<p><a href="https://www.patreon.com/posts/69348081">Click here</a> to read the previous parts of the story.</p><p><img data-media-id="98853260" src="/2f/00/2f0078b07eafd6c8c0337b6fdb01cc83e66df680ba88c974b212df0560635b13.jpg"></p><p>Sophie was standing at the end of the pool as Carson finished a lap. He brushed his wet hair back and looked up at her. “Hey, what’s up?”</p><p>“Am I crazy, or are you suddenly working out a lot more often?” she asked.</p><p>Carson smiled. “You’re not crazy.”</p><p>Sophie stepped back and sat on a lounge chair. She crossed her legs and her skirt rode up a little. Her freshly-painted toenails looked rather lovely as her foot dangled just a few feet from where Carson floated in the pool. She glanced into the house and Carson’s gaze followed hers. Lauren was busy preparing the chicken that she was about to put on the grill. She was dancing to music Carson couldn’t hear and she looked irresistible.</p><p>“Are you working out because you’re feeling a little jealous?” Sophie asked.</p><p>She was right, but Carson didn’t want to come right out and admit it. “Jealous?”</p><p>Sophie flashed a knowing smile. “Yes, Carson. Are you feeling jealous of the men your wife has been fooling around with? Is that why you’re working out almost every day?”</p><p>“That might have something to do with it,” Carson replied.</p><p>“It’s been a week since her flirtation with Miguel,” Sophie said. “She thinks about him every day, you know.”</p><p>Carson looked through the sliding glass door into their kitchen. He saw his wife shaking her ass as she seasoned the chicken. She’d been in a particularly good mood all week and he couldn’t help but wonder if she really was thinking about Miguel. “How do you know?” he asked.</p><p>His sister-in-law smiled and leaned forward. “Lauren tells me everything. She told me that your sex life has improved significantly since she kissed that guy in the bar. She said the past week has been especially good, that you’ve been more affectionate and amorous and that you seem to be trying harder to see to her needs.”</p><p>Carson liked that Lauren had noticed, though he was a little less thrilled that she was apparently still thinking about Miguel. “She told you she’s been thinking about Miguel?”</p><p>“She did,” Sophie said. “She told me she thinks about him every day. She also told me she feels bad about it. She said it’s obvious that you’re trying hard to see to her needs and that she doesn’t like that she can’t keep Miguel out of her head. She just can’t help it. Does that make you jealous, Carson? You’re trying so hard to make Lauren happy, to satisfy her needs, and yet she can’t help but think about a man she’s met just once.”</p><p>Carson felt the jealousy, but there was also an unavoidable sense of desire. The erection that had sprouted between his legs was proof of that.</p><p>“Are you turned on, Carson?” Sophie asked.</p><p>He looked at his sister-in-law and nodded. Sophie already knew. There was no point in denying it.</p><p>“It makes you want to fuck her, doesn’t it?” Sophie asked.</p><p>Carson nodded again.</p><p>“That’s good,” Sophie said. “Some men would be defeated by their wife’s desire for someone else. They’d feel betrayed and humiliated and they might have trouble getting it up. You’re not like most men, though, are you?”</p><p>“I guess not,” Carson said as he looked through sliding glass door once again. Sophie was right. He wanted to fuck his wife. He wanted to go inside and drag her to the bedroom. He wanted to yank her shorts off and plunge his cock inside her.</p><p>“She’s been texting with Miguel,” Sophie said.</p><p>Carson’s head whipped towards Sophie and he saw the smile on her face. There was no reason to believe she was lying. Instead, it seemed likely that she was revealing a truth about his marriage. He’d worked hard to satisfy Lauren all week and she was still preoccupied with someone else. She was texting Miguel, the man she’d kissed on the beach, the man whose hands had been on her breasts as they played together in the ocean.</p><p>“What…what are they texting about?” Carson asked as his erection raged.</p><p>“Desire,” Sophie answered.</p><p>The devilish smile on her face said so much more than her one word answer. Carson needed to hear more, though. He couldn’t help but press for a deeper answer. “Desire? What kind of desire?”</p><p>“The kind of desire that can’t be denied,” Sophie said. “The kind of desire that you feel in your bones. The kind of desire that has you thinking about someone every day. The kind of desire that has you thinking about someone while your husband is fucking you.”</p><p>Carson gripped the edge of the pool as he felt his own desire build until it was just short of overwhelming.</p><p>“Miguel wants to see her again, Carson,” Sophie continued. “He wants to touch her, to kiss her, to seduce her.”</p><p>Carson closed his eyes for a moment and saw Lauren kissing Miguel at the beach. He saw the other man’s hands on her. He saw the way his wife’s body had responded to his touch. He saw how eager she’d been to jump into the ocean with him and how they’d fooled around in the water.</p><p>“What does Lauren want?” Carson asked.</p><p>“She’s conflicted,” Sophie answered. “She wants to see him, but she knows she won’t be able to resist him if she does. She knows it will go further than a little kissing and touching. She knows her desire will overwhelm her and she’s worried she might do something she can’t take back.”</p><p>Lauren opened the sliding glass door and popped her head out. “Honey, can you light the grill for me?”</p><p>“Of course,” Carson replied.</p><p>Lauren closed the door and Carson remained in the pool. He couldn’t very well expose his erection to his sister-in-law or risk Lauren looking out and see him walking around with a boner.</p><p>“I’ll take care of it,” Sophie said with a smile. She made her way to the grill, lifted the lid, and fired up the burners as Carson watched from the pool. “Tell me, Carson, what do you think Lauren should do? Should she see Miguel again? Should she give in to her desire?”</p><p>Sophie closed the grill lid and made her way back to the lounge chair. She sat and leaned forward. She smiled like she was thoroughly enjoying his discomfort at having to consider such a question.</p><p>“What…what do you think she’ll do if she sees him again?” he asked.</p><p>Sophie leaned back and smiled. “I think he’ll make her cum. I can’t say how that will happen, but Miguel is the sort of man that understands that Lauren will come back to him over and over if he gives her an orgasm she’ll never forget. If I had to guess, I’d say he’ll go down on her. He’ll seduce her first, of course, but he’ll end up between her legs and he’ll use what I’m certain is a gifted tongue to give her the sort of pleasure every woman dreams about. He’ll draw it out. He’ll make love to her pussy with his tongue. He’ll use his fingers, too. Eventually, he’ll give her an orgasm so powerful she can’t see straight for a few moments.”</p><p>Carson imagined it all playing out. He saw Lauren on her back in another man’s bed. He saw Miguel between her legs. He saw the other man’s tongue and fingers working Lauren’s pussy until she was quivering with an overwhelming desire to cum.</p><p>“Doesn’t she deserve that, Carson? Doesn’t your wife deserve the kind of orgasm that will have her seeing stars? Doesn’t she deserve something better than what you’re capable of giving her? Doesn’t she deserve to be with a gorgeous man that will make her pussy sing with pleasure?” Sophie asked.</p><p>“Yes,” Carson said. He wasn’t sure he wanted Lauren to see Miguel again, but he couldn’t argue with the notion that she deserved that sort of pleasure.</p><p>Sophie stood and walked towards the edge of the pool. She looked down at Carson and said, “Tell me you want her to see him again and I’ll make it happen. I’ll convince Lauren that she deserves to indulge in her desires. I’ll convince her that seeing Miguel is the best thing for her and for your marriage. I’ll convince her to be a little selfish in the name of the long term health of your relationship.”</p><p>Carson’s heart pounded as he looked up at his sister-in-law. He knew she’d be able to convince Lauren. It probably wouldn’t take much effort. That meant he was effectively deciding whether he wanted another man to make his wife cum. The more he thought about it, the more it turned him on. Sophie was right. Lauren deserved a great orgasm. She deserved what he couldn’t give her. She deserved what Miguel could give her.</p><p>“I want her to see him again,” Carson said.</p><p>Sophie smiled. “I knew you’d make the right decision. Finish your workout while I go inside and convince your wife to make a date with Miguel.”</p><p>Carson watched Sophie step into the house. There was no turning back now. It was possible he’d just made a colossal mistake, but the excitement coursing through his body told him otherwise. He pushed away from the wall and started in on another round of laps in the pool. He was still determined to become the man his wife deserved, even if she spent a little time with someone else before he got to that point.</p><p>“What did she tell you she was doing?” Sophie asked.</p><p>Carson looked at his sister-in-law and said, “Dinner with a friend she hasn’t seen in a decade.”</p><p>Sophie laughed. “That’s pretty smart. I assume she didn’t tell you where they were eating.”</p><p>“Nope. She said they hadn’t figured it out yet,” Carson replied.</p><p>Carson flipped channels, though he barely noticed what was on screen. He was just trying to keep his mind occupied and he was largely failing.</p><p>“You’re thinking about it, aren’t you?” Sophie asked. “About what she’s doing with him?”</p><p>There was something in her voice that made Carson a little wary. It was a fairly simple question, but there was a seductive quality to the way she’d asked it that left him feeling just a little uncomfortable.</p><p>“Yes,” he answered. He could have asked Sophie to go back to the guest house. He hadn’t invited her into the house, after all. She’d let herself in and sat on the other end of the couch with a smile on her face.</p><p>“What’s she doing? In your mind, I mean?” Sophie asked.</p><p>Carson glanced over and she uncrossed her legs. Her skirt had ridden up a little and he could see more of the smooth, soft skin of her thighs. “What are you doing?” he asked.</p><p>Sophie offered a look like she’d been accused of something untoward. “I just want to understand how your mind works, Carson. Remember, this isn’t just about improving Lauren’s sex life. It’s about improving your marriage. I wouldn’t have pushed her to meet up with Miguel again if I didn’t think it was the best thing for both of you. I know you’re thinking about it. I know it turns you on, Carson. There’s no point in hiding it. We both know it’s true. We both know your dick was hard as a rock in the pool the other day. I’m sure you feel all sorts of things, but we both know that you’re turned on by the idea of Lauren being out with Miguel tonight, and I want to know more about that. So, what are you thinking about? What’s she doing with him?”</p><p>Carson took a deep breath and let it out slowly. “It changes,” he said. “What she’s doing, I mean. It changes. Sometimes she’s kissing him like she did on the beach. Sometimes it’s the same as it was in the first videos you sent me. She’s in a booth with him. They’re kissing. He’s touching her. He’s making her feel good.”</p><p>“He’s fingering her?” Sophie asked.</p><p>Carson nodded. She flashed a seductive smile and he looked away. There was no reason to believe Sophie was actually trying to seduce him, and yet Carson couldn’t help but feel a little uncomfortable about the way she was acting.</p><p>“What else does it change to?” Sophie asked. “What else is Lauren doing with him?”</p><p>“They…they go back to his place,” Carson answered as he pictured his wife and Miguel in bed. He’d pictured it countless times since that afternoon in the pool. Sophie had filled his head with vivid imagery and he’d failed to banish it. “They…well, they fool around.”</p><p>“How?” Sophie asked. Her voice was laced with what sounded an awful lot like lust. Carson shifted on the couch as arousal mixed with a sense of discomfort. He couldn’t quite decipher what had him turned on, though. Was it the idea of Lauren being out with Miguel, or was it Sophie?</p><p>“I…Sophie, this feels inappropriate,” Carson said.</p><p>“Does he go down on her?” Sophie asked, ignoring Carson’s reticence. “Does he use his tongue and fingers to make your wife cum? Does she go down on him? Does Lauren pleasure him with her mouth?”</p><p>Carson crossed his legs to try and hide his erection. It seemed clear that his sister-in-law was trying to arouse him, but he wasn’t sure why and it made him more than a little uncomfortable. He didn’t leave, though. He could have. He could have gotten up and walked away, but something kept him glued to the couch.</p><p>“Yes, she does,” Carson said. He’d fantasized about it constantly. He’d masturbated to it a handful of times since that day in the pool.</p><p>Sophie scooted a little closer, leaving just a few feet of distance between them. “Does she make him cum? Does your wife make him cum in her mouth?” she asked.</p><p>“Yes,” Carson said. He couldn’t help but get caught up in whatever game Sophie was playing. The lust in her voice – whether real or fake – wormed its way into his brain and made it impossible to resist going along for the ride.</p><p>“Close your eyes,” Sophie said.</p><p>Carson hesitated for a moment, but he was too far gone to resist. He closed his eyes as his sister-in-law desired.</p><p>“Think of Miguel between your wife’s legs. Think of his tongue moving over her clit. Think of his fingers inside her, rubbing her g-spot in the way you know she likes,” Sophie said.</p><p>Lauren had always enjoyed having her g-spot rubbed, a fact that she’d clearly shared with Sophie.</p><p>“Think of her moaning for him. Think of her body writhing in his bed as he drives her right to the edge of her orgasm,” Sophie continued.</p><p>Carson did as she instructed. He pictured it all. It seemed insane to let his sister-in-law lead him down a path of such intense desire, but he wasn’t thinking straight.</p><p>“Think of him standing up,” Sophie said. “Think of your wife looking up at him. Think of her eyes moving down his body and staring at his cock. Think of it being hard for her. Think of her lust, Carson. Think of her desire for him. Think of your wife in his bed with her legs spread and her soaking wet pussy in desperate need of his cock.”</p><p>Carson groaned. He felt Sophie movie closer.</p><p>“Don’t open your eyes,” she said. She was close enough that he could feel her breath on his neck as she spoke. “Tell me, Carson, what do you think your wife would do in that situation? What would she do if Miguel crawled on top of her? Would she tell him to stop, or would she reach down and guide his cock into her pussy? Would she turn down the chance to have the sex she desperately desires – the sex that you can’t give her – or would she let go and fuck him?”</p><p>“I…I don’t know,” Carson said. “I don’t know.”</p><p>He felt Sophie’s hand on his knee. Her fingers moved a few inches up his thigh. “I don’t believe you,” she whispered. “I think you know what she’d do. I think you knew it was possible when you agreed to let me convince her to see Miguel again.”</p><p>Sophie’s fingers slowly moved up his thigh. Carson’s heart beat harder as his sister-in-law inched towards his crotch.</p><p>“I think it’s what you want, Carson,” she whispered. It felt like her lips were inches from his neck. He could smell her perfume and feel her soft hair against his arm. “I think it turns you on to think about Miguel fucking your wife. I think you want her to fuck him. I think you want his cock to be buried inside her right now.”</p><p>Carson shook his head. Sophie’s fingers had reached the middle of his thigh. It felt wrong. It felt like cheating, like he’d let it go too far.</p><p>Carson stood up and walked away from the couch. “I’m sorry. I can’t. We can’t. This isn’t right,” he said.</p><p>Sophie smiled and looked at the bulge in his shorts. “Your cock says otherwise, Carson. It says you’re turned on. It says you like this. It says that I’m right, too. It says that you want your wife to fuck another man.”</p><p>“No,” Carson said. “Stop it. This isn’t right. None of this is right.”</p><p>Sophie’s phone buzzed and she picked it up. A smile crossed her face. She stood and walked towards Carson with the phone in her hand. He stepped back until he was standing against the wall with nowhere to go.</p><p>Sophie showed him her phone. She’d received a text from Lauren: “He just gave me the best orgasm I’ve had in years. He did things with his tongue and fingers I’ve never experienced before. I feel a little guilty, though. What should I do?”</p><p>“Should your wife feel guilty for having the kind of orgasm you can’t give her?” Sophie asked. “Should she feel guilty for finding her sexual satisfaction outside your marriage?”</p><p>Carson shook his head and Sophie stepped closer. She tapped out a message on her phone and showed it to Carson before hitting send: “Don’t feel guilty. Remember that you’re doing this because you still want to be with Carson. It’s not your fault that he can’t give you what you need and you don’t have to feel bad about getting it from someone else. As for what you should do, I recommend that you make sure Miguel has an orgasm just as good as yours. When was the last time you gave a great blowjob?”</p><p>“Should I send it?” Sophie asked. “Should your wife return the favor? Should she make Miguel feel as good as he made her feel? Is that what you want, Carson? Do you want your wife to give Miguel a blowjob? Do you want her to make him cum in her mouth?”</p><p>She stepped closer. Her breasts were very nearly pressing into his chest and his still-stiff cock was impossibly close to her crotch. Sophie stared into his eyes as Carson considered her questions. He knew what would happen if Sophie sent the text. He knew Lauren would do as her sister suggested. That much was clear.</p><p>“Yes, you should send the text,” he said.</p><p>Sophie smiled and tapped her phone’s screen. The message was sent. A reply came in soon after. Sophie showed Carson the phone: “Is it terrible that I was hoping you’d say that?”</p><p>“Your wife wants to give Miguel a blowjob,” Sophie said. “She wants to feel his beautiful cock in her mouth. She wants to make him moan. She wants to make him cum. Tonight, when she gets home, she’ll have had another man’s cock in her mouth. She’ll have his cum in her stomach. She’ll have made him feel good. How does that make you feel?”</p><p>“It turns me on,” Carson answered. He was way past the point of lying to Sophie.</p><p>She stepped back and glanced at the tent in his shorts. “I know it does. And Lauren is almost certainly going to fuck you when she gets home. She’ll feel guilty enough that she’ll want to make you cum. That’s why you’re going to refrain from masturbating. I know you want to, but you’re going to keep your hands off your cock and let your wife get you off. Do you understand?”</p><p>“Yes,” Carson said.</p><p>“Enjoy the rest of your night, Carson,” Sophie replied before turning and heading towards the kitchen. She stepped out into the backyard and towards the guest house, leaving Carson alone with his thoughts.</p><p>He sank to the floor and an intense array of emotions washed over him. Lauren was probably giving head to another man. She’d probably have that man’s cum in her mouth before long. Sophie had come awfully close to touching Carson’s cock, and even though she hadn’t provided direct sexual stimulation, Lauren almost certainly would have been furious at the interaction between Carson and his sister-in-law. The whole situation was fucked up, and yet Carson couldn’t help but feel desperate for Lauren to return. Sophie was right. She would absolutely want to make him cum and after a night of such intense arousal, the one thing he wanted more than any other was to cum. He only hoped he wouldn’t have to wait all that long.</p>