(Don't worry, I don't plan on lemon or anything. Although I may have some dirty humor and perverts.) Every Inuzuka has a mate. During and after puberty, they can smell them and their chakra reacts instinctively to them. Kiba Inuzuka's chakra was always kind of weird around Naruto. Naruto returns from his training, having befriended the Nine Tailed fox. Or, Naruto and Kiba are mates. Will they be awkward idiots? (Why are you reading my disclaimer? If have time to read me saying that Naruto doesn't belong to me, you have time to read this.)