(Firms butt and thighs)
Stand with feet together, toes forward, arms at sides. Inhale and raise arms overhead, palms facing each other. Exhale and sit back about 45 degrees, keeping knees behind toes and abs tight to support your back; gaze forward.
Make It Easier:
Do the move with feet hip-distance apart, hands on thighs, and bend only about 30 degrees.
Make It Harder:
After you sit back, lift heels off floor, balancing on balls of feet (knees will be in front of toes); gaze up at fingertips.