[Grimmjow's moan joins Ichigo's as he moves, filling Ichigo with every last inch of his cock.]

Fucking shit, you're tight.

[It made so much sense now, why Aizen wanted to do this even with him. He leans down, gives Ichigo's shoulder a firm bite -- not hard enough to leave a mark, but hard enough to be painful.

And then he starts moving, jerking his hips a few times and trying to figure out what feels best.]