Supernatural2005

Lucifer:
Castiel. I don't understand why you're fighting *me*, of all the angels.

Castiel:
You really have to ask?

Lucifer:
I rebelled, I was cast out, you rebelled, you were cast out. Almost all of Heaven wants to see me dead and if they succeed guess what? You're their new public enemy number one. We're on the same side, like it or not, so, why not just serve your own best interests which in this case just happen to be mine.

Castiel:
I'll die first.

Lucifer:
I suppose you will.