When Young Woman Married an old Man

young man supposed to do he asked?”
The doctor replied: “The younger man will wave towel at your wife while you guys are intimate.”
So they found a young good looking guy who was willing to wave a towel at the old man’s wife, while he was trying to please her.
They tried over and over, but he still couldn’t please his wife.
After many tries his wife suggested to swap the mens roles. The old man wasn’t very happy about it, but agreed.
So the young guy got on his wife and they started having intercourse. The old man waved the towel at his wife and watched them.
After a minute his wife was finally pleased.
And the old guy told the young man: “This is how you’re supposed to wave the towel you fucking moron.”