A little boy and his dad were walking down the street when they
saw two dogs having sex. 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 instead!