Chapter Text
What Jay didn't know wouldn't hurt him. He didn't know his drink was laced with a sedative, didn't know Nathan was waiting for it to kick in, didn't know Nathan was waiting for him to fall into a deep sleep in his bed so he could fuck his Omega older brother. Nathan was planning on getting his brother pregnant before his next heat came around, so truly he was doing him a favor of sparing him that headache. His brother's heats were rougher on him than on other Omegas for some reason, and he'd had his first heat quite young at fourteen, when Nathan was just twelve. Nathan had presented as an Alpha early as well, just a year after Jay's first heat. Since then, he'd been lusting after his older brother for four long years.
He was seventeen now and Jay nineteen. Thankfully, his helpless older brother was still unmated, still single. There were definitely other Alphas out there interested in Jay, but Jay paid them no mind. He was "focusing on school", he said. It worked just as well for Nathan, providing him this golden opportunity to fuck his brother silly. He didn't need to seduce or persuade Jay— he was going to make him his whether he wanted it or not, and the idea of taking his older brother while he was unconscious and unable to resist made him hot under the collar. His sexual fantasies had often hinged on Jay being unable to resist for one reason or another. He liked the idea of the Omega having no choice but to take his cock, to accept the brutal fucking.
Anyways, back to the point, Jay did manage to make it to his bed before he passed out from the sedative, proclaiming he was tired and not hungry and that was why he left their dinner table early. Nathan finished his own food and cleared both their plates, glad both their parents were out of town for the week, leaving just the two of them home alone. There was no one around to interfere with his plans for his soon-to-be Omega mate. He was waiting to knock Jay up first before mating him, after all, Jay being pregnant with his baby would be a good reason, a good excuse, to mate him.
His older brother had stripped out of his shirt but had fallen asleep with his pants still partway on, revealing the lewd panties he was wearing underneath. Just the sight of the blue lace panties against his brother's pale skin had his cock thickening in his boxers. He couldn't believe his brother was wearing something so scandalous underneath the whole time when it was just them at the house. Who was he wearing the panties for? Did he…want this? Nathan swallowed the saliva pooling in his mouth, trying not to drool. His brother was a slut.
He smacked one smooth, exposed ass cheek, watching it jiggle and redden from the force of his palm. Jay twitched and groaned but didn't wake. Nathan spanked him harder and Jay moaned. His brother was a masochistic slut and he was going to make sure his brother carried his babies. He carefully peeled down the panties, revealing his brother's perfect, biteable ass in all its glory. He parted the two pale globes to reveal Jay's boypussy, wet and glistening with slick— not a lot of slick, but enough to show a hint of arousal. He'd been turned on by being spanked, even in his sleep.
Nathan felt his cock grow harder at the sight of his brother's hole, and as much as he wanted to slide home and fuck his brother's brains out, he knew it was better to wait. First he wanted to indulge in his brother's body. He lifted Jay's hips up so he was up on his knees, ass in the air, torso and head still flat against the mattress. He licked a stripe from the tip of Jay's semi-erect cock to Jay's sweet-smelling hole, gulping down the viscous slick like it was the sweetest nectar. He pressed his tongue against Jay's pucker, forcing his walls open with the tip and sliding his tongue deeper into Jay's ass.
He fucked his tongue in and out of Jay's boypussy, rewarded with several gushes of slick as he triggered several pleasure points within Jay's body. By now, Jay's small cock was fully hard and leaking pre-cum just as much as his boycunt was leaking slick. His brother tasted delicious. He slowly removed his tongue, licking his lips to get the last taste of Jay's slick. Jay's hole was considerably softened from his ministrations and his own slick. He was ready.
Nathan stripped off his own clothes and the rest of Jay's, leaving them both naked and exposed. He stroked his large Alpha cock and pointed it at Jay's tight little hole. It was hard to think such a small hole could take such a large intrusion, but Nathan would make it work. He would make sure of it, he had to knock Jay up. He needed to make Jay his.
He pressed the tip of his cock against Jay's tight pucker, pushing his way inside the insanely tight walls and forcing them wide open. He sank in inch by inch, groaning at the delicious tight heat gripping his cock. His brother's ass was awesome, just as he knew it would be. He wondered for a moment if he was stealing his brother's virginity before dismissing the thought before it could ruin his mood. If he was, it was a turn on, if he wasn't, he'd just be consumed by a jealous rage he wasn't the first Alpha to have the beautiful Omega that was his older brother.
When he finally sank the last inch in, he could feel his cock pressing against Jay's stomach and knocking his womb, kissing his tight cervix. Imagining violating that private part of his brother had his cock twitching and leaking pre-cum. He was already violating his brother as it was, but thinking about impregnating his brother made him hard as a rock and increasingly horny.
He began to fuck into his brother like a wild beast, desperate to open up his womb and coat it with his cum. He wanted to fuck his brother on his knot, wanted to see his brother's hole stretch to take it before swallowing it down greedily. It was those thoughts that had him quickly chasing his climax, thrusting into Jay with abandon.
His brother was moaning in his sleep, boypussy clenching deliciously tight around Nathan's huge Alpha cock. Nathan couldn't see it from his angle but Jay's stomach was bulging from the size of his younger brother's cock as Nathan thrust in and out of him like a madman.
Nathan finally felt Jay's cervix loosening as he rammed against it over and over again, desperate to violate his brother there and basically guarantee to knock him up even though he wasn't in heat. With one particularly brutal thrust, he forced his tip inside the tight space, feeling a tantalizing pressure around the head of his cock. His knot began to swell at the base of his dick and he thrusted even more aggressively against Jay's loosening boycunt, waiting for his knot to sink into that tight heat.
He came when his knot did eventually sink inside Jay's boypussy, his cock still inside Jay's womb, stretching his cervix. He came load after load inside his brother's tiny womb, feeling the space expand from the amount of his cum. He was going to fuck his brother all night if that was what it took to impregnate his precious brother. He would do this night after night if that was what it took.
Jay, in the meantime, had cum several times, his tiny cock now soft. His ass clenched rhythmically around Nathan's thick cock as Nathan came inside him and his womb was swallowing down the cum greedily, hardly letting any slip out of his loosened cervix. Jay's stomach swelled from the amount of cum Nathan pumped into him. The sight was quite arousing to Nathan and had his softening cock twitching. His knot was still tightly plugged up into Jay's boypussy, keeping his cum stuffed inside his brother.
When his knot deflated, his cock was already back to full hardness so he didn't bother holding back and fucked Jay again. It took a few more times for him to be satisfied and he would now just have to wait and see if his brother had indeed gotten pregnant because of his extensive efforts. It wasn't the first night he had fucked his brother and it wouldn't be the last either.
*
Jay only knew something was off when he woke up with his hole throbbing and a distinctly Alpha's cum leaking out of his ass. He had no awareness or memories of what had happened but the smell of sex and Alpha was thick in the sheets around him. It wasn't the first time this had happened, but it was strange because he wasn't in heat. This shouldn't be happening, but it was. This was the fourth morning in a row he had woke to a stranger's cum in his ass. No, not a stranger. The Alpha's scent was familiar, very familiar but one for some reason he couldn't place.
Without thinking the first morning he had fingered the cum back inside himself, half-asleep and horny and overcome by Omega instincts to get pregnant by an Alpha, regardless of who it was. Now, however, he carefully scraped out the Alpha's cum. Since he wasn't in heat, it was less likely he would get pregnant from bareback sex, but the chance wasn't zero and leaving the cum inside wasn't going to help those odds. He was nineteen and not quite ready to be a parent, he wasn't sure what he wanted yet to be honest. The Omega in him drooled at the thought of getting pregnant but he didn't want to end up being pregnant and unmated. That would be the worst case scenario.
And being fucked by a random Alpha multiple nights in a row who was carelessly cumming inside seemed like a surefire way to end up in that scenario. But he didn't know how to avoid it. He didn't remember what happened during the night. His memories were a blur. It had been like four nights in a row now. It had to be an Alpha close to him, but how were they getting access to his house multiple nights in a row. Was he unknowingly inviting them over and letting them in and just not remembering? The only Alpha in the house with him every night was his precious younger brother, Nathan, but that was his brother.
His brother wouldn't fuck him, wouldn't carelessly cum inside an Omega and leave him to wake up alone. That wasn't his brother's personality.
He was broken from his thoughts by a knock on his door. Speak of the devil and he shall appear— it was his younger brother.
"Everything okay, Jay?" Nathan called from the other side of the door.
Jay quickly tidied himself up, pulling his clothes on. He didn't want his brother to see him in such a disheveled and debauched state.
"Yeah, I just woke up late." He called back, straightening his clothes and clearing his throat.
"I made breakfast, come out when you're ready." Nathan said, and Jay heard him padding away from the door.
He finished tidying his appearance, sprayed cologne on to cover the scent of Alpha and sex all over him, and went out to join his little brother in the kitchen.
*
Even with cologne on, Jay smelled like him. Like his Omega. It turned him on like crazy but he had to hide it, so he subtly pressed a hand down on his eager cock under the table, clearing his throat.
"Rough night?" He asked deceptively casual. Jay blushed, coughing.
"I guess so," he replied with a flush rising on his cheeks. He was so goddamn cute. "How was your night? Sleep well?"
"Oh, it was perfect. I slept great, like a baby." He replied.
"That's good." Jay said with a small smile.
Yeah, it was more than good. And if he had it his way, soon enough he would get the good news. That his efforts were paying off and his baby was growing inside his brother's beautiful stomach. The thought had his cock twitching again with interest and he had to think gross thoughts to get his dick under control.
He wanted a baby with Jay. He wanted to see Jay's stomach swollen with their baby, to see his breasts swell with milk, to see his nipples leaking from it. He wanted to mate his pregnant Omega brother. So he would wait for the time and opportunity to arise, for Jay to be pregnant with his baby before he would make his move, convince his brother to let him mate him.
Because he could selfishly have mated his brother in his helpless sleeping state, but what was the point of that? He wanted his brother's consent to tie their lives together, and getting his brother pregnant with their child would be a great way to convince his brother to accept his mating bond. It was the best way he could think to go about this. He didn't know how else to convince his brother to want him, to allow him to mate him, to mark him and make him his.
So he would wait for the good news. It had to happen sooner or later with how much cum he was fucking into his brother every night. Even if he wasn't in heat, he still had a decent chance of getting pregnant with how Nathan was cumming directly into his womb over and over again, night after night.
Nathan would be patient, because that was his best trait. Patience.