Unfortunely, you cannot target fat loss in specific areas of the body. As you lose fat, your genetics decide where it will come off, and how much. You can tone and tighten the mucles in the same area to try and make the area seem more firm, but certain areas tend to be quite stubborn.
For women, it can be nearly impossible to get rid of certain thigh and hip fat. Their bodies are designed to store that fat as fuel for pregnancy, etc... The body doesn't want to give it up all that easy. Men's gut fat is fairly easy to lose in comparison, but also carries a higher health risk. Fat thighs in women, almost carry no health risk when compared to men's fat stomachs.
So basically, you have to eat right and exercise. If the fat is going to come off your thighs and hips, it will come off, otherwise you have to be content with simply being healthier from eating healthier and exercising.
The smaller size is just like the large size, sooner or later there is no more left.