So there is no genetic bond,
...in the opinion of Viconia. Imoen disagrees. Viconia is hardly an authority.
Hmm. I'd think being a preistess of Shar would qualify her as knowing more about the gods than you. Not to mention was also a preistess of Lloth. So I'd think she's more of an authority than anyone else,
Three weak points in that argument:
1) It asserts that a Realms character can know more about the Realms gods than someone who can read
everything about the Realms gods.
2) It presumes that being a cleric of two evil gods, at least one of whom carefully cultivates ignorance in her worshipers, and neither of whom would ever consider reproducing with a mortal, makes someone an expert on genetics.
3) It presumes that a Neutral Evil character from a culture that thrives on sexual perversions, from stopping a male's heart at the moment of climax to having sex with demons, is someone who should be listened to when she says, "Oh, that type of sexual relationship isn't immoral."
and that dialogue is product of Bioware, not a mod.
Exactly so, and in it, Imoen makes her view of the ethical viability of a sexual relationship with another child of her father abundantly clear.