A little boy walks into his parents’ room to see his mom on top of his dad, bouncing up and down. The parents stop and his mom quickly dismounts, pulling the covers around her.
“What were you and Daddy goind, Mommy?” The little boy asked her.
“Well, your dad has a big tummy and sometimes I have to get on top of it to help flatten it,” she explained.
“You’re wasting your time,” says the boy, “When you go shopping, the lady next door gets on her knees and blows it back up”.