I sail this ship. While I can't see this moment here happening easily, the hilarity that would undoubtedly lead up to it would be the highlight of the series if it were to become canon.
I also find it funny that Bumi has become more popular than his namesake. Possibly because he's King Bumi's spiritual successor, as it were, and his presence gives us an opportunity to sort of get to know what Aang's BFF was like in his younger years.
So sweet. I was bitter over the Tenzin, Lin, Pema thing but I think something like this would put a stop to those feelings. Lin needs some love and your artwork is just beautiful. Lin's as serious as Bumi is crazy, but I think that makes it even more cute.