A young adult woman visits her local female services and fertility clinic to undergo her scheduled mental adjustment procedure, which she is looking forward to, as part of the current module of her female training course. She is excited for the procedure, having heard from her friends and peers that it's very pleasurable, and that the experience of being dumb and sex-focussed for the rest of the six-month module is especially pleasant. At the clinic she is greeted by a receptionist who takes down her personal details and directs her to the neural services team, who welcome her warmly and begin setting her up for the procedure while explaining some basics about what is to follow. The team, consisting of one physician and two assistants, helps her strip off her clothes and takes stock of the shape of her body, gently feeling her breasts and hips to judge size, while the physician asks her questions about her and current sexual activity. They then administer the reshaping serum and position her in the complex but sleek and secure stimulation device, straddling the cradle face down with her feet, knees, elbows and hands secured in place, her pussy exposed to the devices's thick probe and her breasts cradled in the cups of the device. They secure the neural helmet over her head and the physician begins taking a baseline reading while one of the assistants gently teases her pussy to establish a stimulation baseline. The physician explains the phases of the procedure, in which they will induce several massive orgasms which will trigger the reshaping serum to make her dumber and hornier, monitoring her progress between each orgasm and having her respond to stimuli to test her brain function. As the machine slowly, then vigorously, brings her to successive orgasms the story describes the internal feeling of her IQ dropping with each orgasm and shows her responses to the tests as each massive orgasm makes her dumber and dumber and the team monitors the changes to her brain on their equipment. She loves the process, shamefully aroused at the idea of being dumb horny, fertile and submissive, and eagerly allows the team to fuck her intelligence away until the tests confirm her IQ has dropped to 81. Afterwards, the physician carefully explains the implications and limitations of her new intelligence level and encourages her to enjoy the module and have plenty of sex. Delighted, she embraces the change. All characters are adults.

Chapter 5: Mind-Melting Climax

The soft hum of the probe re-engaging was the only warning. Then it was pushing into her again, that thick, unyielding intrusion, and the empty ache vanished into a gasp of overwhelmed fullness.

“Oh, fuck,” Ellie breathed, the words slurry and effortless.

This time, the rhythm wasn’t gentle. It established a deep, pounding tempo right from the start, each stroke a firm, slick claim on her insides. The clitoral stimulator buzzed back to life, a frantic counterpoint to the deliberate thrusts. The nipple pads descended, their suckling more intense now, almost painful in their need.

“Neural pathways are disengaging cleanly,” Dr. Long noted, her eyes fixed on the main monitor. “Language centers are next. Watch for semantic drift.”

Ellie couldn’t have understood the terms if she tried. Her world was sensation. Each inward drive of the probe mashed a spot inside her that sent sparks behind her eyelids. The wet, slapping sound of it filled the pod. Her hips rocked uselessly against the cradle’s restraints, her body trying to meet a force it couldn’t possibly match.

“Yeah, that’s it, sweetie,” Susan murmured, her hand resting on Ellie’s trembling belly. “Just take it. It’s making you so pretty and simple.”

“Brain’s lighting up like a pleasure center pinball machine,” Anya grinned, watching her own screen. “Higher reasoning is… yeah, it’s just blinking out. Look at that. Gone.”

Something was slipping. Ellie felt it. A thought tried to form—what’s happening to me—but it shattered as the probe hammered into her cervix, a bright shock of almost-pain that melted into toe-curling heat. The words in her head were losing their edges, their meanings. They were just sounds now, shapes for the moans and pleas building in her throat.

“Dr. Long?” Susan asked, her voice still calm.

“Proceed. Increase stimulus by fifteen percent.”

The machine responded. The thrusts came faster, harder. The buzzing on her clit became a vicious, unbroken vibration. Ellie cried out, a raw, wordless sound. Her back arched violently, her large breasts jutting upward, the nipple sucklers pulling relentlessly. She was a bundle of naked nerve endings, every signal screaming toward one destination.

“Fuck… fuck me…” she babbled, the profanity feeling like the only true thing left. “More… need… more…”

“She’s asking for it,” Anya chuckled. “So good. You just want to be a dumb little cocksleeve, don’t you, Ellie? Just a thing for fucking.”

The words landed in the fog, hot and shameful and right. A thing for fucking. Yes. That was it. That was all. Her mind groped for a rebuttal, for the pride she’d once felt in her essays, her quick wit, but it was like trying to catch water. It was all just… gone. Replaced by this hungry, clenching hole and the roaring need to be filled.

Her moans dissolved into a continuous, low wail. Coherence left her. Sentences were impossible.

“Good… uh… uh… g-good…” was all she could manage, a broken record synced to the piston of the machine.

Dr. Long studied the linguistic monitor. “Significant degradation. Syntax is collapsing. Vocabulary reverting to primal, pleasure-based sounds. She’s losing the capacity for abstract thought.”

The probe pistoned into her, a brutal, perfect rhythm. Her wetness was everywhere, slicking her thighs, dripping onto the cradle with a steady plip plip plip. The air smelled of sex and her own desperate sweat. Her hands clutched at nothing, fingers curling and uncurling.

A second orgasm was building, a tsunami rising from the ruins of her mind. It wasn’t a peak she climbed; it was a chasm she was falling into. There was no anticipation, only an inevitable, crashing reality.

“Here it comes,” Susan said softly, her hand moving to stroke Ellie’s hair. “Let it take you all the way down, honey.”

It hit. Her body locked, every muscle corded tight. A scream ripped from her throat, ragged and deafening. Her cunt convulsed wildly around the invading shaft, a frantic, milking clutch. The pleasure wasn’t bright this time; it was dark, deep, and totalizing, a black hole consuming the last scattered bits of her. The helmet pulsed again, a deep, resonating thrum that vibrated her very bones.

When it ended, she was empty. Not just physically, but mentally. Hollowed out.

The machine slowed, but did not stop. It maintained a gentle, rocking motion inside her, a reminder.

Ellie lay spent, her breath coming in shallow hitches. She blinked slowly at the ceiling, her vision slightly blurred. She felt… quiet. Simple. The frantic need was still there, a low thrum between her legs, but it was manageable now. It was just… her state. Her purpose.

“Ellie?” Dr. Long’s voice sounded distant.

Ellie turned her head. The doctor’s face was a pleasant blur. Pretty.

“How do you feel?”

Feel? Ellie’s tongue felt thick. “Good,” she mumbled. It was the only word that fit. “Feels good.”

“Can you tell me your full name?”

Name. That was a thing she had. She grasped for it. It was… fuzzy. “Ell… Ellie.” She smiled, pleased with herself.

“Do you know where you are?”

Ellie’s eyes drifted around the chrome pod. It was familiar. Safe. A place for… feeling good. “The… the place. For… for girls like me.” The answer swam up from some new, instinctual place. It felt correct.

Anya came into view, smiling. “What’s two plus two, Ellie?”

Numbers. They were silly shapes. They danced away. Ellie giggled, a wet, breathy sound. “Dunno. Lots?” She didn’t care. It didn’t matter. Nothing mattered except the nice, full feeling down there and the soft cloud where her thoughts used to be.

“Perfect,” Dr. Long said, a note of finality in her voice. She tapped the screen. “Cognitive function is now operating at approximately forty percent of baseline. Inhibitions are negligible. Primary neural realignment for the Body Familiarity module is complete.” She looked at Ellie, her clinical gaze softening just a fraction. “The intensive phase is over, Ellie. The machine will continue gentle stimulation for the next hour to cement the pathways. Then you’ll be transferred to your new living module. Do you understand?”

Ellie heard the words. They were sounds. Some of them stuck. Gentle stimulation. New module. Good words. She nodded, her head feeling heavy and good on the support. “Uh-huh.”

“You did so well,” Susan said, patting her shoulder. “Just rest now. Let the machine take care of you. It’s all it’s for now.”

Ellie let her eyes close. The probe inside her moved with a slow, possessive rhythm, a lazy possession of her body.