Disclaimer: Naruto belongs to Masashi Kishimoto.

A/N: I decided to give Sasunaru month a try in English this year, so here you have it. This is a collection of individual and mostly unrelated drabbles. Both Sasunaru and Narusasu tropes will be included and each chapter will have its own warnings, as well as a tag to specify if it's SN or NS.

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Prompt #8: Are we fighting or flirting? (SN)

Warnings: Omegaverse, Alpha Sasuke, Omega Naruto, mentions of mating cycles.

Inspired by Mrs. Uchiha. You can either consider it part of the same universe if you want, or think of it as a separate story.

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Naruto had known Sasuke for quite some time now.

They met at twelve years old, when they entered the same high school, and their relationship was pretty rocky, to say the least.

Sasuke usually kept to himself, and he was also very popular, for some reason Naruto couldn't begin to understand, but was all arrogant and nothing more than a jerk, in Naruto's opinion. He'd been so tired of his "I'm better than all of you" attitude that he looked for every little reason to crash with him. And so, they were always at each other's throats, even throwing punches at one another when they were younger.

Now, at sixteen, Naruto still thought the guy was an asshole, but a more tolerable one. He'd come to realize Sasuke wasn't really that arrogant, he just didn't care about other people much and was somehow excellent at everything he did without really trying. That annoyed him, but it wasn't really Sasuke's fault.

They didn't get along by any means, but their fighting turned into harmless bickering in most cases, and he knew Sasuke provoked him just because Naruto getting mad was amusing to him for some reason.

They weren't friends, not really. They weren't enemies either, though. Naruto used to refer to them as rivals, but he wasn't sure that word really applied to them anymore. They used to compete a lot, but now they were still in each other's orbit in a different way. Naruto didn't expect anything from him, if he had to be honest. He didn't think Sasuke actually cared, not until that incident happened.

He'd gotten his heat at school and, while this usually wasn't a big deal, that time things had escalated in a way Naruto wasn't comfortable with. He came across a group of other students, ones he hadn't seen before, and they were all alphas. They started talking bullshit about his secondary gender, and Naruto would've beaten their asses if it wasn't for the high fever he got. His head pounded, he felt dizzy, and it didn't take a genius to realize this wasn't just a heat, but some kind of illness too.

People said many things about heats, but truth be told, it was just a period of time when Naruto felt grouchy, sweaty and sticky, not all that horny business people always talked about. The overall feeling was uncomfortable, but it wasn't like he lost his mind during heat. He just had to take care of always taking his scent suppressors so he wouldn't reek of pheromones all the time. So, because of this, heats weren't really a reason for him to miss school. It had never been a problem before, anyway.

Except for that one ungodly time. The alphas had tried to get handsy, and then Sasuke came walking down the hall, seemingly out of nowhere, found out what was happening, and scared those guys away. Naruto had been wary afterwards, especially when the Uchiha had basically ordered him to go with him so Sasuke could take him home. He'd even stayed until his parents arrived, quietly doing his homework on the lunch table while Naruto glared at him from the sofa.

"Why did you help me?" he'd asked Sasuke. He was honestly disturbed by the situation, and couldn't actually think of a reason for Sasuke to do so much for him. Helping him get rid of those guys was okay, he'd give Sasuke that. The guy was an asswipe, true, but he wasn't a bad person. Taking him home and staying with him afterwards, on the other hand…

"Would you rather I didn't?" the raven had retorted, but didn't really offer an explanation.

They hadn't really spoken much that time, and Sasuke hadn't seemed affected by the fact Naruto was in heat. He just went down on his schoolwork diligently, as he always did.

So now, Naruto didn't know where they stood. Sure, they weren't friends, but he didn't feel like they were not friends. He started approaching him more, and surprisingly, Sasuke didn't tell him to fuck off as often as he used to.

"Stop fidgeting, you're not letting me concentrate," Sasuke grumped from the other side of the desk when Naruto's leg movements started making the wood shake.

They were working on a pair project together. And yes, that was also a thing now, working together voluntarily and not because the teachers forced them to.

"I'm bored and I don't wanna work, this project is not due until the next two weeks anyway."

"An idiot would say that."

"Wha- Don't call me an idiot, jerk!"

"A lazy idiot, on top of that. Ouch!" Naruto had just kicked him in the shin. "That hurts, stupid!"

"Stop calling me an idiot, then!"

"Ahem," they both looked up to find the librarian's angry glare directed straight at them, and it was no mystery why they got kicked out of the library.

"See what you do?" Naruto complained, carrying his bag on one hand, letting it graze the floor, not caring about getting it dirty.

"You're the one who started it."

"Just because you keep being a jerk! You keep annoying me every time, and you enjoy it!"

"I was literally trying to work on our project, how is that being a jerk?" Sasuke asked annoyed, not looking at him.

"Well, you keep calling me mean names," Naruto said, as that explained everything.

"You do, too. You don't see me whine about it," Sasuke retorted, and then added a soft "you're so stupid."

"Oi!" Naruto frowned and pouted a bit.

Sasuke kept doing that. He'd call him names, but with that tone. It didn't have any of that old bitterness in it anymore, like it had a couple of years ago. Now it sounded almost fond, for some reason.

It took Naruto a while to finally get it, with a little push from some of his friends of course, who kept claiming they fought like an old married couple.

So one day, he just went for it.

"Say, Sasuke," he started, walking leisurely next to the raven alpha. "Whenever we argue… Are we actually fighting or flirting?"

Sasuke stopped in his tracks by the sudden question.

"Where did that idea come from?" he asked, bemused.

"Well, people are always saying we argue like an old married couple," the blond shrugged.

"Tsk, stop listening to people," was all he said before he resumed walking. Neither of them spoke for a while, until Sasuke decided so, out of the blue. "Would you hate it if we were?"

"Huh? Were what?" Naruto had already gotten distracted by another thought.

"Flirting."

That made his eyes open wide. And it was exactly at that moment that the blond omega realized that…

"No, no I wouldn't."

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A/N: This is the first of these prompts I had to finish on the same day hahaha I hope it was okay and I'll see you tomorrow!