You know I <3 you,
Holy Bacchus, but there is a reason those questions are in there and it's not to see if they end up together. Like you suspect, I am planning on addressing their feelings toward one another. I think (hope) I can do it justice and provide a satisfying ending for most players, but many people are going to be disappointed.
I hope you can too, although I will admit that I'm a bit disappointed to not see it go down the love route.
I get that since most incest games and VNs do this you wanted to be different and that's totally fine, but I think a lot of us like to see a happy ending and if indeed it turns out that these two characters confess they love each other on a deeper level as has, to me, seemed rather evident but they decide not to act on it, that can seem like a sad ending because they're basically lying to themselves. If, however, one of them realises it was just a phase and their feelings aren't real then that is equally sad in that it's now a case of unrequited love.
Perhaps it would have been better if Taylor was the only one developing deeper feelings because, as someone unexperienced with relationships and sex, he could easily misconstrue Nikki's actions for something deeper and then she could easily rebuff him for being silly, but having both of them show feelings is what's gotten us to this point where people really want them to get together at the end because of what's been shown.
Of course, life doesn't always have happy endings and the ending for these characters can certainly reflect that, but sometimes I think we need feelgood wincest stories to try to take away the stigma of these types of relationships and make the case that #LoveIsLove no matter who it is between.
P.S. If you're looking to do an incest love story for your next VN, I have a few ideas

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