Read More If you really want to know how much your personal sex 'regime' is burning off, scientists have created an online tool to measure the amount you shed when you get hot between the sheets. But, barring any physical limitations like illness or injury, you should definitely make friends with running, because it's a top calorie burner. Getty Some sex positions are better than others for feeling that burn, and varying your positions is a great, fun way to tone different muscle groups and keep limbs lean and flexible. I also recommend getting a massage table — it's better on your body, and standing to give a massage burns more calories. The study says that a man weighing pounds would, at 3 METs, expend approximately 3. Go longer Rationale follows that if you want to burn more calories, participate in sexual activity for a longer amount of time. Besides caloric expenditure, sex has plenty of other benefits that improve your health. The researchers also found that those who lasted the longest could burn more calories during sex than while running on a treadmill, burning calories compared to calories, respectively. Not surprisingly, 98 percent of participants felt that sex was more pleasant than treadmill exercise, while 81 percent reported a high level of personal pleasure. They participated in a moderate-intensity treadmill exercise for 30 minutes. Here we reveal how many calories a 10st 7lb woman burns during different sexual encounters. Most positions burn about as many calories as a light minute walk.