"If her sister had said something like, "Hey, don’t you want him to see this?" Pretty sure that with the incest activated she actually says something like that and also remember that for that scene to happen you need to max the love of both women and (spoiler) after that scene, the next one is them having a threesome with the MC so is not like Julie or the name you assigned her steals Linda from the MC, the context of that lesbian scene is that both women are lusting the MC and Julie pretty much convices Linda of having a threesome with the MC but guessing from what you said you stopped playing and never got to that point.
I think I might have missed the part of the scene after skipping some text, so maybe the dialogue explaining it was there. From what I recall, it seemed like the sister touched Linda and Linda let it happened and wasn't aware that the MC was watching. I could be wrong, though. It felt like Linda might have allowed it, but I can’t say for certain. I’ll take your word for it.
I also want to clarify that I know the sister won’t steal Linda, as I’m aware of how much Siren is focused is on the vanilla love story between Mom & Son. I just wanted to mention this because in other games that claim to avoid certain content, they sometimes include ntr moments between women without the MC knowing.
After talking to her a few times, I didn’t notice much change in the dialogue. It wasn’t a big deal, though—I’ll just move on to another game, like Zombie Retreat 2 or maybe Tower of Passion again, which I really enjoy.
Thanks for your reply, I really appreciate it