This man dies and goes to Hell. He is not very happy about this, so he goes to see the devil himself, to ask him if it is possible to go upstairs instead.

Well, the devil replies, you are scheduled to leave here in 1,000,000 years, but I have a special offer this week. If you can go to bed with my mother-in-law and keep her happy for 24 hours straight, you’ll get out in 100,000 years. If you can keep her happy for 48 hours straight, you’ll get out in 1000 years. If you last 72 hours, you are free to go.

The man thinks about this, and decides that it is worth a shot. He follows the devil until he comes to a room. Inside he sees the devil’s mother-in-law, who is the most sickening sight he ever saw. He can hardly see where her warts end and she begins. Fighting back nausea, he begins on his mission.

The devil himself keeps watch at the door. After 24 hours the man is still going strong, after 48 hours still no sight of him. The minute the 72 hours has elapsed the door opens and the man falls out, totally exhausted. Before the devil can say or do anything, the man rises, grabs the devil by the collar, and says, “Why you.. You.. You … This is unfair. While I was busy humping your mother-in-law, I noticed a hole in the wall. When I looked through it, I saw my worst enemy in bed with the most beautiful woman I ever saw. Why on earth is he getting special treatment?”

The devil looks at the man and says, “I am fair, there are also women who want to get out of Hell.”