That’s a better workout lolmen burned 101 calories (4.2 calories per minute) on average during the 24-minute session. Women burned 69 calories (3.1 calories per minute), just from sex. ... and masturbation, energy expenditure during sexual activity was 101 kCal in men and 69.1 kCal in women. Comparing it to a workout of moderate intensity for 30 minutes, it came out to be 276 kCal in men and 213 kCal in women.