For a wow booty and toned thighs, you need one simple slimmer: the squat.

Your coach:Kim Lyons, celeb trainer and coauthor ofYour Body, Your Life.

The plan:Mix and match.

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Bangin' butt and thighs to follow!

Watch the videoto get step-by-step instructions and tips.

The Perfect Squat

First let’s learn how to perfect your form with these tips from Kim.

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Get grounded:Position feet shoulder-width apart and slightly turned out with your weight on heels.

You should be able to wiggle toes.

Open up:Place hands behind head.

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Lift chest, and draw shoulders back and down.

Stay in line:Keep a neutral spine without arching your back; engage your stomach.

Squat until thighs are parallel to floor, then lift both heels (as shown).

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Lower heels for 1 rep. Repeat.

Return to start for 1 rep. Repeat.

works butt, thighs

Soccer Sculptor

Stand with feet shoulder-width apart, hands on hips.

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Switch sides to complete 1 rep. Repeat.

Bicycle Buffer

Stand with feet shoulder-width apart, hands behind head.

Squat, then stand, lifting left knee across body (as shown) toward right elbow at center.

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Switch sides to complete 1 rep. Repeat.

works butt, thighs, abs, obliques

Get-Lean Lift

Stand with feet hip-width apart.

Squat deeply, extending arms behind torso.

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Hold for 1 count, then return to start.

Switch sides to complete 1 rep. Repeat.

Maintain back and butt contact with wall as you lift left knee toward chest (as shown).

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Switch leg to complete 1 rep. Repeat.