Well, the one that I nearly wrote was Bodie (from The Professionals)/Professor McGonagall, because Bodie (a) seemes to get a kick out of getting attention from women who disapprove of him and (b) needs a Domme in his life.

I still want to write James May/Crowley (Good Omens), but since I wouldn't be all that surprised if Aziraphale and James were seperated at birth I'm not sure how cracktastic the end result would actually be. But at least they have the shared Bentley!love.