Treason

Written for a kink meme prompt: "Kili can see the way the gold sickness is effecting Thorin, he loves his uncle but the illness is twisting him into something that Kili doesn't recognise. So before the BOFA, he pulls Fili aside, kneels down, puts his bow to Fili's feet and swears his allegiance. Fili is stunned because their uncle is king and this is treason."