Smaug-never-came AU (aka Smaugless AU from now on ‘cause I’m lazy)
I have this headcanon for Nori that he really doesn’t want children, because he’s convinced he’d make a terrible parent. In this AU, he minds a little less, for a variety of reason (mostly, because the house of Ri is rich and powerful enough, and so he doesn’t have the fears he’d have in canon after a childhood in misery), and so when Fili and him fall in love, they decide to have a child to make sure no one can forbid them to marry (Nori doesn’t have a great reputation, so for him to marry the heir to the throne… it might have been a problem)
At their wedding, Thorin spots a very young, very pretty little dwarf: Ori, the youngest child of the house of Ri,who usually stays away from court because he’s too pretty for his own good not interested in that life and prefers his books.
Thorin had thought that marrying his nephew meant the end of his troubles.