Unfortunately, thunder thighs won't just get rid of themselves. And women tend to accumulate fat in the lower body regions, including the belly, hips, and thighs (mostly for childbirth reasons), which makes losing flab in the thigh region even more challenging.
Enter vinyasa yoga. Also known as power yoga, it combines yoga poses with fast transitions and sometimes even cardio for a more intense workout.
If you want to stretch and tone your thighs, check out this video by yoga master Sadie Nardini to learn a series of vinyasa yoga thigh exercises that will get you lean and mean in weeks.