Just a FYI:
I'm not familiar with the show's personalities, but judging from the pics you posted, Ronnie's physique is not that impressive at all to me...I've maintained a more muscular and less fatty physique WITHOUT steroids...also, his pic shows him oiled up, which maximizes definition...also, his legs aren't pictured...
I'd say in that pic that Ronnie's % BF is around 15...I'm 39 years old and currently not even cycling...and I still look better than he does...my abs are leaner and more defined.
So he does have fat on him...considerable fat, actually.