Mickey Rourke played hardball Wednesday night with Donald Trump , insisting Melania has to be in it for the loot to sleep in the same bed with him.

It all went down with a casual game of catch on a Beverly Hills street. The friendly back-and-forth between Mickey and our photog turned into a vicious political rant, with Rourke digging deep into his vocab for every epithet -- including some homophobic ones -- he could hurl at the Prez candidate.