During class

Emily, still trying to quell the tremors of all the orgasms, she felt her pussy clench instinctively around the dildo of her plush velvet seat. Her cheeks remained a high, furious scarlet, but her mind was trying to focus on the man who had just taken the podium, replacing the severe Dr. Kincaid. This was Dr. Valerius, a thick-set, predatory man with a crisp white shirt that barely contained his muscular frame and a hungry, perpetually amused glint in his eyes.

"Alright, class," Dr. Valerius began, his voice a deep, resonant rumble that seemed to vibrate the floorboards. "Today, we move from theory to application. We've read Chapter One: 'The Penile Brushstroke,' and the sidebar on 'Bio-Art.' Who can tell me the foundational principle of Bio-Art, as it pertains to a woman's contribution?"

Mia, bless her heart, was still wiping the thick residue from her chin, the dildo in her seat working her relentlessly toward another climax. She raised a trembling hand. "Sir, it... it says that the female body's fluids are considered the most 'organic luminesce' for the canvas. Vaginal discharge as an adhesive, and… and semen as a fixative."

"Precisely, Miss Torres. Organic luminescence." Dr. Valerius smiled, a wide, challenging flash of teeth. "And since the Curricular Integrity Act 4.2 mandates that all learning be a 'hands-on, visceral experience,' we shall begin. We need a volunteer to demonstrate a truly unique Bio-Art piece. An image of pure, involuntary expression. Miss Thompson. Front and center, if you please."

Emily froze. Her heart hammered against her ribs like a trapped bird. Her pussy, still throbbing, spasmed violently around the dildo, triggering a sharp, painful jolt of pleasure that made her cry out, "Mmmph!" Her eyes shot up to the Doctor’s, but his gaze was unwavering, commanding.

"Now, Miss Thompson. The assignment is simple: you will create an abstract piece on this canvas." He gestured to a pristine, bright white canvas on a tall easel at the front of the stage, next to the podium. "The sole medium? Your own 'organic luminescence.' Your own juice. A fresh, new application."

A wave of mortification, cold and complete, washed over Emily. She had assumed 'juice' meant spit, or perhaps even a tear or two—anything but that. She looked down at her thighs, slick and glistening beneath her micro-skirt, betraying her perpetual state of arousal. Pussy juice. The class was silent, save for the pervasive, low hum of the chair-dildos and the rhythmic creak of Mia's seat as her hips involuntarily shifted.

Emily swallowed hard, her throat dry. She stood up, the dildo in her chair retracting with a wet pop that echoed indecently in the quiet hall. Her thighs were slick, her pussy lips gaping, wet and raw from the relentless **** of the morning. She stumbled to the front, clutching the Art of Sex textbook to her chest like a shield.

Dr. Valerius stepped back, a wide, expectant grin plastered on his face. "The canvas awaits, Miss Thompson. Make it special. A masterpiece of your own creation."

She stood before the canvas, her mind blank with shock and embarrassment. How? The idea of simply wiping her fingers on herself and then smearing the dampness onto the pristine canvas felt anticlimactic, a pathetic gesture for a 'masterpiece.' She realized what he wanted. He wanted the fountain. He wanted the squirt.

With a trembling hand, Emily placed the heavy book on the podium. The hall was utterly silent now; even the hum of the dildos seemed to dim in anticipation. Every eye was on her. She felt her face burn, turning from scarlet to an angry, painful crimson. Her pussy throbbed, aching with a mixture of shame and the relentless, ingrained need for stimulation.

She looked at her hand, and then at her micro-skirt. She hiked the skirt up high, exposing her bare, dripping pussy to the entire lecture hall. A soft, collective gasp, half-aroused, half-shocked, rippled through the seated students. Emily **** herself to ignore it. Must focus. Must climax. Must paint.

She dropped to her knees before the canvas, her skirt riding high around her waist. She knew what she had to do. She reached down, her trembling fingers finding her slick, sensitive clit. Her pussy was already gushing with arousal, the juice running down her inner thighs. The only sound in the vast, tiered lecture hall was the rapid, shallow gasp of her own breath and the sickeningly loud, slick sound of her fingers rubbing against her engorged, wet folds.

Slick. Slick-slick. Gasp.

She rubbed frantically, her hand moving fast, trying to coax the huge, messy orgasm that would produce the required ‘paint.’ The pressure was immense. She was on a stage, in front of hundreds, painting with her shame. Her whole body shook with the effort and the humiliation. Her head was bowed, her long brunette hair falling forward, but everyone could see the **** contortion of her face. Her C-cup breasts heaved violently with her ragged breathing, her nipples standing out hard against the thin blouse.

She rubbed harder, faster, her clit throbbing under the friction. The juice was pouring now, soaking the floor beneath her, but the orgasm wouldn't come. The very act of trying to climax under such cold, clinical observation was an immediate psychological inhibitor. Her hand was starting to cramp, the muscles in her arm screaming in protest.

Rub. Rub. Rub. Nothing.

A frustrated, choked sob escaped her. She had been through five orgasms on the bus, three in the cafe, and three more in the chair—her body should be a twitching, hypersensitive mess. But now, when it mattered, when the humiliating art depended on it, her greedy, overly-trained pussy had shut down. It craved the rough, impaling stretch of a dildo, the brutal shock of a man's cock, or the focused pressure of a vibrating machine, not this pitiful, manual labor. Her hand was spent, her fingers going numb, and the only thing she had produced was a puddle of pre-cum on the floor.

After what felt like an eternity—a heavy, suffocating silence broken only by her frantic, wet sounds—Dr. Valerius finally spoke, his voice dangerously soft.

"Miss Thompson," he drawled, the sound a violation of the silence. "Your hand is completely spent. I believe the Curricular Integrity Act also mandates that a student's or teachers dedication to the assignment be fully supported. Do you require assistance?"

Emily’s face was scarlet, her gaze locked on the puddle of her shame on the floor. She could only whimper, her voice barely a thread. "P-Please... I can't... I need help."

The sound of his polished leather shoes clicking on the stage floor was the loudest sound she had ever heard. He approached, standing over her kneeling, bare-assed, dripping form. The shadow he cast was immense, swallowing her.

"Then let me assist you in creating your masterpiece."

He didn't speak again. He simply grabbed her by the arm, hauling her up, forcing her to stand with her back against the canvas. He ripped open his shirt, sending buttons scattering across the floor, revealing a thick, muscular chest, and then, with a single, brutal tug, he pulled his trousers down around his ankles.

His cock sprang out, thick, heavy, and violently rigid, glistening with its own eager pre-cum. It was massive, far larger than any dildo she had ever ridden, a brutal, pulsing weapon of flesh.

Emily gasped, her mind shutting down, her body instinctively obeying the new rules. Her slick, empty pussy ached for the invasion, a betrayal of pure, ingrained hunger overriding all shame.

Dr. Valerius grabbed her hips with two huge, unyielding hands, tilting her pelvis. He didn't bother with foreplay, didn't bother with lube—her own nervous discharge was more than enough. He simply shoved.

The head of his massive cock hit her slick folds and, with a thick, brutal, wet SLAP, slammed deep into her pussy.

"Ah-ghk!" Emily screamed, a sharp, ragged sound of pain and shocking fullness. Her virgin walls, stretched and softened by seven years of dildos, were suddenly stretched past their limit. It felt like her body was splitting in two, the sheer, hard volume of him filling every empty space.

Dr. Valerius ignored her cry. He thrust again, harder, driving the entirety of his shaft, balls and all, deep into her, pinning her to the canvas. The sound that filled the hall was the sickeningly loud, rhythmic SMACK-SQUISH of his hips hitting her ass cheeks. The crowd was utterly silent, every student watching the live demonstration.

"You wanted a masterpiece, Miss Thompson," he growled into her ear, his voice ragged with effort and predatory satisfaction. "Let's give them a masterpiece."

He began a brutal, fast-paced rhythm, his cock slamming in and out of her with piston-like ferocity. Emily's breasts bounced violently with each thrust, her head whipping back against the canvas. Her nails dug into the unforgiving wood of the easel, trying to find purchase, trying to hold herself together as her body was brutalized.

The intense, raw friction was a shock to her dildo-trained pussy. His thickness was overwhelming, scraping her sensitive G-spot with every deep plunge. Her screams quickly devolved into thick, wet, choked moans.

"Faster, you greedy bitch!" he snarled, his voice a low, furious command, accelerating his rhythm. "Clench for me! Art requires focus!"

SMACK-SQUISH-SMACK-SQUISH.

She was utterly helpless, completely possessed by the enormous, grinding shaft. The pain was quickly overwhelmed by a tidal wave of involuntary, instinctual pleasure. Her pussy started to spasm, contracting violently around his cock, trying to milk the sheer volume of him. Her body was a screaming, heaving mess of raw arousal, her hips buckling forward to meet his cruel thrusts.

"F-F-Fuuck! Oh, g-god, P-Professor! P-P-Please!" she cried, her voice tearing.

He ignored her plea, slamming his hips against her with an unrelenting fury, driving her closer and closer to the breaking point. His cock was a blinding focus of white-hot intensity, a punishing, glorious reality.

"Paint for them, Emily! Give them the organic luminescence!"

She could feel the orgasm building, a massive, overwhelming pressure coiling deep in her gut, a frantic, unstoppable ****. Her muscles tensed, her eyes rolled back into her head, and her throat opened for a final, shattering shriek.

"I-I'm CUMMING! A-AHHHH!"

At that exact, split second, as her body began to shudder and convulse, Dr. Valerius gave one final, brutal thrust, shoving his hips up against her, and then, with a smooth, violent motion, he tore his cock free.

It ripped out of her with a deafening, wet SLOP, leaving her slick and gaping.

The **** of her massive, uncontrolled, shock-induced orgasm was already in motion. With no cock to absorb the explosion, the fluid shot out of her pussy like a fire hose.

A massive, warm, sticky torrent of cum and squirt erupted from Emily, flying across the stage, spraying directly onto the white canvas in a wild, chaotic burst. It was a masterpiece of involuntary expression—a large, abstract splatter of her deepest shame and pleasure, her 'organic luminescence.' The fluid dripped down the canvas, a thick, glistening smear of white and clear, hot juice.

Emily's body spasmed violently, her legs collapsing instantly. She fell to the stage floor with a sickening thud, her pussy still gushing and twitching uncontrollably. The sheer **** of the brutal coitus and the devastating climax had taken everything.

She tried to gasp, but all that came out was a high-pitched, rattling moan. Her eyes fluttered, her body completely limp, exhausted, and utterly spent. She had lost consciousness.

As Emily’s **** body hit the stage floor, sinking onto the velvet carpet, the sound of a high-speed, insistent WHIRRRRR ripped through the post-climax silence. A sleek, thick, glistening dildo, perfectly calibrated to her settings, rose instantly from the stage floor directly beneath her fallen body.

It was fast, smooth, and hard.

It slammed into her ****, twitching pussy with a brutal, single thrust.

SFFFLOPP.

The enormous dildo drove deep, impaling her limp body, forcing a final, long, agonizing scream from her throat even in her **** state. It was a sound of absolute violation, of pain and of a pleasure so intense it broke the mind. The dildo’s relentless vibration kicked in, ensuring her **** body would continue to be ruthlessly fucked.

The sheer horror of the situation finally snapped the class out of its trance. A low murmur of shock mixed with intense, **** arousal rippled through the hall.

Dr. Valerius, however, was unfazed. His massive cock was still rigid, thick with Emily's cum and his own **** need for release. His eyes scanning the room, landing instantly on the swollen, glistening lips of Mia Torres.

Mia, still mounted on her own dildo, watched the collapse of her friend with a horror that was quickly being twisted into a raw, burning arousal by the relentless friction from below. Her lips, thick and perfect, were parted in a silent, horrified gasp, still glistening with the residue from Brandon’s earlier violation.

Dr. Valerius strode down the steps, his leather shoes clicking a hard, unforgiving rhythm. He stopped directly beside Mia's desk.

"Miss Torres," he commanded, his voice tight with an urgency that brokered no argument. "The class requires the full absorption of the lesson. Open up."

He didn't wait for a response. He grabbed Mia by her thick, dark hair with a hand that was still trembling from the brutal release with Emily. He yanked her head back, exposing her throat, and then, with his other hand, he unzipped his fly.

His cock sprang out, thicker and harder than ever, its head glistening with a fresh bead of pre-cum. He didn't ask. He didn't coax. He simply grabbed her jaw, **** it open, and slammed his rigid, furious length into her mouth.

The brutal, wet impact **** a thick, choked GA-AAH from Mia, her eyes watering instantly as his enormous shaft rammed down her throat, the head scraping the back of her soft palate. He pushed, forcing her head down onto his nuts, cutting off her breath completely.

Mia's hands flew up to the armrests, gripping the velvet, her knuckles white. She couldn't breathe, couldn't protest, only sputter muffled, useless sounds around the massive invading cock. The dildo in her chair, sensing her escalating arousal, sped up its vibration, compounding the violation from above with relentless, involuntary pleasure from below.

Dr. Valerius worked her mouth like a tight, **** hole, his hips slamming forward with brutal, violent efficiency. Slap-squish-slap-squish. His nuts hammered against her chin with each powerful, unforgiving thrust, driving his cock deeper and deeper into her resisting throat.

She tried to pull back, but his grip on her hair was absolute, a cruel, painful lock that made her scalp burn. She could only writhe on her chair, her pussy relentlessly fucked by the dildo, while her mouth was savaged by the professor's enormous cock.

The raw, pornographic fervour of the **** was immense. Mia's perfect lips stretched and strained, forming a thick, wet, vacuum seal around the rigid shaft. Drool and his own excited juices streamed from the corners of her mouth, soaking the front of her blouse.

He pulled back, just far enough to let her gasp one single, choked breath, and then slammed it back down, driving his full length into her gorge with a deep, furious grunt.

He felt the tension building—the raw, brutal relief he needed after the explosive climax with Emily. He sped up, his body trembling, his hips a furious piston.

"Swallow this lesson, Miss Torres!" he roared, his voice thick and guttural with approaching climax. "All of it!"

Mia's body seized up, her pussy spasming around the dildo from below, but her focus was on the suffocating, brutal invasion above. With a final, furious series of thrusts, his body tensed, and a massive, thick torrent of cum shot out of his cock, flooding Mia's throat.

It was a devastating deluge of hot, sticky fluid. Mia's eyes rolled, her throat convulsing wildly, and she was **** to swallow the entire, agonizing load in one painful gulp.

Dr. Valerius pulled out with a loud, wet POP. He didn't look at her, merely wiping the semen and drool from his cock onto the back of her head, zipping his fly back up with a sound of utter, callous finality.

"The class is dismissed," he announced, his voice regaining its professional veneer, despite the heaving, spent bodies on the stage and in the seats. "You have your new texts. The next assignment will be a live demonstration of 'The Geometry of Ecstatic Penetration.' Be prepared."