I own nothing, Rated M for later chapters. ABO Dynamics and thank you all for reading!

OoOoOo

Izuku was not conscious for the events that followed next. A fact, for which, she was extremely grateful. To hear the tale, it had almost come to blows. With two Alphas locked in a silent warfare as they sized the other up. Izuku's body had been cradled, quite carefully, by Katsuki. Though no one else had been able to witness the concern that had flared to life as his omega suddenly went from speaking to a limp-ragdoll, it did not change the fact that his Alpha senses had instantly gone into overdrive.

He saw the half and half bastard as what he was, a threat. Something which had caused his new pack omega great distress, clearly, he must have for Izuku to go down like that. A girl that could stand the pain of breaking her own bones with her quirk should not have been phased in the slightest by the sight of Todoroki.

Unless… unless that bastard scared Izuku. Which, was now, at the top of the list of things that pissed off Bakugou's already hot-blooded nature. Katsuki was the protector of his pack. Granted that pack was limited to only Deku, but she was his pack now and no one was allowed to frighten his omega. Or to cause her harm. Granted, he knew that it had been required for the tournament, he knew that. Bakugou understood it, but it did not mean that he forgave it nor that he accepted it by a long shot.

It had nothing to do with her Omega status. He had seen just how strong and fierce Omega heroes could be. So, it was not some sort of Alpha dominance issue. It all boiled down to the simple fact that Todoroki had harmed his Omega. He had hurt Deku. Conveniently, Katsuki chose to overlook the glaring reality that he too had done so on numerous occasions.

Because he was a protective Alpha.

Which only was made worse by the Shotou's next words.

"Release my Omega."

The look of incredulity was hastily replaced with an expression borne from the deepest parts of sheer rage.

"Your what?" He snarled, body coiled tightly around Izuku, keeping her prone form safe from this asshole that thought he could claim what Katsuki already had.

He noted that the Elemental Alpha's body was reciprocating in kind, seeming to tense up as his mis-matched eyes gauged Bakugou's every move.

Two sets of eyes narrowed at each other in blatant challenge. Both ready and willing to fight, neither wishing to back down as they perceived Izuku's safety was on the line.

"She is my pack-"

"Bullshit!" Katsuki roared loudly, the intensity of his shout caused the birds to flock away in fright from the very trees. "She is mine. My pack."

Todoroki snarled lowly at his response, a cloud of dense cold vapor was already forming from his finger-tips. The bastard wasn't even going to attack him with both sides, as he had done with Izuku. Bakugou's Omega was quick-witted, and a force to be reckoned with on the battlefield.

The explosive Alpha had known that for years, the way she cataloged everything and watched fights with such keen eyes. She had shown him up, that day, when they had paired off with one another in hero vs villain teams.

All the things Izuku had said still rung in his ears at night. She hadn't wanted to hurt him, couldn't take the chance as Bakugou had been so ready to do. She had known everything he would do, and countered it. If there was ever an Omega that deserved his respect more, he didn't know them. Nor did he care to.

"She bares my scent," Todoroki argued, stepping forward, intent upon reaching the unconscious Omega.

It flashed through his thoughts, what he had told Deku just moments before, of smelling like the half and half bastard.

The fury that traced through his veins was nigh on undeniable. The shit-stick had tried to erase his scent link to his Omega. He could have left Izuku is a much worse spot than being pack-less could ever have done.

"Not anymore," Crimson eyes blazed harshly at the opposing Alpha. "Listen up fuck-wad, I am only going to say this to you one time, as a warning. Izuku Midoryia is my Omega, my pack. The keeper of my peace."

Todoroki flinches for a moment, eyes wide and surprised by such a declaration. Who wouldn't be? Even Bakugou was startled, though he would never admit it, by how fervently the words left his mouth. It was a subconscious tell to just how sincerely he meant the words.

He had declared Deku as his all. The first and last in his world. The only Omega he would ever take into his pack. And, it was true, that he had never replaced her before, though he had been given ample opportunity. Gently, but firmly, his fingers tightened in their grip around her. Her unruly green curls shifted slightly with the movement.

"Don't say things you do not mean," The two-toned Alpha growled, advancing another step. "You have treated Midoryia with nothing but distain and disgust."

The words rang true, but not for the reasons that others had thought or would have implied.

"Remove your hands from my Omega," Todoroki demanded in a stoic manner that only served to anger the blonde Alpha further.

"She isn't yours," Katsuki challenged openly, "and she never will be."

It did not escape his notice, that suddenly fire blazed along with the growing ice that seemed to extend from Todorki's hands.

A nearly wicked grin parted Bakugou's lips as he sneered at the bastard.

"Come at me, fuck-stick."

Crimson orbs took in every possibility as the other advanced. First, he would have to get Izuku somewhere safe, and then he could deal with misinformed Alpha.

Deku was his. His pack. And, what he felt for her, not even All Might himself could stop.

OoOoOo

Aizawa watched, with an expression of someone close to falling asleep from boredom.

So, another pair of hormonal Alphas was going to trying and tear each other's throats out over some Omega. Big whoop-de frickin' do. This happened every year. It didn't make it special and he didn't care how 'in love' they were.

It was honestly, just a pain in the ass to deal with. Which was why he had let it go so long. Anyone with half a brain would have seen this outcome. And, it wasn't going to solve anything. They would likely be fighting over the Omega all year. Possibly for the next three years.

He sincerely did not care….as long as he didn't have to get involved. However, since they were rapidly approaching the point where he would have to intervene, he was going to be less than forgiving toward the two hot-shots.

And, he was going to throw in some detention for Midoryia too. Just because. He wasn't a sadist. Not matter what Midnight said. This was character building or some other such nonsense. Even if it wasn't, he was sure they would do some whiny introspective 'be a better hero' monologue that he would also tune out.

He sighed heavily, dark and half-hooded eyes spearing each of the youngsters in turn. He dearly hoped he could just knock the Alpha's around a bit and maybe, just maybe, some sense would come with it. The more sense, the less paperwork he would have to deal with in the future.

Vaguely cheered up by the thought, the Beta hero gracefully stepped out of the shadows just as Bakugou (the blonde pain in his ass) turned from putting Midoryia down, to fight Todoroki (The white and red pain in his ass).

Aizawa moved his neck a bit, loosening up his shoulders.

It was time to 'teach' the youth.

OoOoOo

Izuku woke slowly. Her body felt sluggish and her senses seemed to be on high alert, for she felt as if there was impending doom somewhere. However, she could not quite recall why. Her nose itched, and she twitched it. Muttering softly to herself about getting up to go to school. She rolled over, feeling the crisp linens that were coarser than she remembered.

She let out a soft cooing noise, as her mind attempted to lull her back into the realm of sleep. Yet, she hadn't been dreaming. That seemed odd. And, as she took another breath in, she smelled ash and –

'Oh holy crap! The Alphas!'

Her green eyes shot open, and internally she started screaming as dozens of different scenarios started exploding in her thoughts, much like Kacchan-

Oh no. Kacchan and Shoto were going to-

She ripped the sheets off her body as she sat up quickly, ignoring the momentary dizziness that accompanied her actions. She had to stop them before one of them ended up in prison for murder. Or attempted murder. Or really anything that happened when Todoroki and Bakugou were in a room. Really, generally speaking, it was all bad.

All bad.

Her feet had hardly touched the floor, when she realized she was in the infirmary. Quizzically she glanced around. Hadn't she just gotten out of here yesterday? Yesterday, when both Katsuki and Shoto had… had….

Suddenly her knees gave way, and Izuku sat heavily on the ground. Okay, wait. She was someone's omega. Two someone's? Her brain was clamoring at her, and she could almost feel her blood pressure spiking with the sudden stress. She could smell Bakugou. But she had smelled like Todoroki until this morning.

She grabbed her head, trying to sort the conundrum out while still very much aware that the two alphas could be destroying each other as she sorted this out. Because her nature was refusing to allow her to dash off until she knew whose pack she belonged in.

Did she pack with the first Alpha first? Or was the second Alpha her first? Was the second Alpha the second, because he had marked her second? Or was the first one second because she hadn't thought he was serious? What if they both thought they were supposed to be first? Which the order didn't actually matter, did it? Her alpha was the one she agreed to pack with.

Ah! Then her Alpha must be Shoto. But then again, her heart had raced with Katsuki. And, if she was so set on Shoto, why did she let Katsuki scent mark her? But she had thought he was doing it out kindness, because Kacchan could be kind. But then-

"Oh! You are awake."

Izuku's head snapped up ad she blinked owlishly at the kind eyes of recovery girl.

"…y-yes?"

The Beta hummed lowly in her throat.

"Your Alpha was adamant that you must still be injured when he brought you here."

She wondered, briefly, if Recovery girl would be so kind as to which Alpha she was referring to. Because Izuku would dearly like to know. Then the stray thought struck her, that Recovery Girl had believed that Katsuki was her alpha.

Confusion twisted at her features as she pondered that over.

"Kacc- I mean Bakugou brought me here?"

The wizened Beta nodded cheerfully.

"Oh my yes, all bluster and Alpha dramatics, you know how they are."

No. No, Izuku had no idea how Alpha dramatics went. But she nodded and gave a fake laugh all the same, because she honestly couldn't think of what to say at the moment.

"They think the world is going to stop," Recovery girl continued, "if anything happens to their Omega."

Izuku froze. Green eyes wide and disbelieving. She attempted to picture Katsuki looking distressed and all it brought up were images of the Slime villain that had attacked him. That day, was a day that would haunt Izuku's nightmares for many years to come.

But to feel worry, over her?

Her Omega nature was highly receptive to the idea, and the care that came form a pack. But, as a person, she had a challenging time picturing it. She knew Kacchan could and did care deeply for packmates. Therefore, she could see that. It must be that aspect of it then.

"But never mind that, it is time for you to go back to class."

Cold dread tingled down her spine at the seemingly innocuous sentence.

Class. With the pair of Alphas. At least no one had died. She was fairly confident that would have been mentioned at some point.

OoOoOo

She didn't have to ask why Bakugou and Todoroki where in replica sleeping bags of Mr. Aziawa's. Nor did she have to wonder why all eyes were on her the moment she entered the classroom. Her hair sticking out at odd angles and trying to smile though her knees were shaking.

"Sorry, I-"

"Take your seat."

She nodded quickly and began moving through the classroom. The eerie silence of it did nothing to calm her frazzled nerves. There was no doubt in her mind that everyone knew or would know soon enough. And, all her thoughts centered around what to do now. She quietly slipped into her chair and pulled out her notebook. She flipped through it to a blank page. Then she reached for her pencils.

Her green eyes caught sight of Bakugou as he swiveled in his chair to stare at her, and then she noticed that Todoroki was also starting at her. Her body lowered more into her chair, as if she could shrink behind her desk

She gave them a small smile, trying not to feel as if the room was going to explode into action in a moment's notice.

"Young Midoryia!" The booming voice of All-might sounded behind her.

And she shrieked in surprise. She shrieked like a little girl and turned to lock eyes with the intense blue orbs.

"Yes, sir!" She responded loudly after her surprise had ended.

"I must speak with you, come with me!"

She gave a nervous grin and moved to stand.

"May I be excused?" She asked softly, turning toward Mr. Aizawa.

"You may go."

"Thank you, Sir."

She ducked her head a bit shyly, and she noted that while Todoroki looked tense at her being around the heroic Alpha, Bakugou looked disinterested, but his crimson gaze rested on her. She stilled, watching him for a moment longer, before tearing her attention away toward All Might.

All-might led the way, chattering to her in an animated manner as she attempted to listen intently. As they neared the end of the corridor she glanced up at him curiously.

"What is this about, Sir?"

"Nothing! I just wanted to eat lunch together, and I heard you had been in the infirmary!"

She paused, and then stared, before finally laughing.

"Also, it is none of my business, but I notice that you smell like young Bakugou. Are congratulations in order?" Her asked suddenly very enthusiastic.

Izuku stopped laughing.

"All-might?"

"Yes?"

"If the first Alpha says you are their pack Omega, but then another Alpha asks you to be their pack Omega, which pack do you belong to? And, let's say both of them scent mark you, do that matter?"

The pro hero froze watching her intently.

"I… I don't have much experience being an Omega," he said, deflating slightly.

Izuku nodded, in understanding. Neither did she, really.

OoOoOo

Two male Alphas sat, in ridiculous sleeping bags, staring each other down.

Aizawa sighed heavily.

Pains in his ass, indeed.