After replaying some old save on Layla's route, I stumbled on a scene at the end of chapter 11 between Santiago (possible biological father of mc / Alexis+Layla) and Adriana.
Adriana is talking about having another child and she says: "We always talked about having 3"
An odd sentence to say, if you aren't talking to the father of your two other sons.
As for the incest being forbidden, well... you must be aware of it. I remember a case from a few years ago about a young married couple, who's been together since the school, who discovered that they were brother and sister only because they were experiencing difficulties in having babies and started doing some genetic tests to look for potential causes of infertility. It turned out the (deceased) mother of one them had a liaison with the father of the other and didn't realize she got pregnant from him.
You are messing things up here...
First, Adriana doesnt talk about getting a third child, its the guy who does it (and the guy is Santiago), Adriana is surprised by that. And they dont have sons, they have daughters. And you can be sure of it, that Santiago is not the biological father of either Layla or Alexis.
Than... the forbidden thing about incest.
Nobody cares about that here. And btw... F95 as a whole is ilegal too. Its a pirate site.
The issues with "incest is forbidden" in this thread are only because of patreon. Nyx makes her money pretty much only there. Patreon rules are very strict about incest in any way. Even Step-sister , Step-mother and so on are a no go on patreon, so if you dont want to lose your patreon site... watch it.
Aaaaaand... finally... the game has no incest, never will, and Nyx is just trolling all the guys who want incest so bad (for whatever reason)... she just plays around with the taboo thaught/fantasy of it, without crossing that line, and will never cross that line. Its a useful instrument to implement another layer for drama, which is annoying cause only fools are falling for that... most players already knew since the beginning of the game that there never will be any kind of incest in this game... sometimes it looks like Nyx is searching desperatley for the support of the incest community to get more support on patreon. But it doesnt work that way.
The whole thing is something you can see in many soap operas too btw... my ex-girlfriend watched them all the time (and so i got my fair share of them too for a while)... i cant even count how many times the "oh shit i accidentially banged my sister/brother" plot was used and it always turned out... they arent related in any way. The same thing is going on in this game.