Superman's Night  

One night, Superman was at his home bored.  He then decided to call
Batman and asked him if he wanted to go on the town.  Batman then
replied: "No, Superman!  I've gotta fight crime!"  Superman then called
Robin, and Robin's response was: "No I can't Superman!  I'm underage to
drink!"  Annoyed, Superman then called Green Lantern, and Green Lantern
said: "No, I can't, Superman.  I've gotta get my lanterns charged!"

Superman then decided to fly over to Wonderwoman's house.  He reached
her house and saw a light upstairs.  He flew up and saw Wonderwoman
lying on the bed naked.  Superman was excited as hell about this, and
thought: "Hmm...I bet that I can go in, fuck her, and then get out, and
all in warp speed!"  Superman then went in, had sex with her in warp
speed, and then got out.  Superman then flew home happy.

Inside the bedroom, meanwhile, Wonderwoman asked: "What the hell was
that?"
The Invisible Man, who was on top of her (and invisible, of course),
said:  "What the hell?  Did someone just fucked my ass?"