Laugh At Will

A small boy gets up in the middle of the night to go to the bathroom and passes his recently divorced mother's bedroom. He hears moaning and looks in her bedroom and sees her completely nude, rubbing herself all over and saying, "I need a man, I need a man...".
The small boy continues to the bathroom and then back to bed. This same thing happens several nights in a row, until one evening when he looks in her bedroom a man is making passionate love to his mother. The boy quickly runs back into his room, tears off all of his clothes, jumps into bed and starts rubbing himself all over, saying, "I need a bike, I need a bike..."