A teenage girl came home from school and asks her mother, "Is
it true what Rita just told me?"
"What's that?" asks her mother.
"That babies come out of the same place where boys put their
penises?" said her daughter.
"Yes it is dear!" replies her mother, pleased that the
subject had finally come up and that she wouldn't have to explain it to her
"But then, when I have a baby," responded the teenager, "won't it knock
my teeth out?"