well that would present a problem since two guys at once might be hard to beat up. you got the advantage since theyre occupied and not paying attention to you though. hit the upper guy in the neck real hard and he should be out. break up the party and slam the bottom guy.
Or you can keep your bed near a window, keep it open all the time, and when you walk in on them, dropkick the middle body and watch them all fly out to impending doom before they get a chance to uncork your girl.