The so-called diet book "The Ultimate Sex Diet" (True Courage) requires that lovers engage in sex to burn off the pounds. Author Kerry McCloskey says your partner becomes your nutritionist, psychologist and personal trainer.

There are sexual positions like the "Let's Get Crazy" position where the legs of the woman are on top of the man's shoulders. McCloskey says this one tones the man's arms and the woman's tummy.

Sex Diet Positions.

She designed and followed the diet and lost 23 pounds in six months.

McCloskey says the sex diet is meant for partners, but lonely lardos who can't find a mate can use other techniques like fantasizing about sex to reduce stress.

At the very worst, she says the diet can make a good pickup line: "I have a new sex diet and I need someone to help me out."