When I was at my most flexible I could lick past my balls to within about 3 inches of my asshole. I didn't rim myself due to a lack of trying, just a lack of natural flexibility damn it.
Check out RUBBERBOY's site--he claims he can kiss his own butt but alas no pics of that...would LOVE to see his video of that (he does sell a DVD on his website):
Here he is at a contortionist website:
I don't know who THIS guy is but he should make a self-rimming/self-suck video!!! http://www.limbermen.com/CHP/Hinternbeisser.jpg
Gets me hot even with his clothes on! I've looked at the pic magnified to 400% and it does not look like it has been altered. I think he could not only lick his ass but he could TONGUE FUCK himself!!!