A little boy walks into his parents' bedroom to find his mother
>>on top of
>> > his father, humping up and down. The mother spots her son and
>>dismounts as
>> > the boy leaves the room. Worried about what her son has seen,
>>the Mom
>> > quickly dresses and goes to find him in his bedroom. The son
>>asks, "What
>> > were you doing to Daddy, Mom?"
>> >
>> > The Mom replies, "Well, you know how Dad has a big tummy?" The
>>boy
>> > answers, "Yes he sure does."
>> > "Well, I have to get on it sometimes to help flatten it,"
>>explained Mom.
>> > The boy says, "You're just wasting your time, that will never
>>work."
>> > The Mom is confused, "Why not, son?"
>> > "Because whenever you go shopping, the lady across the street
>>comes
>> > over, gets down on her knees in the bedroom, and blows his tummy
>>back up!"