Dean is limp on the bed, hands curled loosely, mouth slightly open.

Which is probably not helping Castiel's little predicament.

Of course, the fact that Dean is similarly experiencing that particular normal, healthy, human male reaction probably isn't helping either, but he can't help it. It happens. Not a big deal. Not to Dean anyway. When he wakes up he'll head into the bathroom, take a shower, take care of business, and be back to business as usual.

That's when he wakes up, though. First, he's just going to sleepily shift and tighten his arms, pulling Cas--well, closer isn't really an option, is it?--Squeezing Cas more tightly.