I was chatting with my friend @toperceivelife and you know how Aang and Korra are spiritually Zuko’s grandfather (+ Izumi’s great grandfather, Iroh II great-great grandfather) so you know that at some point, Zuko must have added them in the family tree as a joke. Now, imagine after they’ve dealed with Kuvira, Zuko throws this big official party thing to celebrate.During the party, he goes up to Korra and asks her how is his grandfather, Avatar Korra, doing nowadays. She’s confused about it because she lost her connection to the past Avatars. Izumi and Iroh II join in on the joke, all three of them call her “grandfather”. Now, Korra turns to Asami and goes “Is this some kind of weird daddy joke because they’re all so much older than me?”, and Asami is just like "Babe, Avatar Roku was his grandfather” and she just goes beat red. Can you imagine, all three of them saying at once “Avatar Korra, my grandfather,”
Asami joins in just to bug her. Lin too, she wouldn’t miss such an oportunity to tease Korra.