A Messy Slumber Party

by Rimmer

Rating: mature
Tags: Human, Fetish, Equestria Girls, Porn, Sex, Sunset Shimmer, Main 7 (EqG)
Length: 8542

When the toilet gets clogged at one of their frequent sleepovers, Sunset Shimmer comes up with an unorthodox solution for the girls to relieve themselves.

When the toilet gets clogged at one of their frequent sleepovers, Sunset Shimmer comes up with an unorthodox solution for the girls to relieve themselves.

TRIGGERS: Scat, Watersports, Minor Exhibitionism/Voyeurism, Relieving Oneself in Front of Others, Vomit, Masturbation, Shit-Smearing, and Sexy Playtime with an Abnormally Large Volume of Poop

This story is a commission for: Anonymous
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Published 2024-06-09 15:30:00 UTC
Last updated 2024-06-09 15:30:00 UTC

A Messy Slumber Party

All characters are 18+ in this story.

Another summer weekend, another sleepover.

With college looming, the girls made every effort they could to hang out. It was only a few short months until they all went their separate ways after all. Sure, a few of them would stay in the area - Applejack was going to stay working on her farm for a year while Pinkie Pie, Rainbow Dash, and Fluttershy went to the local Canterlot College. But Rarity, Twilight, and Sunset were heading off to three different colleges a bit further away. They would, of course, still have plenty of get-togethers. Just less frequent.

Today had been a fun day: they had a cookout at the local park and played some games, and then returned to Sunset’s apartment for a slumber party with more junk food, board games, and some rounds of the brand new release of Mare Kart 9.

Suddenly, amidst the chirping game music and the idle chatter of the friends, a raucous fart ripped out. There was silence for a moment before Rainbow burst out laughing and the other girls looked around to see who had let one slip. It didn’t take particularly long to figure it out, as Pinkie Pie shifted again to lift her butt up off of the floor and let loose another burst of boisterous anal air.

“Oopsie, looks like I have to use the potty,” the party girl exclaimed as she jumped up to her feet.

“Damn, Pinkie, let it rip!” exclaimed Rainbow Dash with a grin.

Pinkie giggled in reply. “Gotta empty the dump truck!” she said as she shook her plump butt with a laugh.

Rainbow wiggled her eyebrows as she watched her friend walk away. “Got some chocolate cake in the oven, huh? Pinch a thick loaf?” she asked.

“Ugh, must you be so crude, Rainbow Dash?” asked Rarity with disgust as Pinkie chuckled at the euphemisms.

“Yes. Yes I must.” Rarity rolled her eyes at the athlete’s answer. “And hey, I got a whole, long list of crude-isms to describe the fat, stinking deuce that Pinkie’s about to drop in the shitter. I can go on, if you’d like.”

“Please don’t.”

Pinkie Pie giggled as she skipped down the hall towards Sunset’s bathroom and Rainbow continued her deluge of potty-themed vulgarity. Eventually though, after a particularly crude suggestion of how she wanted to “sample some of Principal Luna’s fudge,” she quieted down and got back to the video game.

A few more rounds of Mare Kart later, the door to the bathroom opened back up and Pinkie came back to the living room.

“Uh, girls?” came a hesitant voice. “I think I’ve got some bad news.”

Sunset raised an eyebrow as the rest of the girls turned towards an unusually shy-looking Pinkie Pie standing in the hallway. “Why? What’s up?”

“I think I clogged the toilet.”

“Oh,” said Sunset with a reassuring smile. “That’s no biggie. I’ve got a plunger in the closet.”

Pinkie bit her lip. “I uh… I’m not sure that will help this time.”

Sure enough, as Sunset stood in front of the toilet with her suddenly inadequately-sized plunger in hand, she realized that her friend was right. The pile of crap had filled up the white porcelain bowl almost halfway, with huge logs of steaming shit laid over one another in a small, soft, stinky mountain. Her plunger was not going to do anything about that.

“Wow! Holy shit, Pinks!” exclaimed Rainbow as she peered over Sunset’s shoulder. “That is a fucking monster of a dump!”

The culprit giggled a little bit as she blushed. “Yeah, I really needed to go pretty bad. I’ve been holding that one in for a few days.”

Rainbow blinked. “A few days… what?” she muttered before she shook her head. “Wait no, nevermind. I don’t want to know.” Sunset was mildly curious, but did not want to embarrass her friend any further.

Gingerly, she set the plunger down next to the toilet and thought about what to do. Obviously, she was going to need to call the building maintenance to come fix this - there was no way she was going to be able to do it herself. But it was already late into the evening and they wouldn’t show up until the morning, and there were still six other girls including herself that would realistically need to relieve themselves throughout the night. They could just continue to add to the turd mound in her toilet, but Sunset didn’t want to put the burden of seven girls’ steaming shit onto the poor plumber who came to help.

The only other reasonable option would be to find a different receptacle to collect their waste. Thinking quickly, Sunset remembered that she had a fairly large plastic bowl that she typically used for baking. It was big enough to hold a double batch of brownies, and she figured that would be able to handle most, if not all, of their poop. (Given that no one was dropping loads like Pinkie, of course.)

“Well, if anyone else needs to use the bathroom, I guess we can use a bowl or something. I have a pretty big one.”

“A bowl?!” cried Rarity indignantly. “You want me to… to defecate in a bowl?!”

Applejack rolled her eyes at the theatrics. “Ya’ could always just hold it in, Rares,” she suggested.

“I might just!” came the reply.

“Girls, it’s okay,” Sunset said. “Let’s just get back to playing. I will call the plumber in the morning.”

After some minor muttering, the girls all settled back into what they were doing previously. Nearly an hour passed, and the bathroom situation had all but left all of their minds as they continued racing and eating snacks. But, as it does, nature called not too long after.

After another victory, Rainbow set down her controller and stood up for a stretch. "Hey, Sunset. Where's that bowl at?" she called out.

"Bowl?" Sunset questioned.

"Yeah, I gotta shit."

Rarity let out an indignant huff at the crudeness and Sunset's eyes widened in realization. "Oh, uh, right. The bowl. Let me go grab it." She stood and headed into her small kitchen, rummaging through her cabinets for a few moments before finding what she was looking for.

She reached up to grab the bowl she was thinking of and brought it down. Sure enough, it was just as large as she remembered it being - plenty of room to hold a sizable amount of waste. It was also cheap enough so that if Sunset needed to replace it afterwards it was no big deal. "Here you go," she said, handing the bowl over to Rainbow as she went back to the living room.

It took a moment for her to realize that Rainbow hadn't left the kitchen. Confused, Sunset turned around, ready to ask what was wrong, but her eyes widened as she watched Dash pull down her pants and squat over the bowl she had placed in the doorway. "R-rainbow!" she exclaimed in shock.

The girl looked up, unconcerned, as the other six girls stared at her wide-eyed. “What?” she asked. “Never seen a hot girl take a shit before?”

Her facetious question was punctuated with a grunt as she began to push her poop out. While the girls couldn’t really see what was going on because of the angle they were at, there was not much left to question as Rainbow’s face scrunched up, and a fecal tail began to droop down between her spread legs.

“Must you be so disgusting, Rainbow Dash?!” exclaimed Rarity with an offended gasp. “At least go to the bathroom!”

“Well - grunt - I’m not going to just stop in the middle of pinching a loaf,” Dash argued as the first of her logs fell into the bowl, smearing the side of the clean glass as it settled. Another one quickly followed, quicker than the first, and with a much softer consistency. “I think we can all agree that lunch did not quite agree with us.”

Sunset tried not to watch, she really did. But her eyes were seemingly locked onto the turd dangling down between Rainbow's spread legs. The athlete seemed to pay no mind to the show she was putting on, her own gaze instead focused on the video game playing on the screen across the room. She didn't even notice the eyes on her.

The thing was, Sunset Shimmer had a scat fetish. A pretty big one, too - it was arguably one of her most prominent kinks. She was turned on by anything and everything to do with shit. The sight, the smell, the taste, the feel. Hell, if she was especially horny, just the act of pooping could turn her on. And so here she was now, surrounded by her friends, trying not to watch one of them take a dump right in front of her.

A quiet grunt came from Rainbow's mouth as she squeezed out another log of thick shit. From Sunset's perspective, it was solid and knobby, bending only as it came into contact with the log already in the bowl. It draped slightly over the steaming turd before breaking off from Dash's pale blue anus. A few additional, smaller pebbles of scat slipped out afterwards with a nearly inaudible, dry fart that Sunset could only hear because she was the closest.

Rainbow shook her ass slightly before standing. She paused, as if looking for something to wipe with, but after a moment just shrugged and pulled up her panties over her dirty anus. The athletic band snapped against her waist and her soft sleep pants soon followed.

Her eyes met Sunset's as she stepped away, and an odd look crossed her face as the other girl quickly returned her gaze to the game on the screen. As Rainbow walked back to her place in front of the couch, she whispered a hushed "kinky" by Sunset's ear with a coy grin on her face. Sunset blushed, but did not reply.

They all returned to their gaming, and the toilet situation was once again briefly forgotten. At least until Applejack leaned over in her seat to let out a burst of gas.

"Oof," mumbled Applejack as a not-so-quiet fart bubbled out from under her. "Ah reckon it's mah turn now."

"Heh, nice," snickered Rainbow Dash as the farmer stood up and made her way over to the bowl in the kitchen. "Drop a fat one for me, will ya?" Another expected huff of disgusted exasperation came from Rarity as the group chuckled.

With even less shame than Rainbow, Applejack tugged down her pants and bared her ass to the room. Unlike Rainbow, she was facing away from the group, and had no chance of noticing as Sunset's gaze darted between the television and her butt. She watched as her friend’s butthole flexed a few times as it primed itself for relief.

A loud, wet fart burst out of Applejack's quivering anus, followed immediately by a round of wet, soft shit. The poop wasn't quite diarrhea - it still had some form to it as it coiled out of Applejack’s ass. Sunset watched as the soft stool deformed into a lumpy mound as it piled alongside Dash's cooling, firmer logs. If she looked closer, she could even see the smears of scat around the edge of Applejack's anus as it squeezed out, even from the several feet away that she was. She didn’t want to be too obvious though, and so her eyes darted around the room to make sure she was unnoticed as her friend shit a few feet away from her.

Several more farts slipped out of the girl's asshole as she emptied her colon out into the bowl. Gradually, the foul odor of her defecation spread out from the bowl. Given her position in the living room, Sunset was the closest, and thus was able to smell it first. It was an earthy stench, and had she been feeling poetic she might equate the smell to that of fresh manure on a farm. Something that in all honestly would probably have grossed most people out, but was instead highly arousing to Sunset. But with the reactions of the other girls in the room, it looked like she was alone with that opinion.

"Holy shit, AJ! That reeks!" jeered Rainbow as she waved a hand in front of her face. "The hell did you eat?!"

"Dear lord, that is disgusting!" complained Rarity as she pinched her nose. She barely held back a gag before she reached up to pinch her nose shut. "Why on earth did either of you think it was appropriate to do your business out here?"

"Sorry, y'all," apologized Applejack as she stood back up, evidently finished with her bathroom break. Sunset's eyes widened and she had to bite back a gasp as she watched her friend pull up her plain, white panties, nestling the thin fabric into the unwiped crack of her ass. "Maybe it'd be best if I move this to the bathroom, huh?"

"Please!" groaned Rarity, still clamping her nose tightly shut.

Applejack reached down and picked up the mixing bowl. Sunset watched curiously as she eyed the fetid mixture inside for a moment before carrying it down the hall and into the bathroom.

A few minutes after Applejack settled back down to challenge Pinkie Pie to yet another Grand Prix showdown, Rarity came up to Sunset as she was scrolling through her phone. “What’s up,” she asked as she looked up at her friend.

Rarity fidgeted awkwardly for a moment and then leaned closer. “Do you possibly have anything for me to relieve myself in, Sunset?” she whispered.

Sunset raised an eyebrow. “There’s the bowl in the-”

“No no,” Rarity interrupted her. “You misunderstand, I do not need to… do that. I just need to…” she searched for the right word. None came, and she eventually settled on, “Tinkle.” That didn’t sound very ladylike either, in retrospect, and she frowned as Sunset’s eyebrow somehow managed to raise even higher.

“There is the bowl in the bathroom,” she deadpanned. “I’m sure it can hold your pee just as well as it can hold crap.”

Rarity winced. “You don’t have, like, a glass or anything?”

“Rarity, I’ve already donated one of my bowls to everyone’s bathroom needs! I’m not going to start lending out my entire kitchen!”

“No, no, of course not!” Rarity hastened to agree. She was right, it was unfair of her to sully any more of Sunset’s things. “Very well, I shall use… the bowl.”

Steeling herself for what was about to come, Rarity proceeded down the hall and stepped into the bathroom. Almost immediately, the stench overwhelmed her. She gasped and held her breath as she closed the door behind her.

“Oh… oh goodness-” Rarity clamped a hand to her mouth as her stomach heaved, and her eyes widened in panic as she realized she was about to vomit. As quickly as she could, she dove over to the toilet. Pinkie’s cooling, fetid mess did nothing to quell the bile rising in her throat, and with a loud heave, Rarity opened her mouth and retched.

Sour, chunky sick rushed out of her open mouth and splattered down to cover the monster turds in the toilet. The disgusting yellow slop completely coated the shit as another heave rocked through Rarity’s body and she spewed even more of her puke into the toilet. This action repeated itself a few more times, with less and less half-digested spew pouring out as her stomach emptied itself.

The burning in her throat forced a few weak coughs out of Rarity as she pulled herself out and away from the toilet, her breaths heavy and labored as her nausea finally settled. She tried to calm herself down, breathing through her mouth to not let any more of the disgusting odor in as she anchored herself back into the moment.

“Rarity!” exclaimed Sunset as she peeked around the door. “Are you okay?”

“I’m… I’m fine, dear,” gasped Rarity, her throat raw. “It’s just… the smell… ugh…” She held in a gag as another wave of nausea churned her stomach.

Sunset’s nose wrinkled as the potent stench in the bathroom hit her as well. It was indeed quite strong, even if it didn’t bother her as much. As a matter of fact, she wouldn’t mind staying in this fetid odor for a while, breathing it in and letting it soak into her as she toyed with her dripping slit. But Rarity, it seemed, did not share in her unique proclivity for bodily waste, and Sunset could recognize that the smell in here was absolutely disgusting.

“Why don’t we uh… you don’t have to do it in here,” Sunset suggested as she watched Rarity swallow thickly. “I mean, you could always just use my bedroom?”

Rarity raised an eyebrow as she distanced herself from the mess in the bowl. “You must be joking,” she said aghast. “I wouldn’t want to… defile your bedroom in such a way. I shall simply suck it up as they say and relieve myself here.”

Sunset shook her head as she reached down to pick up the bowl that currently held Rainbow and Applejack’s shit. “No, it’s fine. There is a window in there that I can open up to help air it out. It will be better for everyone, I think.”

Rarity still seemed hesitant, but the smell was getting to her again and she swiftly left the bathroom before another bout of queasiness could take over. “Well, if you insist. It would be remiss of me to argue with you in your own apartment,” she said quickly as she passed by Sunset.

Secretly, Sunset was very pleased by this change of events. While an open window would in fact help to mitigate some of the odor emanating from the bowl, it wouldn’t fully remove it from the room. Sunset’s pussy figuratively gushed as she breathed in the stinky fumes from the bowl she carried to her bedroom, imagining this smell permeating her room for days afterwards.

She tried not to be too obvious in her arousal as she set the bowl down by the edge of her bed. Sunset took another deep breath and tried not to linger too long, even though she enjoyed the warmth of the shit in the bowl against her cooling hands. If anyone noticed, (besides Rainbow, she guessed), they might accuse her of suggesting a solution such as this for less than pure means, and that was an awkward conversation that she was not ready to have.

Rarity followed into her bedroom, dabbing at the corners of her mouth with the towel Sunset had given her. "Thanks darling," she said, her voice still shaky from her heaving. "Apologies for having to deal with... that."

"It's uh... it's no problem. Are you okay?"

The other girl waved off Sunset's concern. "I'll be fine. It was just the odor that got to be. It's much less offensive in here." Rarity paused, a grimace on her face. "Not that the smell of your bedroom is offensive at all, really. It's very clean." Rarity nodded as Sunset crossed the room to open a window with a flat look on her face. "The uh, fresh air is nice, though."

"Do you need anything else, or can I leave you to it?" Sunset asked as she walked back over to the door.

"No no, I should be fine," Rarity replied with a wave of her hand. As Sunset left and closed the door behind her, she added under her breath, "Well, as fine as I can be with this situation."

Not seeing the point in hesitating any longer, she hooked her fingers into the waistband of her pants and underwear and gently pulled them down. Her legs trembled slightly as the cool air from the cracked window hit her bare thighs. The fabric pooled around her ankles, and she daintily stepped out of them before neatly picking them up and draping them off the edge of Sunset's bed. Now clad in only her socks and a thin, pink sleepshirt, Rarity stepped over to where the bowl of cooling scat lay at the foot of the bed, and squatted down.

Her hand reached down between her legs to gently part her labia, spreading her lower lips wide as she prepared to empty her bladder. It didn't take much effort, Rarity had been feeling quite the urge to go, having held off for so long after Pinkie Pie's unfortunate accident. A golden stream of hot urine spewed out from her parted flower, splashing down upon the logs of smelly shit in the bowl and flowing in between the gaps to pool underneath.

Rarity let out a sigh as the pressure in her abdomen lessened. She tried not to think too hard about the nature of what she was doing in Sunset’s bedroom, or the disgusting concoction she was brewing in the mixing bowl. And she tried even harder to not wonder about what baked items Sunset had made for them in it. Realistically, she knew that Sunset would probably never use this bowl for cooking again, but a small part of her couldn’t help but wonder. But she quickly chased the thought away before her stomach churned again. She really did not want to have a repeat of her incident in the bathroom.

As she let her piss flow, however, a secondary need became known. A gentle pressure had built up just behind her anus, and Rarity slowly became aware that she actually needed to poop as well. 'Well, might as well,' she thought to herself, and let nature take its course.

A dry, crackling fart escaped her tight rosebud, a precursor for what was about to come. The tight hole flexed a few times before opening up around the head of a fresh loaf of feces. It descended slowly, hanging down from Rarity's pucker in a perfectly-formed mass. Somehow, even the fashionista's shit reflected her sophisticated personality.

The turd fell from her ass with little fanfare, leaving behind only a faint smudge of fecal slime on her otherwise pristine pucker. Her ring of muscle flexed a few times as Rarity checked to see if there was anything waiting in her rectum besides what she had just squeezed out. Evidently there was not, and instead the girl just gave a subtle shake of her butt before standing up.

Rarity looked around to see if there was anything to wipe herself with, frowning when nothing immediately caught her eye. While she was not pleased about being dirty, she wasn't about to sully any of Sunset's upholstery. Perhaps she could convince her host to brave the foul stench of the bathroom once more to retrieve some toilet paper...

As she turned around to collect her things, she just happened to glance down at the bowl on the floor, and she froze.

Rarity hadn't originally needed to defecate, and thus, had not positioned herself properly over the mixing bowl to catch her excrement. The need to evacuate her bowels had come midway through relieving herself, and she had forgotten that her target was that much smaller than a toilet bowl. As a result, her fresh, steaming log of shit lay on the carpet just behind the bowl.

She swallowed thickly as her eyes darted between the poop and the door and she wondered what to do. She couldn't just leave it there, that was for sure, and she was not too keen on asking for someone else to take care of it. Biting her lip anxiously, Rarity once again took a cursory look around the room to see if there was anything to grab it with. But short of the blankets on Sunset's bed or her own clothes, she found nothing.

There was nothing she could do besides clean it up with her bare hands. She swallowed thickly, pinching her eyes shut for a few moments before taking a deep breath to try and calm herself down. ‘It’s going to happen anyway, dear. Might as well just get it over with,’ she thought to herself, and knelt down besides the bowl.

"Ew ew ew ew ew ew..." Rarity muttered to herself as she reached out a shaky hand towards her mess. She could feel the radiating warmth of her fresh excrement against her bare palm, and the sensation halted her progress.

A sudden knock on the door startled Rarity and she jumped, almost falling onto her butt in the process. “H-hello?! Yes? What is it?” she called out as she steadied herself.

“Rarity?” came Fluttershy’s timid voice. “Are you… are you almost done in there?”

“Oh, yes! Yes, almost!” Rarity cried back, and squeezed her eyes shut as she fully grabbed onto her poop. It felt warm and sticky and just downright gross in her hands, but she powered through the sensation to pick it up and drop it unceremoniously into the bowl. “Ewwwwww…” she quietly squealed. She resisted the urge to wipe her hands on anything and struggled to put her pants back on with just one clean hand.

The action proved itself difficult, and took longer than she had hoped, a point that was emphasized by Fluttershy’s desperate knocking. “Rarity, I- I don’t think I can hold it much longer!”

“Sorry, sorry!” Rarity called back as she hobbled over to the door, pulling her pants up as much as she could. There wasn’t much more she could do one-handed - but she could deal with it later. Right now she just really needed to wash her hands, lest she be sick again.

She pulled the bedroom door open urgently and brushed past Fluttershy to race towards the kitchen sink. “Sorry, dear, I just really need to wash myself, eeeeeeek!!” Rarity’s disgusted shriek trailed her down the hall, but the desperate Fluttershy couldn’t care less as she shuffled into the room and closed the door as quickly as she could. She did not even bother locking it before rushing over to the bowl.

As soon as she was over her target, Fluttershy reached and pulled her pants down. Any hesitance she might have felt previously at such an indecent act had progressively evaporated as her desperation grew. Her stomach really had not been agreeing with her since the cookout, and the intense gurgling and gas that had plagued her for the past six hours was finally demanding release. She had barely squatted down over the bowl when the rumbling in her gut forced its way out of her asshole in a loud, wet burst of anal air followed by an immediate deluge of wet, formless shit.

"Oooooohh," moaned Fluttershy as the diarrhea squirted out of her loose anus. The thick slop piled up on top of the mess left in the bowl by the girls before her in a quick burst. There was a pause for a few moments as she panted a few times before she pushed again, squeezing her rectal muscles to let out another round of loose crap. Noisy, bubbling farts accompanied her pushing before another spray of shit flowed out into the bowl.

She clutched her tummy as she blew the sickly contents of her ass out into the bowl. It seemed like the runs just wouldn’t end. The ring of her anus flexed around a few, more semi-solid clumps of crap that snuck out but they were quickly buried under another round of brown and bubbly liquid filth as soon as they landed in the bowl.

After a few final spurts of shit from her ass, Fluttershy's finally breathed a sigh of relief. The pressure in her tummy was gone, and she felt a hundred times lighter than she had before. "Oh, gosh," she panted out as she shakily stood up. "Oh my..." That had taken a lot more out of her than she had thought it would. Or maybe it was just the strain of holding it in for so long. Either way, Fluttershy was glad that the whole ordeal was finally over.

As she stood up though, she soon encountered the very same issue Rarity had, if not worse. Fluttershy's crap had been particularly messy and there was nothing for her to wipe with. She could feel the thick sludge clinging to the ridges of her pucker, and as she stood up it smeared on the inside of her buttcheeks. Her gaze flitted around the room desperately as she tried to find anything to clean herself up with, but nothing disposable was immediately apparent. The last thing she wanted to do was to go back out into the living room, shit still coating her ass, and be mortified as the other girls slowly caught on to the nasty smell emanating from her rear. Nor did she want to go through the mortifying ordeal of calling out to one of them to ask for something to clean up with.

Then, her eyes spotted something.

Sunset's laundry hamper was hidden in her closet, just peeking out behind a half-way closed door. Fluttershy quickly waddled over to it, careful to not let any of her stinky mess fall to the carpet as she went. It was clear that her friend needed to do laundry soon, as the hamper was almost overflowing. But just under a couple pairs of discarded panties lay exactly what Fluttershy was looking for: a damp towel, likely from Sunset's shower the previous night.

Fluttershy bit her lip as she dragged the towel up between her legs. The fabric rubbed against her sensitive pucker, pulling along the leftover scat as it went. She made a few passes, doing her best to ignore the strange pleasure she felt from the act as she did so, before she pulled the towel away and inspected herself in the mirror on Sunset's wall. She wasn't perfectly clean. There was still a faint brown smear that stained the yellow skin along her crack, but the large chunks of smelly shit were gone at least. A cursory glance at the towel confirmed that it was all there, smudged in between the damp cloth fibers.

She folded the towel back up so that her mess was hidden in the folds before placing it back in the hamper and rearranging Sunset's panties on top. A small, horny part of her realized what she was touching, but she pushed down the impulse to fidget with the lightly stained underwear any more than she had to before closing the closet and retrieving her own panties from the floor.

“How about one more round?” Applejack suggested as Fluttershy returned to the living room. It seemed as though the fun was winding down for the night as it was already pretty late. “Fluttershy, you wanna join in this one?”

Fluttershy smiled. “Sure!” She went to take a seat on the floor next to Rainbow, but Twilight stood and waved her over.

“Take my seat, Fluttershy,” she offered. “I think it’s my turn to use the bathroom- er… the bedroom, I guess?” Sunset and Rainbow chuckled while Rarity, having finally resigned herself to the bathroom jokes, simply rolled her eyes.

As she entered the room, Twilight very quickly decided that the bowl was too full for her to accurately deposit her own load into as well without making a significant mess. She did not want to go back out there and ask Sunset to come and empty it, nor did she really have any idea as to what her friend was planning to do with the large amount of feces. (And once again, she did not really want to go out and ask.)

Upon a closer look at the bowl of poop, Twilight figured that she could probably fit the modest amount of stool she usually produced on top of the existing pile. But never having needed to aim her ass before, still was not confident she could do so.

An evaluation of her own need to defecate assured her that it would be pretty much solid, and she decided what she was going to do.

Standing beside the full mixing bowl, Twilight lowered her sleep pants down followed by her lavender panties and squatted down to the floor. This position parted her round asscheeks to bare her tight rosebud to the room behind her as well as her plump pussy lips. Carefully, she reached down and put one of her hands between her legs, just underneath her ass. She was going to catch each turd as it squeezed its way out of her ass, and then deposit them on top of the existing pile.

Her asshole promptly opened up to reveal her waste. It advanced at a steady pace as she pushed, although she did need to adjust her positioning a few times to ease the pressure in her gut. The feces crackled as it slid out, and the tip of it just barely touched the center of Twilight’s palm before things started to go wrong.

The sudden contact added to the resistance of the smelly log, and so Twilight pushed harder to try and force it out. A hot, dry fart slipped out around the crap as it slid forward another inch or so and bent against her upturned hand. Twilight took a deep breath and pushed again, sighing in relief as the pace of her excretion increased.

But then, as she was pushing, a sudden burst of hot, yellow piss spurted out from her cunt and splattered across the floor in front of her. It gushed against her forearm as it arced out, and her eyes widened as she struggled to react to the sudden predicament.

“Oh shit, oh shit, oh shit!”

One thing that Twilight had not accounted for in her theory was the need to pee. She clenched as hard as she could to cut off the flow. Her butthole clenched as well, cleaving the soft log dangling from her ass in half and letting it fall. Thankfully, she managed to catch it in her upturned palm. Her piss also gradually tapered off to a slight dribble, but the damage was already done. A dark, linear stain streaked out from between her parted thighs almost to the edge of Sunset’s bed in a long, wet arc. Already, the acrid scent of her piss was wafting up into the room as her brief urine flow piddled to a stop.

“Well… crap,” cursed Twilight as she looked at the mess she had made. Sure, she had caught her poop, but she did not really have a solution to pissing on Sunset’s carpet. She did at least have more control over her urine stream however, and so she shuffled over to the bowl and squatted over it instead. Once she was sure that her piss would make it into the receptacle, she relaxed herself again and let it flow.

With the brief interruption, it took a little bit of effort to get started again, but once she started peeing again it came full force. Twilight pushed on her rectum as her bladder emptied itself atop the messy piles of crap left behind by her friends, and her anus once again opened up and the remainder of her log came slithering out of her ass. She caught it just as easily as the first, and was briefly surprised by how heavy just the one turd was. But she did not have much time to dwell on it, as the pressing need to shit was still knocking at her back door.

The girl resumed pushing and let out a quick, popping fart as her pucker spread open around the head of some more poop. It came out easier and quicker than the first one, and the hard, knobby texture quickly became softer. Her asshole sputtered as the rope of soft shit coiled out of her ass and piled up on top of her previous crap, and Twilight panicked slightly as she felt the feces brush up against her parted cheeks. She rushed to lower her hand to allow more room and let the rest of her soft poop empty out of her rear.

Once she was certain that there was nothing left in her colon, Twilight removed her hand out from underneath her and lifted her waste up to look at it. The original, solid logs she had pushed out were on the bottom of a pile. Their darker color and knobby consistency made them stand out from the creamy, soft scat on top. The softer poop was still pretty solid, and she could identify the entire length of it, even if it was deformed and sagging under its own weight into her hand.

Curiously, Twilight took a brief sniff, noting that the scent was not as pungent as that which was coming from the bowl below here. It was stinky, of course, but there was an underlying familiarity to it. It was probably a phenomenon similar to not minding one’s own farts as much as others, she idly thought to herself. Either way, she couldn’t help but take another, deeper sniff of her shit before bringing it back down and away from her face. She would have ample opportunity to experiment with her feces later, when she wasn’t in her friend’s bedroom.

With a gentle tilt of her hand, she let the scat fall down into the bowl, piling neatly on top of Fluttershy’s liquid shit. Sure enough, her addition had filled the mixing bowl to the brim, and it couldn’t possibly hold any more. She shook her hand a little bit to let any straggling sticky waste fall off. A few brown smears remained, but nothing that couldn’t be easily washed off in the sink.

The bigger problem was the piss stain on the carpet. It wasn’t a lot of urine, but there was definitely enough for anyone to notice, and the scent would linger for a while if not cleaned immediately. Even though she didn’t want to, Twilight realized that there was no other choice at this point than to go and get Sunset to let her know.

"Hey, Sunset?" Twilight said. "Can you come here?" She paused for a moment as Sunset got up from her chair and came over to the bedroom door. Twilight didn’t really want to shout down the hallway. "So, the bowl is definitely full," she started. "I kind of had to improvise in order to fit my own feces in there." She raised up her palm so that Sunset could see the brown streaks still present.

'Oh my God that's fucking hot,' thought Sunset.

"Sorry, that's probably gross," winced Twilight.

'Not it's not.'

"Forget I did that." As they entered the room, Twilight's face fell into a frown. "Oh, and uh..." she trailed off as Sunset walked ahead of her towards the bed. "I might have missed the bowl a little bit."

Sunset almost didn't hear what Twilight said as she stared in shock at the very full bowl. She knew that six girls' worth of shit was going to be a lot, but nothing could have fully prepared her for the sight of that much poop collected in front of her. Her pussy pulsed with need, and she subtly shifted her thighs to try and reign her lust in. And then she noticed what Twilight had been talking about.

"Oh... you missed missed..."

"Yeah, I'm sorry about that," Twilight said bashfully.

Sunset shook her head, perhaps too quickly. "Don't worry about it, it's fine," she reassured her. "Not the... uh... worst thing that could have happened," Sunset said, biting her lip and hoping it wasn't obvious just how much she wished it was more than just piss on her carpet.

Twilight still fussed, however. "If you can just tell me where some supplies are, I can clean it up. With Spike I kind of know how to get um... urine out of a carpet..."

While Sunset wanted to just leave it there, she realized she probably still needed to keep up appearances. Also, if she didn't cum soon she was going to lose her mind, so she simply led Twilight to the cleaning supplies and let her get to work as she picked up the big bowl of shit to bring it to the bathroom.

"I'll take care of this," she said, fighting the urge to moan as the fumes wafted up into her nose. "I don't think anything else will fit in here."

Twilight chuckled as she got down to her knees with the bottle of cleaner. "That's what I said. Hopefully you don't have to go!"

Sunset had already cursed herself for taking care of her business earlier in the evening. It would have been so freaking hot to top off the pile with her own fresh batch of scat, but alas, her ass was empty. It was okay though, she had an entire bowl full of crap to play with instead, so she couldn't really complain.

Sunset eyed the bowl as she headed back into the bathroom and set it down by the base of her toilet. There was no use denying it, just the sight of it made her incredibly horny, and the foul stench flooding her nose did not help in that regard either. She bit her lip as one of her hands idly played with the waistband of her sleep shorts, desperate to feel just how wet she was. Desperate to touch herself.

“Fuck it,” she sighed. Sunset leaned her head out the bathroom door and peered down the hall towards the living room. “Hey girls? Change of plans. I think this cleaning up is going to uh… well, I kinda want to take a shower now…” She pinched her eyes closed. It was a lie, but one that she hoped her friends would understand. At least, they would understand that more than the real reason Sunset was going to be in the bathroom for a while.

“That’s perfectly understandable, dear,” Rarity called back to her. “Heaven knows I would want to scrub myself down after dealing with that unpleasantness.”

Sunset gave herself a silent cheer. “Okay. Don’t wait up for me! I don’t know how long this will take between the cleanup and then the shower.”

She closed the bathroom door and made sure to lock it. She didn’t want any interruptions. Then, as fast as she could, she began to strip down, practically tearing her clothes off of her body. Sure enough, as she peeled her panties off of her slit she saw just how wet she had gotten from the night’s events. Her pussy was soaked, and she would probably need to fetch a new pair of underwear from her room afterwards. Or she could always just sleep commando… ‘Enough sexy thoughts, Sunset!’ she chided herself. ‘You have a giant mound of cute girl shit in front of you! Fucking get to it!’

Without any further delay, Sunset climbed into the bathtub, bringing the bowl with her. She set it down between her legs as she sat down on the cold floor of the tub, and swallowed thickly in anticipation. After a moment, she reached forward and turned the faucet on - not enough to get her wet, but hopefully enough to cover whatever depraved noises she was about to make. Then, she reached down towards the poop-filled mixing bowl.

As her hand hovered over the pile of shit, she was impressed to still feel some faint warmth coming from the mound. She had expected it to all be cool by now, especially with her bedroom window being open. But with that much warm crap together, she guessed it made sense that some warmth was retained. She lowered her hand even more until it was just above Twilight’s latest addition, and then, she made contact.

Sunset did her best to hold in the downright pornographic moan that rose in her throat, escaping as more of a needy whine as her hand sunk into the soft filth. “Oh, shit,” she gasped as the thick scat smeared across her palm. She lifted it out, marveling at the brown sludge coating her fingers for a moment before she pressed down even harder.

This time, a low moan did slip out as her fingers cleaved through the mess. She could feel each distinct layer of shit, from the creamy, soft coils that Twilight had deposited above Fluttershy's liquid diarrhea, all the way down to the firm logs that Rainbow had left at the bottom of the bowl. Rarity's piss has pooled at the bottom as well to form a fetid slurry that made Sunset want nothing more than to bring it up and smear it all over herself.

So that's what she did.

Without any restraint, she lifted her hand out of the bowl with a generous scoop of poop mounded in her palm and plopped it right down between her breasts. The cool muck settled nicely there, and she let out a low moan as the more liquid consistency drooled down over her tits and down her stomach. Without any care, the girl pressed her palm against her chest, smearing the filth around her skin in thick, dark streaks.

“Ohhh fuuuck,” she moaned under her breath as the shit coated her skin. She worked her hands against her breasts and played with her sensitive nipples, making sure that every inch of her rack was coated. All of the girl’s waste had mixed together at this point, but Sunset could still tell them apart slightly by the variations of brown in the different streaks.

Sunset’s breathing got faster as she reached in to get another thick lump of crap and dropped it on her lower stomach, just above her soaking wet cunt. Her other hand was still fingering her pussy, and her wrist smeared against what looked like half of the diarrhea-coated, fecal log - maybe Rainbow’s? It didn’t really matter, it got squished together into a thick, gritty paste all the same as her hand briefly left her snatch to drag the crap back towards her wet cave.

It smeared across her pubis as it went, completely coating the small patch of hair she kept trimmed before slathering across her lower lips like some perverted mud bath. She spread it around with her palm, smashing the fetid paste over her crotch and making sure it covered her inner thighs as well. Sunset bit her lip as she spread her legs even more to gain even greater access. Her middle finger slipped between the underside of her asscheeks, and toyed slightly with her tight pucker, smearing a generous amount of soft scat as it went. She was practically grinding up against her forearm as she toyed with her ass, and she could feel the tension building in her core. Sunset needed to cum.

And so, Sunset gave her asshole one last firm prod before she dragged her hand back, collecting a healthy glob of scat along the way, and shoved three of her shit-coated fingers back into her cunt.

The shit had just barely worked its way into her pussy before her back arched and Sunset slapped her other hand across her mouth to try and hold back a long low moan. She didn’t even care about the poop that was now smeared against her lips and cheeks, her body too focused on the climax. She continued to fingerfuck her cunt as it spasmed and a gush of hot, wet fluids fished out to coat her hand and splatter on the floor of her tub. “Holy fuck holy fuck holy fuck!” she gasped as her orgasm tore its way through her body.

She fell back against the floor of her tub, her entire body shaking as she tried to even her breathing. Waves of pleasure continued to coarse through her body as Sunset slowly withdrew her fingers from herself and gently drifted down from her orgasmic high. “Whoa…” she breathed out. She didn’t think she had ever cum that hard in her life, and she had taken an entire stallion before! (As a pony, of course…)

With a chuckle, she licked her lips, briefly surprised by the bitter taste of shit that she found until she realized why. Looking around herself at the mess she had made, she realized that it was going to be one hell of a scene to clean up. Her entire torso was completely covered with her friend’s poop, from her tits to her slit with a thick blob of it nestled between her two perky breasts. She idly reached up to pull it off of her and throw it back into the bowl between her legs, which had at some point upturned to leave a sickening mixture of piss and shit on the floor of her tub. Her foot had ended up in it somehow, and left a thick brown streak down towards her drain, along with the coating on her heel.

“Well, fuck…” Sunset muttered as she looked at the state she and her bathroom were in. “This is gonna be a bitch to clean up…”

Even after the thorough shower, there was still the faint lingering smell of shit underneath all of Sunset's clothes. She figured there was nothing she could do about it besides a little bit of perfume, and so she dabbed a little bit on the back of her hand and then made her way back to the living room. It seemed like almost everyone was already asleep as she scooted herself into her sleeping bag, but she froze as she caught Pinkie's eye.

Her friend was staring at her from her own sleeping bag with a knowing glint in her eye. Sunset started back at her like a deer caught in the headlights, halfway in her sleeping bag. But after a moment, Pinkie Pie just flashed her a sleepy smile and a flirty wink before turning back over and settling back into her bag.

Sunset remained frozen for another moment, unsure of how to process the gesture. Did she somehow know what Sunset had done? Could she smell her subtle stink from all the way over there? Sunset discreetly sniffed herself. The stench of poop was pretty well masked by her perfume. Maybe she had heard her.

She lay awake in her sleeping bag for almost a half hour, wondering what Pinkie had meant. Was it possible that she knew? Was she interested? Sunset bit her lip, and tried not to let that horny thought build too much traction. It wouldn't do to get her hopes up, and also, she wasn't wearing any panties and really did not want to flood her sleep pants with her pussy juice. But as sleep finally took her, she figured that she might just need to wait until the morning to find out.

Author's Note

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