Tags and Trigger warnings: Emetophilia, vomiting, stuffing, overstuffing, liquid stuffing, belly kink

Summary: In which Bakugou and Deku participate in the milk challenge.

Posted to Ao3: September 15th 2021

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"This is so fucking stupid, Bakugou huffed as he sat down in one of the nearby lawn chairs.

Deku chuckled as he sat down in one of the lawn chairs across from Bakugou. "If you think it's stupid you don't have to do it you know."

This was probably the 5th or 6th Bakugou had uttered that phrase but he'd still followed Deku out here. He'd still sat down in the chair, his gallon of milk in hand despite the deep frown on his face and the glare in his eyes.

"No, fuck you I wanna win," Bakugou grumbled.

And Deku smiled slightly, there it was. Bakugou's ever-present competitive streak, it wasn't as if Deku didn't have one either but he tended to hide his better than the latter.

Admittedly Deku wanted to win as well although he couldn't help but be slightly intimidated now that the gallon of milk was right in front of him. Still, neither he nor Bakugou were strangers to eating a lot, especially if they had training to do so Deku shouldn't have too much of a problem doing this if the same rules applied.

Reaching out to the nearby plastic table where he'd placed the timer, Deku sets it for an hour. The rules were incredibly simple, they each had to drink the full jug of milk within the time limit and keep it down, if one of them was unable to then that person was the loser.

"Okay, the timer's set," Deku muttered to himself. "Ready?" he asked Bakugou as he removed the top from his own jug of milk.

"Ready to beat your ass, hurry up and quit stalling," Bakugou huffed as he practically ripped the top off of his jug of milk.

Without waiting for Deku to say anything else he brings it to his mouth and begins chugging it. Chuckling Deku quickly mimics his actions, the first thing he registers before the actual taste of the milk is cold, pure ice cold.

Which is no surprise considering it'd been in the back of the refrigerator for a little while, but the change in temperature is just intense enough to give him a brief pause that has him lowering the jug for his mouth coughing slightly before he resumes chugging it.

He can't be sure at the moment but he's pretty sure he sees a slight smile on Bakugou's face.

~~~

They continue on like this for a little while simply chugging the milk as if they're men dying of thirst in the desert.

That is until the uncomfortable weight of milk they'd drunk seems to hit them. It hits Deku first and he lowers the jug of milk with a low groan as the milk settles in his stomach like a giant ball of ice sending an ache spreading across his stomach.

The ache reminds Deku of a brain freeze, no doubt a consequence of drinking so quickly.

Bakugou gives a soft snort as he smirks at Deku, just barely forcing back his own grimace as a dull ache streaks across his stomach. The milk settles in his stomach and Bakugou muffles a soft hiccup into his hand when the milk seems to slosh slightly in his stomach.

Bakugou feels a bit full from all the milk, not aching or painful but definitely a noticeable tightness that's wrapped rather snuggly around his abdomen. He glances down at his jug of milk before glancing over at Deku's.

Deku has returned to drinking his and Bakugou quickly does the same in an effort to keep up, there's still plenty of milk left in the jug he can do this he tells himself. He had to drink all of this.

Deku tells himself much of the same, he tries to think of it a lot like his usual training. Just another wall he needs to overcome and he definitely would. The amount of milk left in the jug is of course intimidating but Deku ignores that as he pushes on.

~~~

Both of their drinking had slowed significantly by this point, Deku was full, so, so full to the point that each breath sent a deep dull ache streaking across his stomach as cramps twisted at it practically punching him in the gut.

Panting he lowers his jug of milk to catch his breath as he swallows thickly, the rich taste of milk coats every inch of his mouth. It's not only cold but sticky as well much like melted ice cream practically clinging to his throat with each swallow.

Not only that but he's shaking by this point as well but whether he was trembling from the cold or the strong nausea that'd settle right beside the ache in his gut he doesn't know.

Muffling a loud burp into his hand when his stomach sloshes like a water balloon being shaken, he slowly raises the jug of milk back to his lips, his hands shaking as he does. Shooting a glance over at Bakugou as he takes a sip Deku sees that the amount of milk sitting in Bakugou's jug is the same as his.

Deku needs to keep going from what he can see Bakugou's in the same condition as him, his hands trembling as they hold the jug to his lips, his skin as pale as the milk he was drinking. Even his stomach had started to bloat out beneath his shirt, loud almost wet gurgling noises coming from it as Bakugou continued to drink.

Deku knows Bakugou must be feeling the same as him as well because Bakugou is quiet, no taunting smirks or teasing glances as he puts all his focus into the singular task of drinking all of the milk.

This time when Deku drinks it is almost a struggle, pain streaking across his stomach as it gurgles loudly the milk sloshing almost violently inside of him, and he needs to pause for a moment as another loud burp slithers past his lips followed by a low groan before he brings the jug of milk back to his lips.

His determination and urge to win is still burning brightly as always, and so Deku pushes on.

~~~

Deku like any person his age has done a few stupid things in his life, and there are many decisions he regrets. But at the moment none of them seem to compare to what he's feeling right now.

His stomach is in absolute agony, the organ stretched to the point where just breathing was a struggle his lungs felt as if they couldn't expand all the way. There was a harsh tightness wrapped around his stomach similar to a rubber band around his waist.

He was full, completely, and utterly full, his stomach pushed to the near breaking point by all of the milk he'd forced into it loud tense almost wet gurgling and sloshing noises coming from it as his body struggled to even attempt to digest it all. He is also incredibly nauseous, each breath he takes threatens to make him gag as the sticky milk coating his mouth seems to make his throat cling together with each swallow he takes struggling to keep his stomach contents down.

Deku was still shivering as well, his entire body trembling from the sheer cold sensation of the milk and from the intense nausea he was experiencing.

Deku glances over at Bakugou slightly, a little relieved to see that Bakugou is in about the same condition he is. Bakugou's skin is pale as a sheet, sweat coating his face as he trembles, his stomach is so bloated by this point that it's beginning to peek out from beneath his shirt just like Deku's loud gurgling noises coming from the overtaxed organ.

Bakugou stops drinking for a moment, shakily lowering his jug from his mouth as he screws his eyes closed, swallowing almost frantically when he can taste milk and bile trying to creep up his throat, sour, burning, and still slightly cold.

Deku brings his jug of milk to his lips once again, he doesn't have much left in it but neither does Bakugou at this point so he needs to hurry up and finish this before Bakugou can. Deku pauses for a moment giving a shuddering breath and closing his eyes when his stomach hitches slightly threatening to send up all of its contents.

Deku manages one more large sip, but it is a struggle, and that large sip is the straw that breaks the camel's back. He is still in the middle of drinking, of trying to force down even a little bit more of that milk when his stomach hitches, heaving violently.

He gags a large splash of still cold regurgitated milk comes up almost instantly, tasting sour and vile as some of it sprays back into the jug. Deku's fingers fumble, dropping it as he frantically leans forward towards the ground with a loud wet retch, a thick surge of watery, pale off-white vomit spraying from his mouth like a water hose.

It splatters loudly on the ground as it forms a rather sizable puddle sounding as if someone had spilled a tub of water on it, Bakugou cracks one eye open before quickly closing it, swallowing frantically as he tries to breathe around his own nausea. He does his best to ignore the disgusting sounds Deku is making for fear of setting his own stomach off.

Deku groans, getting the briefest of moments to breathe before a loud, gurgling, burp tears almost violently from his lips, and his bloated stomach heaves again practically convulsing as it sends up another enormous, thick surge of watery vomit. And oh god, does the milk taste horrific coming back up. It'd already been a struggle for Deku to force the stuff down in the first place, but as it comes back up it's sour, absolutely rancid, and thick as if it'd been curdling and rotting in his stomach.

He retches violently the noise gurgling in his throat as one final enormous surge of vomit sprays from his mouth and nose, the constituency of it is a bit thicker, yet still watery almost like paint and the color is almost a murky grey rather than off white. It adds to the puddle at his feet causing it to rapidly grow as it cascades from his mouth and nose for a good solid few seconds giving him no chance to breathe.

"Fucking hell," Bakugou mutters eyeing Deku wearily when he finally sits back coughing and spluttering.

Deku merely groans in response, rubbing his sore stomach with one hand as he blinks the tears from his eyes and sniffles. He won't lie, he feels a lot better now that all the milk is out of him, although he absolutely hates the horrible rancid taste coating his mouth at the moment.

"Aww...it looks...like you win," Deku said softly as he wiped at his mouth and nose with the back of his hand. He can't help but feel slightly disappointed by the fact that he lost.

Bakugou gives a soft, almost strained snort. "You're damn right I did," he said, his tone completely and utterly smug. Not only is he glad he won, he's just glad this is over before he embarrasses himself because he knows there's no way he can force down any more of the milk, especially not after watching Deku puke all over the ground like that.

Deku chuckles, his voice slightly raspy from the strain of throwing up. "I'm gonna go get the hose and some water, I need to clean up and get this awful taste out of my mouth. Need anything," he asked looking over at Bakugou as he carefully got to his feet.

Bakugou shakes his head silently, too busy focused on trying to swallow back the bile and milk now bubbling at the back of his throat. The sharp scent of bile and the rancid scent of regurgitated milk hanging in the air is doing his stomach absolutely no favors especially in his current condition.

Plus he really can't put anything else in his stomach at the moment so drinking water, in an attempt to rid himself of the chalky, sticky taste of the milky coating his mouth is right out.

It is only when Deku goes inside of the house that Bakugou's hand goes to his stomach, the skin is bloated and taut a warm heaviness pressing back against his hand as the milk sloshes sickeningly inside of him. He hiccups, shaking his head slightly as his nausea only rises, refusing to disappear and sticky saliva begins to rapidly pool in his mouth.

Cursing under his breath, Bakugou leans forward opening his mouth as he spits the drool onto the ground and allows it to drip from his mouth, but no matter how much falls to the ground more seems to flood his mouth. A loud burp leaves his mouth, practically echoing in the silence around him.

He feels like shit and just wants the nausea to disappear, he may have won but he is rapidly regretting the decision to do this at all.

"Stupid Deku," he huffed as he spat more drool onto the ground. He grits his teeth, panting as he screws his eyes shut, the nausea leaving him breathless.

He cracks one eye open, glancing down at the ground, and sees Deku's vomit sitting there, slimy and practically congealing before his eyes and he can't fucking take it anymore.

A violent gurgling retch leaves his mouth causing him to lurch forward so much he nearly falls out of his chair as a surge of pale off-white vomit gurgles up his throat, spraying onto the ground as the sour, rancid taste of barely digested milk coats his mouth tasting completely spoiled. Which was a far cry from how it tasted going down.

"F-fuck," he coughs out, his eyes wide and filled with tears. Threads of murky drool hanging from his mouth as he leans over the mess simply blinking for a moment, slightly dazed.

Although as another retch tears itself from his throat bringing another large wave of pale watery vomit with it, his daze is quickly broken.

"Oh," Deku said, sounding slightly stunned as he returned to the backyard to see Bakugou violently emptying his stomach contents onto the ground.

He chuckles as he makes his way over to him and reaches outlaying a gentle hand on Bakugou's back as he retches again rubbing soothing circles on it and cringing slightly at how violent Bakugou's retching sounds. Although he can't help the soft laugh that leaves his mouth.

Bakugou coughs as he manages to glare up at Deku briefly. "Why the fuck are you laughing," he rasped only to lurch forward again with a wet, sick-sounding hiccup as another enormous surge of vomit sprays from his mouth adding to the already large puddle in front of him.

Bakugou honestly doubts that he'll be able to drink milk ever again after this and Deku was laughing at him. Fucking laughing.

"I'm not laughing at you Kacchan, I'm just kind of relieved I wasn't the only one who ended up throwing up," Deku explains quickly.

Bakugou spits onto the ground trying desperately to get rid of the horrific taste coating every inch of his mouth. "You still lost you fucking weirdo," he mumbles under his breath.

Deku nodded another soft laugh leaving his mouth. "Right, I guess you get to choose the place for our next date."

While he did lose, Deku is admittedly happier than he should be, because at least it was fun although a little painful.

"Your damn right I do," Bakugou huffed as he wiped the back of his mouth with his hand.

At that Deku merely smiles, more than a little eager to go inside and watch a movie with Bakugou now that everything was said and done.