Thirty minutes of sex burns 85 calories or more. It may not sound
like much but that adds up. So 42 half-hour sessions will burn 3,570
calories which is way more than enough to lose a pound. Doubling that up you could drop
that pound in 21 hour-long sessions. Sex takes both physical & psychological work. A lot calories are burned during intensity. Also after all that working out you will surely get a great nights sleep.