Flat
Tummy

A little
boy walks into his parents' room to see his mom on top
of his dad bouncing up and down. The mom sees her son
and quickly dismounts, worried about what her son has
seen. She dresses quickly and goes to find him.
The
son sees his mom and asks, "What were you and Dad
doing?"
The
mother replies "Well you know your dad has a big
tummy and sometimes I have to get on top of it to help
flatten it."
"You're
wasting your time," said the boy.
"Why
is that?" asked his mom, puzzled.
"Well
when you go shopping the lady next door comes over and
gets on her knees and blows it right back up."