Superman and one of his superhero friends are flying around Metropolis one day, looking for trouble like they usually do. Seeing no crime, Superman makes the suggestion that the two fly down to the beach to see what is going on. His friend, being bored, happily agrees.
As the two fly along the beach, they spot Wonder Woman, "spread eagle" on the beach. Superman's friend is simply amazed by what he is seeing. Superman, seeing his friend's astonishment and looking to impress him even further, proclaims, "I'll bet you that I can fly down there, screw her and fly back before she even realizes that I'm doing it." His friend, eyes still fixed on the naked beauty, looks at Superman and just starts laughing. "I'd like to see that...you're on."
So Superman flies down, bam-bam-bam, flies back and says, "See, I told you I could." His friend, obviously impressed, forks over the . Just then, Wonder Woman says, "What the hell was that!?"
And the invisible man replies back, "I don't know, but my asshole hurts like hell!"