The Hips, Waist, Thighs Workout: Dangerous Curves Ahead

1. Standing Oblique Flexion

You don't have to be Halle Berry to show off some seriously sexy curves -- but it helps to have her trainer. Enter Harley Pasternak, one of Hollywood's top fitness pros, with a workout plan designed to leave you streamlined and sculpted.

"The key is to concentrate as much on the back of your body -- which exercisers often ignore -- as the front," says Pasternak, author of 5-Factor Fitness (Putman, 2004). That means targeting the rear shoulders, upper back, hamstrings, glutes, and obliques, as well as the chest, quads, and abs.

You'll need light, medium, and heavy dumbbells (ranging from 5 to 15 pounds) and a bench. Do the moves three days a week, plus three to five bouts of short but intense cardio, and you'll be flaunting a firmer figure in six weeks!

• Stand with knees slightly bent, feet shoulder-width apart, holding medium or heavy dumbbells in each hand with weights at sides, elbows slightly bent, palms in and abs tight.
• Slowly slide dumbbell down outside of right thigh as far as you can, bending torso to right while keeping hips square.
• Hold for 2 seconds, then slowly draw weight back up thigh to start.
• Repeat all reps to right; switch sides.