Was reminded of my “transmasc Jon names himself after Jonah” au and now I’m thinking about it in the context of the incest au. Elias is being told by his adorably bashful son that he wants to go by “Jon,” and he’s thinking short for Jonah and Elias is greedily drinking in Jon’s obsessive fixation on his past self and Jon is so so anxious and Elias is just trying very hard to school his facial expression because he has been struck by a sudden and overpowering Need to fill his darling son with cum until it takes.