Comic by Yetigo
Heavy footsteps thudded against the floor as a hulking figure lumbered forward from the crowd. Juro's eyes widened as they took in the alien's intimidating form. The alien stood well over seven feet tall, his massive frame encased in thick, armored plates the color of burnished bronze. His limbs were as thick as tree trunks, corded with slabs of muscle.
But it was the massive horn jutting from the center of alien's face that drew Juro's fearful gaze. Over two feet long, it curved wickedly to a sharp point, the surface ridged and textured. As Juro watched in horrified fascination, the horn began to vibrate, emitting a low, pulsing hum that seemed to reverberate through the human's bones.
"Ah, thank you Rorne for volunteering. The Cornet race uses their pronounced horns to communicate with potential mates," Professor Tok explained. "The frequency and pattern of the vibrations convey complex information about the individual's virility, health, and genetic compatibility."
Rorne stepped up to the breeding bench and leaned in close to Juro, the tip of his horn nearly brushing the human's cheek. Juro flinched away, but there was nowhere to go, pinned down as he was. The Cornet inhaled deeply, drinking in Juro's scent, then released a low hum that sounded approving.
The vibrations from Rorne's horn intensified, settling into a rhythmic thrumming that Juro felt resonate through his body.
To his dismay, Juro felt himself respond, his insides clenched and leftover fluids trickled out of his asshole.
"Ahh, excellent, the human is responding well to the Cornet's signals," Professor Tok said. "This bodes well for their coupling."
Rorne straightened up, the loss of the horn's vibrations leaving Juro feeling strangely bereft. But then the Cornet placed his massive, segmented phallus against Juro's belly.
The alien's cock was easily as long as Juro's forearm and nearly as thick as his wrist. The shaft was armored like the rest of Rorne's body, covered in interlocking plates and ridges. And just like the Cornet's horn, the massive organ vibrated, the thrumming traveling through Juro's body everywhere it touched. He could feel it pulsing against his skin, from the hollow of his throat, over his chest, down across his stomach.
Juro's eyes bulged in terror as he beheld the Cornet’s tool. The vibrations emanating from the monstrous organ seemed to rattle his very bones. He began to thrash against his restraints, panic rising in his throat.
"No, please, it's too big!" Juro begged, voice cracking with desperation. "It won't fit, it'll tear me apart! You'll kill me!"
Professor Tok waved a dismissive tentacle. "Nonsense. We have excellent medical capabilities. Any damage incurred during the breeding process can be easily repaired. And your body has already proven quite adaptable." The alien replaced the Cornet between Juro’s splayed legs and prodded the human’s sopping wet hole with a suckerered appendage. "See? The prior seedings have relaxed your muscles and lubricated your passage quite thoroughly. You will accommodate Rorne's girth with only minor discomfort."
The Cornet alien hummed deep in his chest and, walking around the breeding chair, dragged his massive, vibrating shaft over Juro's trembling body. Rorne paused at Juro's chest, the tip of his cock hovering over one of the human’s puffy, abused nipples.
With exquisite care, Rorne lowered his member until just the very tip brushed against Juro's sensitive peak. Juro gasped at the contact, back arching involuntarily. The vibrations from Rorne's cock seemed to intensify, focusing to a pinpoint of sensation on Juro's tender flesh.
Rorne began to trace lazy circles around Juro's areola, the thrumming tip of his cock sending shockwaves of sensation through the human's chest. Juro squirmed in his bonds, a broken moan escaping his lips as the alien teased and tormented his nipple.
The vibrations seemed to sink deep into Juro's tissue, stimulating nerves he never knew existed. His nipple pebbled and tightened, flushing an angry red as blood rushed to the surface. A strange warmth began to spread through his chest, centered on that single point of contact.
Rorne rumbled in approval, increasing the pressure. The segmented ridges of his cock scraped deliciously against Juro's tender flesh as the alien ground against him. Juro’s toes curled as the intensity built. It felt like his entire body, every cell, was humming along with Rorne's vibrating member.
Just when Juro thought he couldn't take anymore, Rorne shifted to his other nipple, repeating the exquisite torment. Back and forth the alien moved, playing Juro's chest like an instrument, coaxing helpless cries of pleasure from the overwhelmed human.
To Juro's mingled horror and arousal, he felt his pecs begin to swell slightly, becoming fuller and heavier. His nipples seemed to grow more prominent, the nubs elongating as if reaching out eagerly for more of Rorne's touch.
"Fascinating," Professor Tok remarked. "The Cornet's vibrational frequency appears to be stimulating rapid tissue growth and accelerating the lactation process we initiated earlier. Most efficient."
Juro flushed with shame, but couldn't stop the needy whine that escaped him when Rorne finally pulled away from his chest. His nipples throbbed, feeling tender and swollen. They tingled strangely, an odd pressure building beneath the surface.
But Rorne wasn't done with him yet.
Satisfied with Juro's flushed, heaving chest, the ridged shaft bumped over each of Juro's ribs, scraping deliciously against his sensitive skin. It dipped into his navel, the tip probing the shallow divot and making Juro squirm.
Rorne positioned himself back between the human’s spread open legs and dragged his massive cock lower. Lower still the vibrating member traveled, until it nestled in the vee of Juro's spread thighs. The Cornet angled his hips, pressing the underside of his shaft against Juro's taint. The human cried out as those powerful vibrations assaulted the sensitive strip of flesh between his stuffed hole and aching balls.
Juro's hips bucked helplessly as Rorne ground against him, stimulating his prostate from the outside. The relentless buzzing seemed to travel straight through him, making his insides quiver.
Rorne increased the pressure, the ridges of his cock catching on Juro's anal rim with each slow drag. The stimulation was maddening, teasing Juro's tender hole without actually penetrating. Juro's thighs trembled as he was edged closer and closer to release.
Just when Juro thought he might actually achieve orgasm from the external stimulation alone, Rorne pulled back. The Cornet alien rumbled in satisfaction at Juro's wrecked state - flushed and panting, cock drooling steadily, hole clenching hungrily around nothing.
Juro's entire body quivered with need, every nerve ending screaming for release. His neglected cock bobbed against his stomach, flushed an angry purple and leaking copiously. The clear fluid pooled in his navel.
Rorne loomed over him, his massive form blotting out the bright lights overhead. The Cornet's curved horn was still vibrating, the low thrum seeming to sync up with the frantic pounding of Juro's heart. The human's eyes were irresistibly drawn to the alien's enormous cock jutting proudly from between his muscular thighs.
Juro imagined how that vibrating cock would feel pressed against his own straining erection. Those powerful vibrations traveling directly from Rorne's shaft into his. He could almost feel the delicious friction of those textured plates rubbing all along his length. It would be pure ecstasy, every nerve sparking with rapture. He knew it would only take seconds of contact, the barest touch, and he would explode in the most intense orgasm of his life.
"Close," Juro rasped, his throat raw from begging and screaming. "I’m so close. Just put it on my dick—"
Professor Tok chuckled. "Now now, you know that's against the terms we agreed upon," the scientist admonished. "We can't have the subject reaching climax without being properly penetrated. It would defeat the purpose of the breeding program."
Juro shook his head frantically, tears of frustration leaking from the corners of his eyes. "I can't! It's too much . . . I'll die if I can't come—"
"Well then, the solution is obvious."
Juro sobbed brokenly, turning his face away in shame.
It wants me to beg for it.
Juro imagined how it would feel to have that huge, pulsating shaft shoved deep inside him. Those vibrations, strong enough to rattle his bones from the outside, stimulating him from the inside out, turning his intestines to jelly. Wringing out every last drop of pleasure from his pliant body until he was nothing more than a limp, quivering mass, every cell thrumming with release.
Juro's cock twitched at the thought, his balls drawing up tight to his body. His fingers clawed uselessly at the padded surface of the bench as a fresh wave of arousal crashed over him.
"Please, fuck . . ." The words slipped out unbidden, barely more than a whisper. Juro squeezed his eyes shut, hot tears of shame trickling down his cheeks.
"What was that?" Professor Tok replied. "You'll have to speak up, Juro. Rorne can't understand your mumbling."
Juro shook his head, a sob catching in his throat, but his treacherous body had no such compunctions. His hips tilted up in clear invitation, his puffy, slick hole clenching and releasing in lewd offering. "Please," he repeated, voice cracking on a whimper. "Fuck me."
Rorne rumbled a sound that might have been amusement and positioned the flared tip at the human's slick, twitching entrance.
Juro's breath came in panicked gasps, his chest heaving against the immovable weight of the alien's member. He clenched his eyes shut as the Cornet’s broad tip nudged against his opening before driving into him.
Juro wailed as his muscles strained to accommodate the unyielding stretch.
Rorne fed his enormous organ into Juro's straining body inch by agonizing inch. Juro sobbed brokenly, shaking his head in denial even as he felt his hole stretching impossibly wider. Each interlocking ridge popped past his rim with a burning slide, scraping his sensitive walls. The vibrations pulsed through his core, resonating deep in his guts.
Rorne's armored hips pressed flush against Juro's upturned ass and the human convulsed, writhing weakly on the end of that monstrous phallus like a butterfly pinned to a card. He could feel the tip of Rorne's cock pulsing deep in his guts, surely pushing up against the back of his throat by now with how impossibly full he felt.
Impaled to the hilt on Rorne's massive, segmented cock, Juro could only hang there limply, gasping for breath. Just as he feared, the monstrous phallus had reached into him beyond what he thought possible. He felt full past the breaking point, the Cornet's armored plates scraping his sensitive inner walls with every minuscule twitch.
Then Rorne began to vibrate.
It started as a low, almost subsonic hum that Juro felt more than heard. The pulsing resonance traveled up the alien's cock, buzzing against Juro's clenching inner muscles. It reverberated through his core, seeming to shake him down to his very bones.
Gradually, the frequency and tempo of the vibrations began to change, rising in pitch and intensity. Juro whined as the sensations morphed from an almost soothing massage to a maddening stimulation that had him writhing on the end of Rorne's throbbing phallus.
The Cornet's cock pulsed faster, settling into a rhythmic pattern of long, intense bursts followed by several short, sharp buzzes. Juro's eyes rolled back in his head as the vibrations seemed to find every pleasure point inside him, ruthlessly stimulating his insides.
It was like being fucked by a giant, living vibrator . . . one that knew exactly how to drive Juro out of his mind with sensation.
Just as Juro began to adjust to this new pattern, Rorne changed it again. Now it was an undulating wave traveling the length of his huge shaft, the ridged segments rippling in sequence from root to tip. The motion massaged Juro's clenching walls, caressing every nerve ending along his anal tract.
"Fascinating," Professor Tok mused, "The Cornet can generate an almost infinite variety of vibrational patterns, each one stimulating different parts of the reproductive tract. This allows them to bring their partners to heights of pleasure beyond what most species are capable of."
Rorne hummed in what sounded like smug satisfaction. He adjusted the angle of his vibrating cock slightly and Juro practically screamed as the pulsing tip ground mercilessly against his abused prostate.
"It's too much," Juro sobbed, shaking his head frantically even as his hips bucked into the overwhelming sensations of their own accord. "I can't . . . I'm going to . . ."
"Ahh, the subject appears to be approaching orgasm solely from internal stimulation," Professor Tok remarked. "This is an excellent development in his training."
Rorne's massive vibrating member pulsed relentlessly inside Juro, sending waves of overwhelming sensation crashing through his overstimulated body. The Cornet's horn hummed in concert with his throbbing cock, the dual vibrations resonating deep in Juro's core.
Juro writhed helplessly. Every ridge and plate scraped exquisitely against his sensitive inner walls as Rorne's cock undulated within him. The alien hadn't even begun thrusting yet — the vibrations alone were enough to drive Juro to the brink of madness.
The frequency shifted again, settling into a pulsing rhythm that seemed to target every single one of Juro's pleasure points simultaneously. It was as if Rorne's cock had mapped out all of Juro's most sensitive areas and was stimulating them with surgical precision.
Juro's neglected member throbbed and twitched against his belly, painting a steady stream of clear fluid. The relentless internal massage had him teetering on the edge of climax, but he couldn't quite fall over.
"P-please," Juro sobbed, beyond shame or dignity now. "I need . . . I can't . . ."
Rorne rumbled, the plates of his exoskeleton clicking. The vibrations intensified, focusing laser-like on Juro's swollen prostate. At the same time, the tip of the alien's cock ground firmly against Juro's cervix, the dual stimulation sending jolts of electric pleasure arcing through his nerves.
Juro's back bowed, every muscle in his body going taut as a bowstring. His mouth fell open in a silent scream as the pleasure crested, washing over him in an overwhelming tsunami.
Without a single touch to his straining cock, Juro began to come.
His member jerked and pulsed, painting his heaving abs with thick ropes of pearly fluid. Each spurt was accompanied by full-body convulsions that had him clenching rhythmically around Rorne's massive shaft. Wave after wave of intense sensation crashed over him as his long-denied orgasm wracked his frame.
Rorne's horn thrummed, the alien clearly picking up on the vibrations of Juro's climax. The Cornet's own massive member began to pulse inside Juro's spasming channel. With a resonant bellow that shook the very air, Rorne reached his own peak.
Juro felt the alien's cock flex powerfully within him as the Cornet came. The pressure was immense, the sheer volume quickly overflowed Juro's stuffed hole, spurting out around Rorne's still-vibrating member to splash onto the floor below.
Juro's eyes rolled back in his head as he felt the alien's molten release flood his insides, the heat and pressure prolonging his own seemingly endless orgasm. His vision began to grey out at the edges as the pleasure became too much for his overwrought nervous system to handle.
The last thing Juro registered before losing consciousness was Professor Tok's clinical voice: "Excellent work. We’ll take a short break, then continue the insemination.”