Yoon Siron dragged himself backward on his ass, retreating in a panic.
“I—I’m not going in!”
The farther Siron moved, the closer Lewis came, smiling like an over-eager teenage boy, his expression tinged with a combative thrill.
“If you go in, we’re doing it.”
“...What?”
Siron, panting and dazed, echoed back the words dumbly. Lewis didn’t respond—he just fixed his gaze on Siron and aligned the tip of his glans with the entrance.
When he rubbed the swollen head in slow, forceful circles against the tightly clenched rim, Siron flinched and exhaled a choked breath.
“Ah—no... ah!”
Lewis pressed harder, forcing the glans into the sealed hole. It sank in with relentless pressure, piercing the narrow inner membrane like a sharpened arrowhead burrowing into flesh. The girth of it felt like he was shoving in an entire fist.
The rush of pleasure Siron had felt moments earlier vanished in an instant, replaced by searing pain that ripped through him like a blade. Fear and agony surged into the space that bliss had just vacated.
“Ggghhuuuuhk!”
A sound like a pig being slaughtered tore from his throat.
“Guh—kuh, agh, aaagh!”
“I spent a whole month fantasizing about hearing your moans, Bebe. Huh... this is not quite what I pictured.”
“Khh—fucking—fucking shit! Aaagh!”
Lewis chuckled and gently bit the tip of Siron’s nose. The added sting made Siron grimace hard, his face contorting. But the real breaking point came as Lewis kept pushing in deeper, unrelenting. Siron couldn’t hold it in anymore—he reached up and grabbed Lewis’s hair.
“S-shit... it hurts! Stop, ngh—stop it!”
Siron clutched at Lewis’s hair, sobbing as he pleaded desperately.
“Ah—your hair! If it hurts, then ease up a little, will you?”
“It—it hurts! Ngh, it hurts so much I—I can’t, I just—stop, please, stooop!”
Lewis had always believed that no one in his family, not even among his ancestors, had the baldness gene. But at this rate, he was going to end up worrying about hair loss from trauma alone. He grabbed Siron’s wrists, pried them off his head, and pinned them down hard against the bed.
“No choice. We’ll suffer through it just this once.”
“...What?”
In that instant, Siron was hit with a rush of Lewis’s pheromones. It felt like a delicate net made of spider silk had landed on his skin, clinging in a sticky, invisible web.
As an inexperienced omega, Siron instinctively took it in—desperate to escape the pain, or perhaps to loosen himself further. The air drained from his lungs as he breathed in Lewis’s pheromones like he was stealing them. Slowly, the tension in his muscles began to dissolve.
Lewis began pushing in with brute force, like trying to drive a heavy rod into dense mud—slowly, but with purpose and absolute pressure. Yet the narrow passage ahead held firm, as if barricaded, resisting every bit of him.
“AAAGH! Agh—it hurts!”
It felt like his guts were being hoisted upward. There was no way this could physically work. Each time Lewis pushed deeper, Siron felt as if the inner fibers of his body were snapping apart. That sensation dragged on for what felt like an eternity before Lewis was finally able to bury himself in completely, all the way to the base, inside the cramped opening.
“Ahhh!”
The shock made Siron’s entire body seize with trembling spasms. He couldn’t breathe—the pressure was suffocating. Just as he felt himself about to black out, the shaft slipped halfway out again, only to drive back in even deeper with a heavy thrust. The thick head didn’t find a path so much as it forcibly shoved aside his intestines, pressing them upward. Then the whole mass was dragged back down, crushed and stretched around the massive cock grinding them into erosion.
“Haa, ngh, hahh... it hurts...”
“It hurts? You’re—hah—sucking it in like a fucking pro.”
Lewis didn’t miss the chance. With mechanical rhythm, he began slamming down from above, thrusting in past the halfway mark again and again. Each time he drove in, it felt like Siron’s insides were being punched from the inside out.
“Hngh—aaah! Hhiek—hah! Aaah—haa!”
With both of Siron’s wrists pinned to the bed, Lewis pressed in even harder. The worn mattress gave a loud creak under the weight of each thrust, rocking violently up and down. Siron’s moans grew high-pitched, breaking apart in rhythm with the pounding pace—until even those were swallowed into silence by Lewis’s mouth devouring his lips.
Every movement from Lewis shoved Siron past the edge of sensation into some new, uncharted place. Each time the cock pierced deeper, it sent shocks down to the bones. As it ground in and pulled out from the narrow passage, scraping insistently against sensitive spots, Siron’s body convulsed in fine tremors, jolting with every strike.
"Why the fuck—haah—won’t this part—open?"
The inner walls weren’t drenched, but damp enough. The rectum was relaxed, sufficiently loosened. But beyond that, it was too tight, bent at an awkward angle like a right angle hook—no matter how much pressure Lewis applied, it wouldn't open. For Siron, that was a small relief. If that monstrous thing tried to go in any further, he might actually end up in the hospital.
“It’s not—ahh—supposed to—hngh!—go in!”
“Yeah?”
Lewis pulled out his deeply embedded cock and forced Siron upright, pushing him onto his knees. Sitting behind him, Lewis shoved the shaft back between his cheeks, halfway in.
“Huaaah!”
The inner walls stretched open, clamping tight around his prostate with a crushing pressure that left Siron forgetting to breathe. With one hand, Lewis gripped Siron’s pelvis; with the other, he clutched Siron’s cock and balls, holding them tightly so they couldn’t move. Then he started thrusting at a relentless pace.
It was the perfect angle to strike the prostate. Enlarged as it was, each hit landed squarely. And sometimes, just sometimes, the cock reached even deeper—perhaps grazing the upper ridge of the prostate, or maybe even farther—and Siron would be hit with a chilling wave of pleasure. It had to be because of the inner cervix developing inside him, like Isaac’s cursed prophecy had warned.
Lewis pounded mercilessly into Siron’s prostate and around the inner cervix, each thrust driving in like a hammer blow. It wasn’t enough just to touch the cervix—he pressed against its slick surface hard enough to feel like he might punch through it. Siron nearly blacked out from the overload, sobbing openly as the rush of arousal swallowed him whole.
“Stop! Hah—ghhk—s-sorry! Hnn, haah!”
Tears soaked the corners of Siron’s eyes. Without even realizing it, he came. The moment he ejaculated, his hole spasmed violently, clamping tight around the thick shaft. The rapid rhythm slowed to a dragging grind as Siron’s opening clenched down hard around Lewis’s cock.
As the pace dropped, the contours of the cock inside became unmistakably clear. His anal muscles and flesh swelled up, wrapping tightly around the thick shaft, the bulging, rootlike veins, and the burning-hot bare skin. The sensation was too vivid, too delicate—feeling every bit of Lewis in such detail made Siron’s mouth go dry. It was unbearable, that kind of craving.
Even though they were already having sex, he wanted to have sex. He wanted to be penetrated deeper. But maybe it had been too long—like a closed pyloric valve in indigestion, the narrow passage ahead couldn’t take in the fist-sized head of that cock.
After enduring what felt like a torturous ecstasy that tested every ounce of his patience, Siron collapsed the moment Lewis’s grip eased. But before he could fully escape, Lewis caught him again. His strong hand slid under Siron’s thigh and flipped his body upward toward the ceiling with brute strength.
“Aughk!”
There wasn’t even time to feel pain from the friction and scraping of the inner walls against the shaft. Siron’s body was barely balanced on the edge of the bed, legs hooked over Lewis’s arm, his waist half-lifted into the air.
Just like that, Siron was penetrated deep.
“Aaaaah! Ah! Haaah, aagh!”
Lewis’s movements carried a measured violence, stimulating every part of Siron’s depths. The glans would hover at the edge—then slam in all the way to the base, Lewis’s scrotum mashing tight against the rim of Siron’s entrance with every brutal thrust. It was ferocity on an entirely new level.
The added weight of Lewis’s body and the force of those deep penetrations wrung sharp, pitchy moans from Siron. And from between Lewis’s clenched teeth, a beast-like, low growl of pleasure began to escape. Soon, Lewis’s body gave a jolt and tensed—then he collapsed forward, bracing himself on his arms beside Siron’s head.
In that moment, Siron’s prostate was crushed mercilessly. The shaft swelled thick as a baseball, forcibly expanding his inner walls.
“Hhhuh? Hih, uh, aah!”
Inside Siron’s rectum, just a finger’s depth in, a tight, intense pressure radiated outward. As his prostate was smothered without an inch of space to spare, Siron began to climax again. The pleasure didn’t seem to have a limit—it didn’t diminish at all.
And Lewis—he was releasing something inside.
From deep within, something hot surged into him like a flood. It wasn’t urine; it felt more like the concentrated essence of pheromones, pouring into every crevice inside and lighting it on fire. Wherever that searing fluid touched, heat flared and raged.
Siron couldn’t make sense of what this sudden change meant. The overly sensitive inner walls filled with hot liquid, the massive cock swollen to full girth, bearing down on his guts. And the more pressure Lewis applied, the more Siron’s stubborn, gripping tunnel clamped down, as if trying to crush the bloated shaft.
His vision flashed and whitened from the strain on his nerves, and his lower body spasmed violently. Siron sobbed and cried out—but even in that painful moment, he felt absolute pleasure.
Just as his pupils rolled back and consciousness threatened to slip away, a sharp sensation jolted him back. He felt his hole stretching open wide. Lewis was trying to pull out. He shifted his hips backward—but the swollen girth of his cock had locked against the rim of Siron’s entrance, restricting movement.
“Hhhhnng! D-Don’t, hng, move...!”
Siron shook his head frantically, writhing. If Lewis pulled his cock out now, it felt like the bottom would fall out—like everything inside him would come crashing out in one explosive spill.
“You okay?”
“N-No, hhk—not. Hng! Not okay!”
Just shouting raised the pressure inside him, amplifying the sensation. The nerves crushed around his prostate sent waves of pain-tinged pleasure through him, and Siron sobbed openly as he asked,
“Haah, what... hhup, what is this.”
“I don’t... hah, I don’t know either.”
“What?”
“It’s my... first time experiencing this.”
A memory stirred in Lewis’s mind—something he’d heard once before. It was about a peculiar physiological phenomenon observed during canine mating. During copulation, the male dog’s penis swells inside the female’s reproductive canal, locking the two together and preventing separation until the act is fully complete.
Could it be that alphas had inherited some genetic trait from canines, alongside their human DNA? Lewis felt a mix of revulsion and fascination toward his own body. The swelling at the base of his cock—he had never experienced that before, not even during solo ruts. That meant this strange occurrence might only be triggered during intercourse, and only in response to omega pheromones.
And even now, Lewis didn’t feel satisfied. It was as if his climax had been forcibly suppressed. Like something that wanted to explode upward was being yanked back down every time—frustrating, bitter pleasure that built and choked him. Siron was clearly struggling just from the mild swelling—but Lewis knew, with grim certainty, that this wasn’t the end. He could feel it. He could heat Siron up even further with aggressive pheromones. His cock could swell so much more—so much that it might tear Siron’s guts apart just trying to contain it.
Siron’s pheromones poured over him like a downpour, soaking Lewis from head to toe. Burying his cock in the twitching heat of Siron’s insides while slowly releasing pulse after pulse of cum made his skin crawl. It was like he’d performed an enema on Siron and then sealed the opening shut with a massive dildo. Whatever kind of filthy things Siron had done in the past with Baekgyeong, he likely hadn’t experienced this level of depravity.
Lewd and disgraceful as it was, Lewis liked the idea of being Siron’s first.
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