Cast in Desire: A Twisted Academy

**Chapter 1: The Induction**

The halls of U.A. Academy were not what they once were. Gone were the echoes of heroic aspirations; now, they reverberated with the clinks of metal, the hum of machinery, and the muffled moans of the willing. This was no longer a school for heroes, but a twisted sanctuary where the next generation learned the dark arts of dominance and submission through the Full Body Plaster Cast Sex Slave program. At the center of it all was Katsuki Bakugou, a man whose fiery spirit had been molded into something far more... primal.

In the dimly lit training chamber, the air was thick with anticipation. The walls were lined with tools of restraint and pleasure, each more bizarre than the last. Bakugou, encased in a full-body plaster cast from neck to toe, stood—or rather, waddled—before a crowd of eager students. His broken bones, a testament to his dedication, were hidden beneath the cast, but his uncasted ass was exposed, vulnerable to the relentless fuck machine that pounded into him with mechanical precision. A spreader bar kept his legs apart, forcing an awkward gait, while a cock milker hummed around his hard, throbbing cock, connected by a tube to a cock gag that silenced him, forcing him to drink his own cum with every shuddering release. His moans—deep, guttural, and desperate—filled the room: *‘Mmmph! Hnnng! Grrrmph!’*

Standing before him was Instructor Aizawa, now a stern mistress of this depraved curriculum, her eyes glinting with wicked amusement. Beside her was Mina Ashido, a student with a sharp tongue and a sharper mind, her pink skin flushed with curiosity and something darker.

'Look at him,' Aizawa purred, her voice dripping with authority. 'Bakugou, the perfect specimen of submission. He’s not just a slave—he’s a masterpiece. And you, Mina, will learn to own one just like him.'

Mina smirked, crossing her arms, her gaze raking over Bakugou’s trembling form. 'Oh, I’m not here to just own, Instructor. I’m here to break and rebuild. Tell me, does he ever get tired of that machine drilling his ass? Or does he beg for more through that gag?'

Aizawa chuckled, a low, dangerous sound. 'He loves it. Don’t you, pet?' She stepped closer to Bakugou, running a gloved finger along the edge of his cast. His muffled moan—*‘Mmmrrph!’*—was answer enough. 'He’s bound by rules, twenty of them, each more twisted than the last. Break one, and the punishments are... exquisite.'

Mina raised an eyebrow, intrigued. 'Lay them out for me. I want to know every filthy detail.'

Aizawa’s lips curled into a smirk as she began to recite the rules and their corresponding punishments, her voice a seductive chant:

1. **Rule: Always moan in rhythm with the fuck machine.** Punishment: Machine speed doubled for 24 hours.

2. **Rule: Never resist the cock milker.** Punishment: Electric shocks to the cock for an hour.

3. **Rule: Drink every drop of cum.** Punishment: Tube disconnected, cum smeared on face for public humiliation.

4. **Rule: Waddle with grace using the spreader bar.** Punishment: Bar tightened, forced to crawl instead.

5. **Rule: Never look away from a master’s gaze.** Punishment: Blindfolded for a day, sensory deprivation.

6. **Rule: Accept all pain as pleasure.** Punishment: Additional weights hung from broken limbs.

7. **Rule: Never speak, only moan.** Punishment: Gag replaced with a larger, choking device.

8. **Rule: Keep ass presented for the machine.** Punishment: Machine replaced with a larger, more brutal toy.

9. **Rule: Never flinch during inspections.** Punishment: Hot wax dripped on uncasted areas.

10. **Rule: Maintain arousal at all times.** Punishment: Ice applied to cock until begging resumes.

11. **Rule: Never hide emotions.** Punishment: Forced to watch others pleasure themselves without relief.

12. **Rule: Accept all new tools without complaint.** Punishment: Tool used for twice the intended duration.

13. **Rule: Never request rest.** Punishment: Denied sleep for 48 hours.

14. **Rule: Always thank masters for punishment.** Punishment: Silent treatment, ignored for a day.

15. **Rule: Keep body clean despite cum and sweat.** Punishment: Hosed down with freezing water.

16. **Rule: Never question a command.** Punishment: Public flogging on uncasted ass.

17. **Rule: Endure all public displays.** Punishment: Paraded naked outside the academy.

18. **Rule: Never cum without permission.** Punishment: Cock ring tightened for a week.

19. **Rule: Always appear eager.** Punishment: Forced to perform humiliating dances.

20. **Rule: Love every moment of slavery.** Punishment: Isolation in a sensory deprivation tank for 72 hours.

Mina listened, her breath hitching slightly, her eyes locked on Bakugou as the fuck machine thrust harder, his moans growing louder—*‘Hnnng! Mmmph! Grrrph!’*—his body sweating, his cock dripping under the milker’s relentless grip. 'Damn,' she muttered, her voice husky. 'He’s a mess, but a fucking hot one. I’m getting wet just watching him squirm.'

Aizawa turned to her, a predatory grin on her face. 'Then why don’t you get closer, Mina? Feel the heat of his desperation. Touch him. Make him pant for you.'

Mina didn’t hesitate. She strode forward, her boots clicking on the floor, and leaned in close to Bakugou’s face, her breath hot against his gagged mouth. 'You’re a horny little toy, aren’t you? I bet you’re dying to cum again, to feel that pussy of a machine fuck you raw.' Her hand trailed down to his uncasted ass, giving it a sharp slap. His moan—*‘Mmmrrph!’*—was music to her ears.

She glanced back at Aizawa, her eyes blazing with lust. 'I want to see him break. I want to see him hard and dripping, panting for more.'

Aizawa nodded, stepping back. 'Then take the controls. Turn up the machine. Make him yours.'

Mina’s fingers hovered over the dial, her grin wicked as she cranked it higher. The machine roared, slamming into Bakugou’s ass with brutal force, his body jerking, his cock throbbing under the milker, his moans a desperate symphony—*‘Hnnng! Grrrph! Mmmph!’*—as the room filled with the scent of sweat and raw, unbridled desire. She leaned in, whispering, 'Let’s see how long you last before you’re begging through that gag, you filthy, beautiful mess.'

And with that, the chamber seemed to close in, the heat rising, the tension building to an explosive crescendo that promised nothing short of pure, carnal chaos.