Part of me wants to ask about squicks, but I won't, because that's a far more dangerous question and there will doubtlessly be some overlap with the kinks. Squicks sometimes feel much more personal than kinks - especially kinks of a generic plot type as opposed to, say, "biting" (or "bukkake").
I've been thinking about my squicks lately because some of them have eroded quite a lot.
I'm still mostly on the 'no' side when it comes to RPF. Not because I don't think anyone else should write it, just because I can't. And it's not really a 'I can only like things I can write', just more it makes me extremely uncomfortable. Except for that one time. You know. Behind the bikeshed.
Incest is still my major squick. I know it has a long tradition in literature, but I react badly to it.
I don't read rape fics, even by authors I trust - sometimes especially by authors I trust.
But apart from that, it's squicks that I think the majority share - scat, watersports, infantilism, necrophilia (okay, so, I may have had horrible thoughts whilst writing "Keep Me Hanging On", but I think my decision not to commit them to paper makes me still relatively well-adjusted.)