Dean liked Castiel's stubble. It was really soft and calming to feel. Obviously he didn't just go up and stroke his cheek because that's creepy. He left it until they were huddled up on the sofa watching crappy TV, Cas would close his eyes and attempt to sleep. Dean would take his chances to feel the short stubble.
Sometimes he wondered if he was being creepy.
Castiel sometimes wondered if Dean was mentally stable.
