As Crowley's grip tightens in his hair, Castiel surprises himself with a moan, clutching tighter to Crowley. He's also interested in how it feels for Crowley to thrust against him, which is strangely erotic and -- he's sure if he thought about it enough -- arousing. He likes the desperation in Crowley's movements, and he strokes his fingers up Crowley's spine after he comes, taking a moment to memorize this. He'll want to think about it later.

Now he's not quite sure what they're supposed to do, so he stalls and kisses Crowley's jaw, gentler now, still mimicking what Crowley had done to him earlier. He'd liked the gentleness after his orgasm.

One thing he's very certain of is that he wants to do this again.

"This is definitely more enjoyable without our clothes."