Certainly you can...but generally most peoples body's are inclined to do one or the other, not lose fat and gain muscle at the same time. That's why most guys choose off season to bulk and precontest to diet/cut up. Other critical factors: age, RX program, genetics, workout variables, cardio, diet, lifestyle, etc. The better you become at dialing these things in (usually by trial and error-cuz everyone's different) the sooner you'll be able to master your ability to get whatever look you're striving for. Oh yeah, eat lots of pussy. I think that helps a lot.