THE BOOTY BUILDER PLAN IS HERE AND DESIGNED TO WORK ARGUABLY THE MOST IMPORTANT MUSCLES IN THE BODY; THE GLUTES! WE ALSO TARGET THE HAMSTRINGS / QUADRICEPS / HIP FLEXORS ALL HELPING BUILD THAT CORE STRENGTH TOO! THIS ISNT JUST FOR THE GIRLS, GUYS NEED THIS PROGRAMME JUST AS BAD TO REALLY GET THAT TOTAL BODY STRENGTH.