we as fans need to put more actual incest into batcest.
most of the time when i read fics with batcest ships it's "they've never regarded each other as brothers anyway" or "their relationship irrevocably changed while they were away from each other and now they don't see each other as father and son" or "they were never adopted in this au" or "the incestuous nature of their relationship will never be mentioned by anyone or explored in any meaningful way".
where are the fics where the characters see themselves as both siblings/parent and child and lovers at the same time? where one of them had a crush on the other and it never went away even though their relationship transformed into a more brotherly one? where there're complicated family dynamics intertwined with romantic/sexual relationships? where there's slow burn and denial of feelings because of social norms? where there's guilt, anger, horror and other emotions the character experiences when they realize they have very inappropriate feelings for someone?
give me scenarios where siblings have to go undercover as a couple. where they have to share a very small bed and huddle naked for warmth. where they're overcome with an instinctual urge to mate with each other in omegaverse world. where the universe decided they're romantic soulmates despite being perceived by society as father and son. where they find themselves in a fuck or die situation with each other.
i just think it'd make the relationships much more interesting and complex.