(Get more legs-sculpting workouts from Women’s Health’s Look Better Naked DVD.)
How to: Sit with your legs extended on the floor in front of you, each heel on a disc, palms on the floor beside hips. Lift hips. Slide your feet forward as you raise hips until you’re in a reverse plank, with your body aligned from shoulders to heels. Reverse the motion, sliding feet back until you’re in a pike position. Repeat for one minute.