With the baby sitter
A boy is home with his babysitter on a stormy night when the boy says
"Usually on a stormy night mommy lets me cuddle with her". The
babysitter responds with "OK". They are cuddling when the boy says
"Usually mommy lets me take a bath". The babysitter says "ok". The boy
is in the tub when he says "Usually mommy gets in with me". The
babysitter says "Really? ok". They are in the tub when the boy says
"Usually my mommy lets me touch her bellybutton" The babysitter says
"Really? ummmmm ok".
Then the babysitter says "Hey that wasn't my bellybutton!" The boy
says "That wasn't my finger either."