You miss the point of Game of Thrones entirely. Its about how horrible war and rape are. Its about how much damage incest does to a society (especially Jaime and Cersei's murderous attempts to cover it up). Ned dies because he learns about the incest. Bran is almost killed because he sees the incest. Robb starts a war because his dad dies and his brother is almost killed. Incest in GOT world is definitely looked down on by almost all of the characters in the book - but somehow you come away its basically porn because the two characters doing it are hot? A dwarf fucks a lot of people? One bisexual Dornish Prince?
GoT aside. The incest fetish has little to do with impregnation (though some get off on incest even more due to inbreeding), but due to its perversion, its general 'wrongness', and to a large degree - the closeness that some family members form. Some of that closeness is in the form of friendship, some of it is in the form of antagonism. A brother and sister that resist sexual urges and get along for many years and then suddenly one night something snaps and they give in. A mother and son who are constantly at each other's throats for years, when suddenly one of them becomes vulnerable and in a momentary lapse of character, sexual frustration is released. Its an exciting fetish because society tells us this was the wrong decision. The siblings could have just talked through things, found other people to experience sexual release with. The son and mother could have worked out their differences or found other partners to satisfy their sexual urges. A father and daughter that repair a shitty relationship with the one tool they know has repaired other shitty relationships - sex.
A sister sister relationship would be no different than those above - even without the risk of impregnation. Perhaps the scenario is they love each other like other siblings do - but confuse their own sexual frustrations - not having girlfriends or boyfriends - perhaps due to lack of experience, or fear of rejection - and take a different path - sexual release with someone they know, and trust absolutely. Their sister.
Please note - I do agree that society's views on incest is a bit hypocritcal, and in fact its society making incest Taboo that gives it a draw to a lot of people. Additionally, some societal, and religious views on sex skew some people towards the incest fetish. In the HBO series Big Love, the eldest son of the main character falls for one of his father's wives. Its a totally believable scenario - an attractive woman who doesn't get the full attention of her husband (who has 2 other wives), a confused young man who is told its wrong to have sex outside of marriage, but has had sexual urges for years. Both have to keep their sexual desires outside of marriage secret - who better to trust or share than family? Well aside from resisting, of course. But again, a lapse in judgement. Giving in to that basic instinct.
Or as you say, two girls who are decent, intelligent, respectable members of society, who want to experience sex, but fear being branded a slut because they don't know if their first, second, or third boyfriends might be that right match for them - so they experiment in secret, with someone they trust, someone who will equally suffer if word gets out.
And of course, yeah. There are some perverts that just have to fuck everything - family included, but they are the most base and crude form of incest, a character that has been done to death with all these games here, and I could see that you might be sick of incest if this is the only incestuous characters you come across.
Hey man this was a very thoughtful reply. Thank you for taking the time to write such a long response.
I can agree with most of your thoughts, overall.
Honestly, I am indifferent to incest. It doesn't turn me on but it doesn't repulse me either. I do feel like it's considered taboo mainly because of historical reasons related to the genetic drawbacks of inbreeding, and therefore in some ways a little silly in this day and age, although it's true that its acceptance could maybe facilitate worse deeds like rape and sexual abuse of relatives. All of those are certainly awful IRL and not my cup of tea in games.
I'm sure that, as you said, some incest games are better and more interesting than others.... it's true of any kinds of games.... but honestly I just tend not to play them simply because the fetish is not attractive to me. I don't find it disgusting at all..... just not interesting. Without knowledge of the characters background i would actually argue it's no different from most mainstream porn.
I was, however, curious about the perception of susters' sexual interaction. I also seem to remember an American porn in which two real sisters, apparently, did interact sexually with dildos and stuff. In fact that clip is still available on legit porn sites. I wonder how they avoided censorship in that case.
Regarding GOT we'll have to agree to disagree a little.
My original comment is possibly a little harsh, true, but I think that sure, they show how bad incest can be.....but is that really the main purpose of the show?
Frankly, I doubt it.
The purpose of a show is to make money, and packing as much controversial stuff in a show as possible usually is a pretty good way to make money.
Aside from the incest the are plenty of scenes full of gratuitous nudity and violence, not to mention lengthy graphically detailed torture scenes. Is it really necessary to go to those lengths? Yes, if you're main purpose is to shock and titillating, not educate.
GOT is really sadist porn with sex excised or implied rather than shown.....
Of corse some extreme hentai games, which I do not support, might be even worse......but yeah, i still find some of the censorship of other hentai games a little silly if shows like GOT are allowed to exist. Its torture scenes are imo much more disturbing than any hentai game I enjoy since I don't play the extreme ones anyways.
Peace, take care