Whoever wrote the text/dialogues/moms-lines is not really good at it, to say the least... I mean, first of all, i hate when it's obvious that female character lines are clearly written too aggressively, clearly by a man who simply don't even bother trying to imagine female psychology or mental form and so on, let alone imagining/creating something taboo, morbid and complex, as any potential incest scene/situation is. So, the best thing here are images/artwork, text is almost a complete turn-off, at least for me.