[It's like something inside him kinda snaps painfully at the touch--at the kiss, despite himself and everything he'd been trying to tell himself to deal with being away from Fuuma. In the back of his mind, there's a thought that it's ridiculous how this is all it takes for him to crumble. Maybe to be expected too, though.]
[Quickly any semblance of thought gets figuratively stomped all over as Kamui leans up to kiss him back just as hard, unable to keep his body from shaking violently, so he grabs Fuuma's clothes in the front with his fists, dragging him even closer if that was possible, trying to ignore the rush of feelings.]