>>71719992If I may weigh in on this too, it sounds like you haven't been sure what the exact relationship between Reine and her nephew is just yet. Like you know you want them to fuck, but it's almost like you want to just pluck them out of their own rooms while they're masturbating so they are riled up enough to fuck the first thing that has a pulse in front of them, ie their nephew/aunt respectively. So let's go through the parts you got so far that work nicely for their relationship and can foster a codependency / place of comfort between them.
>Shared interests in weeb stuff that is mostly understood by the rest of the familyGreat starting point to establish their bonding and spending time together. Pretty much a no brainer and lends itself really well to black sheep grazing together.
>Reine spoils him sometimes with her considerable incomeGood for establishing that the MC also views her as a providing figure of sorts and helps strengthen the idea that they are family. This is meant to help fan the flame behind the taboo that will come later. It also gives both parties a sense of purpose, 1 can always find comfort and basic need fulfillment from the other, while the one providing will have a sense of care and responsibility that comes from a desire to see that person taken care of.
>MC is a fan of her streaming contentPotentially a pretty deep and cool dynamic to explore. Is his aunt the exact same as the streamer she plays as? Does it feed further into the desire to commit incest because of a power play to have sex with the one desired by thousands? Does Reine want to be more to someone than just the chuuba?
>Reine is tired of being lezbaitSo here implies she has an interest in men, since why else would she fuck her nephew? This can also go back to the streaming lifestyle thing. She might also be receptive to the idea because it could also be a cover up almost of sorts. "Oh it's just her nephew, they aint fucking, my oshi is pure and loves me!" is what fans would likely think, and there's usually no stigma around them spending time with their families. There's a lot of cool stuff I think you can explore with this idea that can help develop the relationship. You ultimately need to really draw out WHAT the relationship is prior to the chapter starting. You don't have to paint it all out at the start, but it will help guide you on your writing if you know these things before hand.
