Pilates Booty workout using a stability ball. I designed this workout to help target the glutes and core. The stability ball is a great piece of equipment to have in your home gym. Pilates Booty Workout is for all levels so grab your Stability Ball and lets get busy. The Pilates Booty workout is taken from the classical mat and adapted it to the stability ball for more intensity. Pilates Booty Workout is great for people short on time.