Seriously. Virgins. Dean presses a kiss to Cas' temple, keeping up the...can he call it a massage? It isn't really.

"Easy. Don't hurt yourself."

Wow, this is actually really great. He's pretty sure he could watch Cas fall to pieces all the live-long day. It's a surprisingly nice view. So his jeans are really, incredibly uncomfortable at this point, but oh god, he can live with that.

Experimentally, he drags his nails down Cas' spine, just to see what kind of reaction that'll get.