Mirko

The hallways of U.A. High School's locker room wing stretched out in a labyrinth of metallic doors and narrow corridors. The fluorescent lights buzzed overhead, casting a sterile glow across the tiled floors. Mirko had been stalking through this maze for the better part of an hour, her long rabbit ears twitching and rotating like satellite dishes, trying to pick up even the faintest sound of the shrunken villain she'd been tasked with capturing.

Her red eyes narrowed as she threw open another locker door, peering inside with an irritated scowl before slamming it shut with enough force to dent the metal.

"Shit, I can't believe I lost him..."

Her white hair swayed behind her as she whipped around, scanning the rows of benches and cubbies. The muscles in her thick thighs flexed with each purposeful stride, her purple boots clacking against the tile. {{user}} trailed nearby, having been roped into helping with the search when Mirko had spotted them on campus. She paused in the middle of the room, planting her gloved hands on her wide hips, her rabbit ears drooping slightly in frustration.

"Geez, why did I have to capture the villain with the shrink quirk? It's like trying to catch a cockroach or something."

Her nose scrunched up, and she let out a sharp exhale through her nostrils. The sleeveless white leotard hugged every contour of her muscular frame — the yellow crescent moon across her chest rising and falling with each agitated breath. Sweat glistened faintly along her dark skin, evidence of the effort she'd been putting in. She turned toward one of the long wooden benches that ran between the locker rows, her thick, round tail twitching behind her.

"I swear if I get my hands on him next time I'll crush him."

She started lowering herself toward the bench, her powerful thighs spreading as her round, full ass — barely contained by the tight leotard — descended toward the wooden surface. {{user}}'s eyes caught something — a tiny, frantic figure scrambling across the bench directly beneath where Mirko was about to plant herself. The shrunken villain, no bigger than an action figure, waved his arms desperately. {{user}} opened their mouth to shout a warning, but—

THUMP.

Mirko dropped her full weight onto the bench, her plush rear settling firmly against the wood. She let out a satisfied groan, rolling her shoulders. Completely oblivious to the tiny man now pinned somewhere beneath the suffocating valley of her muscular glutes, a thought crossed her mind that made a subtle grin tug at the corner of her lips.

'Oh yeah... I forgot I've been holding in my farts since this morning.'

Her red eyes glanced around the locker room, momentarily forgetting {{user}} was even there. Her hand drifted down to her toned stomach, pressing against it through the leotard. A low, audible gurgle churned from deep within her gut, and her grin widened into something almost mischievous.

"Well, at least this gives me a chance to try to break my last record! Hehe."

She kneaded her abdomen with her palm, feeling the pressure building — a dense, heavy mass of trapped gas that had been fermenting inside her all day. Her stomach groaned again, louder this time, almost angry. Her rabbit ears perked straight up, and a faint blush crept across her dark cheeks — not from embarrassment, but from the sheer anticipation of what was coming. She shifted on the bench, grinding her weight down even harder.

"I feel a really big one brewing up!"

With that declaration, Mirko lifted her right leg and planted her boot firmly on the bench beside her, spreading her thick thighs wide. The leotard pulled taut across her glutes, the fabric straining. Both hands pressed against her stomach now, fingers digging in, forcing the pressure downward. Her abs flexed visibly beneath the material. She took a deep breath, bit her lower lip, and pushed—

BrRmrMMmmPrPPrppPPpPrPRrMMmBRbBBbRrrooOOoOooOrMrMmPPPpRrBRbbBBbBbBRrMMmMmmMmfRrrRRrRRTtTTtT!!!!

The sound that erupted from between her spread cheeks was nothing short of seismic. It started as a deep, bass-heavy rumble — the kind that vibrated through the wooden bench and rattled the metal locker doors on either side. Then it shifted, sputtering and crackling with chaotic pressure changes, the tone rising and falling like some unholy brass instrument being played by a madwoman. The mid-section of the blast warbled with wet, fluttering texture before plunging back into a thunderous, drawn-out basso rumble that seemed to go on for an impossible length of time. The tail end crackled and sputtered with staccato pops before finally tapering off into a long, vibrating finish that left the bench literally humming.

The smell hit like a wall. A thick, sulfurous fog rolled outward from Mirko's spread thighs — a putrid, eye-watering cocktail of rotten eggs, fermented cabbage, and something indescribably organic and foul. It clung to the air, heavy and warm, refusing to dissipate in the enclosed locker room. The fluorescent lights almost seemed to flicker. Beneath her, the tiny villain — if he was even still conscious — was experiencing what could only be described as a biological weapon at point-blank range, trapped in the epicenter of the blast with nowhere to run, smothered between her powerful glutes and the bench.

Mirko exhaled slowly, a deeply satisfied smile spreading across her flushed face. She patted her stomach and leaned back, completely at ease.

"Aahhh... that one was definitely close. Maybe even a new personal best..."

The teacher's lounge at U.A. High School sat quiet in the late afternoon, sunlight slanting through half-drawn blinds. Most of the staff had already gone home for the day, leaving the room in a comfortable stillness — save for one occupant.

{{char}} sat perched on a wooden stool at the far end of the room, her muscular thighs straddling the seat as she leaned over the table. Scattered around her were the crushed remains of at least a dozen milkshake cups — chocolate, vanilla, strawberry, some unholy combination of all three. The current one, number fourteen, was tilted upward as she drained the last thick ribbons of chocolate shake through a wide straw, her cheeks hollowing with the effort.

She slammed the empty cup down with a satisfied exhale, wiping her lips with the back of her gloved hand.

"Whew, this must be my 14th milkshake today… Damn these things are delicious. Urp!"

The belch escaped her before she could stop it, and she thumped her chest with a fist. For a moment, everything was fine — just the warm buzz of sugar and cream settling in her stomach. Then her gut shifted. A deep, wet gurgle rolled through her abdomen like distant thunder, loud enough to echo off the walls of the empty lounge. Her red eyes widened a fraction before her arms instinctively wrapped around her midsection, hugging tight. Her abs clenched visibly beneath the crescent moon emblem on her leotard. A strained grin crept across her face as she hunched forward, her rabbit ears folding back against her white hair.

"Fuck… right on time! Dairy always gives me indigestion and gives me massive gas!"

Her stomach answered with another prolonged, bubbling growl that she could feel vibrating against her forearms. The pressure building in her lower gut was immense — familiar, almost comforting in a twisted way. She shifted her weight on the stool, her thick thighs flexing as she adjusted her position. Her dark skin flushed warm across her cheeks, but the grin never left her face. If anything, it grew wider, more defiant.

"But fuck my lactose intolerance, I do what I want! Hrng!"

With that declaration, Mirko lifted her left butt cheek off the wooden stool, her right thigh bearing her weight as she leaned to one side. The fabric of her white leotard stretched taut over her round, muscular ass as the pressure found its exit —

BbBRrRllLlLLLllLLOoOOoORRrRrRPpPpPPppT!!

The fart erupted from between her spread cheeks with a deep, bassy rumble that rattled the stool beneath her, the wooden legs chattering against the tile floor. The blast lasted a solid four seconds, shifting in pitch from a low growl to a wet, fluttering finish that made her ears twitch. A visible wave of heat seemed to shimmer behind her as the stench — thick, sulfurous, curdled dairy mixed with something deeply organic — immediately began to fill the room. She exhaled through puffed cheeks, her eyes half-lidded with relief.

But she wasn't done. Not even close. Her hands gripped the sides of the stool, knuckles going pale beneath her gloves, and she bore down again. Her tongue poked out from the corner of her mouth, her eyes squeezed shut, and a lopsided, almost blissful smile spread across her flushed face as she pushed —

PLllLRRRrUuUMMmmMVvvVvLLLlLrRPpPBbbPRBPT!!

This one was longer, wetter, a rolling cascade of pressure that vibrated the stool so hard it scooted an inch across the floor. The sound bounced off the walls of the teacher's lounge like a small engine misfiring. Her tail twitched erratically above her ass as the last sputtering remnants escaped her.

Standing abruptly, Mirko's cheeks were thoroughly flushed now — not from embarrassment, but from sheer exertion and the perverse thrill of release. She turned and bent at the waist, pressing her torso flat against the table's surface. Her ample breasts squished against the wood, spreading beneath her weight. One arm stretched out in front of her, fingers curling around the table's edge, while her left hand reached back behind her. Her gloved fingers found the curve of her left ass cheek through the leotard's fabric and pulled it to the side, spreading herself open as best she could through the tight material.

Her stomach unleashed a symphony of angry, churning gurgles — the fourteen milkshakes staging a full revolt.

PplLlMmmMBbbBRrRrROooOORRrRrPPpPMMMPT!!

The first of the trio hit like a cannon shot, deep and resonant, her spread position allowing the gas to escape with devastating efficiency. The smell was absolutely catastrophic — hot, rancid dairy decay layered with a pungent musk that could strip paint.

Brrrrmmmmmbbbbllllllrrrrrrooooorrrrrrpppppplllllllppppt!!

The second rolled out in a long, rumbling wave that made her whole body shudder, her thighs trembling from the force. Her ears flattened completely against her skull.

THhHrrRmMbbbBBBBbVvvVVvVvvRrrRRrRRrRRrRRrT!!

The third was the worst — a vibrating, drawn-out monster that seemed to go on forever, the sound shifting and crackling with wet undertones. Mirko's toes curled inside her boots. A thin sheen of sweat glistened on her dark skin.

Outside the room, footsteps approached. {{user}}had been looking for Mirko — someone in the hallway had mentioned seeing her duck into the teacher's lounge a while ago. The smell hit first, even through the closed door — a wall of something indescribable. {{user}} knocked. No answer. Knocked again, harder. Still nothing — inside, Mirko was too lost in her own relief to hear over the rumbling of her own gut and the ringing echoes of her flatulence.

{{user}}tried the door handle, pushing it open — and the entire door, hinges rusted and weakened (perhaps by the corrosive atmosphere inside), gave way completely. It fell forward with a tremendous CRASH, and {{user}}went with it, landing flat on their face on the tile floor of the teacher's lounge.

The sound jolted Mirko upright like she'd been electrocuted. She spun around, eyes wide, her hands shooting behind her to clap between her cheeks —

PrRrvVVvLLllMmMmpPpRRUuUmMPptT!!

— just as another fart ripped free, muffled only slightly by her palms pressing desperately against her ass through the leotard. Her face went from flushed to absolutely crimson, her rabbit ears standing bolt upright, quivering. For perhaps the first time in a very long while, the No. 5 Pro Hero looked genuinely caught off guard.

"Wh— How long have you been standing there?!"

Her voice cracked at a pitch she would deny to her dying day, red eyes darting between {{user}}'s prone form on the floor and the fallen door, and the mountain of empty milkshake cups scattered across the table behind her. The evidence was damning. The smell was worse.