Porn turnoffs:
1. Men - I don't need to see practical-joke-huge dongs, or these guys' ugly mugs, thanks.
2. Uncircumsized dicks - If I have to see it, please let it be as less repulsive as possible.
3. Fake tits - You know, the ones that don't move and are permenantly stuck in the chick's arm pits.
4. Completely bald pussies - I have no interest in prepubescent girls. Give me a nice landing strip please.
5. Fisting - Watching a girl with an arm up the cunt and an arm up the ass doesn't turn me on.
6. Pissing - Uhhhhhh... yeah, no thanks.
7. Scat - Pretty self-explanatory
8. Hemorrhoids - See #7
9. Pimples & Zits - See #8
10. Meat flaps - Otherwise known as huge inner pussy lips. 3" dangling meat curtains should be medically fixed, or find a different profession.
11. Skeletons - If I can see more bones than I can count, I recommend eating food.
12. Whales - The opposite of #10. I think 180 lbs. or so is my cut-off. It depends on heighth and build.
13. Pussy farts - Yeah, it happens. But it is a turnoff.
14. Ass tats - Hate 'em. Lower back, fine, but ass, nope.
15. Pierced twats - I don't get it.
16. Interview guys - Like britlover said, camera guys fondling the main attraction.
17. Talking - Men, women, it doesn't matter. Where's the duck tape?
18. Watching guys eat pussy - I don't mind doing it myself, but I hate watching other guys do it.
19. Stupid/funny facial expressions - If I bust out laughing, the mood is ruined.
I'm sure there's more.