[Size Difference, Watersports, Vomiting, Breeding]

"So why'd you ask me to come with you again?"

"Because I thought you'd enjoy it. I mean, you keep telling me how you get inspiration, can't this help?`"

"I fail to see how babysitting's going to help."

"Oh don't worry about it, we'll figure something out. Besides, we don't have to pay for anything while we're taking care of the tyke. You can drown yourself in soda if you want."

"You wildly overestimate just how much pop I drink."

Two strange friends were conversing as they walked down the street of a rather formal looking neighborhood. Not a place you'd usually see a fat-tittied writer and her plump-bellied friend, but they were known for picking up odd jobs when things started getting dire.

The one that had gotten this idea in the first place was the black-haired and green-sweatered Bridgette, who grinned a bit as she adjusted her glasses. "I know exactly how much you drink, I've seen the cans you've been trying to hide." Despite her own very noticable girth, which was more evenly distributed compared to her suited companion, she thought that she could afford to tease her for some of the habits she also had.

"I drink one a day at most, I just haven't had the time to take out the trash." Her heavy-bosomed companion, Hato, just shook her head ever slightly as her melons swayed with the same tempo. "If you want to tease me about something, tease me about being lazy." She said before pinching part of her companion's muffin top. "Because you're not far behind if we're talking overindulgence."

Bridgette narrowed her eyes a bit as her friend pulled her hand back. She didn't have to rub it in. Well, she had to, considering she was the one that started it. "Where is that brat's house anyway? We've been walking for a good half hour, why couldn't we have taken a car or something?"

"Your car got impounded because they found you screwing somebody in the back seat, you're just lucky they didn't realize who you were fucking. And I don't own one, I don't need it when public transit can suffice." Hato bluntly replied as she suddenly came to a stop, courtesy of the vibration from her bosom. "...Seems like we're here."

Bridgette quickly turned around and snapped over to her friend's side, looking quizzically at the pretty looking yet incredibly quaint house. Completely identical to every other house in the rich neighborhood. "What's with gated societies like this and picking such dull homes?" She muttered as she walked right towards the door, clearing her throat as she adjusted her outfit as much as possible. If one of the parents were home, she wanted to look at least a little presentable. Losing out on rent for the week because she messed up would be... Well, terrible would be an understatement in that one instance.

Hato didn't follow up on her friend's annoyed statement, merely reaching into her cleavage to dig out her phone and quietly flick through the neighborhood as presented on the internet. "...Oh, Bridgette, of course..." She muttered, quietly enough so that her friend didn't notice, while her dull expression slowly shifted and filled with excitement.

The bell rung, and the door to the quaint home opened to reveal... Not an adult, but a young boy that was barely half their size. An adorable little thing with short blonde hair, a set of childish overalls, and a big bright smile that really brought out the innocent blue shade of his eyes. "You're the babysitters! Yay! Mom and Dad went out hours ago, I thought you'd never get here!"

"M-Mmhm, that's us! Bridgette and Hato, the best Babysitters that money can buy!" Bridgette nervously laughed, only to get a soft elbow in the side from her white-haired companion. "Right, did your Mom and Dad say anything about what you weren't allowed to do, kid? They didn't really tell us anything when we took the job, so..."

"Oh, there's no rules! They just told me that you'll keep an eye on me while they're away. Come in, come in! I've been really lonely!" For a boy his age, he sounded incredibly nice. It definitely seemed like he had been raised right, though there was something ever so slightly off about the fact that there were no limits.

Bridgette grinned as she practically ran inside. "Don't mind if I do, then! If we're gonna take care of you, I'm gonna make sure I'm having a great time!" Giving no limits to a woman like Bridgette was a bad thing. Mostly because she'd find a way to ruin things quicker than you could imagine it.

The boy giggled a bit as he watched her run off inside. Almost like his older sister had, back when she was still a part of the family. She disappeared one day, and his parents refused to tell him why. Shame, he had come to really like their games.

"Kid?" Hato asked as she closed the door behind them, quietly kneeling down as she watched Bridgette getting cozy on one of the huge couches. "You know anything about this?" She showed the boy a few pictures on her phone. Pictures of the kind of antics that the gated society got up to. Antics involving young boys like him and outsiders, just like the two of them.

He nodded. "That's what happens with my friends and their sisters! But they always have a lot of different sisters, both big and small. Why, is there a problem, Miss Babysitter?" Despite the graphic content displayed on the phone, he just kept smiling like it was a completely ordinary occurance. Even though his overalls were starting to tent rather impressively.

This was what Hato needed to hear, as a light started to shine in her eyes. Oh, Bridgette, you hopeless idiot. You just had to bring them to a gated society that loved to spoil their children in the worst kind of ways. "The truth is... She's not your Babysitter. She's supposed to be your new sister. You should try and play one of those games with her." The white-haired writer said as she patted the boy on the head. "And don't stop if she tries to make you stop. She's into it, she just doesn't want to admit it."

The boy's eyes lit up as he heard that, immediately running straight towards the couch where his brand new sister sat, giggling and grinning from ear to ear. "Sister! Sister!" He cried out as he climbed right onto her thighs without even giving her a moment to process what he was saying.

Bridgette was given a quick introduction to exactly what all of this meant when the young blonde boy smashed his crotch right up against her tits, letting her feel the outline of his cock trapped within that surprisingly flimsy pair of overalls. "E-Eh? N-No, I think you've got something wrong, kid..." She started trailing off the more he idly thrust against her tits, all while her cheeks flushed brighter red. Well, this wasn't how she had expected today to go, but she wasn't one to say no to a good bit of fun with a young boy. Even though she had just finished her time as a 'rental' for a couple of weeks just a few days ago...

Hato just smiled and took up a seat on the opposite couch, stretching and kicking one leg over the other, all while her gaze remained completely locked on the two. She needed to make sure that she mentally noted down everything that happened. Both for her own pleasure, and the stories she'd be able to write in the future.

The boy let out a moan as his cock managed to snap his overalls off, revealing the sizable shaft for his age. It was almost as long as his arm, and it was now resting on his 'sister's breasts. Breasts that he violently grabbed ahold of, not caring about his 'sister's permission as he did so, before slamming it straight into the gap between those two mounds like it was a completely normal thing to do.

Bridgette was used to dominant boys, she had frequently gotten involved with them during downtime between writing. But this kid? He was on a completely different level. As she felt his cock thrusting in between her tits and using it as a proverbial pussy, she could feel her entire body trembling because of the sheer effort he put into his thrusts. He had the size and the proper form, causing her to moan as she was being used.

Hato idly started to squeeze into her own mounds as she watched all of that, unbuttoning a couple of the buttons on her suit to allow her breasts to breathe so she could much more easily play with herself. She licked her lips and trembled as her own arousal kept building, just the sight of the two going at it being enough to light a nice little flame inside her. God, she loved being a voyeur...

The boy let out a premature cry as he thrust deep into that sweater-covered tit-pussy, all while his balls audibly churned and a big glob of that sticky white gunk shot straight from the tip. It soaked in almost immediately, leaving one big sticky stain on that thick green garment. If he was any ordinary boy, this was where he'd probably lose his energy.

But instead of that, he just jumped down from her thighs and forced Bridgettte to spread them while she was still winded from having her tits fucked. "Wow, sister! You're drenched! Don't worry, I'll help!" He giggled, he knew just how to help one of his sisters when they were this turned on. Mom always told him that he had been really good at it too, so he wanted to show his new sister that he could do a great job.

Bridgette didn't get the chance to stop the boy from pulling down her pants and underwear to get to the good stuff underneath. In fact, why should she? It had felt way too good to have her tits fucked like that, so much so that she wanted to keep going. So she just squeezed her thighs a little, clamping them around the boys head as he started licking.

The boy did the best job that he could. Letting his tongue drag along those thick lower lips and sticking it in between to make sure that he stimulated her vaginal canal a bit as well. Not only that, but after he had licked the lubricating juices off her pussy for a moment, he gave her clit a bit of attention as well by lightly pinching it between his teeth, prompting a loud cry from his dear sister.

All that she had needed to climax was just a little bit of stimulus. But the boy had given her plenty, with the light nibble on her clit being the last thing she needed. Bridgette was forced to scream out as the pleasure fully flowed through her, causing her body to tremble and grow completely limp as she collapsed against the couch, all while letting so much of her juice squirt out from her hole and onto the poor boy's face...

And a little more beyond that, as a golden stream managed to loosen from her urethra as she gave the lil' lad a golden shower. Not that he was too deterred, he couldn't help but find it kinda cute actually. His older sisters, when they were around, were also like this. Super weak after he had eaten them out, and then they finished by just having an accident. It really meant that she was going to be one of his new sisters, but he had to make sure that she could take it all.

Wiping the piss off his face and letting it join the various liquids that had been pouring down her thighs and onto the floor, the boy climbed back onto the couch and started putting all of his strength into his hands as he lifted the black-haired sister up. Juuuust enough that he could get behind her..!

Hato felt her body trembling as she saw the boy penetrating straight into Bridgette's vulnerable ass, as she mimicked the same action with her own fingers jamming into her tender asshole. Even though she was much tighter than her promiscuous friend, god it felt so good. Now she really wanted a cock to play with too, but she shouldn't stop what was happening in front of her... Not until Bridgette was done.

Of course, being one who was actually busy getting fucked by a kid half her size, Bridgette let out moan after moan as his surprisingly thick cock was practically swallowed by her gluttonous donut of a hole. He was one of the biggest that she had been with, in both senses of the word, and he had the experience to back it up!

Instead of her having to do most of the work, she was the one being bounced up and down by the boy. It wasn't a gentle kind of bouncing either, it was mostly caused by the sheer amount of strength he put into every shove with his hips. It felt like he was ramming into every vulnerable point inside her, causing her moans to grow louder and louder as she lost complete control of herself thanks to how strong he was...

Especially as she felt her body growing completely limp again. Because as he thrust into her, one of the vulnerable points that he slammed against was the direct connection between her anal canal and her bladder. So much so that even though she had already been forced to piss before, now she was actively squirting it all over, to the point where she was nearly firing it at her white-haired friend due to how far it was flying. She didn't really have the capacity to notice that she was making a complete mess of the place either, because of how fucking good it felt to have the kid's cock tearing up her insides.

Of course the boy didn't stop fucking her despite the fact that her growing limp meant that she was getting heavier. Instead, he just kept thrusting like before. Letting his cock go as deep as it possibly could, panting and gasping as he was getting closer and closer to his own climax. It felt so good to be fucking another sister! He hadn't gotten the chance in months, and this one was the best one yet! She was nice and plump all over, and even though that made it harder to fuck her, that just made the fucking itself feel so much more satisfying!

The passionate pseudo-incest displayed in front of her was getting Hato more and more riled up, one hand stuffed down the front of her pants while the other was shoved down her back. She really needed a cock once all of this was said and done, because the show in front of her had been way too entertaining. Just one that she could maintain better control over, just so she didn't end up breaking like Bridgette had. Even if the thought was making her even more drenched..!

Bridgette kept crying out more and more as she was getting closer and closer to a climax. But as much as she was enjoying this rough fuck, there was always the danger of something vital getting hit thanks to how far inside her he had buried his cock. He had already made her empty her bladder, so it was only a matter of time before... before...

Her eyes widened as she felt a powerful blow to her stomach. The boy had managed to shove his cock so far inside that her innards had contracted and his tip had smashed against her stomach. The contents within were shaken around so violently that something had to happen, and since her shitter was currently being blocked by the thick rod that was giving her this wonderful pleasure, it had to go out the other way..!

The boy was jerked forward as his new sister was forced to vomit out the contents of her stomach, dirty light-brown water and half digested pieces of food joining the piss and cum on the floor. The sheer pressure of what he had done forced her to release all of that... Which juts made the boy's cock grow even harder, his grin widening as he realized just what he had done.

All his sisters vomited much earlier! Especially if he forced them to suck him off and swallow his cum. The fact that it had taken this long before she vomited meant that she was the one for him! With that in mind, the boy giggled and lifted her up one more time, readjusting himself to make sure that he delivered another dangerous hit once he let her fall... And then he thrust up at the same time as he let go of her, letting the two pieces of momentum clash against one another as he reached as far inside her as he possibly could.

Bridgette's eyes rolled into the back of her head as she was forced to climax and vomit at the same time, her expression in a state between pain and bliss as the contents of her stomach were quickly being emptied, this time consisting of a bit of cum as the boy had been quietly cumming once she landed back down on him. All while her juices just continued pouring out of her. Could her mind recover from all this? Probably, considering her hobbies.

The boy snuggled away at his plump sister, giggling as his cheeks flushed bright red. Because right after he had finished cumming, he really needed to relieve himself before starting back up. So he just used her hole as a toilet, as any good brother would, filling her tummy with his golden stream just like he had filled her with cum.

As he slowly started to recover while pissing into her, Hato had collapsed against the couch from her own more modest orgasm, quietly drawing boht her hands to her face as she licked them both clean of any traces of filth, all while giggling a little to herself as she looked over towards the 'siblings' that had been so intimate...

Bridgette was in for the long haul now, since she had signed up for weeks worth of babysitting... In a community known for dubious relationships between mothers, sons, and any female babysitter that they might be able to rope in...

At least by the time it was all done, this would make for great story material.