Scat, Mind Control/ Hypnosis, Amputee (as in, all limbs severed, I'm okay if an arm/ leg is missing due to simply character design. But every single limb chopped off for gore porn, that's a nope.)
These three things I'm firmly against. What's wrong with Mind Control/ Hypnosis one might inquire? Nothing really, it just takes away the sense of accomplishment of corrupting the wife/ girlfriend into breaking and giving in to pleasure from cheating. I don't even see the appeal of mind control/ hypnosis.
But as for Scat, that's at the very tippy-top of my Black List. It isn't just because it's disgusting/ gross. Categorically, this would also include vomit, but I'm focusing specifically on scat just to make the point of my stance clear to you. Just like mind control/ hypnosis, I don't see the appeal in something so disgusting. How does it get you off? It makes no sense. If it makes no sense to understand how you can get off on it, then I'm gonna write it off, simple as that.