Im ngl, it's kinda gross imo. It's really wierd how the most popular games are about people fucking their moms or sisters. I'm not judging, im just curious as to why it's so huge.
Because it's hot.
But really though I think it's popular because everyone nowadays are just degenerates. Think about it, new technology has made it easier than ever to find porn and to jerk off without getting caught. Before the internet, smart phones, laptops, and computers it was a lot harder to find porn and jerk off without getting caught. Nowadays with smartphones you can jerk off whenever you want and you can do it wherever you want with much lower chances of someone walking in on you so people are jerking off and watching porn way more than they used too.
The more you jerk off and watch porn, the porn you usually watch becomes less interesting. You start getting less interested in the porn you usually watch and start becoming interested in more taboo things, and people turn into degenerates. Now I think this is where it's important to make a distinction, not everyone is a natural degenerate. Natural degenerates are people not into vanilla shit (and when I say vanilla I mean a girl and a guy having normal looking vaginal, anal, oral, etc. sex). Natural degenerates into shit like bestiality, BDSM, and other non-vanilla shit that has been around for a long time but are not becoming more popular really because it's not vanilla sex and only natural degenerates are into that stuff.
Then you have artificial degenerates, the people that for the most part are into vanilla and normal shit. They like seeing a pee pee go in and out of vagina. But the more and more they watch random whores on pornhub and spankbang the more boring those random whores get, and since they aren't natural degenerates they really aren't into non-vanilla shit and aren't going to start getting into non-vanilla sex like BDSM or bestiality. Since they still really only want to watch vanilla sex, they become interested in vanilla sex with an added taboo, like incest, just a guy and a girl having what looks like vanilla sex but with the added taboo of being family.
Now obviously this doesn't hold true for everybody, but I think it's why incest is so popular nowadays, it's just vanilla sex with an added taboo that makes for more interesting porn for degenerates like me who probably spend too much time watching porn and masturbating. It's also why you see other things like cuck shit and interracial shit more popular today too, although I'm not into that. You have all these fetishes that consist of vanilla sex with some added taboo way more popular than they used too because everyone is turning into artificial degenerates from too much porn and jerking off.
Thanks for reading my autistic essay on incest porn, time for me to go to bed.