Where Babies and Other Things Come From

A mother is explaining where babies come from to her young son.
“Son a man has a penis, and a women has a vagina,” she began. “Put the penis in the vagina and you are making love. That’s how you make babies.”
The son says, “I get that part, Mom, but I was walking past your bedroom door the other night and dad’s penis was in your mouth. What does that make?”
“Well son,” the mother says, “that makes jewelry.”