I'll admit it's interesting just to see what some people can create when challenged. Certain themes are beyond what I, in all my mighty perviness, dare not think of too hard.
On the other hand, the best of rule 34 (if such a thing actually exists) is so scattered, it's not really worth tracking down. You may get it into your head to see if Dot from Animaniacs can *insert something gratuitous and gratuitously absurd* and check the Internet, but it might take you the better part of an hour to confirm or deny such art has been made. Far, far from worth it. Nuts to that.
Finally, there's something to be said for desensitizing a person to the mundane. See my above statement about mighty perviness. I can barely get aroused by simple man/woman goodness, there HAS to be something odd or perverse about the scene, even if it's something as simple as woman/woman goodness.