The prostitute had an appointment with her psychiatrist. When she entered at his office he asked her to lie on the couch. "If you don't mind," she said, "I've been working all night. Do you mind if I stand?" One intimate question led to another and the prostitute and her psychiatrist ended up on his couch in a very sexy session. When it was over they lay silent for a moment and then both said simultaneously, "That will be two hundred dollars, thank you."