I'm not one of the resident [words=http://www.mattersofsize.com/join-now.html]MOS[/words] adult entertainment scholars, but I think I've seen threads where it has been mentioned that Ramone, or whatever his name is, has discussed pumping before shoots. That, combined with natural size and the fisheye camera lens used in most 'gonzo' adult entertainment, creates a pretty startling visual effect. Also, the being rail skinny and average height helps. adult entertainment that's geared towards fetishizing huge penis size (which, interestingly, is absolutly marketed towards straight males) is naturally going to use any trick in the book to emphasize the central component.