hmm most disturbing porn of the internet would have to be the babyfuck meme going around. most disturbing of rule34 (since babyfuck I think is not rule34, since it started out as porn, and is not porn of something), would have to be, without a doubt, porn of...hmm... I guess it's a toss up between maggie simpson sucking on the dog, and the smurfs. Though, after a while, smurf porn stopped bugging me after a while.
a new much more disturbing rule34 is of inanimate objects
I reacted to Bart/Sideshow Bob the same way you did, it seems. Shame that most of those artists are indeed pretty good. I don't care if male characters I like are paired together ONLY if it makes sense and it doesn't feel gross. Pedophilia, bestiality and incest are instant
All of that stuff creeps me out as well. The Sideshow Bob and Bart thing. Ewwww. It's like uber-creepy. They are my two favorite characters, but I like that they are enemies. Plus, they are totally different ages, so I wouldn't know how this coupling would last. I also don't like the Bart and Lisa thing either.