Bodybuilding is based on drug use. No drugs equals no sport. If they had Olympic standard drug testing the Mr. Olympia winner would weigh 200lbs. I know bodybuilding fans are also fans of bodybuilding drugs. They rationalize that every sport uses to justify why they use to look good in the club and beach. Think about the current champs. How would they look without steroids, growth hormone, insulin, anti estrogens, speed, thyroid, luteinizing hormone, speed, and spot oil injection. They would look like absolute crap.
Train natural and know when the steroid guy walks by it's a temporary look that will disappear without the drugs. The natural physique will be with you for life. On top of it you will be increasing your health and not decreasing it.