Let me say this right now: I am not a 'clopper,' or for those uninitiated to the brony lingo, one who fantasizes about having...intimate... relationships with the ponies in MLP. I do not find them attractive in that way, and the use of sex in any literature is a massive personal sin. Unless it is used really well, I do not like it. Now, with that out of the way:
I have glanced into the void of clopfics. I took a look on a dare, as well as reading some MST's on Ponyriffs, and I have found some of the worst things ever composed. I would not care if some of these were edited to become completely original works, they need to be burned. Here are just some of the more...interesting ones.
I'm not gonna bother with ratings, as they are all very NSFW, and possibly NSFB. Gore, sex, you name it, we got it here. Here, let me say it again so there is absolutely no confusion:
THESE ARE ALL NOT SAFE FOR WORK. THESE ARE ALL NOT SAFE FOR SANE MINDS. DO NOT READ IF YOU ARE NOT READY TO SEE THINGS YOU PROBABLY SHOULD NOT.
Apple Slices A clopfic between Applejack, Big Mac, and Apple Bloom. Notable not only for how it throws the Apples OOC, but Applebloom's cutiemark. No, it does not have to do with sex. It has to do with...De-sexing, if you catch my drift. By the end of this, you will know far more about the process of castration then you ever, EVER, wanted to know.
120 Days of Blueblood. Have you ever heard of 120 days of Sodom? No? Neither did I when I read the MST of this. Well, part of the MST of this, as the fic is so NSFW that it made me too sick before I could finish. I went a piece at a time, but had to stop eventually. Apparently, 120 days of Sodom is an infamous french book that was never officially published, as the text follows people who engage in insane orgies, rape, and pedophilia. At the end of the intercourse, those who were raped are brutally murdered. Take that, make it with ponies, and you have quite possibly the worst thing ever made.
You know what? I was going to link more, but I cant bring myself to dispose more onto this board. I feel dirty enough as is. If you want more examples, just look at anything riffed by Fallen Prime, HERE or just about any fic riffed by anybody on the Ponyriffs site HERE.
Now, if you excuse me, I have to go and soak in some holy water and read some good books to detoxify myself from these...things.