@kiyomi: First of all with the example girl you have posted, you're right. She doesn't have thunder thighs in that gallery. She has more like short and a little bit stubby legs. But the other example you have posted these are just fat thighs.
I think the best example the thread is about is the following girl:
http://www.frat-party-sluts.com/ftvgirls/sophia-sutra-public/13.jpg
Hope you contribute some good galleries as well. I'm really trying hard to find nice thighs!