Men are getting more than just a good night’s sleep out of the bedroom—turns out, they’re also torching more calories than previously thought. Along with the “orgasm gap,” there’s a calorie-burning gap too. Research shows that men typically burn around 101 calories during a romp, while women burn about 69. But don’t sweat it, ladies—Stanford Health’s sexpert, Professor Leah Millheiser, explains that it’s all about who’s taking the “active role.” If women are “on top,” they might just flip the script and burn more calories.

Whether your steamy session turns into a full-blown workout depends on a mix of position, duration, and location. According to a study by sex toy company Lelo, positions like “The Butter Churner” and “Standing” are some of the heavy hitters when it comes to calorie-burning. So, next time you’re in the mood, you might just want to consider how much of a workout you’re in for!