After two days of research into affinity types Sasuke finally closed the last of the books he had checked out. Having the same affinity type wasn't conclusive proof that Naruto was the son of the Yondaime. It just meant that there was an increased likelyhood that they were related. It was possible that Naruto's father was the Yondaime's Fourth Cousin twice removed or something, and that both of them had the same elemental affinity due to a common ancestor from way back before the founding of Konoha.
He needed a second opinion, which was why he would have to ask one of the smartest people he knew despite the fact that he was lazy as hell, and would more than likely refuse just to be contrary or because it would cut into his naptime or something. He could already hear the put-upon sigh, and the mutter of "Troublesome". After returning the books, he headed to the Nara residence. The Naras were lazy as hell, but they were absolutely brilliant. He knew that for a fact because his father had once called on Nara Shikaku to create the profile that had helped the KPMF capture a serial killer.
An hour later Nara Shikamaru was intently studying Naruto.
"Troublesome." the lazy boy muttered as soon as he finished his inspection and headed back over to him in order to give him the results.
"It is almost entirely certain that the answer to your question is yes." Shikamaru said quietly. "The two small spots in Uzumaki Naruto's right eye are hereditary. You'll notice two identical spots in the Fourth Hokage's right eye in the close-up they used in our textbook."
"Hey! What are you two muttering about?" Naruto yelled from the other side of the field.
"Nothing really, Shikamaru just doesn't want to go get ramen with us." he replied feeling irritated. Not only would he be owing the Nara a substantial favor for doing something that didn't give him a definitive answer, but he would also have to buy Naruto as many bowls of ramen as he could put away in one sitting since that had been the price of luring him out here on his day off.
Two hours after his examination of Uzumaki Naruto at the Uchiha's behest, Shikamaru had been studying his sensei's last move in the latest round of their never-ending game of Shogi when the man had finally asked the question that had obviously been bothering him. He knew that Asuma-sensei had been hanging around at the edge of the field close enough to intervene if necessary but far enough away to give him, the Uzumaki, and the Uchiha some privacy, and that he had been unable to hear any of the conversations that had taken place while he had come to the unsettling realization that the most hated person in Konoha was the son of the Fourth Hokage. He also knew that his sensei was curious as to what had been going on as the situation was rather unusual since the teams hadn't really interacted since graduating the Academy, but willing to let him tell him in his own time.
"What were you talking with the Uchiha about earlier at training field 7?" Asuma-sensei finally asked.
An evil thought suddenly came to mind. He knew that the Uzumaki's heritage was a secret of the highest order that should and could not be revealed even to those who might be in the know, otherwise everyone would have known and commented on it, and he had always disliked the Uchiha. The boy was an arrogant bastard who never appreciated what was given to him. As soon as Ino caught wind of what he said next...
"Uchiha Sasuke recently discovered that Uzumaki Naruto was a Wind affinity and wanted to discuss trading him for Ino. Apparently Haruno Sakura hadn't been stoking his ego enough so he wanted the second most rabid member of his fan club on his team as well." he replied as he made his move.
"Really?" Asuma asked, looking interested. Apparently Ino had been getting on his nerves again. If that girl had the power to back up her bossiness, she'd truly be a fearsome kunoichi indeed. Since she didn't however, and every other topic was clothes, Sasuke, or her diet...
"But dad, a Wind affinity." Asuma whined in a way he hadn't since he had tried to beg his father to buy him that super awesome sword he had wanted when he was twelve. Not that he'd gotten the sword either...
"I'm sorry son, but until a member is either promoted or leaves the shinobi forces either feet-first or otherwise I can't change the Genin teams once they've been passed." the Sandaime Hokage said with a sigh. He wasn't quite sure what had brought this on, but if he could have given into his son's begging and given him Naruto, he would have done so and not just because it was annoying as hell. This had been the first time his son had come to him for something in a long time.
It was a pity he couldn't give it to him however...
Edited 4/2/13