Cosmo's better sex workout: these exercises can lead to stronger orgasms. Do them five times a week to get in peak condition.(The Hot Issue)

You know working out gives you a nice booty, but did you know certain aerobic moves also improve the other kind of booty? "Crunches that target your lower abs strengthen your pelvic muscles, which contract during climax," explains urologist Jennifer R. Berman, director of the Berman Women's Wellness Center in Beverly Hills. "Fit pelvic muscles can result in more powerful orgasms." Another key area: "Toning your inner thighs indirectly tightens your vaginal walls," says gynecologist Hilda Hutcherson, author of Pleasure.

Try these sexercises designed by Jacquie Greaux, instructor of Better Sex Through Yoga. The more you practice, the faster you'll see (and feel) results.

Sexy Scissors

This maneuver tightens your tummy and legs, and it can speed up your turn-on time. "Exercise boosts your testosterone level," says Dr. Hutcherson, "which helps you get aroused faster when you're with your guy."

Lie on your back with your hands under your head and your feet flat on the floor. Raise and straighten your left leg 12 inches off the ground, then bring your left knee in toward your chest.

At the same time, reach your right elbow forward to meet your left knee. Straighten your leg again, and as you lower it, raise your right leg to meet your left elbow, (The leg moves are similar to riding a bike.) Do 16 elbow-to-knee crosses (8 on each side), then return to staring position.

The Lusty Lift