I probably wouldn't consider it ntr, especially if you retconned their relationship a little to make it clear that she has no interest in the MC (she's not exactly behaving that way right now).
I would disagree with this. Callie has made it pretty clear that she isn't sexually interested in Dickon; she refuses to kiss him and does not enjoy his sucking on her breasts at all. Callie is very open and confident about her body, a bit of an exhibitionist, and she is unreserved and flirty in her demeanor--she enjoys attention. While Callie is overtly sexual, I do not see her reaction to the protagonist as being fundamentally different than that of a singer who enjoys performing for people. Of course, I may be wrong, but that's how I interpret her character.
This isn't something that was even part of my original plans for the game, and I still haven't decided if it's something I want to spend time on. On the other hand, because the MC is a guy and the entire game is first person (excluding Side Stories if we ever unlock that Patreon goal), the opportunities for lesbian content are very limited without something like this. If I were to include this option, I would most likely not "lock away" the character being matched up with Callie, but Callie herself would obviously be off-limits until the MC potentially finds the spell to change her sexuality. It would have minimal impact on the main story, but would serve as an alternative for those who want to make Callie happy but feel uncomfortable about using magic to permanently change a core part of her personality, something I wasn't even aware could be an issue until a couple of fans helpfully pointed it out to me.
I think I would really enjoy being Callie's wingman and helping my best friend find someone special, but I do foresee a few pitfalls in this. First, you've already established that sexual orientation is a core aspect of a character's personality in the game. I would find it implausible for every character except for the lesbian to be bisexual, and a character's bisexuality should be a more important attribute than something that exists because the player picks a particular choice. While I trust that you'd give the matter serious thought before implementing anything, I do think the pool of potential partners should be limited and their bisexuality should be more than superficial. On the other hand, you do intend to introduce a spell that allows the player to alter the sexuality of characters, and I imagine there'd be players who'd enjoy making every female character bisexual, which, in turn, would potentially make your job much more complex if you chose to implement it.
Well before I give my opinion on NTR let me explain what NTR is for me: Once my character actively pursues a female NPC she shouldn`t get fucked by someone else. If my character is stealing her from a boyfriend/girlfriend great but don`t force me to watch them fuck. Once I try to get into her panties, make her off-limits for any potential character.
While I don't want it to seem like I don't feel your opinion is valid, I do feel I need to point something out.
Long Live the Princess is a non-linear game with copious interconnected variables. If we just take the content already in the game, the player can easily begin a romance, i.e. earn love points, with Primrose just by reading books and increasing the Perversity ability. There is currently no way to have any romance with Callie. This makes it difficult to have some cutoff where the game decides a player has locked on a particular character. It's easy for the player to know whom they like, but, without some immersion breaking choice screen along the lines of "Pick One," it would difficult for Belle to anticipate where to place such a flag. While it is probably possible, it would be more difficult in a game like this than a more linear branching story.
If you think about it NTR is the basis of one of the Western Worlds greatest stories, the Iliad. Helen leaves her husband for another man, unfortunately the husban just happens to have access to an army.
Well, in Herodotus's version of the story, Paris and Helen shipwrecked in Egypt on the way home. King Proteus of Egypt sent Paris on his way, but he kept Helen as an honored, untouched guest until the war was over and Menelaus came to retrieve her. In Euripides's version, Hera had Hermes spirit Helen away to Egypt while Paris took a doppelganger of Hera's creation to Troy with him. As long as there have been NTR stories, there have been those who prefer a version of the story without the NTR. :winkytongue: