Try this butt-blasting workout from Sara Fennell.
Reps: 12 reps each exercise
A two-part exercise, starting with glute bridges.
Lying on your back with your knees bent and feet flat on the floor, place the weight on your pelvic area.
Keeping your core tight, rise your hips up off the floor and thrust them as high into the air as you can, squeezing your butt at the top. Keep shoulders on the ground. Lower hips back down, but do not touch butt to the floor. That is one rep.
Perform one set of 12 reps, then immediately switch positions for Donkey Kicks.
Photo credit: Jamie Watling Photography