Little Johnny wakes up several nights in a row when he hears a thumping sound coming from his parent's room.
Finally, one morning he says to his mom, "Mommy, every night I hear you and daddy making noises and when I look in your bedroom you`re bouncing up and down on him."
His mom is taken by surprise and says, "Oh...well...ah...well, I`m bouncing on his stomach because he`s fat and that makes him thin again." The boy responds, "That won`t work!" His mom says, "Why not?" The boy replies, "Because the lady next door comes by after you leave for work each day and blows him back up!
