Popsugar Fitness Workouts Best Butt Exercises From Harley Pasternak He Shaped Kim Kardashian's Butt, and Now He's Going to Shape Yours June 13, 2016 by Dominique Michelle Astorino View On One Page Photo 1 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Skater Lunges Side skaters, also known as skater lunges, strengthen the glute meds while toning your buns, thighs, and core. How to do skater lunges Previous Next Start Slideshow WorkoutsCelebrity TrainersHarley PasternakButt WorkoutsButt Exercises