Although Castiel was back with Dean, Dean had already a buddy to make a duo: Benny. Benny was a Vampire, but he helped Dean and gained his trust, nor being called "buddy" by him.. Eve if there was no blood connection attaching them.

It has been a rough day for the three of them, some Leviathans tried to take Castiel away, they were attacked by some vampires and Dean almost lost an eye thanks to a werewolf.. How great. While Dean rested, a.k.a slept against a tree, Benny and Cass maintained the guard up.. And well, Benny didn't truly like Castiel, and he was obviously just acting up for Dean.. Because he loved him. Benny leaned against the tree while Castiel was sat down besides Dean.. Quite close.