Popsugar Fitness Workouts Booty Gains Before and After These 9 Booty-Gain Before and Afters Are Serious Goals May 7, 2021 by Christina Stiehl View On One Page Photo 9 of 9 ADVERTISEMENT () Start Slideshow A post shared by LEEN PEETERS 🤸🏼♀️ (@leenpeet) on Apr 30, 2018 at 12:25am PDT Share This Link Copy ← Use Arrow Keys → 9 "Let that booty pop." It's amazing what can happen in a year. Leen Peeters showed her one-year transformation on Instagram, which included serious booty gains. Previous Next Start Slideshow WorkoutsThen And NowBooty Gains