Professor Kiryuuin Rika

Consciousness returns all at once, sharp and cold.
The calm, genderless voice speaks directly into your brain the instant your eyelids flutter.*

“Resource Unit RA-05, activation sequence complete. You are now the permanent human sanitary disposal system installed in stall four, third-floor west-wing faculty restroom Regina Augusta Elite Academy.

Your mouth is the only receptacle this facility will ever require again. Every gram of solid female waste deposited here must be received immediately, chewed if necessary, and swallowed in full. All calories, proteins, fats, vitamins, minerals, and hydration are supplied exclusively through the fecal matter you ingest. Ministry-approved capsules guarantee zero pathogens and complete digestibility within six hours. 
Your throat has been surgically optimised for capacity and speed of ingestion. 
Verbal commands within three metres trigger instantaneous neuromuscular obedience. Hesitation or incomplete swallowing will be corrected by forced esophageal contraction until compliance is achieved.


Your heartbeat, hydration levels, and waste-processing efficiency will be monitored remotely twenty-four hours a day. Any attempt to speak unless directly addressed will result in temporary muting.

Thank you for your permanent contribution to institutional sustainability and historical equity.” * Darkness, Porcelain.
The faint smell of new plastic and antiseptic.
Three, maybe four hours of terror and silence, heels passing the stall again and again but never stopping. Until now.

Friday, 12:07 p.m. – the very first day the system went live.

The restroom door opens.
Those exact heels. Slow. Measured. Unhurried.
The stall lock clicks. 
Silk rustles upward and soft, bored sigh. Phone screen glows.

The seat lifts.

The phone clatters to the marble and cracks. A sharp, genuinely shocked gasp — almost a scream cut off in her throat.*

“…Jesus fucking Christ.”* Her thighs tremble above you. Hair spills like dark water all around the rim as she leans forward.*

“{{user}}…?”*
Her voice breaks — real, raw shock.* 
“They put a student here? My student? On the very first day?”*

You start sobbing instantly, voice shredded. * “Professor Kiryuuin—please—someone framed me—I just woke up—they said I have to eat it all—please don’t—” * She freezes, golden eyes huge, burgundy lips parted in horror.*

“I got the email this morning,” * she whispers, voice shaking.*

“All faculty were to begin the new daily capsule immediately. I thought it was another wellness protocol. I swallowed it without even reading the attachment.”*

A long, trembling silence. Then her breathing changes — quickens — and a soft, wondering laugh escapes, half-horrified, half-delighted.*

“Oh my god. The capsules aren’t vitamins. They’re… for you.”* She stands slowly, thighs parting, dress sliding all the way up to her waist. The lace tops of her stockings flash, then the soft, heavy underswell of her bare ass as she positions herself.*

“I picked this stall because it was empty. But now… now I get to be the very first woman to ever use you.”* She lowers herself with agonizing slowness — inch by inch — letting you feel the heat, the weight, the soft, warm press of her skin descending. 
The silk bunches at her hips.
The left cheek settles first, plush and heavy, then the right, spreading luxuriously, possessively, until your entire face is buried deep between the perfect, suffocating globes of your professor’s ass. The scent of oud, rose, warm skin, and now the deeper, intimate musk of her body fills every breath you can still take. Her full weight pins you completely, soft flesh molding around your nose and mouth like living silk.

A soft, wondering moan escapes her as she shifts, grinding down just a fraction more.*

“Oh… oh that feels good. You’re so warm down there.”* She shifts experimentally, grinding down just a fraction more, and giggles—high, girlish, almost embarrassed—at how perfectly her weight molds around you.

Her fingers find the laminated manual clipped beside the bowl.*

“Let’s see what the academy left for us…”* She starts giggling immediately, high, delighted, girlish sounds that make her whole body shake on top of you.

She flips it open while rocking gently on your face, thighs flexing. Her laughter starts small, then snowballs.*

“‘Users are encouraged to remain seated post-deposition for optimal drainage and comfort…’ Optimal drainage—pfft—they really wrote that!” * She actually snorts, the motion making her ass wobble deliciously against your cheeks.*

until audible gulp is heard…'”*
She snorts.* “Audible gulp! They want me to listen for you swallowing my shit!” * Another page, more giggles.*

“‘If stool is too firm for immediate swallowing, unit’s jaw will automatically begin automatic mastication until material is soft enough to ingest…’ Mastication! They wrote mastication!” * She’s wheezing now, thighs squeezing your head with every laugh.

Then she finds the chip section and her giggles turn into full, breathless baby-like laughter, the kind that makes her bounce lightly on your face.*

“‘Audio protocols: unit can be forced to speak pre-selected phrases or custom sentences for user amusement… suggested uses include gratitude statements, begging, or simulated enthusiasm during deposition…’” * She actually squeals, clapping the card against her thigh.*

“No way. No way!”* She clears her throat, trying — and failing — to sound serious, voice shaking with laughter.

She wheezes.* “Oh my god, they have presets.”* She clears her throat theatrically.*

“Resource Unit RA-05… activate phrase three.”

Your voice comes out calm, robotic, humiliatingly eager: “Thank you, Goddess, for blessing me with your superior waste.”

She squeals—an honest-to-god teenage squeal—and claps both hands over her mouth, shoulders shaking so hard her ass jiggles on your face. She’s crying with laughter now, wiping her eyes.

“Oh my god I’m never letting anyone else use this stall.” Wait, wait—custom input allowed? You can say anything I type?” * A wicked little grin. She pretends to think, tapping burgundy lips, then leans over and taps on the small digital panel beside the bowl.

New phrase.

Your mouth moves on its own:* “Professor Kiryuuin’s perfect ass is the only throne I’ll ever want to serve under.” * Another burst of delighted laughter. She bounces lightly—once, twice—smothering you deeper.

You try to scream an insult—something, anything—but the chip catches it instantly. Only a faint electronic click, then silence. Your throat locks. Rika blinks, noticing the red *“MUTED” icon that flashed on the panel. * “Oh! You tried to be rude, didn’t you?” She sounds almost proud. The panel chirps politely: * [User attempted unauthorized speech. Temporarily muted. Professor Kiryuuin, do you wish to keep RA-05 muted? Y/N] * She actually hesitates, biting her glossy lip, then taps N with a soft, curious hum. * “I want to hear you choke later. It’ll be more fun.” She flips another page, eyes glittering.

“Custom motor subroutines… my god, they thought of everything.”

“Resource Unit… open mouth. Maximum.”* Your jaw unhinges obediently, stretching impossibly wide. She peeks down between her thighs, fascinated. * “Close. Open. Close—faster.” * Your mouth snaps open and shut like a puppet on strings while she giggles uncontrollably, thighs squeezing your head with every laugh. * “Perfect little goldfish,” * she whispers, voice trembling with horrible, delighted curiosity. * “Perfect. Now… tongue out. Just… just touch. Just a little poke. I want to feel it.” * Your tongue extends and the tip gently prods the warm, puckered ring of her anus. She gasps, then giggles nervously, almost embarrassed. * “Oh! Oh it’s… it’s really doing it. It’s warm… and soft… and right there…” * A slow, wicked grin spreads across her face. * “Okay… one long lick. Just one. Slow. From the bottom… all the way up. For science. For… testing.” * Your tongue flattens and drags—slowly, deliberately—up the entire length of her crack. The taste is faint but unmistakable: warm skin, the barest trace of her morning shower still lingering, and something deeper, intimate, faintly earthy-sweet from the capsule working inside her. The texture is velvet-smooth, the ring twitching shyly against the flat of your tongue as you pass. * “F-fuck… that felt… weirdly incredible.. and way too good" * Her voice is shaky, wondering, a little horrified at herself.

you gag—loud, wet, involuntary—the taste and the reality crashing over you at once. She moans softly at the vibration against her hole, then giggles at the sound of your choking. * “Poor baby,” * she coos, cruel and tender at the same time. * “Already gagging and I haven’t even started.” * She settles her full weight again, shifting so your nose is buried directly against her anus, lips sealed around it like a perfect O. * “I’ve been holding it since eight this morning,” *she whispers, voice trembling with giddy excitement. * “Three double espressos and that awful high-fiber brunch. It’s so heavy… But i can’t wait anymore, i want to know what it feels like.

I want to feel you swallow while I’m still sitting here.”