Making Babies

Little Johnny is walking with his father in the park and they see two dogs locked in a sexual embrace. Little Johnny not understanding what the dogs are doing asks his father:

- Daddy, what are those two dogs doing?

To which the father replies:

- They are making a puppy!

Later that night Johnny wakes up and walks down the hall to his parents bedroom and catches his mother and father making love. Johnny asks his father:

- Daddy what are you and mommy doing?

To which the father replies:

- Johnny we are making you a little sister.

Johnny thinks for a few moments and responds:

- Well, daddy could you roll her over? I'd rather have a puppy!