Disclaimer: I don't own My Hero Academia!

Okay, so I hope y'al are ready for this because... I'm totally not! But, I hope you enjoy it anyway!

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

An Omegan Warrior

Chapter 1

Izuku Midoriya didn't believe that being born an Omega had anything to do with his dreams of becoming a hero. Nor did he think his peasant status was anything to worry about either. He was a fairly content child, growing up in a small, simple village that perfectly reflected his nature. He walked between the oddly shaped, white, clay houses happily and dreamed about leaving on an adventure.

"Still got your head in the clouds, kid? If you know what's good for you, you'd settle down and find yourself a strong Alpha to mate with instead of this foolish hero nonsense." A villager stated as he passed, having noticed the far-off look in his green eyes.

Midoriya's nose crinkled some, and he picked up his pace. He was only thirteen, so if he was honest, he had no idea why the three different types, Alpha, Beta, and Omega, were even important. All he knew was that as an Omega, it would eventually mean he'd marry a man for childbearing.

He finally made it to home and scurried in, helping his mother with the table and dinner, the man's words still rolling around in his head. "Mom… I know I haven't had my first cycle yet, but I need to know. Why does everyone treat me like I'm just some…bitch, I guess…"

Inko finished setting everything down on the table and sighed. She'd been trying to put off explaining everything until he was older, believing that the truth would crush her son's dreams. She couldn't say that she supported such wild fantasies of danger and heroinism, but at least it kept him happy.

"There's a hierarchy Izuku." She explained. "In both males and females, there are three different ways a child can present that determine many things about them. They are categorized into Alpha, Beta, and Omega."

"But I know that already! It's common knowledge since we can't really hide which type we are." Midoriya whined, playing with his rice. He'd tried this conversation many times before, but she'd always leave her explanation at that, telling him he didn't need to worry about it yet.

Inko sighed, knowing for once he was right. She'd put off the 'birds and the bee's' talk with him for as long as she could, but in a couple of years he'd be of age and it would probably embarrass him if he went through his first heat without knowing why he was behaving the way he would. "Alright, Izuku. I'll explain in more detail about the three types, and what that means for you, alright? But you're still too young to worry about what actually happens during heats and ruts."

The boy nodded his head quickly, focusing intently on his mother's face as he ate his dinner. This was the conversation he'd been waiting for, for what he could only assume had been years. He'd finally know why everyone looked down on him, and why they said he couldn't be a warrior hero like he'd always dreamed of being.

"No matter what sex the person is, Alphas are the dominant, the ones in charge. Essentially, they take what they want and once they have it, they are possessive and territorial. They have a desire to own, to control. Betas are the level-headed second in command. They can lead if absolutely necessary, but prefer for a superior to do the actual fighting. Then there are the Omega's, naturally submissive and easily lead. Their job is essentially to find and then be owned by an Alpha." She stated, her face feeling hot. She'd hoped that her husband would give this talk, but he'd long since passed away, leaving her to cut down her son's dreams of grandeur.

Midoriya looked confused, probably thinking about what that meant for him since he was an Omega. "But, I don't want anything like that!" he cried, "and both you and dad were Beta's; neither of you needed an Alpha."

"You're still a child, Izuku. It's only a matter of time before your biology begins to dictate your actions. You've met Alpha's before and seen their behavior even before they reached maturity. You always bared your neck to them and followed their lead, didn't you? Doing what they wanted was what made you feel comfortable, safe."

"Well… I mean I guess… But they were so much stronger than me! If I got strong too, then I'm sure I'd stand up to them!" he disagreed.

"As I was saying, the sex doesn't matter for personality, but it does when it comes to their ability to carry children. For example, all females can conceive, but in order of effort required to impregnate one, Omegas are the easiest, then Betas and finally Alphas. For a female Beta to become pregnant, she needs a very strong Beta or an Alpha, and a female Alpha must pair up with an even more dominant male Alpha. Your father and I had an arranged marriage based on the citizens available and familial ties at the time. It was just luck that he was slightly more dominant than me so I could have you, but I was only able to conceive once."

"Okay…well then what about males?" Midoriya asked.

"Alpha and Beta males can't have children. They simply don't have the necessary organs to carry one. But, Omega males are gifted with both reproductive systems. Which is why you'll end up marrying a boy. You couldn't get a girl pregnant without her also being an Omega since you simply aren't dominant enough for a female Beta or Alpha, but that also wouldn't work for you. Omega's need someone to keep them safe and secure and two Omega together don't meet that requirement."

"But… I mean I guess I understand that I'll want it when I'm older… But, why does that mean I can't travel and be a warrior before settling down?"

Inko sighed again. She knew her son was smart enough to figure it out, so he must be refusing to admit the truth. "Because an un-mated Omega on his or her own is just asking for something violent and terrible to happen to them. Honestly, what do you think would happen if some random Alpha caught your scent and tried to claim you? You've already admitted that you wanted to submit to Beta's and Alpha's before, and the scent of one who desired you would be overwhelming. You'd bare your neck and offer yourself for him no matter who he was."

"Well then, how about after I mate someone?" he tried, hoping that at least that might work.

"Izuku, honey. Please understand… Once you mate you'll be tied to that Beta or Alpha forever, and it's unlikely that they'd allow something like that. Whether the union is arranged or done solely out of love, one of the main jobs for an Alpha is to protect their mate from any harm. Letting you run off on a battlefield full of other capable Betas and Alphas would be directly going against their instincts to keep you safe…"

Midoriya didn't argue anymore and went back to eating, his heart thoroughly crushed. The teen thought about his mother's words long after they'd finished dinner and headed to bed. He couldn't deny she was right. In all the times he'd played with other children, he'd always followed an Alpha's lead. Sure, if they seemed hurt or something he'd rush in to help, but that almost always resulted in them growling over him as he cowered in fear.

He sighed to himself and tried to force back the tears that threatened to fall as he curled up into a little ball. "It doesn't matter… I'll… I'll still be a hero!"

~Time Skip: 1 Year~

Izuku stood still, his hand out in front of him as he concentrated on a pebble he'd placed on an old tree stump. He willed the rock to come towards him, but it wouldn't move, it's smooth, Earthy existence mocking his attempts at minimal telekinesis. Then he moved on to fire-breathing, blowing out as much air as he could at a nearby stream, praying with all his might that the wind would ignite and prove everyone wrong.

He'd found at a very early age that he didn't have any magic abilities. Not that it was a strange occurrence -Omega's never developed any powers. That's why two Omega's copulating was so irrational. If they were ever in danger neither would be able to put up much of a fight against someone with strong magical talent.

But Izuku didn't care, he was determined to break that rule, and become a hero anyway. "It's just because I haven't been feeling well the past few days, that's all. Once I get over this cold, or whatever it is, I'll be able to train in earnest again!" he said to the water's current.

Still, after years of being told the reality of the situation, he couldn't help but lose confidence in himself.

At sunset, Midoriya left his secret area and sluggishly walked home, the weight of another failure weighing down his steps. He rubbed his upper arms, trying to ease the throbbing pain that coursed through him. It had been coming and going for almost three days, along with hot flashes and then chills, similar to how he felt when he got the flu once as a child.

"I just need rest I guess… I'll ask mom to make me some medicine when I get home. I didn't want to worry her since she already thinks I'm so fragile, but I guess I won't be able to shake this off…" he started muttering.

All at once though, he felt his body start to heat up again, a tingling sensation stirring in his lower stomach. "What's this feeling? I've never felt…This… This isn't like the flu at all…" he thought.

Midoriya glanced around and felt dizzy when his eyes landed on one of the boy's he'd grown up with. His name was Awase, an Alpha whose magic let him bind any two objects together at the molecular level, so long as he touched them first.

The boy's eyes were on him, his head cocked to the side in what looked like a predatory stare. As far as Alpha's went, Awase was kind enough and hadn't ever bullied Midoriya for his Omega state, but this look was different than he'd ever seen on the boy's face, or anyone's for that matter.

His skin burned, and he started panting to get rid of the feeling, his knees wobbling as he attempted to keep himself upright. "What… what's happening?" he whispered when he felt his eyelids starting to droop.

Awase walked over to him, each step making the feeling inside Izuku so much more intense, but also providing a weird paradox of relief. When the boy was in front of him, he let out a low growl and Midoriya tilted his head back automatically, letting his hands tremble at his sides while Awase sniffed his neck.

The elder teens smell was intoxicating as well, and Izuku let out a small whine of his own when he felt a wrist touch his nose. He breathed in deeply, shuddering at the scent that seemed to make him desperate to be touched. Awase seemed to know exactly what he was thinking and pushed him into a nearby tree, pressing his body against Midoriya's back.

Izuku rubbed his forehead on the bark, trying to clear his haze filled mind so he could process what was happening, but to no avail. Everywhere that his friend's hands touched him, the burning sensation would cease, and he needed to feel more of it.

Awase leaned his head down and nuzzled the scent gland on Midoriya's neck, humming in approval when the boys own head tilted again to give him better access. He gave a short thrust of his hips, nudging his hardening member against the boys clothed ass, pulling closer when he heard Izuku groan in desire.

He slipped his thumbs into the boy's pant loops, prepared to pull them down before he was lifted into the air by an unseen force, landing in the arms of his parents.

Izuku whined loudly from the loss of contact and turned to stumble after Awase. His mother stopped him, however, and used her magic to pull him towards her, dragging his wriggling body away from where Awase was thrashing around wildly and howling in desperate anger.

"M-mom…" Midoriya gasped in pain. The terrible heat was returning to his skin, and even increasing in magnitude.

"It's going to be okay, my poor little Izuku…" she stated soothingly.

~Time-Skip: 1 Week~

Inko sighed heavily as she sat down outside the house. It broke her heart to have to chain her son to his bed, but it had to be done. If she'd found the two just a moment later, they'd have undoubtedly marked each other.

In fact, if she'd been an Alpha, Awase would have probably sensed her presence and fused parts of his body to Izuku before she was able to use her own powers to pull them apart. Of course, no one blamed either teen.

Alpha's ruts were easy to see coming. They'd become increasingly agitated and lash out at any other potential rival while trailing closely after unmated Omegas and Betas. Heat, which is what Omegas suffered from, was harder to prepare for, especially their first one. It often just presented as flu-like symptoms until it was already in full swing or they came in contact with someone who could fulfill their needs. Of course, her stubborn son hadn't told her that he wasn't feeling normal...

It was fortunate for all of them that Awase was merely reacting to Izuku's strong, heat-filled scent rather than them both being afflicted by their biology's at the same time. That would have almost certainly ended much more violently for her and his parents after they intervened.

"Mom?" came a small, tired voice from somewhere inside. She got up from her rocking chair and headed in, silently scolding herself for not sitting her baby down sooner to talk about what to watch out for as he got closer to maturity.

"I'm here, Izuku!" she called, bringing him some food and a special tonic as she walked over. "I want you to drink all of this, okay? It will help ease the aftershock of not mating anyone."

His face reddened. This was the first time he'd been coherent since being dragged away from Awase and now that he could think properly, he realized what must have been going on. "S-sorry…" he mumbled, taking the offering.

"Oh, my poor baby, Izuku!" Inko sighed, running her fingers through his messy, unwashed hair. "You have nothing to be sorry for! It's a completely natural process that all men and women go through. I should have told you how you'd start to feel when your cycles began, but I'd hoped it wouldn't happen yet. I should be the one apologizing."

Midoriya shook his head, grimacing at the near blinding pain that followed. It was hard for her, he knew, to raise a male Omega on her own. And now that he knew just how powerful his nature could be, he finally understood what she must be feeling being a Beta without an Alpha to help her.

When he was under the influence of his heat, anything and everything Awase did made him feel secure, happy even. And yet he knew he only felt that way because of his hormones. The brunette was a nice guy, but aside from that, he didn't have any strong feelings for him. That must be what she felt like, he figured, having to marry a man she didn't love and who could barely provide enough dominance in her heat times to make her feel as he did with Awase.

"Mom, could I go out for a bit after I clean up? Or am I still… um…" he faltered, growing increasingly self-conscious about bringing up his heat with her.

"Of course, sweetie" she finally answered, taking the shackles off his ankles. "It's been at least a week since your heat started so you should be back in control; just don't push yourself too hard, your body is still adjusting to the process and there will be a lingering scent on you."

Midoriya kicked at the dirt as he made his way to his 'secret training area'. He was cursing himself for having lost control, even though he knew it wasn't something he could have prevented. All he'd ever wanted was to be a warrior, and it seemed like the last week proved what everyone else had told him all along.

He breathed in deeply, trying to clear his mind only for his nose to be filled with the scent of blood. Hesitantly, he snuck closer to where the foul smell was coming from and peered out from behind a tree.

"A man?" he wondered. "He looks so skinny and tired, but… he's definitely an Alpha. I thought they were all supposed to be super powerful though, why does this one look so weak?"

The man was tall, thin, and blonde with impossibly blue eyes. He wobbled on his feet, using every tree he passed to support what little weight he was carrying. Blood was dried on his chin, probably from coughing it up and not bothering to wipe it away. Midoriya saw how he held his side, noting that the cloth was soaked red beneath his hand too.

The mystery person gave another wet cough and finally fell forward, crumpling onto the ground like a rag doll.

Midoriya sprang into action, completely forgetting how dangerous the situation could be. He knelt down beside the heaving form, and reached out, giving him a light shake. "Hey… Mister, are you alright?" he asked.

Blue eyes flickered up, unfocused. "Where are the two following me…" he managed to say before completely losing consciousness.

Midoriya blinked a couple of times before he heard more branches snapping in the distance. Sure enough, two figures stepped out behind the thick trees, their eyes boring into Izuku with murderous intent.

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

So I'm posting this from my phone because my cats broke my computer, but never fear! I'l be back soon!

Please follorw/favorite/review!