Pastimes with Your Sister
by PyroGR


PART 1

Jacob was approaching his house at 4 o'clock as usual. It takes him about 15 minutes to get home from school. He was 13 and in his last year of middle school. Standing at a laughable 5'3" and 105 pounds he was a subject of teasing at school. Do to his small size people picked on him since there was physically nothing he can do about it. And one of these people was waiting for him at his doorstep.

-Oh hey. Right on time as usual

Jacobs sister Amy greeted him by the door. Standing at a crazy 6'9" and 350 pounds she was the complete opposite of her younger and weaker brother. Mind you she wasn't really fat. She played basketball so she had a lot of muscle and the fat that she had was distributed very well. With huge yet firm 36G breasts and an ass so big that Jacob could spread his arms out and it would still be wider, she was quite a view.

-Why are you out here?

-Just taking in the good weather. What's the problem with you?

Jacob just walked by her.

"She dares ask me what's wrong with me." Jacob thought to himself. As a pastime Amy liked to CRUSH Jacob. Crush. You can't make that stuff up. She would lay on him or sit on him. Sometimes she would even go as far as fart on him. Lately she's been doing that more often. She'd like him to taste her farts and describe them to her. She threatened Jacob that if he doesn't listen to her she'll bring him up a notch and make him her toilet paper or even toilet.

Jacob walked into the living room, threw his bag in a corner and slumped down onto the couch. Amy walked in shortly after him.

-Ahem- Amy stood over Jacob, looking at him impatiently.

Jacob moved over to the left, guessing that she just wants to sit down in her preferable spot or something like that.

-No no no. I want to sit on my favorite seat.- Said Amy, pointing at Jacob's face.

-You can't be serious.

-Why? Is there a problem?

-Come on. I just got back from school. It's Friday. Give me a break.

-I asked. Is there a problem?

Jacob sighed. He knew there was no point of arguing. He laid down on the couch facing up. Amy smiled and started taking of her shorts and to Jacobs horror, her panties. She stood over Jacob's face and was slowly squatting down. Her ass cheeks were spreading so Jacob could get a clear look of her shit stained crack. The smell hit him hard as well. He had to think quick.

-Don't you think this is kinda wrong? He quickly asked

-What?

-Well we're siblings so this could kinda classify as incest.

-Uh huh

-I don't know about you but I think it's kinda weird.

-Here's the thing. You see this as a sexual act which freaks me out a bit, but I just see this as an older sister showing her baby brother who's the boss.

With an evil grin she plopped down right onto Jacob's face. Her ass being so big that she covered most of his upper body.

-I've had some Taco Bell just before this. So buckle up.

PPPPPppppppfffffffffffftttttttttttttsssssssss
Ppppppppppppppppppppppppttttttsssssssssssssssssss
SSSSSSSSSSSSsppppppppppppppppppppppppplllllllllllllllllllllllllllllllllllllooooooooooottttttt
Pppppppppppppfffffffrrrrrtttt

This is gonna be a long weekend.

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Next morning Jacob got up and went straight to the bathroom. He walked in and saw his sister in the bathtub. He immediately turned around and was about to leave.

-Where you going? We're brother and sister. We've seen each other naked when we were younger. We're family.

Jacob didn't bother arguing with her so he got to the sink. He was gonna brush his teeth but couldn't seem to find his toothbrush.

-Looking for this?

Jacob turned around and saw Amy laying on her stomach. Her huge, wet ass was now fully visible. She was moving her hand up and down her ass crack. When Jacob looked closer he noticed she was holding his toothbrush.

-I needed something to clean me very carefully. This little thing can go literally anywhere- said Amy playfully cleaning the rim of her asshole.

-How... long have you.... been using it?

-This thing ?! Probably since you got it.

Jacob gagged on the thought that what he put in his mouth daily was also a cleaning utensil for Amy.

Amy was taken aback by Jacob's reaction.

-Jacob! I'm just you're sister. How can you gag on the thought of me. You know what? I want you to brush your teeth right now. In front of me.

Jacob thought he was gonna cry. But he knew what had to be done. He took the toothbrush from his sister. There were clear bits of feces on the brushes. Shakily he brought his hand to his mouth and started brushing.

-Good boy- said Amy, grinning and giving out a little bubbly fart.

-------------------------------------------------------------

Amy walked into the kitchen the next morning. Jacob was already there and had a breakfast ready on the table. He didn't even have a chance to start it cause the phone rang and he left the room to answer it. Amy saw her chance.

First she took the sausage he prepared and used it as an anal toy. Some poop was still on it when she was finished but she definitely didn't mind that.

Then she got to the coffee. She put it on the floor and squatted over it and started blasting long, wet farts. She even mixed in a little bit of diarrhea for taste.

She took the piece of bread and started smearing the buttered side on the sole of her foot.

After cleaning her foot she fixed herself a cup of coffee.

Just then Jacob walks in.

-Gotta hurry. My friends will be hear in 10 minutes and we're going to the beach.

-Cool

Amy was walking out and turned her head around to see Jacob take the first bite of the sausage.

-Don't choke on your food!

--------------------------------------------------

Jacob was walking around aimlessly all morning. The weather is bad and there's nothing to do. Amy had a great idea.

-You look bored. If you want I know what we can do.

-Sure go on.

- Well. There's this movie called Human Centipede. This scientist connects these three people together and they form one long gastric system.

-I don't know what that means but yeah let's try it.

-We both have to be naked.

Jacob sighed and just did what she asked. Amy got some duct tape.

-Go on all fours.

-Okay?

Jacob did as told. Then Amy went on all fours in front of him and started taping his head to her ass so that his mouth was placed tightly over her asshole.

-The experiment is to see if you'll be able to live by what I eat. I'm gonna eat normal food and you're gonna live of of my feces.

Jacob started pushing his head away from Amy's ass in protest. The tape was sealed to tightly.

-You agreed to this. Mom is away on holidays so you won't go to school this week. We'll see can you live only from eating my poop. Sounds exciting doesn't it. Oh here come your first meal of the week. It's not solid, don't worry. It's more of a diarrhea soup.

Jacob's whole body shuddered as his mouth was filled with what he assumed was soup of the day.

 

PART 2

It was 2:30 am. It was difficult to sneak for Amy. Standing at a whopping 6'9" and 350 pounds of muscle and well-distributed fat, even the strongest floors creaked underneath her. Her big, sweaty feet, comparable to a rhino's hoof, made loud flopping sounds as her unwashed soles stuck to floorboards. Her parents were away for a few day, so she didn't waste time putting on clothes.

As she paraded naked down the hall, a very audible gurgle was heard from the bottom of her stomach. PPPPPSSSSSsssssssssssttttttt. She squeezed her basketball-sized cheeks together to silent the rancid stench. The two bowls of chilli were showing themselves. She tried her best not to let any farts sneak through, as they were all meant for her favourite person in the world.

---------------------------------------------------------

Jacob rarely fell asleep. He was officially diagnosed with PTSD. Only he never dared to admit the reason was his sister's unholy ass and it's flatulence that put him in that state. Recently he has been ableto sleep more nights. Unfortunetaly to him, that leaves him more vulnerable.

Amy slowly pushed Jacob's bedroom door open. Her brother's bedroom was carpeted so her steps were silenced. pppppppssssssssssssssssssssss. A silent fart, yet it made cheeks wiggle. She stopped dead in her tracks. Jacob didn't notice her presence. Finally Amy stood beside his bed. The little guy still sucked on his thumb. Amy came here to just fart on him, but now she had an even better idea. She turned around and bent over to place her shit-stained, slimy asshole an inch away from her brother's mouth. She gently grabbed hold of the hand Jacob was sucking the thumb of. Replicating that scene from Indiana Jones, in one swift movement she took away the boys hand. After doing so, she prolapsed her toxic anus right into Jacob's mouth. All this happened under a second. Time seemed to slow down. Amy was dreading that Jacob might wake up. After 3 seconds of nothing, Amy left a sucking sensation on her anus. Jacob's caught the bait. His sucking sent a tingling sensation up the girl's back, the feeling being almost orgasmic. Ppppppfffffffssssssssst. Amy started inflating her little brother. You could physically see Jacob's chest inflate. Ppppppppffffffffttttt. FFFFFFffrrrrrrrrrrrrrottttttttttt. BBBBBbbbbbbllllllllllrrrrrrsssssssssss. After unleashing her dinner into Jacob's mouth for 20 seconds, she felt dessert coming out. Tonights special: chocolate fudge.

-----------------------------------------------------------

Next morning,
Amy is playing with her phone in the dining room. Jacob walks in, clearly looking confused. "Good morning" Amy chirped, an innocent smile beaming off her face. "Yeah .. hey, hey.... yeah good morning" Jacob answers, his mind clearly somewhere else. Amy notices him picking at his mouth with his finger, confused aboutthe taste inside of it. Amy giggle to herself.

Later Amy walks into the living room and sees Jacob laying on the couch. She was in avery menacing mood. Before Jacob could react, his giantess sister placed her enormous, naked ass onto his head. Underneath all her ass meat, her brown anus was pressing against the boys face. Amy glances over her shoulder and notices her weakling borther's head between her ass cheeks. How embarrassing. It's starting to get warm under Amy's ass. Jacob is sweating and drops of anus sweat and shit drop intothe boys mouth. Amy can't get over how comfortable her favourite pillow in the world is. The giantess slightly lifts her booty, inches away from the boys face. She grabs her ass cheeks, her fingers digging into the fat, and spreads them wide as does her asshole. She lets out a lethal puff of air from her gaping anus right into poor Jacob's mouth. Amy looks back at her butt with a sinister grin across her face. Amy leans back even further, pressing the boys face further and further into her god foresaken anus. The girl grinds her ass all over Jacob's face. Amy stands up, Jacob falls from her asshole with a loud PLOP. Jacob lays there panting, thinking its all over. Amy has other plans. She power bombs her mighty ass back onto her brother's face. Jacob manages to find, almost inhumane, strentgh to slightly lift Amy's ass off his face. His hands tremble, as they struggle under the mighty weight of her ass. Sweat drops fall onto his face. Jacob is face to face with his sister's slimy, bulging anus. Her asshole could easily swallow his whole face. Jacob starts gagging while facing Amy's revolting brown anus. Amy notices his reaction, angering her that he finds her disgusting. Jacob notices his sisters anger and prays to God. But God can't help here. Amy grinds her shit stained anus up and down Jacob's face, completely engulfing his face. Amy then sits her full weight onto the boys face, wiggle her butt on his face, like a dog on a carpet. AMy gets up and her baby brother is fully wedged in her ass. She lubes up her hand and starts pushing at the back of Jacob's head. The boy manages to put up a little fight, but not for long. His head slowly penetrating his Amy's anus, makes her bite her lower lip. Finally his whole head is inserted into the girl's asshole. Amy gets up, happy with her work. Her brother's body dangling from her ass. He won't be moving from there on his own, he does't have the strentgh to do so. Amy feels tired after playing with her brother. They go to her bedroom, where she'll nap for a few hours. She needs to rest for their camping trip in a few days.

 

PART 3

Jacob stared at the countryside scenery zooming by. The occasional herds of live stock interrupt the seemingly endless green pastures. There is truly no connection between this place and the suburbs. School ended two days ago and he's already been essentially disposed of by his parents. They wanted the house to themselves so a camping trip to the country side for the young boy would be a perfect excuse. Jacob was never a huge fan of the outdoors, but he wasn't necessarily against it either. A small part of him was excited when his parents suggested the idea. A nice breather from everyday life may have been what he needed. So that brings him here, the back of a bus, on its way to one of the last stops on its route. Jacobs parents have truly chosen the back arse of nowhere. This week long trip had potential to be fun. HAD. The reason this trip has gone from promising to awful is the mass of flesh sitting next to Jacob.

Pffffffffffffffffffft

"Arghhh I need to go sooooo bad", Amy wiggled in her seat releasing some pent up poo farts.

The gassy girl is Jacobs older and much bigger sister. Standing at 6'9" and weighing an astounding 350 lbs she towers over pretty much everyone she meets. Her weight also comes from her participation in sports, as proven by sporting a very toned body, as all the fat seemed to be distributed to the all the attention grabbing features. Her butt was huge, like two beach balls, yet it still kept a very aesthetic shape. Her boobs were less shapely, as they did clearly sag a good bit, but their size alone makes them incredibly impressive. These physical attributes have helped her torment her baby brother in the past. You see Amy is a huge slob and has no lady like manners. Jacob is awfully familiar with his sisters ways, which is why he held back tears when he was informed that Amy will keep him company for the week long trip.

BBBBBBBBBbrrrrrrrrrrrrrrrrrrrrttttttttt

"Why did you let me eat your snacks on top of mine you idot", Amy grimaced in discomfort.

"You took them without asking", Jacob answered timidly, pressed against the window of the bus by Amy's huge rear spilling onto his seat.

The girl replied with a solid thump on the boys shoulder. He winced quietly to himself and took a mental note not to speak for the time being.

"I don't care. You should have stopped me". Amy was head strong and hated admitting her brother is ever right. Especially since he's so small and weak. It gives her validation and almost a bit of pleasure to lash out and humiliate him. Which actually gave her an idea. They were sitting at the very back of the bus, so she had a glance around the vacant seats. The last passenger must have gotten off a while ago and she hadn't noticed. Amy then directed her focus to the driver. The older man was focused on the road. The girl could see in the rear view mirror that it was impossible to see anything below her lower chest area. This gave her an idea.

"I feel like since my gas is all your fault, you should fix it."

Jacob zoned out after Amy hit him so he didn't hear what the huge girl said.

"Huh?" asked the boy.

Amy rolled her eyes and kissed her teeth. She didn't like repeating herself. Instead she grabbed the back of her brothers head while simultaneously lifting her left ass cheek. This allowed her to shoved the boys head under her booty short clad bum. She first made sure to make Jacob face upwards before mushing his face below the mountain of flesh.

Jacob was instantly hit with hours worth of mustiness and farts. This would be bad on its own, but added to this was his sisters already poor hygiene. The boy was in a rotten-smelling, humid prison. He could still make out Amy's muffled voice.

"Place your nose under my asshole and inhale as hard as you can so that I don't have to deal with any of the smell. Or else."

Jacob knew that the or else simply meant an even worse punishment, so he figured he may as well listen to her demands. For a moment he was worried about being able to find her asshole, but after a short look around, he saw a darkened area of his sisters shorts. He figured it was the effect of her ass juices seeping into the material. He readjusted himself to place his nose in the middle of the dark circle. As he expected, upon contact he could hear a gut wrenching squelchy sound. He regained focus and pushed his nose against the fabric. It went deeper and deeper, meaning he managed to find her ass crack. The tip of his nose finally came in contact with something solid. Amy's cooing from above made it clear to the boy that he has found the target.

"Bullseye cowboy", Amy giggled to herself.

Jacob readjusted again to place his nostrils flat against the fabric where her asshole is. He didn't wait long for his job to start.

"Treating you to silent one there. Consider it an appetizer", Amy laughed. Jacob was hit with a torrent of rancid hot air. He instantly inhaled deeply, feeling the fart attack his nose. He felt nauseous from both the rotten smell and the force of the gas.

Pffffffffft

Brrrrrrrrrpop

Amy kept releasing fart after fart onto Jacobs face, feeling satisfaction from not having to smell her horrible gas and from humiliating her bitch brother. The force of the farts has been splattering the mix of sweat and ass juice in the girls shorts all over Jacobs face.

Ppppppppppprrrrrrrrrrt

Bbbbbbbbbrrrappppppppp

Ffffffffffffffflllllllllllllrrrrrrrrrrrrtttttttt

"Oh no that last one had some wetness to it don't you think baby bro", asked Amy, putting on a fake caring tone. She wasn't wrong though. Jacob could tell the moistness was no longer only coming from the wet patch on his sisters shorts.

"Also I feel like you're not really keeping up with my farts anymore. I've been getting wafts of it up here." This was a lie. Amy hasn't smelled a thing in the half hour her brother has been assigned as her fart vacuum. This didn't stop her from wanting to bring up the ante.

"Right kiddo! Open that sweet little mouth of yours. You're gonna suck these out before I even let them rip. I know how much you love that."

Jacobs whole body tensed at his sisters words. She has tortured him in the most disgusting ways countless amounts of time, but he can never get used to it. It's always as terrible as the first time. The sad thing is, he feels like Amy knows that.

The girl bounced up in her seat, while swiftly sliding her shorts off her enormous rear. Jacob only had a chance to look up at his sisters pale, cellulite covered ass. Her fingers dug into the squishy flesh off her cheeks, as she separated them, exposing her dark, grim crack. Jacob stared at her brown, slimy asshole descend closer and closer. He shut his eyes in defeat and open his mouth.

Amy sat back down with force, making sure to add some insult to injury. She felt her brothers breathe against her asshole, but she had to make sure he was in place.

TTTtttssssssssssssssssprrprprprppppp

A long and sloppy fart erupted from her anus. She could hear the noise of it echoing inside Jacobs mouth. Amy smiled and nodded to herself, satisfied with her position.

"How long until we get to Round Wood Camp Site?" Amy spoke loudly from the back of the bus, trying to get the drivers attention.

"About 45 minutes. Why? You in a hurry?" the driver asked the girl.

"No not at all. I was actually gonna ask if there's a scen-" Amy paused mid sentence to forced out a fart.

"Sorry. I meant to tell you to feel free to take a scenic route if there is one. I love the views." Amy suggested.

"Erhmmm... I suppose there is a nice route near the lakes. But fair warning it is a fair bit of a detour. I'd say it'll take about an hour and a half. 2 tops."

"That sounds perfect. Lets do it", Amy smiled slyly. Jacob was able to hear the whole conversation, so an audible sigh could be heard from underneath the colossal girls ass.

Pppppppprrrrrrrrrrtttt

Frrrrrrrrrrrrrrrtttttt

BBBbrrrrrrrrrraaaaaaaaapppppppppp

---------------------------------------------------

The doors shut behind the two siblings, as the bus starting pulling out of the parking lot. Amy stood with her hand on her hips, taking in the sight of their place pf residence for the next week. Round Wood Camp Site seemed to not be the most popular destination, as all the amenities looked extremely old.

Jacob was dragging the three huge bags containing all their belongings, while Amy strutted towards the main entrance, where she then waited for the boy to catch up.

"Omg you take so long to do anything. Anyways there's an outhouse there. I'm gonna go for a shit. I'd ask you to go prepare our camp site, but knowing you you'll mess it up. Just stay here and mind the bags."

Jacob watched as Amy walked off towards the ancient looking out house. She got inside and shut the door behind her. Jacob sat on one of the bags and took in his surroundings. The whole camp site was very lack luster. There were no people it seems, only a few old picnic benches and a small pier at the lake. Jacobs thoughts were disturbed by the wet splattering sounds coming from the outhouse. He cringed as he imagined what the scene must be like in the small structure. He sat on the bag for another 20 minutes, his legs dangling. The sounds from the outhouse weren't losing their intensity.

Finally, the outhouse door swung open. He couldn't see inside from his position, but he could hear very clearly.

"Oh Jacoooooob. Come to your big sis pwease", Amy called out in a sing song tone.

The boys stomach turned, as terror overcame his body. He was terrified to go to his sister, but his body made him get off the bag and walk to the outhouse. It must be his sub conscious forcing him to do as told, in fear of what would happen otherwise. As Jacob got closer to the outhouse, his eyes starting watering. It smelt like manure. It instantly gave him a headache and stung his eyes.

He got to the open door and looked inside. His sister was standing up, her back facing the outdoors. Her shorts were around her ankles, her bare ass at eye level with the boy.

"Would you believe I forgot to check if there's toilet paper in here first", Amy looked over her shoulder, pulling an innocent 'oopsie' face. Jacobs eyes directed to her butt. Even while standing up and her ass cheeks together, he could see some brow splatter on the inner parts of her cheeks. A shiver went up his spine on the thought of what her crack and anus look like behind the two masses of flesh.

Jacob knew where this was going, so he started taking off his t-shirt. Back home Amy used to always use his clothes to clean herself, whether its her sweaty pits or musty ass. He got his top off and reached out to hand it to her.

"Excuse me?!" Amy stared at him blankly.

"What?" Jacobs retreated his hand and looked at his sister puzzled.

"After that many hours of travel, my bum is quite sore. She deserves some better treatment don't you think?"

Jacob just stared at her blankly. Amy rolled her eyes and reach back towards him. She pushed her fingers against the boys lips. He slowly opened his mouth his mouth, confused as to what she was doing. Amy's two fingers pinched Jacobs tongue out of his mouth until it was fully jutting out. She gave it a slight tap when it was out as far as it could be.

"Perfect." Amy smiled as she brought her hand away. She then faced away from Jacob and bent forwards over the toilet seat. The girl then reached back and began pulling her cheeks apart. Jacob could hear the noises of her cheeks being separated, due to his sisters shit sticking them together. He was finally presented Amy's shit covered crack and asshole. The waste was spread around her cheeks from mushing them together while standing up.

"I believe I don't need to explain further. Hurry up we don't have much sun light left"

Jacob stood in shock. His eyes locked onto the greenish-brownish gunk emitting what must be the foulest smell known to man. He stood frozen, his tongue still out. He was sweating profusely. A single tear rolled down his cheek as he started leaning towards his doom. Jacob placed his hands on either cheek for support, as his tongue inched closer and closer.

"Urgh I haven't got all day", Amy huffed, as her hand reached back and grabbed Jacobs hair. The boys was only able to give out a small whimper before being pulled into his sisters shit-covered ass. The impact made a loud squelching noise, as his face sunk into the waste. For a few seconds, there was no sign of life from the boy. Amy raised an eyebrow in confusion. She glanced back and could only make out the top of her brothers head sticking out from in between her fat cheeks. A few more seconds pass. Then suddenly:

Slurp

Ssllrpppp

*lap* *lap* *lap*

Amy's head shot back, as she squealed with satisfaction. She bit her lip as she felt Jacobs tongue swirling around her asshole rim. It then wandered up and down her crack until it stopped at her asshole again. She felt the softness of it squeezed into her anus and twist around inside, making her eyes roll back in pleasure. The cleaning took about 15 minutes. Jacob sucked on Amy's asshole to get rid of any remaining shit hiding in any crevices. He knows if he doesn't do a good job cleaning, his life will become an even worse hell, based on his experience with his sister.

With a popping sound, Jacob took his tongue out of his sisters ass and stood back, awaiting her verdict. He could feel his tongue, but he could tell there was remains of the huge girls shit that he can't wait to wash out.

Amy needed a moment to gather herself. She reached back and ran her finger up along her crack. Upon inspecting her finger, no filth was found. Amy pulled up her shorts a turned towards Jacob. The boy looked back at her. He had brown stains on his nose and chin. Even some made its way to his forehead. Amy leaned forward to be at eye level with her brother. She brought up her hand towards the boys face. He flinched at her movement, but Amy continued raising her hand towards him. She pinched his cheek and give a playful, but sore wiggle.

"We're gonna have an eventful week", she smiled widely.

 

 

To be continued....