angelswatchingover reblogged your photoset and added:
Cas having to witness this is revenge for 10 years of Sam having to deal with his and Dean’s UST.
Although there was plenty of UST in the episode I would Not say that it was between Dean and Castiel
(Cas to Sam afterwards explaining what happened: And then you growled. Sam: I growled? Cas: *expressively* Rawr. *pause* Like a, a, like quite a small lion. Sam: Oh my god. Cas: Is this something you habitually do with your romantic partners? Sam: No, no. God. No. Haha. Cas: *sigh* Ah, well.)














