You can sculpt long, lean muscles and thin thighs like the world's top models with this workout program designed by Justin Gelband of ModelFIT. To perform this best thinner legs workout, you'll need a circular resistance band. If you don't have one, just tie the ends of a regular exercise band together so it forms a secure loop around your ankles. Here, watch Victoria's Secret model Alessandra Ambrosio demonstrate the workout along with editors from Shape.com, FitSugar.com, and Fashionista.com. Incorporate these exercises into your workout three times a week. For more workouts and advice from Alessandra and the other Victoria's Secret model, visit the VSX Sport Facebook page.