There is incestuous flirting between two characters in the beginning of the show but this dies down by around season 2. All of it is prior to them finding out they are related. S2E4: a group of men insist on watching a character get undressed, despite her asking them to look away. She manages to flee the scene. S2E6: a man and a troll (female) go to bed together. The man is under her enchantment so it is implied that this would not have happened otherwise. It is stated that they have shared a bed for multiple nights.