Cover of The Tuition of Flesh

The Tuition of Flesh

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In a world where there is no currency. No paper or coin currency anyways. In this fantasy world, you pay with sex. It’s normal. No one is allowed to “pay” for anything unless you are 18 years old. Everything has a cost and that cost is generally paid with your body somehow. A girl had just turned 18 and was looking forward to moving out into her own place when she started college a couple towns over. Never really thought about how she was going to pay for it. In this world, working at your job gave your food, and sex paid for everything else. But what she doesn’t know is that when you turn 18, in order to go to college. You must train your body for the “real world”. Your body must train itself to take multiple cocks in all of her holes at once, learn how to get fucked for hours, give a blow job while orgasming, masturbate, etc. her 18 year old tight virgin pussy doesn’t know what fun she has in store….

Chapter 2: Double Penetration Lesson

The cold of the metal table bit into her knees. Lyra’s arms trembled, threatening to buckle. The room’s antiseptic smell was now layered with something saltier, more human. Her own sweat. The sharp, clean scent of the lubricant Valeria had smoothed over her, and now, the faint, musky promise of Torben’s skin so close behind her.

“Breathe, Lyra,” Valeria murmured, her hand a warm, steadying pressure on the small of Lyra’s back. “Just like we practiced. In through the nose.”

Lyra sucked in a ragged breath. The air tasted of static and fear.

Master Kaelen stood to the side, a monolith in his white instructor’s coat. His amber eyes were fixed on her, clinical and assessing. “The body is a vessel,” he said, his voice a low rumble that vibrated in the hollow space of the room. “Its capacity is defined not by its limits, but by its flexibility. You will learn to contain multiplicity. To hold competing sensations without breaking. This is your foundation.”

Torben shifted behind her. Lyra flinched at the brush of his thighs against hers. He leaned forward, his breath warm on her shoulder blade. “Hey,” he said softly, a playful note cutting through the tension. “We’re just following the syllabus. Promise I’m not nearly as scary as Professor Halborn’s econ midterms.”

A startled, wet laugh hiccupped out of her. It was absurd. All of it.

“Ready?” Valeria asked, her fingers circling the base of the smooth, cool plug. Lyra gave a tiny, jerky nod, her honey-blonde hair falling across her flushed face.

“On my mark,” Kaelen instructed. “Slow. Controlled. Synchronized entry. Lyra, you will exhale. You will not tense. Tension is the enemy of reception.”

Lyra’s mind emptied. There was only the thrum of the lights, the weight of their expectations, and the aching, vulnerable openness of her own body.

“Now.”

Torben pressed forward. The broad head of him nudged against her, and her body, treacherously, was already slick and yielding there. He slid into her warmth in one slow, inexorable inch, filling the familiar space with a startling, stretching fullness. She gasped, her fingers curling against the vinyl padding.

In the same measured second, Valeria applied pressure. The intrusion here was different—a sharp, unfamiliar burn, a protest of muscle and nerve. Lyra cried out, a short, sharp sound that echoed off the tiles.

“Breathe through it, kid,” Valeria coaxed, her voice hypnotic. “Let the burn become warmth. It’s just a new shape. Your body can learn it.”

Master Kaelen’s hand came to rest on the back of her neck, not forcing, just anchoring. “Good. You are containing it. Feel both. Acknowledge both. This is the duality of your profession.”

Lyra panted, tears pricking her eyes. She was impossibly, overwhelmingly full. Stuffed. Two distinct presences occupied her, one a throbbing stretch, the other a deep, insistent ache. She felt split apart, yet somehow more solid than she ever had.

For a long moment, they simply held there, letting her adjust. The initial shock began to subside, metabolizing into a strange, buzzing awareness. The pain in her rear softened, dulled by the lubricant and the relentless, gentle pressure, blending into a background hum against the more pronounced, rhythmic pulse of Torben inside her front.

“See?” Torben said, his voice a little strained with his own control. “You’re taking it. You’re doing the thing.”

Valeria began to move the plug, not removing it, but rotating it slowly. A shocking new wave of sensation rocketed through Lyra, and she moaned, the sound startled out of her.

“There we go,” Valeria smiled, encouraged. “It’s not all one note. Different textures, different pressures. You’re learning the map of your own nerves.”

“Begin the rhythm,” Kaelen commanded.

Torben withdrew, almost all the way, and Lyra whimpered at the sudden emptiness. But he pushed back in, deeper this time, as Valeria mirrored the motion with the plug. Out. A devastating, synchronized tide. The sensations crashed into each other, amplified, feeding a feedback loop that made Lyra’s vision swim. The clean, clinical room dissolved into a blur of white and sensation.

She was a conduit. A vessel. The words rattled in her skull. Her nails dug into the padding. Each of Torben’s thrusts drove the plug deeper, and each movement of the plug made her clench around Torben, which made him groan and his rhythm falter for a blessed second before becoming more intent.

“Focus on the exchange,” Kaelen said, his hand still a steady weight. “This is not an invasion. It is a transaction. You give accommodation. You receive proof of your own capability. This is the core of all commerce.”

“It’s… a lot,” Lyra managed to blurt out, her voice choked.

“It’s supposed to be,” Valeria laughed, a rich, genuine sound. “The first time I did this, I yelled so loud they heard me in the lobby. But look at me now.” She gave the plug a deliberate twist, and Lyra arched, a strangled cry on her lips. “I can take two of the advanced weighted models and recite the academy charter backwards. It gets easier. It even gets fun.”

The pace increased. The sounds in the room grew wetter, sharper. Lyra’s own breathy cries, Torben’s grunts of effort, the soft, slick noise of movement. Her trembling hadn’t stopped, but its nature was changing. It was less about fear now, and more about the sheer voltage coursing through her, searching for an outlet.

A new, unexpected heat began to coil low in her belly, beneath the fullness and the burn. It was faint, confused, tangled up in everything else, but it was there. A spark of something that wasn’t pain.

Torben felt the subtle, fluttering change in her muscles. “Hey,” he breathed, his playful smirk evident in his tone even if she couldn’t see it. “There she is.”

The observation unlocked something. Shame tried to rise, but Valeria’s encouraging hum and Kaelen’s factual, non-judgmental presence smothered it. This was the lesson. This was the point.

Her body, ignorant of her mind’s turmoil, began to move. A tiny, hesitant push back against Torben’s thrust. A slight relaxation to welcome the plug’s rotation.

Master Kaelen nodded, a flicker of approval in his hawk-like gaze. “Acceptance. Good. Now, we build endurance. Valeria, switch to the vibrating setting. Low frequency.”

Valeria clicked a small remote. A deep, insistent buzz emanated from inside Lyra, vibrating through her very core. The coiled heat in her belly snapped taut.

Lyra’s world dissolved into pure sensation. The smooth, hard glide in front. The relentless, electric hum behind. They met in the middle, a crescendo of pressure that wiped her mind clean of every thought except one: she was not breaking. She was containing. She was, against all odds, accommodating.

She heard herself making sounds she’d never made before—low, guttural moans that seemed to come from a stranger. Tears leaked from her squeezed-shut eyes, tracking through the sweat on her temples. Torben’s thrusts became less measured, more urgent. His hands gripped her hips, holding her steady as he drove into her.

“That’s it,” Valeria encouraged, her own breath quickening. “Ride it out. Let it happen. This is you succeeding.”

The peak, when it came, wasn’t a sharp climax, but a seismic, rolling wave of release that seemed to originate from the point where the two sensations collided. It tore through her, a convulsive, overwhelming unlocking of every muscle. She screamed, a raw, unfiltered sound that bounced off the mirror.

Torben followed with a choked curse, slamming into her one last, final time as he spent himself.

For a long minute, the only sounds were their ragged breathing and the persistent, low hum of the plug. Slowly, carefully, Valeria withdrew it. Torben eased out of her. Lyra collapsed forward onto the cold table, her cheek pressed against the damp vinyl, her body humming, utterly spent. She felt raw. Hollowed out. And profoundly, shockingly different.

Master Kaelen finally removed his hand from her neck. “Satisfactory,” he stated, making a note on his datapad. “A firm beginning. The physiological response is promising. Valeria, help her clean up. Torben, debrief in my office in ten.”

He turned to leave, pausing at the door. He looked back at Lyra, a pile of trembling limbs and honey-blonde hair on the stainless steel. “Your first lesson is complete, Initiate Voss. Remember this feeling. The overwhelm. The surrender. The capability beneath it. This is what you will learn to offer. This is what the world will pay for.”

The door clicked shut behind him.

Valeria appeared with a warm, damp cloth, her touch gentle. “You did incredibly well, Lyra. Seriously. I’ve seen veterans tap out from less on their first try.”

Torben, pulling his clothes back on, shot her a tired but genuine smile. “No kidding. You’re a natural.” He winked. “See you around campus, maybe.”

Lyra could only manage a faint, dazed shudder as Valeria tended to her. The sterile white room was the same. The tools still gleamed under the harsh lights. But she was not. As Valeria helped her to her shaky feet, Lyra caught a glimpse of herself in the mirror above the table. Her hair was a mess, her skin flushed, her green eyes wide and forever altered. The girl who had walked in here was gone.

In her place was someone who understood, in her bones and her still-tingling nerves, the first blunt, brutal truth of her new life. The transaction had begun.

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