You don't say whether you are overweight or not. I lost 25 lbs and gained some muscle in my legs over the past year of walking and biking. Since I had excess fat in my hips and legs, I have noticed the inner thighs has definitely slimmed down and there is a lot of space between them now not like before. I like that! :) The backs and the tops of my thighs definitely have more muscle than they used to, and my calves. ...Not that I look like an athlete or anything, far from it. :rolleyes: