Hip muscles (glutes) are the strongest muscles of your lower body, which balances your legs and extend the hip and pull the leg behind the body. By developing your ass-ets, you can look good and improve your speed and strength. This winter workout for your hip flexors, so that when you will be taking off the piles of clothes in summer your Ass-ets will fit in that skinny jeans you have your eyes on. Get ready for compliments in the summers with these very effective exercises for a toned pelvic Girdle.