I have this same problem, I ran a marathon last week in 3hrs 43 mins and still have huge thunder thighs- my waist is about a 32, but I have to buy 34inch trousers and jeans. Added to the fact that I have quite short legs for a guy of 6ft and I reallly look horrible in some clothes! I look better in shorts, but I live in Ireland so you can't wear them too long! I get really down about my body, I have some self esteem issues about it, but girls aren't a problem. Don't associate getting girls with you legs- just be confident and you should be ok. Also, in the short term, buy clothes that suit your bosy shape!