[Filth, CowGirl/Boy TF, Femdom, Scat]



“Hmph! Bakugou’s such a stupid… Stupid head…”



It hadn’t been long since Ochako Uraraka had lost in the tournament her school held, against one of the boys that were impossibly strong to boot. She concocted such a clever scheme too, make him knock the floor loose until he accidently caused enough debris to gather above him before she’d release her ability and make it all fall down on him. It hadn’t worked, but it was a very honest attempt.



Even though she had done her best, she still couldn’t beat him, and that made her bite her lip in frustration. Now she couldn’t show Deku how far she had come, she couldn’t get all the cool views from the Pros, so she couldn’t get an internship and then she couldn’t make money for her family. It all came back to bite her in the butt, and that’s what kept her in such a lousy mood.



She couldn’t even muster up a smile as she turned her head to look towards the weird box she had received from some weirdo when she was walking out shamefully. They had told her that they were a huge fan, and wanted to give her a gift to show her how much they appreciated her effort in the ring. Yeah. Totally. It could just be a creep that wanted to force something on her and at this point she wouldn’t care.



The brunette sighed as she lifted herself off the bed, using her power ever sparingly to avoid tumbling onto the ground in the process before carefully floating towards the box, opening it with her foot just to be safe and secure. Once it was opened, she couldn’t believe what she saw inside…



...A plain looking bikini that looked a few sizes too big for her. Was this some sort of sick joke? It had to be a sick joke. It was probably Denki’s fault, or maybe Sero or one of the other troublemakers. Surely they would think of hiring some weirdo just to give her a degrading outfit that didn’t even fit her.



“Could they at least have given it to Momo? She’s the one with the huge tits for crying out loud!” She was just about to toss the box, only to regain a bit of her rational mind as she looked at it a little more. She examined it, carefully studided it, rustled it about a few times as she thought very carefully about all of this.



Even if it was some sort of sick joke, was it really right to toss it away and not at least try it on? It didn’t look harmless, so maybe there was some worth in it. Hey, maybe she could sell it online and make a tidy profit since it seemed to be of high quality stuff, that could probably cover what she would’ve earned from the pros.



With that in mind, Ochako undid her power and landed on her feet before opening up the box again and pulling out the outfit. It really was just nothing but an oversized bra and a black and white thong that looked a little small compared to the bra it came with. Maybe there was a good reason for that, but she wasn’t the type to look in depth with fashion. She didn’t have nearly enough money to do that.



She sighed deeply before shaking her head, getting to grips with it all. She had to do this. Just put it on, try and see how it feels, then try and find whoever gave it to her so she could apologize. She kept herself focused on that task as she stripped down into her undies and let even those fall to the floor, giving her more than enough room to get the bikini on.



The young student started with the thong-like bottom as she slid her legs through the leg holes, yanking it up and finding herself quite surprised as it stuck to her like it was glued on. Once it was safely nestled in between her crack and her snatch, it was hard for her to pull it back down, almost as if it was lodged right in there. Which she thought wasn’t that bad, it meant that she could focus on the bikini top and not worry about it falling off her waist.



Not realizing that something was starting to grow right above her buttocks…



Ochako gave the top another few looks, stretching it here and there to make sure that it wasn’t just a type of fabric that had grown in the wash or something. She no dice, it was elastic if anything, which meant that this was its regular size. About five cupsizes above hers, and she wasn’t a flat girl by any means. So she was stuck with a top that’d drape against her body, fantastic.



She shook her head one more time to focus as she put it on, and sure enough the moment after she wrapped it around her waist, it just flopped up against her tits and completely covered them up, showing just how inadequate she was in comparison to whoever this was intended for. “Great. Greaaaaat.” She mumbled under her breath, feeling a bit dejected.



Though, she hadn’t quite given herself a look in the mirror. Surely she couldn’t look awful, could she? She’d just look kinda silly but her breasts wouldn’t look tiny when covered by them. That’s what she hoped, anyway.



Maybe if she had focused on her breasts and actually rubbed at them while they were covered up, she could’ve realized that they were growing and she just couldn’t see it.



Ochako walked over to her full-length mirror, hoping not to see a certain look staring right back at her. She hoped that her bosom would be plentiful enough to not look sad when covered by the cow-patterned cloth…



Only to turn out pleasantly surprised as she… well, she had somehow grown much fatter in the breast department when she stopped looking at her tits. By this point, they were growing so much that it was the bikini that looked like it was undersized, as both of her nipples were barely covered by the tiny yet stretchy fabric. It wasn’t about to snap off or anything, it was just undersized.



Her hips weren’t half bad either, with the stretchy fabric below clinging to her buttocks and digging in by every passing second. In fact, it made her squeal ever slightly with how wonderful it clung to her body, a sensation she hadn’t had the chance to enjoy since… well, ever!



“Oh my gosh, I’m actually hot!” Ochako chimed in glee as she bounced up and down, her fat ass and tits bouncing with her as she actually looked like she could attract the entire school with that new look of hers. She felt like she was on cloud nine! She could do it all!



That was, until the rest of the outfit’s effects took hold. It didn’t take long before there weren’t just four masses bouncing along with her, soon there were five, and one was drastically enormous compared to the other four that had grown rather lovingly themselves.



She looked down in shock to discover that she had grown a massive belly out of practically nowhere, with the flabby sack of meat flopping around even when she just wanted to turn around. The thing weighed a ton too, yet she strangely didn’t seem too bothered by it. She just felt like she wanted it to be gone, since it didn’t fit with the rest of her sexy body.



Ochako rubbed away at it with a furrowed brow for a few moments, only for a moan to echo through her mouth. She gave the belly a jab, and her nethers grew wet and slick. She couldn’t believe it, was she turned on by playing with her fat belly? No, that couldn’t make sense, she couldn’t be into that…



But it had to be the truth, because the more she played with it, the more the tail that had secretly sprouted right above her ass started waving around, her delight becoming more and more visible as she slowly started playing with her new popped-out belly button, gasping and growing hotter by the minute…



There had to be something that the outfit did to her, and she couldn’t tell what. Maybe if she concentrated, she could get the thing off… maybe… if she just…



Her mind drew up a blank as she felt a pressure growing in her stomach, a pressure that she needed to get rid of. Part of her screamed to ignore it, but an ever increasing and deeper-sounding version of herself told her to just push and let loose. She didn’t need to listen to anything, she just needed to get rid of what bothered her. That’s how a cow handled things, and that’s what she was…



“N-No, I’m…” Ochako muttered as she tried to resist the temptation from the deeper voice, but her body didn’t wanna bother. It understood what it was being told, and so it started pushing without its mind agreeing. She barely had a chance to brace herself for what came next…



Her stomach erupted, and from within a loud and powerfully brassy ‘BRRRAAAAAAAAPPPPP’ echoed out from her rear, filling the room with a thick green gas that was as filthy as she was fat. It wasn’t the only thing that came out of it either, it was merely just the foreplay. A foreplay that left the girl dizzy, her mind trying to keep up with all of the influences that tried to subvert it…



She squatted down on pure instinct, and what came next was almost natural. The turd that slid out of her hole was made up of her resisting feelings, as she let out a loud and orgasmic moan as it left the inner parts of her ass. The thong that was practically glued to her ass carved the shit in three parts as it fell onto the floor, and the cow of a girl that took that shit slowly played more with her belly. A sign that she was falling further and further.



Within her mind, the last vestiges held by her sane self, a plan was being brewed up. She had to do something. She had to get help from the two boys she trusted, so that she could hopefully get the outfit off and return to normal.



She just hoped they’d know what to do…



---



The very next day, she left a note that one of the boys hopefully would find, telling them to go meet her in the boys’ locker room. She hoped that would be enough to attract the two she needed, and the only ones that could possibly stop all of this.



Ochako’s smile was radiant as she saw both of the boys, Deku and Bakugou, enter the locker room. She had managed to keep herself in control and avoid making another mess, just so that the two could still talk to her…



Unfortunately, she had neglected to look at herself before she left her home.



 “U-Uraraka..? I-Is that really you?” The moss-haired boy asked as he trembled at the sight of her, not being able to comprehend that such a sweet and lithe girl who always smiled from the bottom of her heart was able to turn into a cow-themed messy bitch like her. From the tits that were bigger than her head, the nipples that poked through her bikini dribbling with what looked like expired milk, the fat belly that took up 50% of her figure and looked like it could drag onto the floor at any moment, or the fat ass that was constantly fuming with scents that humans wouldn’t dare get whiff of. He wasn’t prepared to look at his friend in such a vile form…



Bakugou on the other hand wasn’t as kind. He did consider her a great opponent, considering the brink she pushed him to, but he wasn’t here to talk with an oversized pig acting like a girl. “The hell are you playing at, Uraraka?!” His sweat started igniting as he grew pissed. More so, rather. “DID YOU PIG OUT JUST BECAUSE YOU LOST? WHAT ARE YOU, A PATHETIC WASTE OF SPACE?!” He shouted, egging her on as he got closer…



The insults that he slung at her was enough to bury the sensible part of her mind. The last thing she could say before she was sucked in by all the filth trying to claw its way to the forefront was accompanied by a single tear.



“I’m sorry…”



Almost immediately after that, her ass exploded as she whipped it around, letting the stench and thick gas blast directly at both boys, with the wide hole that had been stretched by shit after shit blasting out turd after turd that landed harmlessly on the ground, further stinking up the locker room in the process.



Both boys were left incapacitated as their vision grew hazy, with Deku inhaling way more than was healthy for a boy like him. Instinctively, Bakugou tried to blow the gas away with his explosions, but that just made it get more personal with his face, both of them coughing and wheezing as they stumbled around in the thick cloud…



As the two bumped into each other on accident, the oversized cow grabbed ahold of both of them and violently slammed them to the ground, a show of the new power she had acquired. She wasn’t able to mess with gravity any longer, and she wouldn’t need that at all. She wore her outfit with pride, especially as her filthy and expired body continued to stain away at it…



“You two…” A deep, sensual moan echoed from the girl’s lips as she took her position right above ‘em, grinning and licking her lips. “You’ll pay for those words you said…” Her thoughts weren’t right, and she didn’t care. They seemed to be saying bad things, so she needed to punish them. And the best way for a Cow like her to do that, well it should be obvious.



Ochako grabbed ahold of her cheeks and spread them as far as she could, grinning and snorting a little as she pushed. The filth that came next was all natural, and thanks to putting her heart into it, far too much for any human to handle. It flowed out like a waterfall, the sloppy shit falling out and covering both boys in mere moments, and even once their heads were completely smothered, she still kept on pumping more and more out, right up until the only thing that left her ass were fumes smelling like hell on earth…



Both boys let themselves be submerged, not even struggling as the filth poured down on them. Only once they had been fully covered did something change within them, both gasping as they emerged from underneath the muddy pile. Their eyes had turned pure black and white, while their hair was spotted just like a cow’s hide. Their bodies were given the very same treatment, with white hues and black spots decorating their forms. All topped off with a pair of tiny horns growing from their heads, and a fat set of nuts complementing their absolutely pathetic looking thumb-sized cocks.



By being marked and buried under the cow-like Heroine’s shit, they had forever become the Cow’s slaves, her territory. They were like little slave cows, existing only to be abused, as her gas made their tiny clit-like cocks squirt with delight as they both mooed. Nothing was left of their unique personalities…



And neither was there for Ochako, the girl who had become a cow. Born again as a villainous bovine, she had plans for her other classmates, as she started playing with her new slaves’ cocks...