls were lying on their backs. I got on my hands and knees and bent over Joanna to give her a soft kiss before moving over to Kaitlyn to give her the same. I alternated kissing the girls, enjoying the subtle differences between their lips and kissing technique.

Joanna said, "Lie on your back." She gave me a wicked little grin, so I knew she had something fun in mind. I lay down, wondering what she had planned.

Joanna got on her hands and knees, and moved so her chest was over mine. She gave me her mischievous grin and then lowered herself so her nipples lightly touched my chest. A thrill shot through me. Joanna slowly dragged her nipples about a foot down my chest. Her nipples moving across me like that felt incredibly erotic, and I let out a long sigh while she did it. Joanna sat up and gave me her I'm-so-naughty look before saying to Kaitlyn, "Your turn."

Kaitlyn moved to dangle her tits over my chest, and, as she did so, I admired her awesome tits. They looked even bigger as she dangled them. She slowly lowered herself until her nipples touched me, and another thrill shot through me. Kaitlyn looked up at me and gave me a sexy smile. She dragged her nipples lightly over my chest, which felt even better than when Joanna had done it. She backed away for Joanna to go next.

Joanna moved her tits over my chest again, but this time starting low on my chest. She dragged them upward until she reached almost the top of my pecs where she lifted them off my chest. Instead of sitting up, she continued upwards until a nipple was right over my mouth. She slowly lowered herself as I opened my mouth wide. Once her tit was well within my mouth, I grabbed it with my lips and sucked on it. She let me suck on it for a few seconds before sitting down next to me.

As soon as Joanna sat down, Kaitlyn moved to dangle her tits over my chest. While she was doing so, Joanna grasped my now-firming cock. As Kaitlyn dragged her nipples up my chest, Joanna stroked my cock. Jesus, did that feel great! Kaitlyn moved upwards and dangled her tit over my mouth. I again opened my mouth wide. She lowered her tit into my mouth, but when I went to suck on it, she pulled it out of my mouth and chuckled. She dragged her nipple along my lips until I opened my mouth again. The whole time she was doing this, Joanna was stroking my cock. I opened my mouth again, Kaitlyn lowered her tit into it and this time she let me close my mouth on it. I sucked on her tit as Joanna's hand steadily slid up and down my cock. I had had vague ideas about what a threesome with Joanna and Kaitlyn would be like, but so far it had vastly exceeded my limited imagination.

Joanna said as she held my now stiff cock, "He's ready to fuck again."

I moved so Kaitlyn could lie down on her back in the center of the bed. She preferred the missionary position. She spread her legs and said, "Fuck me." The way she said it was incredibly sexy. After a summer of having her as my girlfriend, my sexual attraction to her hadn't lessened a bit.

I moved into position, and as I did, Joanna grabbed my cock. "Let me help you two be naughty." She guided it to Kaitlyn's pussy. Fortunately for Kaitlyn and me, Joanna enjoyed the naughtiness of me having sex with my sister.

I pushed a little ways in. I pulled back and pushed a little further in. "Like that, Brandon," Kaitlyn said lustily. She wrapped her legs around mine, pulling me deeper into her on the next thrust. "So good," Kaitlyn moaned. She was great at letting me know how much she enjoyed fucking me.

One more thrust and my full length was inside of Kaitlyn. Kaitlyn held me all the way in her with her legs. Her beautiful blues looked deep into mine. She said, "Fuck me, Brandon," and I felt her legs relax.

I did as Kaitlyn asked, starting slow. I hadn't fucked her since Wednesday, so it felt good to be fucking her again. Her pussy gripped my cock like a soft glove, making every inch that moved in her so pleasurable, not that her pussy felt so different from Joanna's. It was more her sexual presence, the way she could make the simplest thing sexy, that made fucking her so special.

I thrust into Kaitlyn and pulled back; I thrust and pulled back; her legs pulling me harder into her on every thrust.

A small movement drew my attention to Kaitlyn's hand, and I noticed Joanna was holding it. I looked at Joanna, and she smiled at me. She said, "Kaitlyn, I must be the best best-friend ever, since it makes me so happy to see my boyfriend fucking you."

Kaitlyn squeezed Joanna's hand. "You are the best best-friend ever. Are you going to be happy to watch Brandon fuck me when he's your husband?"

Joanna chuckled. "When he's my husband?"

"Oh, yes. He's going to marry you."

I stopped fucking Kaitlyn and shook my head. My manipulative sister was in action again.

Kaitlyn said, "I hope you don't mind if I continue to live with the two of you after you get married."

Joanna laughed. "I'd love for you to live with us after we get married. But Brandon..."

Kaitlyn looked at me, daring me to say something. When I didn't, she said, "Mom's hinted to me a couple of times she'd like you and Joanna to get married some day. I've wanted you two to get married since I saw how cute of a couple you two made. So give it up, you're outvoted."

I snickered. My manipulative sister was pushing things along again. Marriage hadn't crossed my mind. But now that the topic was brought up...

I said to Joanna, "Would you like to marry me someday?"

She said in a teasing tone, "I don't know, Brandon. We're so young and we haven't dated all that long. It's really rushing things." She turned to Kaitlyn and asked, "Would you be my maid of honor?"

"Of course!"

Joanna looked back at me and smirked. "In that case, I'd love to marry you someday." Joanna moved towards me and kissed me gently. "Now give your sister the good fucking she deserves."

I turned back to Kaitlyn, who said huskily, "Fuck me, Brandon. Make love to me. "

I pulled back and thrust into Kaitlyn, who moaned in delight. I felt Joanna put her hand on my lower back, and she lightly pushed me forward as I plunged into Kaitlyn. "Fuck her, Brandon. Fuck my best friend. Let me show her how happy it makes me to see you make love to her." Kaitlyn pulled me into her extra hard as Joanna said that, like Joanna declaring her approval of my fucking Kaitlyn made her extra excited.

The talk of marriage had thrown me off for a little while, but now Kaitlyn and I had a great rhythm going. She was pushing her ass off the bed to meet my every thrust, moaning loudly every time. The bed was really rocking now. I happily looked down at my sister as I fucked her. She was so beautiful and sexy. I loved looking at her as I fucked her. And I loved how she was loud and enthusiastic as we fucked.

As I fucked Kaitlyn, I thought about what the three of us had tentatively agreed to. I could never legally marry Kaitlyn. Marrying someone who agreed to let us be lovers was as permanent as our relationship would ever be. I suddenly pictured Kaitlyn coming to mine and Joanna's hotel room on our wedding night, and me reciting with her the same vows that I had recited with Joanna.

Kaitlyn moaned, "Oh, yeah. Oh, yeah." Joanna lay down next to her and they held hands again. There was something about them holding hands that convinced me that our ménage à trois would work long-term. I loved them both, though they were very different people, and I'd do anything to keep both of them happy. Though it was early to talk about marriage, I knew marriage was almost a certainty.

Joanna reached out and ran her hand along my side. She started lightly pushing me downward on each down stroke and then running her hands up and down my backside until I was ready for the next down stroke. Fucking Kaitlyn was awesome in and of itself, and Joanna running her hand over my body was turning the pleasure up to eleven. Sex had never felt this good.

"It feels so good, Brandon. Keep fucking me like that."

It didn't feel good - it felt incredible. As I had already cum, I was going to be able to keep fucking for a while. I snuck a look at Joanna, and she was watching us with a happy, slightly excited expression. She continued stroking my backside to encourage me. I thought about a hat trick, but decided that that wouldn't be fair. And there was no way I'd be able to fuck four times in an evening. Instead, I'd encourage Joanna tomorrow morning to get our day started off right.
Kaitlyn said, "Faster, Brandon. Faster!"

Her words pushed up my excitement level. It felt so goooood! As I was already fucking Kaitlyn fast and hard, I took her words as encouragement and not as instruction. She always knew exactly what to say to push my buttons. I shifted up higher so I'd have a little more power to my thrusts. I plunged into Kaitlyn harder than before. She tossed her head back and forth with her eyes closed, her face filled with lusty pleasure. She looked so damn sexy. What made fucking her so incredible was how she was able to communicate how much she enjoyed it.

"Like that! Fuck me like that!"

I continued fucking Kaitlyn hard and fast. Now instead of raising her crotch to meet my thrust, Kaitlyn egged me on by using her legs to pull me harder into her. I was really slamming her now. She was such a great fuck.

Once more, Kaitlyn gushed, "You're so good, Brandon! Soooo goood!" The way she had huskily held her vowels shot a thrill through me.

Then the excitement was too much. Pleasure swept over me as I started cumming into my sister. A huge smile filled her face as she felt my first spurt explode inside of her. I fired shot after shot in her, a surprisingly big load given I had cum already.

I bent forward and kissed Kaitlyn as I savored the feeling of my cock slowly shrinking inside of her. I was exhausted and spent, but incredibly happy. I pulled out of Kaitlyn and collapsed on my back on the bed. Kaitlyn and I used the towel to clean up our sex juices. After she tossed the towel onto the floor, the girls settled down on each of my sides with their heads on my shoulders. I felt them hold hands and then rest their hands on my stomach.

I said, "I love you both."

Both girls said at the same time, "We both love you," and then laughed.

I'm the luckiest guy in the world.

Author's Notes:
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