Romantic incest possible?

[SatinAndIvory]

I am making an incest VN. My characters' family start out very wholesome and the inner family relationships are mostly healthy at the offset. I have 3 main routes: a pervert route where the MC obviously pervs and sleep-sexes his siblings and his mother, an innocent route where the MC is pretty clueless about sex and gets taken advantage of, and finally the planned romance route. I'm trying to make the story very grounded and although it won't be 100% realistic, I'm trying to skirt the line of realism as close as I can.

That being the case, I'm having issues wrapping my head around the concept of "romantic incest". For me, incest is almost purely sexual as romantic love and familial love are almost identical, minus the obvious sexual underpinnings in romantic love. For example, if two close siblings love each other platonically as two siblings would, how could you tell that they are now in love romantically besides the fucking and the kissing? Is there anything new that gets added or removed? Is there such a thing as "romantic incest" or is it just familial love where you want to bang the girl in question?

Edit: Just a reminder that this is in the context of keeping the incest in the realm of plausibility. It doesn't have to be realistic, but it shouldn't be "this is fiction, do whatever you want" territory.

 

[BigH4nd]

Hi SatinAndIvory

I think you bring up a very interesting point, namely, that after we divest ourselves of sexual relations from a particular family's incestuous relationships, the residue that remains seems to be no different than normal family interactions.

I don't know if I'm understanding this correctly, but I think there's a definite difference between playing a role in a familial relationship and playing a role in a romantic relationship, even though that difference is extremely small in "romantic incest".

I think we can determine this by looking at the subject's position in the relationship. Simply put, without the family relationship, the incest relationship would cease to exist, and the duo in the relationship would view themselves differently. There may be forbidden pleasure in an incestuous relationship, but that pleasure does not occur in a romantic relationship. So, when two family members establish a romantic relationship, perhaps in their eyes they already seem to be a real pair of lovers rather than family members (familial relationship is over).

So, according to this theory, we can design the plot in such a way that it slowly makes the two people realize other roles in each other that remove the "family members role", as in "he/she was my sibling, but now I'm in a bit of a subtle mood, and it has nothing to do with the sexual relationship," a theme that is depicted in some of Japan's games, as in Like 「Ｙｏｓｕｇａ　ｎｏ　Ｓｏｒａ」.