Knock Knock
As an ultimate test of his will power, a man decided to give up sex while he dieted to loose a stone.
Although not thrilled with the idea, his wife agreed to support him in this effort. The first few weeks weren't too difficult. Things got tougher during the next couple of weeks, so the wife wore her dowdiest nightclothes and chewed on garlic before going to bed.
The last couple of weeks were extremely tough on the husband, so the wife took to locking the bedroom door and forcing the husband to sleep on the couch.
The morning he found out he had lost a stone, a knock came on the wife's bedroom door.
"KNOCK! KNOCK!"
Husband: "Guess who it is?"
Wife: "I know who it is!"
Husband: "Guess what I want?"
Wife: "I know what you want!"
Husband: "Guess what I'm knocking with?"