That and the Yuka path had some pretty harrowing stuff in them. The Kaori path had the best conversations. Kaho's path was meh. I liked Kyoko's path a lot and hers is what I would personally choose as canon. I had no idea what to make of the hidden path.
Still, one of the creepiest in my mind is Brother in Final Fantasy X-2 who hits on Yuna all the time. She's your cousin, a blood relative, you incestuous freak!
And, again, with depictions of both violence and sexuality, the power of suggestion keeps things more interesting then all out visual buffets.
Seems like a common thing in anime and H games . Cousins are fair game in anime and alot of the VNs i have played. For anime at least, the only thing that they find squick is brother-sister incest, then they go out of their way to point out that one of the two is adopted or a step sibling.
There are a decent amount Hentai visual novels that have good narratives with or without the sex scenes.Anything by Type- Moon could easily have the sex scenes wiped out. Most of the sex scenes in Fate Stay Night results from bullshit mate or die plot advancement.