Oh, chubby thighs!!! That is my concern too!!! I've always had chubby thighs, and of course they just got bigger while I gained weight. We all carry weight differently and its definitely where my body likes to put it!
I can't speak 100% for you, cause we all react differently, but if you loose a significant amount of weight, unless you have some medical problem that prevents it, it will eventually dissapear a bit from your thighs. They will get smaller... Maybe at a slower rate than other parts of you, but it WILL happen!
I started at 194 and I'm currently at 153. I still have chubby thighs, and I don't feel like I've lost any weight in there but I know I have because my clothes are looser around there. I still have a ways to go to a healthy goal, but it is possible!!! Yay!!! I also make sure, cause I'm extra sensitive about my thighs, to do some leg exercises for them.
So welcome and good luck! So glad you're noticing and making a change now, wish I had not denied my weight and waited. You'll do great