There was a small boy who was put to bed by his parents. The boy had a nightmare, and got out of bed to go to his parents room.
When he got there, he saw mommy bouncing up and down on daddy. When his dad noticed him in the doorway, the kid ran away.
The mother got off and got dressed quickly, and went to the boy's room. He was in his bed, and he asked, "Mommy, what were you doing to daddy?"
The mother replied, "Well, your father has noticed his belly getting bigger, and I was just trying to flatten his tummy for him by bouncing on it."
"Oh, that's what you were doing. But you're wasting your time mommy." The boy said.
"Oh, and why is that?" The mom asked.
"Because everyday when you leave for work, the neighbor lady comes over, gets on her knees and blows it right back up again.