For a wow booty and toned thighs, you need one simple slimmer: the squat. Try these supercharged versions and you’ll love hanging out in your bikini. Seriously.

“The squat is the best exercise for a sexy lower body because it targets the glutes and quads better than many other moves,” says Dianne Sykes Scope, an exercise physiologist in East Rockaway, New York. First, ace the basic version (shown here), then do the variations below, which are guaranteed to banish boredom and deliver results.

Your coach Kim Lyons, celeb trainer and coauthor of Your Body, Your Life, designed these firm-afiers—tough but worth it.

The plan Mix and match. Try three sets of 12 reps of a few moves on nonconsecutive days, then do the remainders the week after. Bangin’ butt and thighs to follow!

MASTER THE BASIC SQUAT

OPEN UP Place hands behind head. Lift chest, and draw shoulders back and down.

GET GROUNDED Position feet shoulder-width apart and slightly turned out with your weight on heels. You should be able to wiggle toes. 

GO LOW Drive butt back (as though sitting on a chair), keeping thighs parallel to floor and knees over toes.

STAY IN LINE Keep a neutral spine without arching your back; engage your stomach.

TIP-TOP TONER

works butt, thighs, calves
Stand with feet wider than shoulder-width apart, toes out, hands on hips. Squat until thighs are parallel to floor, then lift both heels (as shown). Lower heels for 1 rep. Repeat.

REAR RAISER

works butt, thighs
With feet shoulder-width apart, squat all the way down, fingertips on floor slightly in front of feet. Keeping fingertips on floor, lift hips, extending butt toward ceiling with knees slightly bent (as shown). Return to start for 1 rep. Repeat.

SOCCER SCULPTOR

works butt, thighs
Stand with feet shoulder-width apart, hands on hips. Squat, then stand and forcefully bring right leg across and in front of body, leading with heel, as if kicking a ball, left arm swinging in front, right arm behind (as shown). Return to start. Switch sides to complete 1 rep. Repeat.

BICYCLE BUFFER

works butt, thighs, abs, obliques 
Stand with feet shoulder-width apart, hands behind head. Squat, then stand, lifting left knee across body (as shown) toward right elbow at center. Return to start. Switch sides to complete 1 rep. Repeat. 

GET-LEAN LIFT

works butt, legs, shoulders, back, abs 
Stand with feet hip-width apart. Squat deeply, extending arms behind torso. Stand, then raise left leg and lower chest until parallel to floor, extending arms forward (as shown). Hold for 1 count, then return to start. Switch sides to complete 1 rep. Repeat.

WALL WHITTLER

works butt, thighs
Squat with back to wall, feet together, thighs parallel to floor, hands on hips. Maintain back and butt contact with wall as you lift left knee toward chest (as shown). Return to start. Switch leg to complete 1 rep. Repeat.

Give your rear end some extra love with this number-one anticellulite move at Self.com.