A Bet For Your Wife

An old couple celebrates their 87th wedding anniversary in a honeymoon  suite. All night long, the bellboy hears laughing and clapping sounds  from their room.

The next morning, he asks the old man how he can do it all night at his age.

The  husband replies, "First, I remove my clothes. Then, I lie down on the  bed face up. Then, my wife removes her clothes and  lifts up my penis  with one hand, and we make a bet. If it falls to left when she lets go, I  win; if it falls to right, she wins."

The bell boy asks, "Well, what if it doesn't fall?"

"Then we both win," says the old man.