Tummy TroubleA little boy wakes up during the night and walks into his parents room, and see's his mother bouncing up and down on top of his father.
The parents stop and the mother quickly dismounts, pulling the covers around herself.
"What where you and daddy doing ?" the boy asks his mother,
"Well, your dad has a big tummy and sometimes I have to get on top of it, to help flatten it", she explains.
"You're wasting your time" says the boy
"When you go shopping,the lady next door gets on her knees and blows it right back up"