A 13 year-old boy comes home from school and his mum asks how his day was. He
replies, "I had sex with my teacher today." "Oh my god! You get to your room!
Wait till your father comes home!", says the mum.

A while later the father comes home and the mum says, "Go up to your son's
room and talk to him. He's been really bad today." Dad goes up to the son's
room and asks why mum is so mad. "I told her I had sex with my teacher today,"
replied the boy.

"Alright! That's my boy!", says Dad. "Ya know son, women just don't think like
men. But I'm proud of you. What are you now, about thirteen, right? Wow.
That's my son! Ya know what? I'm so proud of you I'm gonna take you out and
buy you that new shiny bike you've been wanting!"

So the dad and his son go out and buy the nicest, reddest, shiniest bike in
the whole town. "You gonna ride it home son?" asks Dad. The boy replied, "Nah,
my ass is still sore."