A boy is writing a paper on childbirth and asks his parents, "How was I born?"
His mother awkwardly answers, "The stork brought you."
"Oh," says the boy. "Well, how were you and Daddy born?"
"Oh, the stork brought us, too, and Grandpa and Grandma."
The boy begins his paper, "This report has been very difficult to write due to the fact that there hasn't been a natural childbirth in my family for three generations."