Derek stretches out and yawns, rolling onto his back so that Dean's hands can scratch along his chest and belly. Normally he would never do anything so cliche as demanding a belly rub, but hey, he's high.

He lets out a huff that sounds a bit like a laugh at Cas' bluntness, and then sniffs the air. The scent of Dean's vague arousal hits his nose and he lets out a grumble, leveling him with a look before deliberately moving his head from Dean's lap to his thigh instead, lest he get poked.