I don't think he's referring to members who share a peek of their bung-hole, routemaster. It sounds more like a comment about those pics which display the ruptured sphincter/prolapsed colon option.

nothing like a good rose bud, that's a talented arse too RM *lix*

I've wondered all of these things myself. I can sort of understand why guys do it. It's the challenge of taking a huge item such as a fist or a two liter beverage bottle inside (yes, I've seen pictures of both). I think every guy who likes this sort of thing likes to think that he has the biggest ass hole. I once fisted a guy because he wanted me to. It did satisfy a certain intellectual curiousity I had about what it would be like to put my hand, wrist and most of my forearm up a guy's ass, but I didn't find it particularily erotic. While I was doing it he wanted me to keep telling him what a big ass hole he had. He was really proud of how big it was and of how much muscle control he had. After I took out my hand, I put my dick inside and he was surprisingly tight and he was a really good fuck. So I guess he had really developed the muscle control in his ass 'cause he could open it up to accommodate my arm almost to my elbow and then close it to be nice and tight around my dick.

This guy was in his twenties when I did this, but what's going to happen when he reaches middle age? Is he going to be so loose that he'll be constantly leaking in his underpants? Any fist fuckees who have reached mature years care to comment?