Thread by @popzkee

#Plantcest. KV omegaverse. Vash is an omega who can’t figure out why no alphas want to be around him or seem interested in touching him, not knowing his alpha brother marked him as his the minute he presented while Vash was asleep, cunt slicking sweetly around Knives’ fingers.

Knives manipulating him ‘you’re so needy, it’s off-putting’ and ‘Vash, stop being such a slut’ because even with the bond, he gets jealous enough to throw up every time Vash scents openly for other alphas to notice him, brushing his shoulder against theirs.

Vash /is/ needy, and he’s stupid, and he’s desperate. He wants everyone’s approval. It drives Knives insane to have to be around him everywhere to assert his dominance and bare his teeth when the rare alpha ignores his initial warnings.

And Knives could tell him the truth but he loves how excited Vash gets when he thinks he’s not going to get his cock again and does, when he’s been rejected more than a few times and he’s all sulky and sad, feeling so undesirable he’s willing to put anything in his mouth.

And sure Vash feels this insane attraction to Knives but that’s just - brotherly. Knives has always been there. He’s probably the strongest, hottest, best smelling alpha Vash has ever met, and Vash is a lonely (clearly unlikable omega) so of course, he wants Knives all the time.

It doesn’t help that Knives helps with his heats (because who else would? he’s like a deterrent for any alphas these days) which hit Vash ten times harder when Knives is around to smell him. It’s like his body goes into overdrive and wants to call for Nai when Vash is like this.

It definitely doesn’t help that getting fucked by his older brother makes so much sense to him in a way he can’t put into words. It’s the only time the emptiness subsides and he feels loved. Knives falls over his back and mauls his neck and Vash knows he feels the same.

So maybe Vash is being selfish when he turns in Knives’ arms after one of their couplings, watches him sleep soundly and knows he’s going to claim him despite the guilt eating at his belly.