I personally find non-con to be repulsive and immoral... when a woman is on the receiving end. I know it's hypocritical, but I can't help it if I want to be held down and subsequently traumatised for life by an adorable yandere high school girl.
The thing I like about hentai is that it shows more story than porn and a lot more interesting.
You don't see rape in porn but in hentai. However, I like sex when its mutual. I don't like evil and ugly things like rape because you'd have to justify rape between males in yaoi.
Girls don't 'like' being raped and forcing love or other on someone ruins the point of sex, despite the fact that rape can still be quite stimulating, but it's sex nevertheless.
Sex is beautiful but not when someone is forced. If you had a loved one how would you feel if that person was raped or taken away from you. that shit ain't funny and not very fappable, period.
OK. I enjoy both but only if it is well animated and played out well. That means I like to see clothes coming off. Stripping is just part of the show.
With Rape though, there comes certain boundaries.
1) Tentacle Rape is awesome, in fact there never seems to be an abundance of it anymore. Tentacle/Demon Rape is justified because that is just the nature of the beast trying to molest the girl. Maybe they're saying men are demons?
2) NTR is a no-no. Yeah I'm a guy and maybe I'm insensitive, but when a girl has a good boyfriend/husband and they are raped by some *insert Expletive* generally they don't stop resisting and suddenly just want to have sex with the guy. And the guy who gets cheated on never gets justice.
3) The less blood the better. We don't need to see girls getting torn to shreds by gigantically large *choice word* or see them so violently raped all that comes out of them is blood. A Virgin's Blood is the exception if there isn't a large amount of it.
Consensual sex is good too, I like it when the girl is trying to do the seduction as well.
Depends on my mood. Most of the time I prefer them to be raped, mind-breaked even. However, if the art & story are good, and the sex is hot, then I like.