A boy comes home from his first day at junior high school. His mother asks, "What did you do in school today?"

"I learned how to multiply, and I had sex with my English teacher."

The mother, shocked, replied, "Go have a talk with your father!"

The father asked, "What happened in school today?"

The boy says, "I learned how to multiply, and I had sex with my English teacher."

The father beams. "What a milestone! You're really growing up! We should celebrate. I tell you what -- let's get an ice cream sundae, and then we'll go buy you that bike you've wanted and go for a bike ride together."

The boy says, "That sounds great, dad; but could we hold off on the ride? My ass is sore as hell!"