The 'finishing touch' comment was meant to drive home the point of fact that a natural bodybuilder could never look as muscularly impressive as a good, geared-up bodybuilder. I don't know who first made that remark on a bodybuilding forum, but that was the meaning.
I don't know who coined the phrase 'it's only gay if you want it to be', but I thought he was the first to say it here at GetBig. He's saying he wasn't the first, but until we can identify another, you'll be credited as the originator of that one, Bob.