Little Johnny comes home from school one day. His mother asks "How was
school?" Little Johhny replies "I had sex for the first time today!"
Little Johnny's mother is infuriated. She tells Little Johnny to go to
his room and wait for his father to get home. Later, Little Johnny's
father comes to his room, sits down and says "Don't tell your mother but
congratulations my boy! Sex is great, isn't it?"
The next day, Little Johnny comes home and his father asks "Did you have
sex again today, Little Johnny?" Little Johnny replies "No, my ass still
hurts from yesterday."