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‘Things have been escalating recently’, Kaigaku thought as he continued to rub his dick against Zenitsu’s wet folds, making the crying boy beneath him mewl at the sensation.
It had been a few months since Kaigaku first pulled Zenitsu into his room, stripped him of his clothes and used his body for his own pleasure for the first time. He had come all over Zenitsu’s stomach and chest back then, covering him in streaks of white that had made his inner alpha purr in pleasure even if he didn’t allow himself to penetrate. He wasn’t stupid. If he wanted to continue to have his way with Zenitsu he had to keep himself in check, couldn’t leave any long lasting evidence. So he never penetrated the boy’s alluring cunt, it didn’t matter how much he wanted to. And his resolve had been strong.
At least it had been then, recently things had been changing. Maybe it was because of their continued sexual activity, maybe it was because of something else, but Zenitsu’s scent had been getting stronger and stronger recently. Stronger and so enchanting that Kaigaku couldn’t help but pull him into an unoccupied room to cover him in his own scent. That stupid omega was just begging to get bred. Maybe not verbally but his body’s wants were clear as day.
So Kaigaku had begun to give in, at least a little. Instead of coming onto Zenitsu’s torso he had started to come onto the omega’s wanton cunt, covering it in come as it’s little hole twitched desperately. And it had been enough for some time. But it wasn’t anymore and Kaigaku knew that soon he would lose this battle against his biology and fuck Zenitsu pregnant. He was already at the point where he put the tip of his dick snug against Zenitsu’s entrance when he came so he wasn’t penetrating (yet) but his come still spilled inside. It left him wanting it all more often than not and the longer it went on Kaigaku couldn’t remember why it was such a bad idea to just knot the omega and get over with it. (Their master probably would kill him if he knew that he had been forcing himself on his golden student and got him pregnant for sure)
Kaigaku groaned at the back of his throat as he came against Zenitsu’s entrance as he had so often before and continued to rub more of the come all over Zenitsu’s cunt with the tip of his dick. He loved it when the omega was just covered in it. Zenitsu, as usual, let him do as he pleased as he lay beneath him twitching, unsatisfied and crying.
Before Kaigaku had revelled the fact that he could use Zenitsu’s body to get off and leave the omega high and dry, but recently his inner alpha had been yelling at him that he was wasting a perfectly good omega and that he should rather paint his womb with his come than his cunt. Kaigaku sighed. Maybe he really should just get over with it. And maybe he should just claim Zenitsu while he was at it. He knew this is where they were heading. He wouldn’t be able to hold himself in check much longer and he wouldn’t be able to stop himself from trying to get off of Zenitsu’s body. (Also their master surely wouldn’t kill his golden student’s mate and leave him all sad, right?)
Kaigaku sighed again and leant down to brush away Zenitsu’s tears, still rubbing his dick against the omega’s cunt. He didn’t seem to be getting soft anytime soon. Maybe today really was the day.
“Hey crybaby, do you really want me to fuck you for real that much that you can’t stop crying?”, he asked Zenitsu with a smug grin on his face and nudged the tip of his dick against his entrance once more. Zenitsu’s eyes grew wide as a hot red flush crept over his face. Shamefully he bit his lip and looked off to the side and Kaigaku let out a laugh.
“Well if that’s how it is, how could I make you wait any longer?”, he asked as he pushed a little harder against Zenitsu’s entrance, the head of his dick almost slipping in making the omega shake even harder beneath him. What a sight to behold, he never could get enough of the omega#s bodily reactions to him.
He toyed with Zenistu for a little longer before he finally gave in and with one quick and hard thrust he pushed all the way inside, making the oversensitive and pent up omega come instantly. Zenistu threw his head back in a silent scream as his torso shuddered and lifted up from the ground he was lieing on. Kaigaku couldn’t help but marvel at the expression of pure ecstasy on the omega’s face. He really had been cruel not penetrating him sooner.
Kaigaku didn’t move as Zenitsu spasmed around him, his body trying to milk his not yet formed knot, as he waited for the omega’s orgasm to die down again. He wanted to draw this out as long as he could, he had come so often because of Zenistu’s body, yet given him only one orgasm so far. Now was the time to change that. Also he could use it to try out some of the poses he’d been fantasising about for weeks now. Taking the omega in missionary position only was boring.
Once Zenistu’s shuddering had calmed down and his breathing wasn’t as hard Kaigaku pulled out again, making the omega whine. It didn’t last for long, though. Kaigaku got up quickly and pulled Zenitsu up on shaky legs. Then he turned him around so they were now back to front and brought his right hand down to toy with the omega’s sensitive little dick as he ground his dick against those wet folds once more. Zenitsu’s legs were shaking and it was mostly Kaigaku’s strength that was holding his body upright and the alpha loved it.
Kaigaku teased the poor omega for some time until he felt like another orgasm was building up in him and just then he pushed inside of the omega’s wet cunt again, bringing him over the edge once more, this time making him squirt in the process. Kaigaku laughed as the omega’s body ground itself back onto his dick, desperately trying to get more of it inside as Zenitsu continued wetting the ground. This was amazing. The omega’s body was just so sensitive and ready to get fucked but Kaigaku wasn’t going to give in completely just yet so he took his hands off of Zenitsu’s hips who immediately sank down to the floor as he wasn’t able to hold himself up on his shaky legs on his own.
Kaigaku marveled at his work once more. He had only penetrated the omega yet, not even fucked hom for real, but he was already kneeling on the floor in his own fluid after having come two times already, clawing at the wall he was leaning against and whining.
Kaigaku crouched down behind the omega slowly and took one of his asscheeks in his hand before pulling at it lightly to expose that wet cunt better. Then he brought the other down as well and traced his fingers over Zenitsu’s wet folds.
“You really enjoy being impaled on my cock, don’t you?”, he asked as he dipped his teasing fingers in the omega’s clenching hole, “Now imagine how good you would feel if I would actually fuck you?”
Those dirty words had an immediate effect. The omega clenched down on his fingers hard and let out a wanton moan. Kaigaku started trusting his fingers in and out of the wet heat a few times to stoke the fire and then he heard it: a quiet but pleading “Please breed me”. That was all it took for Kaigaku to finally lose the rest of his composure. He pulled his fingers out of the omega and quickly lined himself up with the omega’s hungry cunt before he pushed back inside again, this time starting a fast but deep rhythm.
And just like that the omega was spiraling once more. He was still so sensitive and unsatisfied after his orgasms since his alpha didn’t give him the knot he so desired and this time he was actually getting fucked and not only penetrated. Kaigaku smirked and mouthed at the back of his neck. He would make Zenitsu beg for his knot before he would give it to him but for now he wanted to hear his voice.
“Don’t stifle your voice baby”, he murmured into Zenitsu’s ear, “Your alpha wants to hear you.”
Zenitsu let out another wanton moan at that but caught himself again.
“But Ji-chan will hear us”, he let out between heavy breaths. Kaigaku only snorted.
“Let him hear how good I fuck you. He’ll know once you walk out of this room with my mark on you anyways. Why not let him enjoy the show?”
Not waiting for a reply Kaigaku upped the speed of his thrusts and pulled Zenitsu’s hips up to meet them. And just like that he had the omega whining and moaning beneath him, if he wanted to or not. Kaigaku also couldn’t help his own noises leaving his throat. Fucking into that velvet heat felt just so good he couldn’t help himself. And it seemed like Zenitsu liked hearing him because every single one of his noises was answered by a louder one of Zenitsu’s.
Like this Kaigaku knew the both of them wouldn’t last much longer and Zenitsu hadn’t begged for his knot yet. So with all of his will he nearly completely stopped his thrusts, making Zenitsu cry out in fear. Fear of not getting knotted and being left high and dry once again. The omega was crying again and babbling something nearly incoherent as Kaigaku ground his dick into the omega’s hole slowly, stopping just short of pushing his forming knot inside. When Zenitsu tried to push back he just held his hips steady with his big hands, making it unable for him to move.
Kaigaku nipped at Zenitsu’s scent gland.
“Tell me to knot and claim you and I will.”, he whispered, “Or do you want me to leave you again?”
The omega shook his head frantically.
“No, no, no, don’t leave!”, he nearly wailed, “Knot me! Breed me! Claim me! Make me yours!”, he shouted so loudly that their master surely would’ve heard it. Kaigaku smirked, this was exactly what he wanted. Zenitsu really was such a good omega for him. And just as he wished Kaigaku bit down on the omega’s scent gland hard and finally pushed into that wet heat one last time before his knot locked inside and both of them came hard. Kaigaku came so hard he nearly didn’t hear Zenitsu’s screams over the ringing in his ear.
It took some time before Kaigaku caught his breath again and he could marvel at his work. Zenitsu was leaning against the wall, Kaigaku’s mark red and fresh on his neck, eyes rolled back in his head, his cunt milking every drop of come from Kaigaku’s body as it spasmed around him. Kaigaku groaned contently as he released inside of the omega. This was how it should’ve been in the beginning, he really can’t understand how it took him so long to finally do this.
Kaigaku carefully lifted the omega off of the wall and put his head against his shoulder and then laid them down for a more comfortable position for the both of them. When he looked back up he couldn’t help but laugh. Not only had his omega left scratch marks on the wall but there was also a big wet patch that could only have been left there by the omega’s drool. What a naughty boy. It seemed like he would have to punish him later. He couldn’t wait