Hi everyone! Well I'm 19 going on 20 years old. I am 5 ft and weigh 101lbs. I need help toning my butt and thighs. I'm not fat actually fairly skinny and I dont want to lose weight that will make me look anorexic, I'm a model so I need to look fit. I have been doing a low carb diet(20 carbs or less) directed by my boyfriend. I have been doing exercises with the fitness ball and walking/run-walk. Am I going about this all wrong? I need some advice. Thanks