Superman Was Flying Around One Night...

when he spotted Wonder Woman laying out on the roof of a tall building, butt naked and spread eagle. Superman flies down to his companion and starts going to town on unsuspecting Wonder Woman. He finishes his business as quick as a bullet and flies off at supersonic speed like nothing had happened. Wonder Woman looks around and says "What on earth was that?" A few moments later...

"I have no idea but my ass is killing me." The Invisible Man replies.