[Mori likes this position, with Chuuya on his knees trapped between himself and the desk. It means he has even less control, and that he can't easily move around in any other way than he allows. Of course the fact that the man seems to like (or at least not mind) having his hair played with gives him more options in that vein.

A hand smoothed down through the other's hair to ensure that he could properly see his face, wanting to have a good view of his striking eyes as he looked up at him.]

Well the first thing I was thinking of was having you bent over my desk. I think you'd look very good like that, squirming around under me.