Slim thighs without building muscle?

Okay, so I have pretty firm thighs, like nice thighs, a little fat but they're nice yknow? BUT I'm wanting to slim them down, I'm afraid of leg exercises, lest they should make my thighs more muscular than lean. What can I do to accomplish this? I'm 140 pounds, and have a good, slim body build, because I'm tall, but I am apprehensive of losing a lot of weight, because my boobs are the only difference I see when I lose weight, and it makes me sad lol or is losing all over weight necessary to slim my thighs? thanks!
Slim thighs without building muscle?
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