[Action] "oh sweet, an impending orgasm! Just what I've always wanted!"

[Zack's fist in his hair hurts like little needlepricks across his scalp, and then his hand clamps down on his shoulder instead and Cloud almost misses it (though he's likely to have some fingerprint bruises there anyway). He lets himself pant, feeling a little needy because of it but beyond the point of caring. His awareness has long since narrowed to he, Zack, and maybe the bed occasionally when he needs a brace. Aerith could probably walk right in and Cloud wouldn't notice.

The hand stays on Zack's hip, gripping tightly to keep him from slipping away, and after a moment Cloud's other hand joins on the opposite hip to draw Zack against him as he thrusts.]