I am currently 5'6" at 135lbs. I dont think I have enough fat to get the BBL I want with the greatest result. Now because I do work out, with weights, I believe a lot of my weight is muscle. Aside from going to a physician, how can I measure or figure out how much weight I need to gain in order to have a pristine result as opposed to just an enormous ass. By pristine I mean my wish pic photo...