Mostly, they don't function. Or Dean doesn't. He just stumbles through and hopes he doesn't screw things up irreparably.

He slouches on the edge of the bed, watching Cas slumped in the chair. It feels good to see him a little happier than he's been. Cas isn't exactly known for smiling, so when it happens, it lightens Dean's heart a little bit. Or a lot. He finds himself smiling, too.

"It's good having your around again."