All he does is make a sad chirp -agreement? Who really knows, but could be taken as that, sure-, even as he allows himself to be pet. Though gripping wet fur is far harder than it seems, given the amount of water it holds.

That said, all he really needs Kaiba to do is stand up. Preferably get out of the water, but like. For what he has planned?

He won't be picky. Well, unless Kaiba tries to pick him up; then it's just a clefairy deadweight.