I don't remember the meaning of normal since 1998

Sokka balled up the frayed array of straps and chuckled it into the river he was sitting next to—an action that sent pain clambering up his leg, and making him yelp with a certain high pitched sound that certainly wasn’t manly.

“Sokka?”

Sokka immediately flinched into upright position. “Z-Zuko,” he chirped, attempting to casually lean against the rock he was standing near as Zuko emerged from the woods. “Fire Lord Zuko. To what do I owe the pleasure?”

Zuko rolled his eyes and walked up. “I told you to stop calling me that." He came to a stop in front of him, and Sokka couldn't help but admire him. His hair was getting even longer now, and it suited him.

It had been quite some time since the coronation. Lots of time together, working to undo the damage his father had done. Both by his side in the fire nation as his ambassador, and now, traveling again. So much had changed, and while he certainly looked more regal now, with his long hair and patterned robes, he still made Sokka's heart race like he had at boiling rock all that time ago. Perhaps even more so, as they'd continued to get closer as they worked—

"Dinner’s almost gone, and you weren’t back yet.” A teasing smile played at Zuko's lips, despite his attempts to appear stoic and wise. “I thought you were stuck in a hole.”

“Hey!” Sokka said, with an accusing wave of his finger. “You weren’t there for that.”

“Toph told me,” Zuko said. “Several times.”

Sokka clicked his tongue in embarrassment, feeling his cheeks warm. Damn Toph. In an attempt to make up for her and Zuko’s lack of a life-changing bonding trip, she’d taken to telling any story that made Zuko laugh—and most of those tended to be at Sokka’s expense.

“But I see you’re above ground,” Zuko said, his golden eyes passing over Sokka, seeming to glow in the dim light. “And in one piece. So what’s wrong?”

“Nothing’s wrong,” Sokka said with a fake lofty air.  

“You’re missing dinner,” Zuko said. “And it’s pig hen, your favorite.”

He never could get anything past him.

Sokka sighed in defeat and blew air to move a strand of hair from his face. “My knee hurts. I was trying to fix the brace, and I couldn’t, so it’s going to hurt more until I can get materials to make a new one.”

“You told Katara it didn’t hurt.” The words came in Zuko’s standoffish deadpan. Sometimes it was hard to tell when Zuko was just stating a fact in his rough voice or when he was being belligerent.

“Yeah, well. She’s having fun with Aang tonight. They’re all gross and obnoxiously lovey-dovey.” His looked away, at anything other than Zuko’s intense expression. Maybe if he studied the ants on the ground enough it would teleport him out of this conversation. “I’m not going to ruin that by making her bend water over my knee for an hour and then be all worried after.” He shook his head, and then met Zuko’s eyes again with what he hoped was a convincing smile. “It’s fine.”

Zuko’s stare was unnervingly sharp. Deadly. It was similar to the look he used to give them when they were about to fight, or the look he gave conniving fire lord generals who were faithful to his father’s old ways. Like he was really fucking angry and the only thing stopping him from setting things ablaze was Iroh’s voice in his head telling him to breathe.

But in an instant, it was gone.

“I’ll do it,” Zuko said curtly.

Sokka snorted. “You’ll do what?”

“I’ll work on your knee.”

“Yeah, thanks, but I don’t need my skin melted. When I do, I’ll give you a call.”

“Pain relief,” Zuko corrected, glaring at him like it should have been obvious that Zuko wasn't suggesting amputation by agonizing flame. “I’ve been…working on it. Uncle said the elements can learn from each other, so I figured there must be a way. I know your knee has been hurting so…I’ve been practicing.” He nervously rubbed the back of his hair. “It will help. Make it feel better, if only for a bit.”

Sokka blinked, staring at him with wide eyes. Zuko did all that for him? For him?

But Zuko’s pointed gaze snapped back to him, making Sokka’s heart flinch.

“It isn’t a choice. Either you do it with me or you ask Katara.” He stalked forward, almost threateningly, making Sokka take a half step back. “It would have been in a better place by now if you had rested at first. You can’t keep hurting yourself and pretending like it doesn’t matter—”

“Okay,” Sokka said, putting his hands up with a gentle laugh. Only Zuko would show he cared by trying to intimidate Sokka into taking care of himself. “Okay, we’ll do it.” He snorted, trying to offset the real emotions he was feeling with a joke. “What am I gonna do, run away from you?”

Zuko’s eyes narrowed. “That’s not funny.”

Sokka blinked. Maybe it would have been funnier if he hadn’t landed on his bad knee after saving Zuko from an arrow, but that was neither here nor there.

So he gave in and sat down, awkwardly, not knowing exactly how to react at what was about to happen.

Zuko knelt in front of him, which was already an image that made Sokka’s head spin, and then he rolled up Sokka’s pant leg, making Sokka’s entire body tense in embarrassment. But he didn’t stop him. He was just relieved that Zuko was so concentrated on his knee that he wasn’t noticing how much Sokka was blushing.

Zuko did a small motion with his hand, and flames erupted from his palm. But he concentrated, his eyes narrowed, and the bright orange fire subsided into a snaking ring that began to spin, controlled and glowing. It almost…moved like water.

Zuko placed it above Sokka’s knee, enough so the warmth radiated across his skin but didn’t burn.

Sometimes Sokka couldn’t fathom it. That someone he used to hate, sometimes even fear, was now someone he trusted so completely he’d allow him to not only bend next to him, but use it to help him, now, when he was vulnerable.

The heat was intense. Not unpleasant, but intense. Almost like it was blocking out the pain as it radiated up his leg, settling in his chest.

He let out a sigh, slowly settling into the position as the tension seeped from his shoulders. He hadn’t felt this painless in…a long time.

“I…I never did say thank you,” Zuko murmured. Zuko’s lashes were long, eyes downcast as he worked the flames under his hands. “For earlier.”

“You better not be doing this because you feel guilty,” he said. “Because I’ve saved your life about a hundred times by now. With that logic, you’ll be doing me favors until we’re both old men.”

Zuko chuckled. It was a low, good sound. A sound that made Sokka feel like he won a prize every time he earned it. A sound that made Sokka want to drop everything else and just focus on making Zuko smile.

“Gladly,” Zuko said with a low smile. “I’d do pretty much anything for you, Sokka.”

Sokka stilled, everything else fading from his view as he met Zuko’s golden eyes.

“But I’m not doing this out of guilt,” he continued. The heat pressed on, and the pain was gone from his mind. “I’m doing this so you don’t stubbornly give yourself chronic pain. Because I care about your knee,” he said. The flames dimmed, but his hand still glowed, and he slowly placed his palm against his knee. Sokka could feel the heat, and his heart was squeezing in his chest—

“And I care about you.”

His hand was still there. It was a marvel that Sokka’s brain was still functioning enough to form the thought that Zuko’s hand was on his knee as he stared up at him, saying that he cared about him.

Now. He should tell him he loves him now, right now, before he lost his nerve, again—

“Zuko, I…”

“We should get back,” Zuko said with a breeziness that Aang would have been proud of, and Sokka felt a rush of cold air as Zuko’s hand left him. Zuko stood, brushing himself off.

Sokka’s stomach dropped with a mixture of alarm and disappointment as the moment went up in smoke before his eyes. “Thanks,” he managed to blurt out.

“No problem,” he said. “Just one of the hundred of favors I owe you, right?”

“Right,” Sokka said in a faint voice. He let out a nervous, bubbling laugh. “We’ll have to grow old together just so you have time to make it all even.”

“Wouldn’t want it any other way.” Zuko smiled warmly. Of course it was warm. Everything about Zuko was warm.

Spirits. This would be the death of him, wouldn’t it? Loving this man who was so dense he would never catch onto any of Sokka’s flirting, and being so helplessly and terrifyingly in love he’d rather take an arrow to the heart than risk ruining their friendship? Was this just his fate now?

He stood, and subsequently staggered, his legs wobbly from a reason completely different than the pain from earlier, but Zuko steadied him. His warm hands holding his arm, the other on the small of his back, and he was so close that Sokka could smell the scent of smoke that followed him.

“You good?” Zuko’s voice was tinged with concern, sparking in his ear. “Is it still in pain?”

“No,” Sokka said quickly. “Just getting…used to it. It feels better. It feels great. I-I can’t wait for you to do it again.” Please.

Zuko blinked, some unreadable shock in his eyes at the words that had just tumbled from Sokka’s mouth, but his smile twitched onto his face. “I’m glad it worked,” he said. “And I can carry you. If it helps.”

Sokka’s face lit up in a blush and he smacked Zuko’s chest. “I do not need you to carry me.” I certainly couldn’t handle you carrying me. “Just…this. This is enough.”

Zuko readjusted, allowing Sokka to hold onto his forearm, the two slowly making their way back to camp. The pain from his knee was distant as he talked to Zuko about the earlier battles, relishing in ever laugh that he got.

Yeah.