JLo Sofia Vergara and 13 Other Celebs Spill Their Booty-Building Secrets

when Sam heughan's coach told the super fitness star that his gluteus maximus needed some exercise, you can only guess how he responded: of course, by improving his momentum. Jon's coach, James White, told men's health that the outsider star had to spend some extra time strengthening and exercising his gluteus muscles to adapt to his important role. To do this, the coach asked horn to spend a day cross training his legs, including squatting, dead body lifting, adjusting his work, and even using the booty band. What's the best part of the sport? These workouts are aimed at all the muscles in your lower body, not just the spoils.