A year 3 teacher decides to teach sex ed to her class.
She starts out by drawing a penis on the chalk board and asks the class, "Does anyone know what this is?"
Little Johnny jumps up and says, "Yes, my dad has 2 of them!"
"Are you sure about that Johnny?" asks the teacher, somewhat stunned.
And little Johnny says, "Yep, he uses a small skinny one to go to the bathroom, and a big long one to brush the babysitter's teeth."