system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5. I heard that you burn quite a few calories when you orgasm. Is this true? How or what is burning all those calories? If say someone started masturbating/having sex multiple times a day would they lose weight?
gpt
No, it is not true.  Sex itself can burn calories, but that's because of the moving around (physical activity), not due to orgasm.  If you have vigorous sex several times per day, it will burn calories, but it's unlikely to be enough to lose a significant amount of weight. 

As with all of these types of questions: the ONLY way to lose weight is to burn more calories than you consume.  Diets, pills, and supplements that claim to be able to boost your metabolism enough to cause you to lose more weight are lying.  Your weight is 85% what you eat, and about 15% your exercise.  It's quite possible to be thin and sedentary, and it's possible to have a lot of excess fat and still be very strong.