I'm looking for a specific alpha/beta/omega verse fic where Castiel was biologically omega but identified as an alpha. But I would also like any abo destiel fics dealing with trans issues.
One really good example of this type of story is Bare Your Throat and Have Me by HigherMagic. Summary: Castiel and Dean have only been mated for a few months, but Dean knows how this goes by now. http://highermagic.livejournal.com/tag/creature%3A%20werewolves