A fifth grade teacher is told she must teach sex education to her class. She decides to use a math technique to teach the subject, and thinks flash cards will work well.
The next day in class, she holds up the first flash card, a picture of a breast, and asks “Does anyone know what this is?”
Sandy responds, “I know, I know! It’s a picture of a breast and my Mommy has two of them!”
The teacher says, “Very good Sandy, you get a star.”
The teacher grabs the next card and holds it up. It’s a picture of a penis. She asks, “Does anyone know what this is?”
Little Tommy says, “I know, I know! It’s a penis and my Daddy has two of them!!”
The teacher says, “Well, Tommy, it is a penis, but your daddy can’t have two of them.”
Tommy says, “Yes he does! He’s got a little one that he pisses out of, and a great big one that he brushes the babysitter’s teeth with!”