Free Use Family
Family dynamics in a Free Use world.
Note: A story about what Free Use is like for regular families. Has mother-son and brother-sister segments. Almost exclusively involves anal, as usual, so feel free give this a pass if that's not your thing.

"Hey Simone."

"Welcome back James, what can I do for you this session?"

"I was thinking about another incest story, only with a mother this time."

"Well you've certainly changed your tune."

"Yeah I know, what can I say, this place is turning me into more and more of a pervert."

"No judgement here."

"OK well, it's the same deal as last time, the idea appeals to me, but only as a fantasy. I don't want you to change my beliefs this time, I don't even want to fake believe I'm with my mom so I was thinking you could give me like a 3rd person perspective to the whole thing."

Simone hummed. "So an incest story where you're just a voyeur? One of your easier requests, we can manage that."

"Well, not just an onlooker, that's no fun is it. Could you hook up my senses and emotions to the male protagonist, but keep my mind separate if you know what I mean?"

"Aaaand we're back to making my job hard. So you want incest, without the incest, got it."

"Can you do it?"

"Have I ever failed you before? Compiling now James."

The transitions were so seamless now. I found myself as a disembodied spectator looking down at a scene, somehow just knowing the backstory and relevant information. A stream of consciousness somewhat like narration flowed into my head.

~

For the past few days, Susan had noticed her son Mark coming back from school seeming distracted and distant, like something was bothering him. But when she asked, Mark wouldn't tell her what was upsetting him so much and just brushed her off. But as the week went by and his mood got worse, eventually after a lot of nagging Mark caved in and blurted out to his mom over dinner when it was just the two of them.

"It's just, at school my friends were telling me about how they've been with girls before, and I'm the only one that hasn't yet. It's just embarrassing me."

Susan gave her son a sympathetic look. "Oh is that all? Well then why don't you just try finding some girl willing to consent? I'm sure there would be a few around that wouldn't mind being used by a teen."

Exasperated, Mark complains. "Mom I've tried, but there aren't any. God, I wish I was 21 already so I wouldn't have to ask, or better yet, I wish we lived in one of those countries where the Act kicked in at 16, whose idea was it putting it at 21?"

"3 years isn't that long honey. And there must be some, what about the girls that your friends used? Why not just use them?"

At this, Mark looked away uncomfortably; this was where things would start going south. "My friends, they uh, none of them found regular girls that consented, they all just got, y'know, their moms to help."

Susan gave mark a disappointed look. "Really Mark? Haven't I made myself clear on this?"

Mark's pent up frustration made him blurt out. "But mom, please! I'm the only one out of all my friends, maybe everyone at school that hasn't tried anal with a girl yet."

"Oh now it's anal you want to do with me? What happened to just being with a girl?" Susan said, tilting her head to the side and frowning.

Mark shrugged weakly. "Iunno, it's just everyone does anal now, I don't want to be the weird one that doesn't."

"If your friends all jumped off a cliff would you?"

"Mom please, I'm not asking much, I just want to buttfuck you a little."

"Mark Stewart," Susan snapped testily. "I don't care if everyone else in the world sodomizes their family, we don't do that in ours."

Mark sags at his moms scolding and drops the subject looking dejected. It strikes a nerve with Susan, she doesn't like seeing her son so upset.

"Mark," Susan begins in a softer tone. "You know how I don't even like when your father does that to me and you've heard me complain all the time about my coworkers constantly sodomizing me, do you really want to put your mother through that?"

Brightening up Mark replies with a host of prepared answers he came up with earlier to try and sway his mom. "But Ethan's mom loves it. He says she lets him use her ass whenever he gets good grades which is all the time. And if dad and your coworkers and strangers all assfuck you, one more isn't going to hurt right? Plus I'm probably not even as big as dad, you could take me easy."

Ticking off the fingers on her hand Susan rattles off counterpoints. "Well first of all, I'm not Daniel's mom. Second of all it's the principle. Thirdly, yes you are and no I couldn't." With each point, Mark deflates more and more until he's convinced his mom is completely opposed to being used.

Seeing her sons disappointment and unhappy with causing it, Susan sighs. "But just because anal is off the table doesn't mean there aren't other options. You can have some oral if you really need it dear."

Mark perks up at this a little, but stays mostly glum. "It's not the same I'll still be the only one at school that hasn't tried anal yet."

Susan folds her arms. "Is that a no then? Well that's fine by me."

"No, no, orals fine too, I've never done that either... Can we do it now?" Mark blurted out quickly.

Susan sighs again at her son's eagerness but gets up to oblige him anyway.

Making her way around to Mark's seat, Susan gets on her knees and mechanically fishes out her sons rapidly hardening cock. He wasn't just as big as his father, he was bigger and still hadn't finished growing. At eight inches long, and almost three thick, Mark's cock was one of the largest Susan had ever seen and she'd struggle to take it anywhere.

Susan wanted her son to finish quickly and she had an idea of what men liked so looked up at Mark and opened her mouth invitingly, making sure to stick her tongue out. It did the trick. Mark quickly slid his cock into his mother's mouth and pressed deeper into her throat. Despite all the complaints, Susan, like every other woman in a Free Use society was deeply experienced and in just a few minutes managed to take Mark down to the balls in her throat even if it did make her choke, sputter and gag.

The warmth, slickness and pleasure of her throat was all new to Mark, he hadn't ever been deepthroated before and it drove him into an uncontrollable frenzy. He gripped the back of his mother's head and slammed her down onto his cock rabidly and selfishly, facefucking her like a maniac, using her throat as a sex toy to get off with, heedless of his mother's choking and sputtering. The manic facefucking made a mess of Susan's face; her mouth and chin were soon covered in phlegm, spit and precum that dripped down onto her blouse and tits while black tears ran down her cheeks.

As Mark recklessly facefucked his mother, she thought to herself with amusement. Boys really are all the same while reminiscing on old memories. She didn't forget her job though, Susan made sure to swallow constantly so that her throat would massage Mark's cock as he fucked it.

Unfortunately Marks inexperienced, careless fucking wasn't giving Susan any chance to breathe at all and she was getting desperate for air. Despite her views on penetrative incest, she still wanted Mark's first taste of oral sex to be as pleasant and memorable as possible. So she didn't want to stop him yet while he was having so much fun in her throat, but she was running out of air. Susan figured she could hold out another 30 seconds or minute longer for him though. Let the boy have a good time, you only get one first blow job.

Susan let her son Mark fill her throat for as long as she could, until spots started playing in the corners of her vision before she finally started slapping his thigh and trying to pull off of him. Thankfully Mark didn't take too long to let his mom off his cock. He watched with concern as Susan gasped for air unsteadily on her knees as soon as she was off, a sudden pang of guilt hitting him for losing control the way he did.

Mark shot off a quick apology, hoping his mother wouldn't be so mad she'd stop this all right now. "Oh God, mom I'm so sorry, I didn't mean to hold you down so long, I didn't realize you couldn't breathe. I, I just got so caught up, I swear it won't happen again."

"That's alright Mark," Susan said, in between heaving breathes. "Your father did the same thing the first time. All boys are the same, it's fine honey. Just give me a second before we start again." While still recovering her breath, Susan reached out and absentmindedly began stroking Marks cock.

After a minute or so, Susan got her breathing back to normal. "Alright honey, we can do more, here you go." And opened her mouth compliantly, sticking out her tongue again.

Susan looked like a picture perfect slut to Mark, obediently sitting there on her knees, hands clasped in between her legs, strings of spit hanging from her chin, tears and mascara running down her cheeks, waiting for Mark to fill her throat again. This time around he moved slower to savor things. Placing the head of his cock on his moms tongue, he slowly fed her his cock, basking in the sensation of it sliding over her tongue and hitting the back of her throat where it met resistance. He kept it there for a moment, enjoying the sight of his mother looking up at him with her mouth filled with his cock before he started pushing again, forcing his cock past and into her throat, making her choke at last. Susan choking around his cock sent a shiver of pleasure through him as her muscles contracted; he decided he liked making women choke on his cock.

In a haze of pleasure Mark breathed out. "Mom you're the best, this feels so great."

With the cock in the mouth, Susan couldn't reply but the corners of her lips curled up slightly and she resumed the swallowing motion, heightening Marks pleasure.

Mark noticed that if he stayed still inside her, he could leave it there while Susan swallowed and massaged him, but if he gave her little rapid thrusts that hit the back of her throat again and again, he could elicit the chokes whenever he wanted. It was like a button he could press to have a better time with her mouth, though it wouldn't be much fun for Susan. Mark felt a slight twinge of guilt for putting his mother through this, but it was a small thing he ignored. He consoled himself with the fact at least this time she could breathe as he choked her repeatedly with his cock. He loved the sight and feel of his mother's throat distending as it stretched to accommodate his thickness and the muscle contractions when she choked.

When Susan realized Mark liked feeling her choke on his cock, she thought to herself again that boys really were all the same with a mental headshake. Susan tried to oblige him by not trying to stop herself from gagging and just letting her body react.

The look Mark was giving her had made her worry slightly though, she was afraid that Mark might learn to love oral so much he'd want to stuff her throat every chance he got. She could get things done with a cock in the ass but it was just impossible to get anything done when men were throatfucking you. Still, she wasn't willing to change her mind just for the sake of convenience. He'll have to be satisfied with just my mouth.

Mark pulled back out to let Susan recover. Spit and mucus trailed from Susan's tongue to his cock as he did. Susan kept her mouth open and panted like a dog to catch her breath. When Mark thought it was long enough, he slowly fed her his cock again, each repetition giving her another inch here and there until she couldn't handle the meat filling her throat and choked again. Eventually, he was buried down to the balls back in her throat again and loving every second of it, especially since his mom had pulled out another trick and stuck her tongue out further to lap at his balls whenever her nose was pressed against his pubes. Lost in complete bliss as his mom swallowed repeatedly and licked at his sack, Mark drove his cock in as deep as he could. He pressed Susan's nose into his crotch so hard it almost hurt and stayed there, savoring the feeling of his mom servicing his cock.

This time though he remembered his mom needed to breathe so reluctantly pulled off after a while and eagerly waited for her to recover before sensually feeding her his cock again and again. Mark watched, mesmerized as Susan's throat bulged to take his cockmeat and closed his eyes to enjoy what Susan was doing.

Suddenly, remembering when one of his friends bragged about what his mom would do when she was deepthroating him, Mark wanted to see if Susan could do it too.

Mark looked down at his mom and asked while still completely inside her throat. "Mom, one of my friends said his mom could actually swallow his balls when she deepthroated him, I thought he was just making stuff up, people can't do that can they?"

In reply, Susan nodded slightly, as much as she could with cock filling her throat.

Heart thumping inside his chest at, Mark asked, hoping fervently. "Can you do that?"

Susan hadn't done that for anyone in some time and worried she'd be out of practice but thought she could at least try for Mark. Pressing her faced even harder against her sons pelvis, she stuck out her tongue and tried to use them to swallow his balls but couldn't quite manage it. Deciding she needed to use her hands, Susan finally unclasped them and moved them from between her lap for the first time. She gently handled Mark's balls and fit them into mouth; incredibly, she managed it on her first try, filling her mouth with Mark's ballsack, giving her a chipmunk look.

The sight made Mark shiver with delight and was the hottest thing he had ever seen, he immediately knew he was about to cum. Swapping from the slow, sensual throatfucking he had been giving her, Mark went back to the rabid skullfucking he gave her before, eager to dump his cum down her throat.

Grabbing the sides of Susan's head, he threw it back and forth on his cock, using it like a toy to get off with, making Susan gag and sputter horribly. "I'm gonna cum," Mark grunted out, moments before driving his cock hard down her throat. Susan knew just what to do and expertly resumed swallowing and licking Marks balls to milk out his cum, hoping to make him cum soon so she could breathe.

With his mom's nose buried in pubes, Mark shot massive, endless spurts of jizz straight down her throat.

Susan tried to swallow what she could but Mark's load was overwhelming, practically drowning her with its volume. She couldn't help but cough, sending cum back up around Mark's cock despite the seal it was making and out her nostrils messily.

Coming down from the mind blowing orgasm he'd had, Mark slowly pulled his cock free of his mom's mouth and was shocked seeing how sexy she looked. Her cheeks were streaked with running mascara, cum was trailing from her nostrils while spit and more of his semen was drooling from her mouth, she looked perfect to him. While Susan coughed and gasped for air, Mark thanked her profusely. "Mom you were incredible, that was the best thing ever."

"You're welc-" Susan said with a wet, phlegmy voice before clearing her throat and trying again. "You're welcome honey. I'm glad you liked it, maybe now we can put this whole anal business to bed?"

While still disappointed his mom wasn't letting him have her ass, he supposed he could live with this for now and nodded in acquiescence.

~~~

Later that night while she was getting ready for bed, Mark came into her room looking like he had something to say. Susan couldn't say she was surprised, she figured he probably wanted to use her throat again. She expected he'd be asking all the time now that she'd agreed to let him have a taste of what Free Use would be like. She of course could still turn him down since the law only covered those 18(21) and up but found the idea too cruel to actually go with now that she'd given him a taste. I suppose I'll just have to deal with this for a few more years.

"Hey mom?" Mark said, slightly embarrassed to be asking again so soon after their last session,

Susan gave her son a knowing look. "Did you want another turn in my throat honey?"

Mark just nodded eagerly.

Putting down the book she was reading, Susan got ready for another session of manic throatfucking. She laid down and moved over to the edge of the bed so her head hung off the end of it upside down. This was always her husband's favorite way to use her throat; she figured Mark would probably enjoy it too.

Mark for his part was still inexperienced and didn't know why his mom had maneuvered into that position. "Mom, what are you doing? Why are you lying like that?"

Susan chuckled lightly at her sons inexperience. "It'll be easier for you to use my throat like this honey, your penis won't have to bend and can just go straight down. You'll get to use my mouth like a pussy too, trust me you'll like it this way too dear. Just remember to let me up for air every once in a while Mark."

"I will mom, I won't forget." Accepting his mom's experience and eager to try it out, Mark quickly took off his pants and made his way over. Once near, his mom opened her mouth for him invitingly. He took aim and guided his cock into her wonderfully warm, wet mouth where he belonged. Pressing in, he found that she was right; his cock didn't have to bend as it went down her throat, making the throatfucking feel even better.

Remembering what his mom said, Mark began fucking her mouth like it was a pussy, using his hips to drive in rather than grabbing her head. It felt viscerally better moving his hips and pressing his weight into his moms face rather than using his hands, he definitely preferred it this way. He liked how he could watch his moms throat bulging as his cock made its way down it, or the way her body arched and tensed when she choked on his meat. It felt so good and natural to just push all his weight against his moms face, driving it hard against the mattress when he buried himself in her throat and left it there. Closing his eyes and savoring the familiar feel of his mom's throat wrapped tightly around his cock, Mark absent mindedly reached under her nightgown so he could play with and squeeze her tits, momentarily no longer thinking of her as a person, but just a set of holes to enjoy and soft mounds to squeeze. Mark was in heaven while Susan choked and her lungs burned for air.

As he stayed inside her, he saw Susan had stuck her tongue out again and was licking the top of his cock. It wasn't very sensitive there and he didn't feel all that much as she did it, but Mark was so grateful his mom was so caring she'd go the extra mile like that, she really was the best.

Remembering the other thing his mom said, Mark only spent a minute or two fucking his moms throat before he let her up for air. The minutes went by all too quickly for Mark but felt far longer for Susan. As experienced as she was, being throatfucked with 8 inches of cockmeat wasn't something anyone could handle easily. Every so often when Mark got too energetic and forced his cock in without giving her throat the chance to open up, she'd gag and cough, sending saliva and mucus geysering up past Marks cock where it would run over her nose and down her face in torrents. In just those 2 minutes of throatfucking, Susan's face was completely drenched in her own spit. Mark didn't notice or care as he made a mess of his moms face though, lost in his own pleasure as he pounded it.

The next quarter hour went by slowly for Susan as Mark used her throat with all the vigor of someone new to Free Use. Stars appeared in the corner of her eyes as Mark leaned his weight into her face, smothering her with his cock. She knew he was close because he was spending longer and longer without letting her up, soon enough she knew she'd have to start pushing the boy off if she didn't want to black out. It annoyed her slightly that Mark was almost suffocating her with his cock but she reminded herself that boys will be boys and tried to be a good sport about it.
Luckily for Susan, Mark was right about to cum. In the final moments he pounded into her throat like an animal, eyes closed and concerned with nothing else but feeding her his cum. Bottoming out one final time, Mark let loose and poured his cum down his mom's throat. The sudden stream of cum filling her throat took Susan by surprise and made her start bucking and coughing. She tried to swallow down the heavy load but it was too much too fast. She sputtered it back up where it shot out from the sides of her mouth and joined the saliva running down her face. The cum and cock was suffocating her so Susan reflexively reached for Marks legs to push him off.

Mark hardly felt the hands pushing against his thighs as he continued unloading down his moms throat. Instead of backing off, he just leaned more of his weight into Susan's face. But eventually Mark managed to compose himself and pulled back to let Susan up for breath. As soon as he was out, Susan sucked in heaving gasps of air. Susan flipped over onto her front and coughed wetly while she recovered.

As Susan caught her breath, she looked up at Mark. "How was that honey?" She asked with a phlegmy voice.

Mark stared down at his moms face and saw she was an absolute wreck. Almost every inch of her face was drenched in frothy saliva, mucus and cum while more dangled from her chin. She'd never looked better to Mark before in his life, the sight alone almost made him hard again. "That was even better than last time! I had no idea you could do that mom, you're the best!" Mark replied with a dumb, wide grin.

Susan coughed and cleared her throat again. "Thank you honey, I'm glad you liked that. But it's late now and you should really get to bed," Susan said, tired from the throatfucking and eager to get to sleep.

"Alright mom, I will."

Turning to leave, Mark stopped suddenly. Only a second had gone by and he already missed seeing her messy face, he liked the way his mom looked so much, he didn't want to lose or forget it. Mark turned back around. "Mom? Do you think I could take a few photos of you? It's just you look so good right now and I want to remember this forever."

Laughing lightly at how cute her son was being, Susan just nodded.

Mark ran back to his room and found his phone. Coming back to his mom, he snapped multiple shots of her messy, debauched state while she smiled warmly into the camera. Mark thanked her profusely and excitedly went back to his room.

It was adorable to Susan how a little oral sex was such a huge deal to Mark, but she supposed at his age everything about Free Use was new and exciting to him. If this was how he reacted to just oral, she hoped he wouldn't fall in love or do anything crazy for the first girl to let him have her ass.

When Mark left, Susan went to the bathroom to clean herself up. She wasn't surprised by the cum and spit covered face that stared back at her in the mirror, boys she thought to herself with a mental sigh, they make such a mess.

Back in his room, Mark excitedly flipped through the photos he took, they were all so hot. He thought to himself, it might not be anal but it was every bit as good, probably. While looking at the photos, he got a sudden idea. Mark's friends still made fun of him for never having been in a girls ass, but he thought that maybe this might redeem himself a bit, after all, none of them ever talked about throatfucking anyone. Opening up snipchat, he made a story and sent the photos out to his friends with a caption reading 'look what my mom let me do'. It wasn't until after he sent the photos out that he realized he didn't know if his mom would approve or not. He hoped she wouldn't get mad.

~~~

The next day there was a surprise waiting at the door for Mark when he went to answer the doorbell early in the morning. Catching him by complete surprise, standing there was Megan. She greeted Mark with a wide smile and punch to the shoulder. "Hey loser."

Megan was Mark's older sister by a few years, she was supposed to still be at uni but had apparently turned in her final papers for this semester and driven all night to surprise him and their mom. She was going to spend a week of her break at home with the two before she met back up with friends to take a trip overseas.

"Hey Megan," Mark said with a growing smile, punching her back.

Susan came up behind the two and when catching sight of Megan rushed forward to pull her daughter into a huge hug.

"Hey mom," Megan said in a muffled voice, with her face pressed into her mom's shoulders.

"What are you doing here? You're not supposed to be here for another few days."

"Well I thought I'd surprise you. Besides, I thought it'd be nice spending an extra few days here."

"Oh honey..."

~~~

The three went out to lunch and then dinner, spending the day out talking and catching up.

If it had been just another random girl, Mark might have felt like a 3rd wheel but Megan and he were always close. It was always so easy for him to talk to her, the two could spend hours just going on about nothing.

The three got back home at night and decided to watch some horror movies. Susan only sat through one before calling it and going to bed, leaving Megan and Mark alone. Once the two were, Megan got up to grab a couple beers, throwing one into Mark's hands when she came back.

"I'm not old enough to drink these you know," Mark said with an arched brow.

"I won't tell if you won't," Megan replied with a shrug.

The two watched the next horror movie, loudly pointing out what they thought was dumb and mocking the stupid decisions characters made. Eventually Mark got a notification on his phone. Megan was going to mockingly shush him for having his cellphone on but stopped when she saw him looking upset.

Mark was watching a snip sent by his friend Owen who was repeatedly dunking his cock in and out of his mom's asshole, leaving it gaping wide. The caption on the snip read '#1 Mom'. The snipchat story Mark had sent out to his friends the other day had started something, and by now his friends all sent each other snips of being deep in some girls asshole. Every time he got one of their snips it would be just another upsetting reminder that Mark was the odd one out.

"OK loser, what's wrong? Boyfriend dump you?" Megan pressed when he didn't say what was bothering him.

Mark didn't so much as crack a smile so Megan sighed and tried again. "Seriously what's up?"

"It's nothing," Mark said unconvincingly.

"Doesn't look like nothing... Gimme that," Megan said, suddenly snatching the phone away from Mark.

"Hey!" Mark yelped, reaching for and failing to grab his phone back. Mark cursed his short arms.

"Huh, buncha girls getting buttfucked here, what's the big deal?" Megan asked while keeping Mark away with one hand.

Eventually realizing he wasn't getting the phone back without an explanation, Mark settled down and explained. "Those snaps are from my friends. They just, they keep rubbing it in my face that I haven't done anal with a girl yet."

"Why don't you just find the girls that consented to them?"

"That's the thing!" Mark said, suddenly livening. "None of them found a normal girl that consented; they all just got their moms to do it. I asked mom to let me put it in her butt too but you know how she feels about that."

"Oh is that all?" Megan said rolling her eyes. "Well why haven't you asked me?"

"Wait... What?"

Megan looked at him like he was dim. "I'm a girl and I've got an asshole don't I? So why haven't you asked me?"

"I-I uh, I don't know."

Megan rolled her eyes again. "If doing a girl in the ass is such a big deal for you, you should just do mine and get those friends of yours off your back."

"You mean it?" Mark asked excitedly, with a pounding heart.

"Yeah, it's no big deal, it's all yours bro," Megan said chuckling.

"But what if mom finds out, you know how she feels about anal in the family, what if she gets mad at you?"

"Oh my God, don't be such a baby. Besides, I'm 19, I can consent to whoever I want to. If you wanna fuck my ass, then I say you can, that's the law and mom can't do anything about it."

Megan didn't want to belabor the point so just got off the couch they were sharing and casually pulled down her shorts and underwear in one smooth motion before kicking them off to the side. She made her way to the one seater couch where she sat down, slouched back and hung her legs off the arms, giving Mark easy access to her holes.

Almost shaking with excitement at finally getting a shot at a girls ass, Mark forgot about his worries of making his mom mad. He pulled down his pants and approached his older sister.

"Wow, look at you. Didn't expect that," Megan said after getting a look at her brother's cock. After a moment of thought, Megan spat a little into her fingers then wiped it around the entrance of her ass before giving Mark the thumbs up. "You're good to go."

"Don't you need lube?" Mark asked confused.

Megan let out a sharp bark of laughter. "Dude, you aren't the only guy into anal, let me tell you. Trust me, you can just put it in."

The couch was too high for Mark to kneel and too low for him to stand, so Mark had to come in at an angle. Leaning down and supporting himself with his arms, Mark brought his face close to his sisters, close enough that her scent filled his senses, he hadn't realized how nice she smelt until now.

Unfortunately, having to hold himself up meant he couldn't grab his cock to guide it. Instead, he nodded toward his penis. "Megan, can you put me in?"

"Gotta do everything myself, fine sure."

Megan reached down and grabbed Mark's cock in one hand and brushed the tip of it up and down against the puckered entrance of her asshole, making Mark shiver with delight. After a moment she held it there and waited for Mark to press in. She didn't need to wait for long because Mark soon started moving his hips forward, eager to be in her ass.

Heart throbbing in his chest, Mark continued pressing into Megan. Despite only having a small bit of spit for lube, Mark quickly felt his head pop past Megan's sphincter and into her deliciously tight and warm rear. While Megan was still tight, Mark found he could sink deeper and deeper into Megan's rectum easily, she just continued to open up and let every inch of him in without pause. Within moments Mark was pressed tightly against his sister's ass, cock completely buried inside her. It was every bit as amazing as he imagined and more. Mark closed his eyes and enjoyed the sensation of his sister's anal walls tightly encompassing his cock.

When he opened them back up, he was staring into Megan's face and her shit-eating grin. "God, you're such a virgin, it's too cute, you're actually so precious," Megan said, reaching up to mockingly pinch Mark's cheeks with both hands.

"Shut up, I'm not cute," Mark said.

"Yes you are. I'm half expecting you to say you love me or maybe propose." She pinched him again.

Mark tried slapping her hands away but tilted to the side when he did. Quickly slapping his hand back down to steady himself, Mark had to endure his sister pinching his cheek and calling him cute. It wasn't all bad though Mark thought as he raised his hips up and drew himself out of his sister's ass before pressing back inside.

"So, that's anal, what do ya think? You like?" Megan asked as Mark slowly pumped into her.

"God you've got no idea how good it feels."

"And yet I'm not hearing any 'thank you'" Megan replied, tilting her head to the side and pulling an exaggerated face.

"Thank you, thank you, thank you, thank you Meg, you're the best sister ever."

"You're welcome," Megan said, while clenching and squeezing her anal muscles. "You like when I do that?" Megan said after seeing Mark's reaction.

"Please keep doing that."

Megan kept clenching her rectal muscles as Mark slowly sawed in and out of her. She gave him a smug look. "Learned that at uni, along with a couple other things like gaping. I'm getting pretty good at it too, you wanna see? You'll probably like it."

Mark had seen snips from his friends where they left their moms asses gaping, it was some of the hottest stuff Mark had ever seen and he was ecstatic his sister was offering to let him do it. He nodded eagerly.

"Well then start going faster, I need to warm up," Megan said, making a hurry up gesture.

Happy to follow the instruction, Mark sped up his thrusts until he was driving his hips into her as fast as he could. He couldn't believe he'd been missing out on this for so long and was depressed to think once Meg left, he wouldn't have another ass to pound. He resolved to use her ass as much as he could before she left.

After a few minutes of fucking her like a jackrabbit, Megan gave another instruction. "I think that's enough, now do the same thing, only this time you gotta pull all the way out before you put it back in OK?"

"OK."

Megan reached down again to delicately grab Marks cock with her fingers to guide him back inside her every time he pulled entirely out. He'd sometimes miss the Mark and slide below her or into her pussy but for the most part, Megan managed to guide him back into her asshole.

The sudden entrance and complete removal of so much cockmeat so fast, so often did its job and soon enough Megan was feeling stretched out. "Alright, now push all the way in one last time and keep it there."

Mark did as he was instructed and bottomed out inside her.

Megan then grabbed her asscheeks pulled them apart. "OK pull out now fast."

On the outstroke, Megan pushed out in sync and Mark was left looking at his sisters perfectly smooth, round yawning hole, almost as wide as he was. He loved to think he was responsible for leaving her ass like that. The sight didn't last for long as she slowly closed back up to his dismay.

"Oh my God," Megan said after seeing his face. "It's not gone forever dweeb, you just to put it back in and pull it out."

Mark happily dunked his cock back into his sisters asshole and renewed that deliciously erotic gape. He spent long minutes repeatedly dipping back into her and staring at the hole. Then crouched down so he could reach his fingers in to stretch and tease it, pulling it this way and that or seeing how many fingers he could fit.

"Having fun bro? I thought you wanted to fuck it, not play with it," Megan asked with amusement as he pulled open her asshole with three fingers on either side.

"How are you so good at this?" Mark breathlessly asked Megan.

Megan shrugged. "Dude, first years spend half their time like this. Everyone and their dad always wants first crack at new legals so we always get a lot of experience. I've had so much cock up my ass it almost feels weird not having any. This is almost a relief. Almost."

After managing to fit 8 fingers inside her, Mark decided to resume fucking her. Mark spent the next half hour assfucking Meg like a rabbit with Meg losing more and more interest over time.

Eventually Megan spoke up. "Sorry Mark, I'm getting kinda bored so, I'm just gonna leave you to it alright? If you slip out your gonna have to put it back in yourself." Megan reached over the side of the couch to grab her shorts and fish out the phone inside where she was quickly being absorbed by playing on it.

Mark didn't mind, as long as he had her ass he was happy. With her legs spread open wide, hanging over the arms of the couch, it was easy to rabidly pound into her ass with everything he had while Meg's eyes were glued to her phone. Mark was so glad his sister was OK with letting him use her ass like it was a toy, he only wished his mother felt the same way.

Eventually feeling the need to cum, Mark reached up and slid his hands beneath his sister's crop top so he could fondle her tits. For a moment he was worried she'd be mad he didn't ask but as his hands wrapped around her C cup tits, she didn't even react. Squeezing and playing with both of her juicy breasts, Mark relentlessly drove into her ass and took what he wanted from it, using it to bring himself closing to cumming. Finally pushed over the edge, Mark slammed home one final time and unleashed his load into his sister's ass, spurting rope after rope of cum inside, filling it obscenely.

Megan for her part said nothing as Mark emptied his nuts inside her ass, and didn't react when he flopped out wetly, neither did she move when the anal creampie he gave her began leaking out of her slowly and pooling against her ass.

Deciding she probably wouldn't mind, Mark rested his cock to the side of Meg's pussy and grabbed his own phone to take a few photos of Meg's gaped asshole leaking cum. This would finally get his friends to stop giving him shit over not doing anal with a girl yet he thought.

When Mark left the living room, Meg still hadn't moved from her pose.

~

Still in a horny mood from assfucking his sister, Mark got a filthy idea he just had to see through. Heading up to his moms room, he quietly crept inside. He came up aside the bed and pulled down the cover. His mom was sleeping peacefully in her see through nightgown, Mark thought she looked beautiful in it. He didn't want to disturb her with a throatfucking but he did climb onto the bed with her and straddle her face.

Cupping her face, Mark inserted a thumb in between her lips and pried her mouth open before slipping the head of his still wet, cum and spit covered cock into her mouth. It only took a few moments before he had his whole semi hard penis inside her mouth. He wiped it around inside her mouth, brushing against her cheeks for a while, using it to clean his cock off. Mark tried being quiet so as to not wake his mom but despite his best efforts she did eventually stir and wake up.

"Mmmmark?" Susan slurred out with a full mouth.

"Sorry mom, didn't want to wake you, just wanted a quick clean," Mark whispered back.

"C-clean? ...This taste... Mark, where has this just been?" Susan asked, her voice growing clear.

"Just inside Megan's ass for a little bit."

Susan frowned and slapped Mark on his stomach. "And just whose idea was that?" Susan asked.

"Uh, both of ours?" Mark said, not wanting to get his sister in trouble.

"Finish up quickly and get to bed. We're having a conversation about this in the morning young man," Susan said sternly.

Trying to be quick, Mark grabbed his mom's head with both hands and bobbed it on his cock while she sucked and licked it, though without the enthusiasm of the other day. Once Mark was satisfied his mom had cleaned off the leftovers of the anal creampie, he put his cock away and climbed off her. Giving her a quick peck on the cheek he went back to his room.

~~~

Susan argued with her daughter over letting Mark use her asshole but she didn't manage to get anywhere, Megan was right after all; it was her right to consent to those the Free Use Act didn't cover yet. Eventually the two worked out an unspoken agreement not to bring it up and spoil the week Megan was going to spend at home.

Mark could tell his mother disapproved every time he jerked off with Megan's asshole, but he couldn't help it. It was the best treat that his cock fit in perfectly, like it was made for him. He couldn't resist using it every chance he got while Meg was still there. Unfortunately it meant his mom refused to give him oral anymore so long as he was using Meg's ass but it was a sacrifice he could live with.

Mark stuffed his cock up Megan's ass while they hung out at home, when they went out to watch movies, at restaurants and cafes when grabbing lunch or dinner, even in the backseat of the car when their mom drove them around. Megan sometimes got annoyed with him but was a good sport about it most of the time, always letting him rub one out with her ass whenever he wanted to.

Mark didn't just fuck Meg either, he made sure to gape her out often and took lots photos to show off to his friends what a great sister he had. Mark was actually making a few of his mates jealous since they they'd never been in someone as young as Meg. The jealousy wasn't one sided though, Mark felt the same way about his mates since they got to do things with their moms that Megan never did for him.
Ass to mouth was one of those things that Mark was wild for but couldn't get out of Megan. All his mates had at one time or another gotten their moms to suck them off after an anal session but mostly everyone had the same problem as Mark. While sodomy was OK since it left their moms free to do other things, oral meant getting in the way of things and a lot of the time his friends would just get denied.

Out of his friends, only Bryan regularly got his moms to suck him off after anal. A fact he would constantly show off. While it was annoying to have your face rubbed in it, it still meant Mark and his friends got to enjoy the constant snips Bryan sent out of him casually buttfucking his mom while she got on with things before having her clean him off.

The latest video Bryan had shared was of his mom lying on her side on the couch bottomless while he slid his pole into her ass furiously. She wasn't paying him any attention and just kept reading the book she had while her son satisfied himself in her asshole. Every so often Bryan would pull out and clamber up his mom, presenting her with his cock. She'd take it into her mouth and thoroughly lather it with her tongue while never taking her eyes off her book. Mark sighed after watching the snip and turned off his phone. It wasn't that Mark didn't appreciate his sister, but he still wished she'd casually taste her ass off his cock the way Ben's mom did.

~~~

The day before Megan was scheduled to leave, she and Mark decided to have one last day relaxing at the beach.

~

When Mark walked back from the surf, he found Megan hadn't moved since he left her to go swimming. She was still lying on her beach towel soaking in the sun and getting a tan. Feeling a bit chilly himself from the water, he laid down next to her before snaking his arm underneath her back to lift her up and over on top of him.

"Hey! You're cold," Megan yelped as Mark grabbed her.

"And you're warm."

Megan huffed but didn't bother to reply. Knowing the routine by now, she moved along with him and scooted over to lay completely on top of Mark. Then absentmindedly spat into her fingers to lube her ass up slightly before she went back to trying to enjoy her tan.

Reaching down, Mark grabbed Meg's bikini and pulled the thin fabric aside exposing her cute bottom. Taking his cock out of his shorts, he lined it up with his favorite hole and thrust up into Megan, smoothly sliding his whole length inside her. He'd been using her so often these last few days that it was getting so easy to slide into her, lube and spit was more a courtesy than a requisite.

Megan greeted him with the familiar sensation of clenching and relaxing her anal muscles as soon as he'd bottomed out in her. Mark honestly didn't think she was even thinking about it at this point, it was just muscle memory to massage his cock by now.

Megan's legs were crossed but Mark reached up under them and pulled them apart, spreading her legs wide open. It felt less tight this way but Mark just got more of a kick out of letting everyone know where his cock was, even though no one cared.

While the two enjoyed their day at the beach, a voice called out to snap Mark out of his pleasant haze.

"Mark? Mark is that you?"

Mark immediately recognized Jordan's voice. Looking up, Mark saw his school mate there with their usual group of friends, he dimly just remembered they had invited him to hang out at the beach today but he had been steadfastly ignoring everyone but his sister the last week.

"Hey Jordan," Mark said.

While the two were friends, Mark was unhappy seeing them all here today since Jordan had been bugging him about trading ever since they all started sharing snaps. Jordan kept saying he could convince his mom to let Mark use her asshole but only if he could convince his sister to do the same. While Mark considered the idea for a little while, he decided he preferred keeping his sister all to himself. He'd told her about Jordan and his trading idea and how much he didn't like it, but he didn't think she was even listening. But now that Jordon was standing right here, Mark was worried he'd ask and his sister would just agree since she didn't care.

Jordan, seeing the fat cock stretching Megan's ass predictably only had one thing on his mind and got straight to the point. "Are you the sister we've been hearing so much of?"

Megan turned and smiled at the newcomers. "Yup, the one and only. I'm Megan, nice to meet you guys."

"It's nice to meet you too," Jordan said, the others murmuring similar.

"Hmmmm, lemme guess, you guys are the ones my brother's been snipchatting my asshole to lately."

"Yeah, that'd be us. But I wish Mark had snipped us more than just your ass."

"Oh?"

"Yeah, you're pretty, like really pretty," Jordan said awkwardly. "Mark never shares photos with your face so we didn't know. But now it all makes sense."

"What does?" Megan asked.

"Mark's been ignoring us all week and turning us down every time we try to hang out."

"That's because I've uh, been busy?" It sounded like a weak excuse to Mark even coming out of his mouth.

Jordan and Megan sarcastically spoke at the same time. "Sure you have." Mark internally groaned at that moment the two shared.

Megan chatted with Marks friends for a little while Mark tried to be a wet towel on the whole thing. Mark just knew it was coming any second, one of his mates would ask and Megan would agree and then he'd have to share her ass with someone else instead of having it to himself. Annoyed, Mark sped up the speed of his thrusts and starting bottoming out of Meg's ass while she chatted. Eventually the sound of the conversation was partially drowned out by the sound of slapping meat to the point where everyone had to raise their voices slightly.

The lewd noises very pointedly caught Jordan's attention and he was quickly at full mast. Eventually deciding he'd had enough pleasantries, he finally asked Megan the fateful question.

"Hey Megan?"

"Yeah?"

"We're all really good friends of Mark and I was just wondering if you could help us the same way you helped him."

It didn't come out exactly suave but there it was. Mark dreaded the next moment Megan would agree.

But it never came. Instead Megan pursed her lips and shook her head. "Sorry fellas, no can do, Mark's the only one that gets my asshole."

"What? Why?" Jordan untactfully blurted out.

"Because dickhead, you've been bullying him for not getting in a girls ass for who knows how long. So no, you can't have mine," Megan said, dropping the friendly act in an instant.

"It wasn't bullying," both Jordan and Mark said at the same time. Mark internally groaned louder this time, embarrassed his sister was defending him like that.

"Whatever, don't care," Megan replied.

Deciding he needed to fight his own battles, Mark slid out of his sister's asshole and gently put her aside before standing up. However before he could get a word out, he suddenly felt a warm, softness enclose his cock. Looking down he was surprised to see Meg had rolled over and stuffed it into her mouth.

This was crazy, Meg never did ass to mouth since it meant he'd get in the way of her phone or books or whatever and that's where she'd drawn the line. She'd known he loved it but never did it for him, until now. Out of all his friends, only Bryan had done ass to mouth with his mom and it had kinda become a Holy Grail slash goalpost for everyone else since. The fact Megan was doing it in front of all Mark's friends now would be making them all crazy jealous.

The guys all stared down in wonder as Meg expertly sucked Mark's cock that'd just been up her ass. After half a minute or so, Megan got off and to everyone's surprise, spun around and backed her ass up against Mark. She reached back with her hand, blindly grasping for Marks cock for a moment before finding it and inserting it back into her butthole. She rocked back on Mark seductively, arching her back and squeezing her tits together with her arms to give a better view, nothing like the bored movements she normally did at home.

"I've got a counter offer," Megan said, breaking them out of their reverie. Megan craned her head back to give Mark a conspiratorial wink before turning back. "I let you use my ass once, do whatever you want, and you convince your mom to let Mark come by and use them any time he wants."

The offer was similar to the one Jordan had made. But this time, it was a lot more enticing to Mark since it wasn't just one mom on offer. Mark might have wanted to keep Megan to himself, but if it meant six more asses opened themselves up to him, Mark could live with a bit of sharing.

"What? Just once? How's that fair?" Jordan complained.

"Because I'm 19 and I'll let you put it in my mouth when you're done, I know you all want to try that. Hell I'll let you guys do whatever you want, just so long as you all promise to give Mark your moms."

Some of the guys were hesitant. Not because they didn't want to get at Megan, but because they thought they might not be able to follow through with the promise, or were holding out for a better deal since a one off didn't seem like enough. Bryan however was less thoughtful and more horny so he didn't give it a seconds thought before agreeing.

"Smart boy," Megan purred. "Just remember to keep up your part of the deal, or else."

Megan slid off Mark and seductively approached Ben. Mark knew he was coming out ahead in the agreement but he still felt disappointment when Megan's asshole slid off his cock.

Megan caught sight of his disappointment. "Chin up dork, I just got you six assholes to pump as much as you like when I'm gone, so you're welcome," Megan said.

Mark forced down the momentary disappointment and looked at the bigger picture. "Thanks Megan, you're the best sister in the whole world, I love you."

"Now that's better."

Pushing Bryan down and onto his back, Megan straddled him and easily fit him into her behind before slowly sinking down on him. Megan gave him the same treatment she always gave Mark, clenching and unclenching her anal muscles.

It must have been new for Bryan because the reaction was immediate. "Oh my God, that feels so good," he breathed out.

"You like? I guess your mom doesn't do that does she."

"No, I've never felt that before."

Bryan couldn't have said anything more perfect because it was the straw that broke the camel's back, everyone else soon agreed to Megan's terms.

Jordan approached Meg and asked how long it would be until he got his turn. "You can go right now," Megan said, surprising everyone.

Megan got up off Bryan and spun around. Stuffing her face full with his cock, she bobbed up and down energetically while she reached back and spread her cheeks with both hands, presenting Jordan her asshole. As Jordan worked his way into her, she deepthroated Bryan, completely indifferent to doing ass to mouth for him.

Watching the display, it didn't take long before Jordan was balls deep inside Megan and pumping into her eagerly. After several minutes Megan would spin around and swap the holes the guys were using. The two eventually both decided to cum in Meg's mouth, she didn't find it hard to swallow down the extra cum. With those two taken care of, the next pair came up.

Eventually, one of the guys got a little braver and decided to see if they could get away with a little more. Instead of just fucking her ass, he'd try his best to get Megan gaping. Mark watched as his friend inserted four fingers into Meg's ass and pulled it open before then inserting his cock. It seemed a bit extreme. It made Mark feel a twinge of anger, partly because he was mad his friend was treating his sister so roughly and partly because he was jealous he wasn't the one doing it. Megan true to her word let it all happen without complaint, she had said she'd let them do anything. Mark loved her all the more for being willing to do all this for his sake. While it was frustrating to just watch as his friends had fun with his sister, Mark could hardly complain when this was all for his benefit so decided to stay out of it.

The obscene scene was like the opening of the floodgates and soon everyone was doing whatever they could think of to Meg's asshole. One of Mark's friends even spent his whole turn dunking his cock into her ass and then into her pussy, back and forth endlessly. Megan just grit her teeth through it all and put up with the sodomistic frenzy for her brothers sake. The guys all chose different places to cum, lots chose her mouth or face, some chose her ass or tits, a few selfish ones chose to cum inside her ass. It took Megan almost 2 hours of being spit roasted and buttfucked but she managed to get through every guy.

By the end, Meg was so worn out and tired Mark had to carry her to the showers and help her clean herself up. After, he carried her back to the car and laid her down in the back seats. Mark got a look at her asshole and was shocked by how brutalized it looked. It wasn't the tight, fresh hole he'd come to love, but it was a permanently gaping, angry red wreck. He couldn't believe she did all that for him and said as much. "Meg, I don't know what to say."

"Another thank you would be nice," she replied tiredly.

"Thank you, I love you Meg."

Meg pushed herself up and gave Mark a kiss on the forehead. "You're welcome baby brother." Megan let herself fall back down on the seats. "Now you'll have some ass for when I'm gone."

Mark shook his head. "It doesn't matter how nice my friend's moms are, I'll miss your ass the most."

"You're sweet." Megan closed her eyes and looked like she was about to drift off to sleep but suddenly opened them again slowly. "Wait, you never came today did you?"

"It's okay," Mark said, he knew Meg was completely worn out and just didn't want to put her through more, he could wait until tomorrow.

Megan thought differently. "Don't be silly, come here."

Lying on her side, she reached back with one hand and pulled her asscheek up, making her asshole gape open a fraction wider.

"Megan, really it's OK. Just get some rest, we can do this later."

"Come on, what are big sisters for. Get in here," she said, inserting one finger into her butthole and pulling it open while shaking her ass a little.

The sight and Megan's words were doing it and soon Mark was completely hard again. "You sure?"

"Of course I am loser."

Mark took aim and slipped his cock into her offered hole, sliding in with complete ease. She greeted him with the usual clenching, getting a sigh of satisfaction out of him. "I love you so much."

"Yeah, yeah."

Mark slowly slid back and forth inside Meg's asshole. After the beating it took, it wasn't as tight or fun as it usually was, but the psychological aspect was more than enough to make up for it. Wanting to be closer to his sister, Mark grabbed one leg and pulled it open before lying down on her, pressing her tits against his chest and fucking her asshole missionary. For the first time, Megan dropped the aloofness and actually reciprocated the intimacy. She wrapped her legs around Mark and pulled him into her, milking his cock all the while.

The slower paced sodomy and intimacy must have been doing something for Megan because after a few minutes, for the first time that day, she started moaning and writhing beneath Mark. It was something of a shock for Mark since Megan usually didn't react much when he was spending time inside her ass. As the minutes went by, the moaning and writhing didn't go away but only intensified. Soon Megan was hugging Mark tight, digging her fingers into his back and begging him to go faster.

Mark obliged and gave Megan's ass everything he had, plowing into it relentlessly for long minutes. It wasn't too long before Megan groaned underneath him and spasmed violently, clawing at his back as she orgasmed powerfully. Her orgasmic waves caused her muscles to tense powerfully, bringing Mark over the edge with her. Mark poured his load deep into Meg's asshole as she rode out her orgasm.

When Megan recovered, she saw Mark was wearing the smuggest look she had ever seen.

"Did you just cum?" Mark asked, the smugness not fading the slightest.

"No," Megan said unconvincingly.

"You just came." Mark repeated, the dumb grin on his face somehow getting wider.

Realizing how obvious it had been Megan relented. "OK, so what?"

"You never mentioned ever cumming from anal at uni, so that was your first time wasn't it?"

"Again, so what loser?" Megan replied, her cheeks starting to flush.

"I just made you cum from anal."

Megan covered her face. "You're never letting this go are you?"

"Nope. I can't believe all this time I had a massive buttslut for a sister. All those times you let me use your ass, pretending to not care, I bet you loved every second!"

Megan made a buzzer sound. "Wrong, I really didn't give a fuck. This was just... a statistical anomaly, that's what I'm calling it."

"Liar, you love it in the butt."

"Ugh, I already regret helping you out with your friends."

Almost soft by now, Mark went to pull out but Megan gripped him by the shoulders to stop him, she was full of his spunk and didn't want to let it all drip onto her car seats. She told him as much and the two awkwardly clambered back out the door so she could push it out, outside. Mark was standing outside, holding her up by the hips while she was still laying on the carseats.

Right as Mark plopped out though, Megan thought to herself, maybe she ought to reward Mark a little with something she'd never done for him before. She did end up enjoying herself and Mark was right, no one had ever made her cum from anal before. On a spur of the moment thing, Megan reached down and cupped her hand beneath her asshole as she pushed out the anal creampie. Mark watched mesmerized as the surprisingly massive load dripped into her waiting hand and pooled there.

After getting as much out as she could, Meg scooted out and stood up next to Mark, she liked that she was still a little taller than him at this point, it made her properly feel like a big sister. Bringing her cupped her to her mouth, she lapped the cum up like a cat, giving Mark a show of it, knowing how much he'd enjoy it.

Mark watched awestruck as Megan seductively ate his cum. Cum that had just been in her asshole he kept thinking. The filthiness of the act excited him beyond measure, it just seemed so depraved. Letting him do ass to mouth with her was one thing, but this was a step beyond even that, he could hardly believe his sister was willing to do it for him. The fact she was willing to go to such lengths for him made him appreciate her all the more, he desperately hoped this could be a regular thing too now.

"Don't push your luck, this is a one-off twerp," Megan said, as if reading his mind.

The intense disappointment Mark felt evaporated somewhat when Megan then sank down to her knees and popped Mark's softening cock into her mouth for a quick once over. Maybe it was just the fact she basically never did it that made it so special, but Mark absolutely loved putting his cock in Megs mouth after it had been up her ass. While it wasn't as extreme as eating the anal creampie he'd given her, it was a close second. It turned him on to no end that Meg was willing to be such a dirty whore and demean herself for him.

After polishing him off, Megan tucked Mark away and crawled back into the car to rest, she really was exhausted after all that.

~~~

The next week and a half were bittersweet for Mark and passed far too quickly. While he loved having her around, he knew she was going to head off soon on her trip and that he wouldn't see her again for half a year, maybe more. The knowledge sapped the fun from all the intimate moments the two shared.

With her stuff packed up and ready to go, Megan said her final goodbyes to Mark and her mom outside.
"I'm gonna miss you sis," Mark said pitiably, tugging at Megan's heartstrings.

"I'm gonna miss you too dork," Megan said softly as she pulled Mark in for a long hug. "Want one last one for the road?" she whispered into his ear.

Mark nodded glumly; he appreciated having a quickie, but knowing it was their last one for a long time spoiled things a little.

Their mom had overheard the little exchange and wanted to voice her disapproval but also didn't want to spoil the goodbye, so she settled for giving Megan a stern look before hugging her daughter goodbye and heading back inside.

Megan opened up the passenger side door and bent over at the waist, resting her head and chest on the seats. Reaching back, she pulled down her denim shorts to present Mark with her ass like it was a present. Knowing Mark wouldn't turn down a goodbye fuck, she'd prepared a little goodbye surprise for him.

Megan opted to wear something she'd thought Mark would love; it had an opening cut out that exposed her asshole and gave easy access to Mark's favorite hole. A hole that wasn't empty either, she'd plugged herself up the night before with a decently sized buttplug so that Mark wouldn't need to waste time building up to things and could just ram it straight in.

As soon as Megan pulled down her shorts and gave Mark an eyeful of what she was wearing, Mark's cock instantly sprang to life. Megan usually never took the effort to do this kind of stuff before, she usually didn't pay him much attention at all while he was taking her ass, so the change was new and exciting for Mark.

The buttplug inside Meg had a handle for a finger on the end of it, so Mark did the obvious thing and gently pulled it out. It tugged along the walls of Meg's asshole as it came out, her muscles gripping it tightly, refusing to let it go. When it finally pulled free it left Meg's hole gaping open slightly, open enough that Mark knew he could put it in without taking it slow. Mark had expected something small, maybe a golfball sized thing but what came out was surprisingly large, as thick as he was and only a couple inches shorter.

Putting the plug aside, Mark aimed his prick at Meg's asshole and pressed forward. He slid in easily down to the base, her ass swallowing him like it was the most natural thing in the world and feeling like liquid velvet. Every inch and stroke he gave her felt incredible, but despite how good she felt, how amazing it was she prepared herself for him, it only highlighted what he would be missing when she left. Mark struggled to forget the fact but it was a losing battle that sapped the enthusiasm from him.

Megan noticing Mark wasn't being his usual energetic self when he was inside her butt knew exactly what was bothering him. Not wanting their last moment to have a cloud over it, she tried one last trick to cheer him up. "Hey, I've got an idea, how about you put that plug in my mouth? How's that sound?"

Megan knew it had the right affect before Mark could open his mouth, she felt his cock twitch suddenly as she offered herself up for more demeaning. She obviously didn't feel that way about ass to mouth, nor did most people, but knew her brother did and that's why he liked it, even if he'd never admit it. It was a weird opinion to have but he was young and she was happy to indulge him.

Vivifying at the suggestion, Mark grabbed the plug and moved it towards Meg's face but stopped suddenly. Thinking better of it, he pulled out and returned the plug into her asshole, rapidly plunging it in and pulling it out several times first.

Megan chuffs and rolls her eyes at the treatment, thinking the plug had already been up her ass all night, a few extra dips in won't change anything, boys were so silly.

After roughly dunking the plug into her asshole as quickly as he could piston his arms for a minute, Mark pulled it out finally and brought it to Meg's lips, fresh out of her asshole. Unlike Mark, it wasn't a big deal to Meg, she didn't hesitate a moment before opening up and greeting it with her tongue, even loudly sucking on it for Mark's benefit. She sucked the plug into her mouth and swirled her tongue all over it, treating it like a lollypop and making sure Mark saw.

The effect was almost immediate, Mark was back to his old self and rutting her like a maniac once again. Megan kept her head craned to the side and watched Mark as she continued sucking on the buttplug, knowing what it did for him.

A while later Mark flipped Megan around so he could swap holes. Mark grabbed Megan's head and pressed it down on his cock, forcing it into the back of her throat. She managed to keep it together for the most part but once she felt his pubic hair tickle her nose, she couldn't help but gag on his meat. She sighed internally at still being so inexperienced when it came to deepthroating, only just then remembering to stick out her tongue to lick the underside of Marks cock and balls.

As Mark threw her head back and forth on his cock, making a mess of her face, Megan thought to herself she didn't understand why Mark had such a thing for ass to mouth. He always got like this, so much more handsy after doing it. She couldn't complain though, it was different but nice to be with a guy who actually got worked up about sex, it felt good to be actually be wanted so badly rather than casually used. She found it really cute and endearing the way her baby brother got so worked up with her. But on the other hand, Megan realized it would be disappointing the day he finally grew up and figured out doing ass to mouth with her wasn't such a big deal and started treating it normally like all like everyone else.

Megan realized she'd grown to like how taboo it was being with someone that the Free Use Act hadn't jaded yet. Taking her ass meant nothing to most people but to her little brother and his friends, it meant the world. She liked how much more into they were than any other guy she'd been with. The dirty thought of making it a habit crossed Megan's mind and she really considered it. The idea of being the first ass guys got to dump a load in excited Megan in a way that she hadn't felt in years. Megan resolved to consent to any guy that the Act didn't cover yet that tried his luck with her.

Mark swapped holes several more times over the next half hour before eventually powerfully spraying his cum deep into Meg's well used ass. Megan felt Mark tense and clutch at her. She felt his cock pulse inside her followed by spurts of warm cum that made her feel even fuller. Megan oddly enjoyed it, even if Mark did dig his fingers into her hips painfully to pull her into her, she liked how desperate he was to bury himself inside her when he was cumming. Megan kept up the rhythmic clenching and unclenching motion she always did to drain the last of the cum out of her brothers cock as he partially collapsed and onto her back, totally spent.

Megan felt his cum slosh wetly inside her, arousing her unusually. Ever since that day at the beach, she had a harder and harder time ignoring Mark while he got off in her ass. It was like Mark's naivete was rubbing off on her. She had to fight to stop herself from moaning or wrapping her arms or legs around him sometimes, not wanting to give him the satisfaction of knowing she did actually enjoy it. She knew he'd just tease her endlessly over it, as if he was the one doing her the favor.

As Mark wetly plopped out of her, Megan arched her ass up higher to keep anything from spilling out before quickly grabbing the buttplug and sealing his cum up inside her. He might have thought she did it for his benefit, but truthfully Megan got her own kick out of it too. With that taken care of, Megan turned around again to suck Mark off one last time.

Staring up at him with her big, pretty doe eyes and a mouth filled with cock that had just come out of her ass, Mark thought his sister never looked prettier than she did right then. "I'm gonna miss you so much sis."

With her mouth full, Megan couldn't reply but managed a smile in return.

~~~

Megan had spent the rest of the day driving to meet up with a few uni friends before they all flew out. When it got too late to drive, she stopped at a hotel for the night and decided to give her mom and Mark a video call.

Mark was quick to answer and showed up on her screen smiling brightly immediately. He was so much like a puppy Megan thought.

"I miss you already," Mark said.

"Well then go to your friends places, I did work out that deal for you remember?"

"I miss you though," Mark emphasized.

Megan chuffed and couldn't help but smile. "I miss you too loser." The two chatted for a while before eventually saying goodbye. Though right before they did end the call, Megan had one last surprise for her brother.

Megan brought into frame a shotglass. "What's that for?" Mark asked curiously.

"This, is for that creampie you gave me this morning. Just a little something to tide you over." The look on Mark's face alone was almost worth it Megan thought.

Setting her phone down somewhere stable, Megan backed up and turned around. Bending over at the waist seductively, Megan pulled down her shorts revealing the familiar panties and buttplug she'd worn earlier that day. She'd kept the buttplug in all day, letting Mark's cum soak into her.

Grabbing the shotglass she'd prepared, she placed the rim of it against her asshole as she pulled the plug out. Immediately the creamy white fluid that Mark had dumped in her ass poured out and filled the shot almost half way before it finally stopped. Turning back to the camera and getting real close up to it, Megan gave it a wink before she opened her mouth and slowly upended the Mark's milky white load onto her tongue, letting it slide to the back of her throat. When her treat stopped flowing, Megan stuck her tongue into the shotglass and lapped up what was left inside before tilting her head back and opening her mouth wide to give Mark a good look. She gargled the lurid concoction for a moment, playing up the filthiness of the act for Mark before she closed her mouth and gulped it down loudly.

From the reaction earlier that day, Megan knew that while Marked loved going from her ass to her mouth, watching her eat the anal creampie he gave her was on a whole other level. It was no different this time; Mark looked completely hypnotized as he watched Megan. It made her feel wanted in a way she seldom felt and she loved every second of it.

Mark was still pretty young and inexperienced so to him it must've seemed like the most extreme thing you could do for someone. But to Megan, it meant as little as a handjob or even hug, she just couldn't be bothered doing it for Mark most of the time. These days those feelings were changing though as she came to love her little brothers exaggerated naïve reactions. She resolved to enjoy it while she could and do it for him more often while he still felt this way about it.

With her show finished, Mark groaned half miserably, half in desire. Megan raised a brow. "Not quite the reaction I was imagining. You didn't like that?"

"I did, I did," Mark quickly blurted. "It's just... Look." Mark aimed his phone at his pants, showing Megan the massive tent erected there. "Mom's still mad at me for spending all that time buttfucking you so she's not letting me use her throat again. This thing is going to kill me Meg, really it is, I'm going to die from low blood pressure or something."

Megan laughed lightly. "Try talking to your friends and see if any of them have made any headway."

Mark hummed, he didn't think his friends had had enough time to convince their moms yet but it was worth trying he supposed. "Yeah I guess I could try that, it's better than dying a slow tumescence related death."

"Well you have fun and try not to forget me, love ya loser."

"I'd never. Love you Meg. Missing you heaps, bye."

Hanging up the phone, Mark started texting all his mates to see if they'd made any progress.
Free Use Family Pt. 02
Mark visits his friends' moms before coming home.
Note: Part 4 is boys competing over whose mom is the best, mostly dialogue. Part 6 is mostly mother-son incest. I couldn't be bothered figuring out what parts of part 5 broke site rules so just got rid of it all, no big loss, it was kinda weird.

*****

~ ~ ~ Part 4

Unfortunately for Mark, most of his mates hadn't convinced their moms or had even brought it up yet. The best he got was Bryan and Ben testing the waters and telling him it was looking good. But for now, he'd have to wait it out. He did get an invitation to hang out together at Bryan's though. And with Megan gone, Mark was finally ready to start spending time with his friends again.

The next day Mark biked over to his friend Bryan's place. He let himself in and found most of his mates already there with only Jordan and Ethan missing, they were typically the last to arrive for anything. Mark greeted his friends and sat down with them, though the four already there were deep into a heated Rocket League session and barely acknowledged him as he arrived. Though he hadn't spent time with them in weeks, it was quick and easy to fall back into the rhythm of talking and joking with them.

Jordan and Ethan finally did arrive and just as easily joined the banter. One of the guys eventually asked Bryan why they hadn't seen his mom yet. Bryan just said she was just out on some errands and would be back soon. Bringing up Mary had the effect of pointedly reminding everyone of the deal they'd agreed to and soon enough the guys were all ribbing Bryan about what Mark was going to do his mom. It was all in good fun but there was a slight undercurrent of jealousy there. Most of the guys had only ever been with two girls, a sister or mother and Megan. With Mark getting access to everyone's mom, he was going to go from least to most experienced very quickly.

Feeling that jealousy bite a bit more than others, Max started bragging about what his mom would let him do. That really kicked things off. Ever since Mark had started up the snipchat group with his mates, an unsaid competition had developed between them all to see who could get their moms to go the furthest and do the worst things. And since then, they'd all come a very long way.

"Well whatever you do with Mary, I bet it's nothing next to what my mom lets me do," Max boasted.

"Oh fuck off Max, your mom doesn't do anything all our moms do," Jordan said, rolling his eyes.

"That's like saying ten bucks and a hundred bucks are the same because they're both money," Max sarcastically retorted. "Have you seen how wide my mom lets me stretch out her asshole? I get to completely blow her out. Ethan is lucky if his mom even lets him bottom out or double dip. No one else holds a candle to my mom."

"Oh cool, so you've got the loosest mom, real lucky," Jordan replied, matching the sarcasm.

"She's not loose," Max said, frowning angrily.

"I think we can all agree that my mom's the best," Bryan interrupted.

Several of the guys disagreed at once and threw whatever they can get their hands on at Bryan.

"What? How is my mom not the best? She's the only one that does ass to mouth all the time," Bryan said, fending off the makeshift projectiles. "You guys have always been jealous and wished your moms did it like mine; don't even try to deny it."

Several guys tried speaking at once to do exactly that but Mark spoke over the rest of them. "Yeah OK your mom does do ass to mouth and everyone else is jealous of that-"

"Hey."

"-Shut up let me finish, but that was weeks ago and we've all done it at least once now, plus Mary is a real plain Jane, no offence Bryan."

Bryan opened his mouth to deny it, but after looking around and seeing several nodding heads, he quickly shut his mouth.

"Well if she's so ugly maybe I shouldn't bother trying to convince her to let you use her, you can just use your own mom. Oh wait, you can't because she won't let you," Bryan said sullenly.

Embarrassed at having his mom's weirdness called out, Mark ignored the second part. "I never said she was ugly, don't be like that man."

Ethan luckily spoke up before things got any worse. "Well I think I got you guys beat. It took some doing but I got my mom to start doing this stuff I saw on a porno once. I was going to send this later, but, whatever, check this out."

Ethan whipped out his phone and turned it towards the guys who clustered together to watch a video of Ethan jerking off while the tip of his cock was still inside his mom ass.

"Dude, I don't want to watch you jerking off."

"Just give it a second."

When Ethan eventually finished inside his mom Jane, he grabbed her hips and maneuvered her so she was squatting slightly before reaching out of frame to grab a glass. Placing the small glass underneath his mom's asshole, he told her she could push now. The vile, frothy liquid quickly ran freely out as soon as she did and filled the bottom of the glass. As soon no more of the fluid followed, Ethan went around and offered the obscene drink to his mom who was reading a book at the kitchen countertop.

Taking her eyes off her book, she addressed her son finally firmly but kindly. "Remember mister, this only keeps up if your grades do alright?"

"Yes mom."

Dropping the stern act, Jane's expression softened. "Alright then, you earned this." She placed the rim of the glass against her lips and tilted it up. Jane holds it there for long moments as the viscous fluid slowly crawled its way down the walls of the glass, drawing out the disgusting act. The anal creampie dripped into her waiting mouth and what was left on the inside of the glass was expertly licked up before Jane lightly gulped it all down.

Pulling back the phone, Ethan looked at the guys expectantly.

While Mark was impressed, the rest of the guys didn't seem that moved, Cole especially.

"What, that's it? You're mom just now started eating anal creampies? That's nothing man," Cole said, waving Ethan off.

"Cole's right," Jordan added. "I've done it a few times with my mom too and I don't even need to get high grades or anything. I just have to wait until she's not busy with work."

It was Cole's turn to look smug now. "A few times? That's cute, really. My mom says I can feed her an anal creampie once a day, sometimes even more."

"Every day? Seriously?" Ethan said, crestfallen. Ethan wasn't the only one envious. Mark tried not to let it show but he was burning with jealousy too at what his friends got to do.

"Yeah well it's not the quantity, it's the quality," Jordan replied, feeling a little slighted. "My mom's the prettiest so when she does it, it's better."

Cole was quick to snipe back. "That's not true. Mark's mom is the prettiest." Despite being an accountant, Susan looked like she could be a movie star.

Jordan had the response ready to go. "But she doesn't count because she doesn't do anything, isn't that right Mark?"

Mark might have wanted to deny it, but it was hard deny the truth.

"Plus, my mom doesn't just eat it out of a glass all neat and clean like that," Jordan added with a grin. "A couple times, I got her to lick it up off the floor."

Both Cole and Ethan's eyes went wide. Ethan was the first to find his voice. "You got your mom to eat anal creampies off the floor? Really?"

"Yup."

This time both Cole and Ethan shared the same look of jealousy and disappointment. The rest of the guys looked blown away by the news too.

"Why haven't you ever send us a video of that then?" Cole asked.

Jordan shrugged. "Because I didn't feel like it."

Wanting to impress the others more, Bryan spoke up uncertainly. "Yeah? Well I bet if I asked my mom, she'd eat as many as I wanted to give her every day, off the floor too, off anything I wanted."

The guys gave him disbelieving, skeptical looks. That just annoyed Bryan more and made him dig a deeper hole. "I told you guys my mom is the best. You don't believe me? I'll prove it. I bet if I ask, she'd let everyone give her anal creampies and eat as many as we wanted her to."

"Alright, let's see you prove it," Jordan smoothly said.

"What?"

"You said you'd prove it, so prove it when she gets back."

"I... I... I will," Bryan stuttered weakly.

The competitive conversation slowly died down and the guys went back to playing Rocket League and talking normally, except for Bryan who looked like he was stewing in anxiety.

When Mary did eventually come back home, all the guys looked to Bryan and egged him on. Eventually biting the bullet, Bryan went up to his mom while she was sorting through letters at the dining table.

"Hey mom? Can I use your ass for a bit?" Bryan asked softly.

"Hmm? Oh sure honey, here you go," Mary replied as she scooted back over the edge of the stool and pulled down her underwear a little, just enough to give her son access to her ass.

"Uhm, could we do it outside? In front of my friends?"

Mary laughed lightly. "Oh so now we're not embarrassed to hang out with your mom are we? Just give me a minute and I'll be out soon."

"Thanks mom."

"It's fine honey."

When Bryan came back empty handed though, the guys immediately set to mocking him but he quickly fended them off by saying she'd be out soon and they'd all see she was the best.

Just like she said, after a minute Mary did come out and greeted everyone. "Hello boys, I hope we're having fun today?"

Most of the guys replied with a few platitudes, except for Jordan. "I think we're about to have a lot more," he said, earning him a punch in the shoulder from Bryan.

"Hey! I was just joking."

Mary rolled her eyes at the display and went down to her knees in front of the boys onto the hardwood floor. Mark noticed she didn't even bother to get a cushion for her to knees to rest on and knew it would soon get uncomfortable for her. He was annoyed that Bryan didn't even seem to notice how good he had it.

"Here you go sweetie, you boys enjoy the show too."

A chorus of 'thank you's' followed. Bryan was quick to mount his mom and bury his pole inside her ass. That was the easy part; the hard part was getting her to go along with things later. Bryan really hoped she'd just go along with it instead of embarrassing him in front of all his friends.

While Bryan started off nervously, but it was hard to stay anxious when you were balls deep in a girl's ass and he soon got back to his usual self. Wanting to show off how easily his mom would taste her ass off his cock he started getting his mom to spin around on her hands and knees so that he could put it in her mouth after quickly slipping it into her ass. Bryan even went as far as constantly rubbing his cock all over his moms stuck out tongue after dipping it into her asshole every chance he got. The guys had a good time watching but a few of them tried to act unimpressed. A couple of the guys also began to surreptitiously film on their phones too.

"Wow, Mrs. Lane you're really good at that. My mom always makes a face when I do it," one of the guys complimented.

"Well thank you, I have had a lot of practice. It's Bryan's favorite thing to do, though I'm sure you all know that. He's always filming this and that these days."

The ass to mouth merry-go-round continued for long minutes before Mary suddenly spoke up after remembering what her son had said. "Oh Bryan, that friend you told me about, the one with the strange mom, is he here?"

Mark raised his hand. "Hi, yeah, that'd be me. Bryan told you about that?"

"That's right, Bryan told me all about your mother's strange views and your sister's recent visit. You poor thing, now I know it isn't my place to judge, but your mother is certainly odd."

"Yeah she's like that."

"Well Bryan explained things to me and I'd be happy to help out."

"Wh-Really? Just like that?"

Mary shrugged as Bryan popped his cock into her mouth. When Bryan left her mouth and went back to her ass, she continued. "It's no problem dear, you can join in now if you'd like?"

"I'd love that thanks Mrs. Lane."

"You're welcome Mark."

Mark quickly joined Bryan and the two shared Mary. With him being part of the fun while the rest only got to watch, the envy got a bit more intense for the rest of the guys. As Mark swapped between Mary's mouth and asshole, he felt a bit guilty about the plain Jane comment he'd made earlier. It was true but seeing her so easily taste her ass off his cock made it feel uncharitable.

Mark was a lot like Bryan when it came to doing ass to mouth, he just completely loved it. There was nothing better than seeing a woman suck his cock right after it had left her asshole, still wet with her own juices. It felt so incredibly filthy and immoral but they did it all the same carelessly. Mark loved them for that.

As the minutes went by, the two enjoyed degrading Mary by going back and forth between her holes. Eventually though they had gotten their fill and were nearing the edge. Typically Bryan would pull out and unload in his mom's mouth but this time he stayed inside. Gripping her hips and throwing himself into her one last time, Bryan surprised his mom by filling her ass up with cum.

"Oh, Bryan honey I thought you liked to finish in my mouth?" Mary slurred, talking around Mark's cock.

"I do mom, but I just wanted to try something different today," Bryan said, in between grunts.

Bryan pulled out of his mom, his cock wetly flopping out as he pulled back. While Mark continued to facefuck her, Bryan pressed down on the small of her back so her ass tilted down. Taking a breath and praying she wouldn't deny him, Bryan politely asked his mom, as if it was a usual thing, if she could push out his cum. With her mouth still full, she couldn't question it but did hesitate for a moment. Though only for a moment, before she thankfully followed Bryan's instructions and forced out the load he had shot up her ass. It splashed wetly between her feet, dollop by dollop.

When Bryan saw no more could be pushed out, he signaled Mark to let go of his mom for a bit. This was it, the final stretch. Bryan prayed again his mom wouldn't kick up a fuss about this. Spinning her around one last time, Bryan grabbed the back of his moms head and gently pushed it toward the mess on the floor.

Confusion was clear on Mary's face for the first few seconds before comprehension finally dawned on her. "Bryan, did your friends put you up to this?" Mary said sternly, her eyes going slightly wide.

"No mom, I just... I just wanted to show them you were the best."

"That's sweet honey, but I just want you to remember you don't have to do anything you don't want to alright honey? Just do what you like, you don't have to try and impress them."

"I want this though mom, I want you to lick it off the floor."

Mary nodded solemnly and let Bryan press her face into the lewd mess on the floor which she easily started lapping up. "Oh where are my manners. Mark, did you want to do the same?" Mary said, part way through licking up her sons mess.

Excitement didn't begin to cover what Mark felt. "I-I would really like that Mrs. Lane."

"Well go ahead whenever you're ready."

The fact Mary suggested it herself rather than needing to be asked set Mark off and he started rutting into her furiously as she seductively licked at the cooling jizz on the floor.

While Mary had stoically been enduring the building pain in her knees from the floor quietly so far, the desperate pounding that characterized Mark then was a bit much and she couldn't help but groan in pain. The guys being oblivious mistook it for enjoyment and a chorus of impressed comments followed. Mary felt amused by their naivety and didn't feel like correcting them so kept quiet, busying herself with lapping up what was left of her son's cum.

Once Mary had gotten all of it, just before she was about to swallow, her son stopped her. "Wait, mom, could you open your mouth and show my friends first?"

Mary rolled her eyes at the request but did it all the same, noticing for the first time the cameras pointed her way. Boys she thought. She opened her mouth wide, showing off the cum she'd pooled there before gulping it all down loudly.

While the interruption in her day was a bit annoying, Mary was secretly glad Bryan had asked her to do this. She had been worrying recently that her son wasn't developing a healthy appetite properly like other boys. After all, all he ever did was ass to mouth at most and rarely if ever pushed the boundaries. In fact, she was the one that had to coax him into trying ass to mouth in the first place. Mary was glad his friends were finally being a positive influence on him and hoped this wasn't a one off.

The display did it for Mark and he finally exploded deep inside her. Repeating what Bryan had done, Mark guided her face towards the new mess she had to eat.

Less concerned with Mark than her own son, Mary skipped the slow lapping she had done earlier and simply vacuum up his creampie quickly with pursued lips. Wet, slurping sounds were the only sounds in that room as the boys watched rapturously as Bryan's mother made a whore of herself by slurping up the anal creampie she'd just gotten off the floor.

Offering the boys another look she briskly swallowed it down, happy she could get back to her day and off her sore knees. Though after standing up and seeing the state the boys were in, Mary felt a stab of guilt.

Cursing her own empathy, Mary sighed internally, she knew she couldn't leave them in that state. "Bryan, I don't think it's fair the rest of your friends only got to watch," Mary said, her bright voice betraying none of the exasperation she felt. How she wished she were a little more apathetic. Addressing the boys, she continued. "Did you boys want to try doing the same?" she asked.

Mary hoped a few of them would turn her down. Her knees ached terribly and she really had a few things she had to take care of. Unfortunately for her, every single one of the boys began eagerly nodding.

Mary clamped down on her sigh before it could get out and got back down onto her hands and knees with a wince as another pair of boys took her mouth and asshole. This was going to be a long day Mary thought.

After almost an hour and a few of the boys having seconds, Mary finally finished satisfying all of them. She'd hadn't eaten more semen off the floor since her old college days.

"Mom?" Bryan asked as everyone was recovering.

"Yes honey?"

"Can we do that more? I really liked it."

Mary felt relieved that it wasn't just her son trying to impress his friends. "Of course we can honey, we can do anything you like."

Mark spoke up. "Mrs. Lane, can I do it with you too?"

"Yes Mark, I told Bryan I'd help you out so don't you fret."

The boys looked at each other with wide, dumb smiles.

Mary shook her head at the display. She got up to get cleaned off but when she saw the looks on the rest of the boys faces, her damnable empathy kicked in and she couldn't help herself. "That goes for all of you too, I'm happy to help out all of Bryan's friends," she said reluctantly.

The boys left very happy.

~ ~ ~ Part 6

Mark couldn't find a replacement for Mary but thanks to his sister's efforts, he still had half a dozen assholes he could satisfy himself with so it wasn't all bad. The only thing that bugged Mark was that his mom still kept up the cold shoulder treatment and refused to do anything for him, he had seriously underestimated how upset she was over using his sister. So with no one at home to satisfy him, Mark spent practically all his time at his friend's houses enjoying their mothers. This kept up for days, then weeks before something changed.

~

Susan had hoped by denying Mark for a while he'd learn his lesson. She hadn't counted on the deal her daughter had arranged for him and instead, all she managed to do was push him away. Of late, Mark had grown increasingly distant and hardly spent any time at home. She saw him less and less and when she did, it was never warm between the two, only cordial. After almost two months, Susan decided she couldn't take it anymore and wanted things to go back to normal with her son. She thought the best way to go about it was offering to do oral for him again, but things didn't go as planned.
When she offered to blow Mark under the table at dinner, Mark surprised her by telling her she didn't have to. Susan tried not to let it show how much it bothered her, but it stung a little that her boy turned her down. What made matters worse was after dinner Mark had told her he was going over to one of his friend's houses. She knew exactly what that meant. It grated her that he'd turned her mouth down in favor of some other woman's asshole.

Over the course of the next few days, Susan tried a different approach. She tried enticing her son back to her. Each day there'd be shorter skirts, smaller tops and progressively more sluttiness. It was all actually rather new to Susan. Ever since she was young she had been acutely aware of just how attractive she was and so never bothered trying to accentuate it, knowing it would just bring her more trouble than it was worth. Susan usually never wore much makeup and had never got into it like other women had, but had since started looking up tutorials on smokey eyes and other seductive looks she wanted to try on Mark. She'd even gone out to buy things she typically didn't wear; slutty accessories she'd seen on young women like chokers, crotchless panties, open corsets and garter belts with lacey stockings.

When Mark still left to go over to his friend's, Susan kept going further. She'd picked up the habit of sitting open legged or bending over at the waist in front of him. The crotchless panties and open corsets that were practically her uniform by then made sure Mark constantly got an eyeful. She even went as far as masturbating right in front of Mark in the living room, then walked around with her juices still trailing down her thigh. It worked, but not in the way Susan intended.

It had an obvious effect on Mark and he was visibly hornier than ever, but instead of asking her to take care of him when she was right there, he'd just run off to his friend's houses instead. It was endlessly infuriating and upsetting Susan because Mark just kept drifting away. The last thing Susan tried was wearing a buttplug for him; knowing how much he liked anal. She thought maybe it would be enough to make him want her throat right then and there. She chose a long beaded type with a handle that would stick out and be obvious.

The second Mark came home and saw her wearing it, he was practically drooling and Susan knew it. She thought he'd finally ask her to take care of him again but instead, he practically ran out of the house. Intensely disappointed, Susan wondered if keeping to her old fashioned sensibilities was worth losing her son to other women. She decided it wasn't. She decided she would give him her ass.

The next day she got up early and made her way into Mark's room. She wanted him to have a surprise when he woke up. Dolling herself up, she wore the panties and corset Mark liked best, cute, pink overly girly things that she never tried before. The panties had an opening cut out at the front and back for both her holes. She knew which one Mark would want so made sure to stretch herself out by plugging herself up all night.

Ready as she'd ever be, she crawled into bed with Mark. The motion made Mark stir but he didn't wake. She reached a hand into his briefs and stroked his cock to life. As soon as it was hard Susan went under the sheets herself and wrapped her mouth around it, getting it ready.

Still half asleep, Mark moaned his sister's name as Susan worked his cock with her mouth. The name made Susan feel a twinge of unreasonable jealousy. She'd seen how close Mark and his sister had grown when she was visiting. Susan had always wanted that kind of intimacy with her son but had never been able to connect the same way; it made her feel like a failure of a mother. The feelings only got worse when she realized his friend's mothers were the ones taking care of him instead of her.

Susan promised herself in the moment that things would change. She'd make every effort, go to any length to keep her son from drifting away from her again, to connect with him on the same level Meagan had. Pulling off the sheets and straddling her son, she took out the plug she wore and worked his slick cock into her asshole. Having worn a plug all night, it felt easier than it had any right to be for her to swallow every inch of him.

But it was still difficult. Mark was even larger than her husband at 9" and incredibly thick. None of her coworkers were as large and only the occasional stranger matched him. And anal sex wasn't something she'd ever grown to love like other women had; it'd always been a struggle for her. But she'd been practicing for this. She wouldn't let a little discomfort get in the way of growing closer with her son. She breathed deep, gritted her teeth and did her best to ignore the sensation of being stretched uncomfortably open as Mark's cockmeat filled her up more and more.

By the time Susan worked it all the way in, she had never felt fuller. It felt like Mark was filling every corner of her, like his cock was perfectly shaped to stuff her asshole to the absolute brim. Susan found it surprisingly pleasant to her shock. The discomfort she always felt during anal slowly faded as his cock settled inside her. Experimentally, she ground her hips against him, stirring herself with his cock. She felt him shift inside her. The motion forced a pleasant shiver from her. Relishing the sensation of fullness it gave her, Susan kept it up.

It didn't take long before Mark woke up. The first thing he saw when he opened his eyes was his mother straddling him and his pole buried to the balls inside her. The view quickly burned away the morning fogginess in his mind. He thought he was in her pussy but the texture and tightness told him differently. But that couldn't be right he thought, she was completely opposed to the idea. Mark figured he had to be dreaming.

Seeing him wake, Susan greeted him. "Good morning honey."

"A-am I in your ass?" Mark asked dumbfounded.

Stopping her grinding, Susan leaned back so there could be no mistaking it when Mark looked down. He was balls deep in her ass.

"Mark. I've seen what being old fashioned has done to us and I don't want it to continue," Susan said in a more serious tone. "I hate seeing you run off constantly and never stay home. So I've decided to consent to Free Use for you. You can have my ass now baby, as much as you like."

The decision came as a shock to Mark, he still thought his mom was angry at him for using his sister and all the teasing lately was just her way of punishing him. The fact she was giving him consent to use her was staggering him. After years of telling him it was wrong and inappropriate, she was finally relenting. Mark could hardly believe it.

"You mean it mom? Really?"

"Yes honey, anything you want, you can have."

Happy didn't begin to describe what Mark felt. All he could manage was a staggered 'I love you mom'.

Wanting to give Mark a good first taste of her ass, Susan lifted herself up and prepared to ride him. The pleasant fullness she got from his cock was replaced by a feeling of uncomfortable emptiness as she pulled off him. But that in turn was replaced by an even more intense pleasure as she slid back down it. It wasn't just a pleasant fullness now, it was like every nerve inside her was being brushed and electrified as Mark's thickness slid in and out of her.

Susan had imagined she'd have to endure some discomfort to make Mark feel good but hadn't planned on being so satisfied herself. It was unusual in that typically when her husband, coworkers or strangers sodomized her, she'd just bear it stoically. Now though, it was actually... fun, which was new to her. Susan rode Mark faster and faster as the minutes went by, with all the excitement of a virgin. Soon enough, Susan was lifting herself almost all the way off Mark's cock, until only the tip was left inside her before letting herself drop bodily back down. The sudden reentry into her rectum set her nerves on fire deliciously. It'd been less than half an hour since they'd started but Susan had already learned she loved feeling Mark's thickness stretch her open and fill her up again and again. It felt so right and perfect, like he belonged inside her.

Eventually Mark broke her reverie by pushing her onto her back so he could take charge and assfuck her missionary.

Susan felt a momentary disappointment she couldn't control things anymore but thought as long as Mark kept filling her, she'd be satisfied.

Maneuvering her around, Mark had Susan hook her legs open with the crook of her arms. Mark partly did it because it gave better access to her asshole but moreso because he loved the way she looked, submissively holding her legs open and giving him her hole. Grabbing two handfuls of her tits to play with, Mark used his mother's asshole to his hearts delight. The fact she'd denied it to him for so long made it so much better to take it now. Only minutes had passed since he started and he already felt like he was going to cum soon. Not wanting his first anal session with his mom to be so vanilla, Mark tried a few things with her to find where the lines were.

Susan stared up at her son with nothing but love even as he began to abuse her asshole by pulling entirely out of her only to shove himself back in to the hilt roughly while pulling her nipples and squeezing her tits. If anything, the new act only made her look even more lovingly at her son. It felt even better to Susan than simply leaving it inside. The emptiness followed by sudden fullness was the strangest, most arousing sensation, it made it easy to ignore the harsh treatment her tits were going through. In minutes, Susan knew her asshole was gaping lewdly from the punishment it was taking, but didn't care. If Mark wanted to split her ass open, she'd let him. She had a lot to make up for.

Close to the edge, Mark decided to bite the bullet and push the boundaries again. He asked Susan if he could put it in her mouth. He just had to try doing ass to mouth with her. Remembering the reaction he'd gotten the last time he tried it, he didn't hold out much hope. But Susan surprised him by agreeing without hesitation. Surprised but ecstatic, Mark went about things slowly, trying to savor and remember every moment. He pulled out of Susan's asshole glacially before clambering up his mom's chest and presenting her with cock, still glisteningly wet with her ass juices.

Susan stuck out her tongue and offered up her mouth and throat to be used. Mark slid his filthy cock over the offered tongue into her mouth, making her taste every inch of it. The fact his mother was willing to do something so slutty and be such a whore for him made him almost explode right then and there. But he wasn't willing to finish just yet, now that she'd finally given herself to him, he needed more. Mark forced himself to calm down before pulling out of her mouth and working his way back into her ass. Mark felt like he needed to make up for lost time, he wanted to treat Susan bad, to make her taste her ass off his cock as much as possible.

He might have wanted to keep it up for hours but only lasted ten more minutes. Finally getting to use his mom was too good. Mark spent the 10 minutes relentlessly degrading his mom with a frenzy of ass to mouth. He went constantly back and forth between her mouth and asshole; endlessly suffocating her with cock that came fresh from her ass before he was finally ready to unload in her.

Staying inside her for the final stretch, Mark pummeled his mom's ass with everything he had. Having been denied for so long, he was almost ravenous with how he used it now. Mark pounded down into Susan, roughly forcing nine inches of cockmeat into her ass so fast it made her skin ripple. Not being used to someone his size, Susan was quickly reduced to a mewling mess as her son battered her asshole open. Mark didn't care about the damage he was doing though, so close to the edge the only thing on his mind was pumping his cum up her ass.

Susan beat Mark to the finish line though. The perfect, engulfing sensation of her son filling her ass was too much. Every stroke Mark gave her made her fuller than she'd ever felt before. The way his thickness dominated her as it stretched her asshole painfully to the limit was more satisfying than any sodomy she'd ever endured in the past. The way she felt so small and dominated beneath him as he destroyed her asshole for his own pleasure felt so right, so perfect. It felt like she had discovered her purpose in life. The thought that it was her job to take Mark in the ass flashed through her mind just as she orgasmed powerfully to her shock.

Riding out the wave of pleasure clutching her son, Susan was quietly but intensely surprised she'd cum. With absolutely no attention given to her pussy, with nothing but brutal sodomy, she'd cum. She hadn't realized she was such an anal whore or that she'd been missing out on so much. Susan thought to herself that keeping her son satisfied wouldn't be much of a chore after all.

Staying inside her, Mark decided he'd try one last thing. If his mom let him have her ass, let him do ass to mouth with her, maybe she would swallow his mess for him. Reaching over to the end table at the side of his bed, Mark grabbed his phone and an empty cup then prepared to give his mom a drink.

"Mom, Mary always drank my cum after I finished with her, I was hoping you could do the same," Mark said in his most innocent, hopeful voice.

Susan knew immediately what her boy intended and the idea momentarily made her stomach churn. But she'd promised herself she'd go to any length for her son, so she instead steeled herself. "Anything you want honey, I'll be happy to."

With an ear to ear grin, Mark started filming with one hand and using the other placed the rim of the glass underneath his mom's asshole. Mark pulled back, his cock plopping out with a wet sound. The cum he'd shot up her ass immediately poured out of her gaping hole and filled the bottom of the cup by a couple centimetres. Susan had drained him dry in a way none of his friend's moms ever had. It was almost shocking how much cum flowed out of her. When the flow slowed down to nothing, Mark inserted a couple fingers and swirled them around to get out any stubborn leftovers. Satisfied there was nothing left inside her, he handed the obscene drink to his Susan.

"Here you go mom."

Sitting up on the edge of the bed with a wince, Susan took the offered cup and mentally prepared herself to gulp down the disgusting fluid. Semen was one thing, but she'd always struggled when men had her drink it after it'd been up her ass. She just didn't have the stomach for it like most of her friends did. Taking a breath, Susan lifted the glass to her lips with her eyes closed.

Mark stopped her half way. "Wait, mom, do you think you could tip the glass and pour it into your mouth instead?"

It was a fight to keep her face from scrunching up at her son's suggestion, but Susan forced herself to smile warmly at him and nod. If it's what he wants, it's what he'll get she reminded herself. Lifting the glass up, she tilted it and poured the warm ejaculate onto her outstretched tongue and open mouth. Susan was surprised for the second time that day when she felt hardly any revulsion when her sons cum touched her tongue and filled her mouth. It tasted much the same as any other anal creampie she'd been made to eat but the knowledge that it was one her son gave her rather than some stranger somehow made it better.

Susan experimentally swirled her tongue around, sloshing the creampie around in her mouth, testing to see if it would bother her. But amazing;y, she found she didn't mind one bit. The knowledge the cum she was playing with in her mouth came from her ass didn't revolt her at all the way it usually did, and all because it was Mark that gave it to her.

This must be what my friends feel like when they do it she thought. Susan noticed how much Mark seemed to like it when she swirled her tongue around so she decided to give him and his phone more footage. She continued to swirl the cum around her mouth and even gargled the creampie for a little while before gulping it down seductively for him.

"How was that honey, did you like it?" she asked him sweetly.

"I love you," Mark said dumbfounded by his mother's sluttiness.

Susan couldn't help but smile at the earnest way her son said it. "Well, get used to it sweetie. You've got my consent for Free Use now. You can have as much fun with me as you like honey."

Mark gulped. "That means we can do this all the time now right?"

Susan chuffed at how eager her son was. "Whenever you want Mark."

Mark leaned down and kissed his mom on the cheek before hugging her tight. "You're the best."

The two chatted for a while before getting up to get cleaned off. In the bathroom, Susan stood in front of the mirror and stared at the aftermath of her session with her boy. Her asshole was a gaping ruin that refused to close. It had been in similar states before and she always felt mild annoyance when she saw it back then. But now? Susan felt a perverse sense of pride. The swollen red flesh, dull throbbing sensation and yawning orifice was like a badge of pride to her now. She felt like she had done her job as a mother and satisfied her son the way she was meant to. But that wasn't all Susan felt, she was happy and satisfied from the sex in a way she hadn't felt in a long time.

Susan closed her eyes and fondly recalled the way Mark filled her, stretching her to the absolute limiting with every stroke. She found herself growing wet at the memory of her son dominating her so thoroughly with his thickness. He just filled her so perfectly; the thought occurred to her again that her asshole was perfectly suited to taking his cock, that it belonged in her asshole. As Susan cleaned herself up, an unfamiliar thought filled her head; she hoped he would use her again soon.

Susan didn't need to hope very hard because Mark planned on doing nothing but using his mother. Mark wasted no time. The very next morning while Susan was eating breakfast, he filled her ass again but pulled out at the very last to let the mess spill onto the floor. There was a lot of catching up to do so Mark had no intention of slowly building up to things. His mother had said he could do anything he wanted and he took her at her word.

Mark nodded towards the splattered puddle of semen that had spilled from her asshole. "Sorry, no cup this time mom," Mark said, while holding his phone and recording as he always did.

Susan chuckled, rolling her eyes at Mark. 'Boys' she thought before getting down on her knees and setting about cleaning up the cooling cum.

Licking up an anal creampie off the floor was quite the way to start her day but Susan still didn't mind so long as it was Mark's. She pursed her lips and dragged them along the linoleum flooring, vacuuming up every drop of Marks cum. When she'd finally gotten it all, she looked up at Mark and his camera while still on her knees. Opening her mouth, she gave him a view of what she'd collected. Giving him and presumably his friends a wink, she gulped down the creampie casually and went back to breakfast.

The assfucking Mark had given her that morning wasn't as satisfying as the previous night but it still left her with a pleasant, dull throbbing and stretched sensation that made her feel warm inside; she'd done her job again.

The anal creampies had quickly became a staple of Susan's diet as Mark took every opportunity to feed her them, but Mark wasn't content to just feed them to his mother. He started using them as tools to further dominate and humiliate her. Taking a shotglass of the vile concoction, he'd pull back one of her bra cups and instruct her to press the tit down so he could pour the cum into the space and make her wear the creampie all day. Making her wear his cum was one of Mark's favorite things to do. Every time the two went out together, he'd pour the anal creampies onto her face and make her wear the mess for everyone to see.
Mark soon realized his mom was even better than Mary, she was actually the best out of all his friend's moms. She was prettier than Jordan's, let him gape and destroy her asshole like Max's, ate anal creampies like Mary but best of all, she always had time for him.