Paradise

A five year old boy asks his father, “Dad what’s between mom’s legs?”
“Paradise,” replies the father not knowing what to say to a five year old.
“And what’s between your legs, dad?” continues the little boy.
The father replies, “A key to the paradise, son.”
Little boy pauses for a moment, giving it some thought, and finally says, “Daddy, I think you need to change the locks. The neighbor has a duplicate key.”