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Excitement coursed through his veins as he stepped up to the bed. The young man was sprawled out in sleep, sheets pooling sinfully around his waist, barely covering the planes of naked skin.
His tongue darted out in anticipation, breath hitching as he waited and simply looked, savoring the moment. His prick twitched.
Reaching out with his hand, he slowly pulled the sheets down uncovering more and more of that delectable body spread out in front of him.
He exhaled sharply as he patted the warm skin, down the line of his spine all the way to the globes of his exposed ass.
He’d waited and now finally, the time had come.
Squeezing the flesh under his fingers, appreciating the firm muscles of the boy’s glutes he stepped closer.
Daringly, he pushed the boy’s thighs apart, palms groping and pulling to expose the tight furl of an asshole, yet his gaze remained on the puffy pink flesh beneath.
Every day, he’d checked, watching how, under his careful and secretive admission of Alpha semen in various foods and drinks, he’d changed his designation. What used to be the body of a mere beta had been enhanced by the development of the anatomy of an Omega. Internal change was the initial sign. Indicating the beginnings of a bitching.
Hormonal shifts subsequently affecting the mood and then later the growth of sexual organs. Cramps being the only indicator of a womb growing. Aching pectorals hinting at mammary glands and an increased sex drive the boy beneath him couldn’t have known the origin of.
And lastly, the outward change. Thinning body hair, a change in scent and most gloriously, what used to be a perineum had over the duration of multiple weeks become swollen and inflamed-looking flesh, before parting, giving way to an opening to the vaginal channel and newly formed womb, thus concluding the change.
Now a glistening slit was splitting the flesh between the boy’s legs, hot, flush and pink - a pretty little cunt situated right between his balls and asshole.
It was perfect, small and untouched and oh so warm. His to possess, his to claim. Virginal. But not for much longer. Saliva gathered in his mouth at the thought, prick rising to half-mast as his fantasies already got away from him. The young man beneath him shifted in his sleep with a small sigh.
A sleeping pill in his nightly tea had taken care of any potential interruption.
His own dick was straining stiffly against the confinement of his trousers now.
He shifted his grip and groped unabashedly, kneading the globes of the boy’s ass, pulling them apart just to see that pussy wink open the tiniest bit.
His hard cock throbbed, balls twitching and he could feel the dampness on the fabric where precum had begun to blurt out of his eager dick.
He petted over the slit with a thumb, a slight sheen sticking to his skin, warm and wet, but it did not give easily under his touch as it should. Not yet. He ought to probably wait for another day or two. The flesh had not yet retained its flexibility, the split not yet complete, but he could not wait.
Not anymore. His chest rose in turn with his shallow breaths, excitement urging him on.
He pressed a finger against the tight cunt, pushing forcefully until the walls parted with a sudden, slick sound.
The boy under him made a breathy sound even in his sleep.
His cunt fluttered and contracted around his probing digit. The sensation drove right down to his dick.
Even unaware as this newly minted Omega was, he already tried to please his Alpha.
He groaned under his breath at the feelings this thought evoked.
A hand went down to his hard and leaking cock, gripping it to alleviate some pressure.
That motion turned into something more and he began to rut against the heel of his palm while he fucked his finger into the boy's cunt, pulling back and pushing in again - once twice, relishing the tight grip of the hot textured walls rippling around him. Impatience drove him to slip in another, parting the wanton flesh. It was turning slick with arousal under his stimulation.
He groaned, slipping his hand fully into his pants and gripping his shaft.
Patience, he had to remind himself.
The boy would carry his children before long.
He fucked his fingers in more harshly, sliding them into the newly formed vaginal canal, tight and hot. A small gasp escaped the sleeping boy, breathy sounds likely marred with pain.
He dragged his fingers back and forth, aiming to stretch the hole to prepare it for his large Alpha cock, savoring every small noise and gasp, and the slick sound as he fingered the tight pussy.
“Fuck,” he grunted when it all became too much and desire threatened to overwhelm him.
He could not wait any longer. Hastily, he freed his throbbing penis, painfully hard and dripping with precum smeared around the red tip. It twitched up toward his stomach from sheer want pointing at that delicious cunt he wanted to bury it in.
He grabbed the boy’s thighs, pressing his legs apart, and situating himself between them.
Likely he was still too tight, still too raw but the womb was formed. He’d given him fertility shots for weeks now, every night even before the change was visible.
He just had to be ready.
He lined himself up, rubbing his cockhead against the hot slit, moisture gathering, both precum and slick. The pussy lips parted under the pressure – red and flush – but when he made it through the hole it felt tight.
He groaned in anticipation, precum drooling from the tip of his cock, turning the hole ever more shiny.
A sharp hiss of air pulled through his teeth when he pressed in, the flesh giving way under his forceful entry.
The high-pitched gasp of the omega drove right down to his groin. Even in sleep, he was a wanton slut.
“That’s it,” he muttered hoarsely as his cockhead popped inside. The walls clenched around him.
He moaned, cock twitching and his whole body shuddered as he forced himself to pause for a moment to keep from popping his knot prematurely.
The boy under him shifted in his sleep. He held his legs so they wouldn’t move as he forced his way inside. Slowly but steadily his shaft speared into the virginal pussy.
A hint of resistance, when he reached the hymen. The thought alone brought him nearly to the edge. He fucked through it in one single movement.
The boy beneath him whined and his pelvis turned flush with the hips underneath. His cock throbbed hard, spurting precum.
And then he began to fuck into it. Grunting and groaning as he moved his hips, balls thick and swollen, slapping against the boy’s ass.
Sheer animalistic want drove him as fucked his cock into the hole, feeling the walls gripping him, the tight hole fluttering under the foreign intrusion.
He grabbed the boy’s hips, manhandling him until he could spear deeper, offering his pussy up to get the perfect angle as he caged the omega between his body and the bed.
Sweat glistened in his skin and he groaned hotly against the boy’s neck, as he felt the spongy sensation against the tip of his cock. The boy’s cervix.
His hips moved as he fucked his cock in out of sheer instinct. In and out and in and out, hard against the muscle keeping him from penetrating the boy’s uterus.
Almost unconsciously he began to lick and nip and kiss at the stretches of skin available to him. Marking the omega under him even more. Claiming him, tainting him.
He could feel himself shift and change as arousal was building evermore. His cock changed shape, the mushroom head turning pointy as his desire to impregnate the omega underneath him became an instinctual need. He growled and grunted, throaty breaths spilling over his lips as he pinned the sleeping omega down. Even in sleep, the boy moaned wantonly, canting his hips up ever so slightly, presenting.
He fucked relentlessly, battering the tight muscle and the slick walls fluttered around him, stringy liquid drooling out of his cunt in preparation for what was to come.
The tight opening deep inside loosened under the pressure, mouthing around his cockhead, suckling it just right, virtually begging for his seed.
He pinned the omega’s neck, holding him down and grabbing his hips at the same time when he speared through with a violent thrust.
The boy beneath him keened.
His cock was in his womb. It throbbed hard and he was a moment away from cumming. He felt the tightening of his balls as he fucked in again, jackhammering into the omega’s womb. The slap of flesh and his harsh breaths were the only sound.
His balls smacked against the raw flesh, wet from slick and sweat. His knot was swelling and he pressed it against the tight opening. The walls parted under his forceful intrusion and he had to rut against that delectable ass in order to fit it in. If he’d let it grow outside there’d be no doubt that there’d be no chance of a proper knotting. But he wanted to make sure to breed the boy so he took care not to pull out too far.
His knot was growing under the delicious grip of those walls contracting around him.
Pleasure was driving down his spine. He wormed a hand underneath the boy’s hips, finding his little cocklet – shrunk from his administration of Alpha seed and he rubbed it, jerking it as best as he could to induce the locking mechanism those sweet omega cunts were made for.
He pressed his hips down hard, grinding and swiveling, the tip of his cock lodged firmly into the boy's cervix, knot swollen large and his balls crushed against the omega’s cunt.
The boy’s hips canted up, the whole body twitching when he finally brought him to orgasm. The boy’s pussy clenched tightly around his knot when they finally locked, clamping down around his cock and contracting violently to induce his ejaculation.
His orgasm came over him like a sledgehammer. His balls jumped and seed spurted out, right into that fertile womb.
Hot and thick ropes of cum shot through his throbbing shaft and he ground his hips against the boy’s ass, groaning like an animal while that pussy milked him for all that it was worth.
The speared hole drooled slick, contracting around his penis, tightening in periodic movements, milking him for his seed.
His balls twitched and jumped, pumping out cum and he pulled the boy's hips up higher out of an age-old instinct to breed.
The omega’s cervix locked tightly around the tip of his shaft, his womb welcoming the virile seed rushing toward the fertile breeding ground.
Rope after rope of cum was deposited in that fertile womb, sperm crowding against the eggs that had been released in response to the Alpha penetrating his cervix.
The boy beneath him gasped and moaned, cunt fluttering, while he ground his hips tightly against him.
The knot locked them together, pussy clamping down and they would not be separated for at least half an hour till his seed took root.
His churning balls jumped once twice, while his cock twitched periodically, dumping more seed in the newly minted omega.
The boy’s cunt clenched around him as he collapsed on his back, a heavy weight pinning the boy down.
Even should he wake, he wouldn’t have been able to escape now. He was pinned and knotted, bred and claimed.
Leisurely, the Alpha ground his cock into the tight hole, swollen balls pumping more cum into the sleeping omega beneath him.
He’d be pregnant by the time the night was over.