One night a little girl comes down the stairs and catches her
parents having sex on the couch.
The little girl asks, "What are you doing?"
Her parents, surprised, stammer "Oh... er... well we're just
making cupcakes honey don't worry just go back to sleep"
So the little girl goes back to sleep.
The next morning the girl walks up to her parents and asks them
if it's true that they were making cupcakes the night before.
"Of course sweetie" says the mother.
"Good" says the girl, "because I licked up all the frosting."