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 3 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 Reverse Lunges Lunging backward takes some stress out of the knee while toning the entire leg and lifting the booty. How to do reverse lunges Previous Next Start Slideshow WorkoutsCelebrity TrainersHarley PasternakButt WorkoutsButt Exercises