The therapist listens to their story and makes the following suggestion;
"Hire a strapping young man and while the two of you are making love have the young man wave a towel over you, as though he is fanning you both. Make sure he is totally naked and she can see his manhood as he fans you both with the towel. That will help your wife fantasize, and should bring on a full-blown orgasm."
They go home and follow the therapist's advice. They hire a handsome young man and he strips off and enthusiastically waves a towel over them both as they make love. But it doesn't help and still the wife is unsatisfied and frustrated.
Perplexed, they go back to the therapist "Okay" he says, "let's try it reversed. Have the young man make love to your wife and you wave the towel over them."
Once again, they follow the advice. The young man gets into bed with the wife and the husband waves the towel. The hired hand really works with great enthusiasm and the wife soon has an enormous, room-shaking, screaming, orgasm.
Smiling, the husband drops the towel, taps the young man on the shoulder and says to him triumphantly....
Spoiler:
towel, son!!"
