Superman was bored. So he gave Batman a call.

Batman said Robin was ill and he had to look after him.

A little disappointed, Superman called Spiderman to see if he fancied a
few beers. Spiderman told him he had a date with Catwoman.
As a last resort, Superman flew over to Wonderwoman's apartment to see if
she was free. As he landed on her balcony, he looked through the window
and saw Wonderwoman naked on the bed with her legs open. Superman thought
to himself: 'I'm faster than a speeding bullet. I could be in there, have
sex, and be out again before she knew what was happening'. So Superman did
his Super Thing in a split second and flew off happily.

Meanwhile on the bed, Wonderwoman said: 'Did you hear something?'

'No,' said the Invisible Man, 'but my arse hurts like hell!'