How did I get here

A second grader  asked her mother, "Mum, how did I get here?"

The mom fully aware how young her daughter was replied "God sent you."

"Did God send you too?" asked the child.

"Yes dear," the mother replied.

"What about grandma and grandpa?" the child persisted.

"He sent them also," the mother said.

"Did he send their parents, too?" asked the child.

"Yes dear, he did," said the mom patiently.

"So you're telling me that there has no been NO SEX in this family for 200 years! No wonder everyone's so grumpy around here!"