Extreme porn that's commercially available… There's this Japanese video with two VERY attractive young men doing scat play from playing with it to eating it -- and not a little. I gagged while skipping through it. Oh, gawd, then there's blood sports.... Oh, a different kind of extreme is bukake, there's a porn out there where the guy gets, I think it was, 102 shots. THAT'S extreme.
TBPM would love to participate in a bukake.