I'd Rather Have a Puppy
The little boy asks his father, “Daddy, what are they doing?”
The father says, “Making a puppy.” So they walk on and go home.
A few days later, the little boy walks in on his parents having sex. The little boy says, “Daddy, what are you doing?”
The father replies, “Making a baby.”
The little boy says, “Well, flip her around! I'd rather have a puppy.”