A man goes to his doctor and says, "Doc, I think I have a sexual problem. I can't get excited when I'm with my wife."
The doctor tells him to come back the next day with his wife, which he does.
The doctor takes the couple into the examining room and asks the wife to undress. "Turn all the way around," he tells her. "Lie down, please. Uh-huh, I see. Ok, you may put your clothes back on."
The doctor takes the husband aside. "You're in perfect health," he telle the man. "Your wife didn't give me an erection either."