Nobody has ever looked like natural, stop acting like you have amazing genetics because you took drugs.
Bullshit.
forillagorilla has it right. I've been around bodybuilding for decades and I've seen natural guys with very impressive physiques so it certainly is reasonable that he is/was totally naturally. None of them would make it to Mr. Olympia, but they would still be the best or one of the best built guys in the gym. And it is not necessarily a factor of genetics. It's a factor of hard, hard work.
This is a topic that infuriates me on this board. Whenever anyone posts that it's always drugs, and never natural, that tells me that person doesn't know jackshit about real bodybuilding.