Sokka
is
Confused
When the hell did it happen is what he wants to know. When did Zuko stop chasing and start kissing? A subconscious shudder ran down his spine. It had taken him a while, but he had eventually gotten over the fact that the boy he thought of as a little brother was gay but Zuko still gave him the creeps. Not that he ever let it show of course. Warrior Chiefs didn't get "the creeps". That and if Aang found out, he'd get that 'you-just-kicked-my-eaglepuppy' look.
Aang had always had a weird taste in people, just look at Bumi! But seriously, this was just plain weird. Zuko was the Fire Lord, descendant of Fire Lord Sozin the man that ordered the genocide of his people, yet here he was, holding his hand and dragging him to a sweet stall, grinning like a maniac. And... what's this? Zuko was smiling too?
Zuko didn't smile. The occasional leer maybe, but never an actual smile.
Forget 'when', how?
Hadn't Aang liked Katara way back when? How many times did Sokka have to poke him to stop those goofy looks. How many times did he have to drag the little kid away and give him a talking to about the boundaries he could and could not cross?
And in his confusion Sokka came to the simple conclusion that the culprit had been puberty. Puberty always messed things up.