text: my leg muscle? ok, i'm naturally pretty thin and have normal sized legs. however i used to have sorta chubby,kinda jiggling legs. i started working out on my legs 1week ago because i wanted to increase the size. i've noticed today my legs have less fat and more muscle in them but they have decreased in size! they have became more thin, and i was wondering that is it because my body is trying to get rid of all the fat in my legs before it starts building muscle? should i continue to work out, and if so will it eventully make my legs larger and thicker in muscle? i would compare this to a stomach. from personal experience i do a lot of crunches but i still have a somewhat beer belly. the muscle embedded inside the fat which the fat is much bigger and on top. so when you burn the fat for energy/sugar it just goes away and the muscle there 'comes out.' anerobic exercise will def increase size of muscle :) this answer is prob very vague and disorganized but i believe the body works the same way all around.