Work Text:
"You wanted to see me, Master Mori?" Chuuya closed the heavy oak door behind him, trying not to roll his eyes at the fact that Mori required all the omegas in the school to refer to him as 'Master'.
"Ah, Chuuya. Sit." Chuuya sat. "Listen, I'm going to need you to do the health demonstration this year. Our normal model backed out at the last minute."
"What health demonstration? I’m not really...knowledgeable about that sort of thing." Chuuya was confused, but Mori just laughed.
"Oh, no, nothing like that. I mean you’ll be assisting with the demonstration for health class. You won't need to know anything, you just have to show up."
"What kind of demonstration?" Chuuya had been something of a delinquent, and his constant jumping from school to school meant that he had missed some things. He certainly didn’t remember any kind of demonstration that would necessitate an omega. Although, now that he was considering it, he did vaguely remember some of his school friends referencing a demonstration about....His face flushed as the details rushed back to him. "I’m not fucking doing that." Mori laughed again.
"Oh, Chuuya. It's sweet that you think you have a choice. You're the only unbonded omega in this school. You either do the demonstration, or you lose your job teaching here. End of story." Mori's eyes were hard and Chuuya clenched his jaw to fight back tears of frustration.
"My little sister is taking that class!" Chuuya hissed, but Mori was unmoved.
"Good. Perhaps it will help her realize her place as the head of the household and your keeper. Learn your place, Chuuya. I won't ask again. You'll be doing the demonstration with Dazai. I expect you to meet with him sometime today to discuss the details. You're dismissed." Mori's tone brooked no argument, and Chuuya muttered a 'Yes, Master Mori' under his breath before removing himself from the office as quickly as possible.
*****
Chuuya put off going to Dazai's office for as long as possible. He didn't know the man very well, and had only exchanged a nod or two with him in the hallways. He didn't think they had ever even spoken. He paused outside of the unassuming door, blank except for a black sign with white letters proclaiming the office as Dazai's. Chuuya grumbled a bit. He had to share his office with an alpha. Remembering the purpose for his visit, he knocked softly, hoping the other man wouldn't hear it.
Luck was not with him, and the door swung open silently to reveal a very tall man dressed in a simple button down shirt and slacks. His sleeves were rolled up against the warm May air and the top button of his shirt was undone, the bandages he always seemed to be wearing peeking from above his collar. Now that he was looking closer at the man, Chuuya was struck for a moment that he was rather handsome. He had never looked that closely at him before.
"Can I help you?" Dazai raised an eyebrow at the flustered omega standing in his doorway.
"Um, yes. I'm Nakahara Chuuya. Mori told me that I'm supposed to do some sort of demonstration with you tomorrow?" Chuuya cursed the edge of nervous energy that was creeping into his voice. Dazai smiled, and placed a warm hand on Chuuya' back.
"Of course. Come in and we'll discuss the details." Chuuya suppressed a shiver at the other man's touch. Chuuya sat down in a chair that was probably intended for students. It was uncomfortable and he shifted nervously as Dazai slid back into his plush office chair, looking very relaxed.
"So, um..." Chuuya began.
"Call me Dazai." Chuuya breathed a silent sigh of relief, relieved that Dazai wasn’t going to make him use titles like so many other alphas did.
"Alright. Dazai. The thing is, I never saw this...demonstration." Chuuya felt his face flushing and he took a few quiet breaths to try and still his racing heart.
"It's compulsory. Whoever your teacher was must have left it out on purpose." Dazai looked a bit irritated.
"I...jumped from school to school quite a bit. Guess I must have missed it in the shuffle," Chuuya flushed again. Dazai simply held his gaze for a few moments, before sighing.
"Very well. The demonstration is simple. I'll just be using you to demonstrate the proper care of an omega. Just the usual things, how to initiate mating, how to stimulate lubrication, and of course explaining male and female genitalia among alphas and omegas and how it differs." Dazai gave this explanation as if he was describing what he had eaten for an unremarkable meal, but to Chuuya it sounded as if he was describing the end of the world.
"I'm sorry, did you say 'stimulate lubrication'? Do you mean, on me? You're going to do that to me, in front of the entire class?" Chuuya couldn't keep the panic out of his voice.
"Yes. That's exactly what I mean. It's not as if I'll actually be mating with you. You're not near your heat cycle, are you?" Dazai seemed puzzled at Chuuya's panic. "Didn't you go through this at omega training? I thought this sort of thing was well covered there." Chuuya just tilted his head to the side.
"Omega training? What do you mean? No one has ever touched me like what you're describing before." Chuuya eyes were so wide and frightened that Dazai had a sharp pang of desire to get up and bundle the smaller man into his arms. He resisted the urge, as that would be wildly innapropriate, and Chuuya would probably have an aneurysm.
"You're telling me you've never been touched by an alpha. Or an omega. No one." Dazai couldn't help but feel slightly excited by that prospect.
"Yes. Please tell me there's some other way around this, a video they can watch, anything, please." Chuuya braced his shaking hands on the arms of the chair, gripping with all the strength he could muster.
"Unfortunately, this is a mandatory unit of health class. If the kids don't get this demonstration, then the entire class doesn't count, and they'll have to retake it over the summer, seeing as the class is all seniors. None of them will be able to receive their diplomas." Chuuya swallowed heavily at this, dropping his head into his hands.
"It's not as bad as it sounds, Chuuya. I actually think you'll benefit from this, seeing as it sounds like someone has severely disadvantaged you up until this point." Dazai stood as he was talking, resting what he hoped was a comforting hand on the petite man's shoulder. Chuuya stood after a few seconds, avoiding eye contact with Dazai.
"Right, well, I suppose I don’t have a choice. I’ll see you tomorrow," Chuuya mumbled.
"Yes, 9:00am. Also, if you're on any suppressants, don't take them tomorrow. I'll see to it that you're excused for the rest of the day to recover." Chuuya nodded and fled from the office as quickly as he could manage without running. Dazai watched him go, feeling sorry for the small omega and also excited about the demonstration at the same time.
*****
The next morning, Dazai found Chuuya huddled in an oversized sweatshirt that seemed much too warm for the weather, standing next to the door to the health class and looking incredibly miserable.
"Good morning, Chuuya." Dazai made his voice a smidge louder than necessary, and he laughed silently to himself when Chuuya practically levitated.
"What’s so good about it?" Chuuya muttered, instinctively pulling the sweatshirt a little tighter around his body and glaring at the keys in Dazai's hand as if he could will them to spontaneously combust. Dazai swung open the door, revealing a small classroom with about 20 desks surrounded by posters and models detailing male and female genitalia. There was even one horrifying poster showing the various effects of STIs. Chuuya regretted looking at that one the second his eyes fell on it.
Chuuya let out a small gasp of surprise as a swath of soft blue terry cloth fell over his eyes. He pulled the fabric off his head to see Dazai, looking amused.
"Put that on, please." Chuuya nodded and began pulling the robe on. Dazai laughed at that, shaking his head. "No, Chuuya. Take off your clothes and then put the robe on." Chuuya flushed, feeling silly. He looked around nervously.
"You...want me to change right here?"
"I suppose you can take it to the bathroom if you like, although I fail to see the point of it. It will hardly protect your modesty at this point." Dazai gave a wide grin that was more predatory than friendly, and Chuuya wasn't sure if the man was attempting to make a joke, or if he was being serious. He gave a small noncommittal laugh before moving to the corner of the room farthest from Dazai and hurriedly slipping out of his clothes, yanking the robe on and pulling it around his waist tightly. It was clean and soft, and it smelled nice. It was also rather large on him, and the sleeves fell past his fingertips, with the bottom nearly brushing the tops of his feet.
"I assume the usual model is taller?" Chuuya asked dryly, and Dazai snorted.
"I'm not sure. This is the first year I've run the demonstration. That's my robe. I realized yesterday I had forgotten to tell you to bring something, and I figured you would be more comfortable with it." Chuuya flushed at the thought of wearing another man's clothing, especially something as intimate as a robe. He idly wondered if this robe had ever been pressed against Dazai's skin, feeling a hot wave of arousal at the idea. Dazai gave him a penetrating look, and Chuuya clamped down on the feeling quickly, hoping Dazai hadn't sensed that. He had forgotten how easy it was to get distracted when he was off his suppressants.
"Morning, Dazai-sensei." A groggy voice from the doorway made Chuuya jump a bit, and he reflexively tightened the robe again. He recognized the boy as Tachihara, who was in his physics class for the second time. He was a bright boy, but he had trouble with math and science. Tachihara saw him and seemed surprised.
"Hey, Nakahara-sensei. What're you doing here?" Standing in only a robe in front of one of your students was certainly an experience that Chuuya decided he did not enjoy. He tried to push down his embarrassment but it seemed his mouth did not want to cooperate with him.
"Nakahara-sensei has graciously agreed to fill in for the demonstration today, since the usual model canceled. Now, sit down and be quiet." Dazai's tone was stern and Tachihara obeyed, sliding into his seat and turning his attention to his phone.
As the rest of the kids started to filter in, Chuuya began to shake with fear and embarrassment. Dazai pitied the little omega, but he had to do the demonstration, otherwise he would have to deal with Mori. As cute as Chuuya was, he really didn't feel like facing Mori to protect his modesty. The bell rang and Chuuya jumped violently, instinctively pulling the robe closer around his body. Dazai sighed. The sooner he could get this over with, the better.
"Alright, children. Today we finish up sex-ed. I'll be giving a demonstration. During the demonstration, you will all remain silent. If anyone makes a derogatory remark during the demonstration, you will be dismissed from class and given a failing grade. If you have a question, you will write it down and ask it at the end of the demonstration. Is that clear?" All the kids nodded. No one wanted to be kicked out. Chuuya found himself desperately wishing they they would all act out and the demonstration would be canceled. Dazai walked over to what looked to be a medical examination bench, and gestured to Chuuya.
"Come here, Chuuya." Chuuya felt a shiver run through his body as he obeyed, stopping to stand in front of Dazai. "Alright, the first thing you need to understand about being a good partner is to make your desires clear. This is best done by communicating. It is unacceptable to hit, scream at, or otherwise degrade your partner. Use a firm tone, and be clear with your meaning, and your omega will likely obey you. It's also more effective if you use their name." As Dazai was talking he reached for the tie around Chuuya's waist. Chuuya flushed and tried to grab Dazai's hands. Dazai simply smirked and pushed the redhead's hands down by his sides. "No, Chuuya. Leave your hands by your sides."
Dazai easily slid the robe off and Chuuya struggled to keep his hands still. He wanted so badly to cover himself up, settling instead for dropping his eyes to the floor. He recognized several of the kids in the class. Atsushi, Naomi, Tachihara, and Akutagawa all had taken classes with him. He especially couldn't stomach meeting the eyes of Kyouka. Although she was an alpha and technically in charge of the family, it was humiliating to have her see him in this position.
"The most important thing to remember when you're with your omega is their safety. Your job is to protect them and to take care of their needs. That goes beyond sexual needs. You need to ensure they are emotionally and mentally healthy. Praise them regularly when they do something that you like. Don't resort to punishment unless it's truly warranted. Make sure you initiate a lot of physical contact. All of these things will help reassure your omega and make them feel safe."
Dazai demonstrated by running large hands down Chuuya's shivering arms, and pulling him in close. He ran his fingers through Chuuya' hair and murmured comforting words into his ear. Chuuya's breathing slowed and Dazai smiled fondly at him. Chuuya shakily returned the smile, lifting his head for the first time since the demonstration began.
"You'll be able to tell by the scent whether they're relaxed or not. As I'm sure you all can tell, Chuuya here is emitting a much more pleasant scent. This is usually an indicator that your omega is ready for mating." At that Chuuya stiffened, but Dazai continued gently rubbing the back of his neck, guiding the smaller man to rest against his chest. The calming hum of Dazai's voice sent vibrations of pleasure and relaxation through Chuuya, and he felt vaguely ashamed that he was half hard. Dazai let a hand gently slide down Chuuya's side before it came to rest on his hip.
"Now, the next important part of the process of arousal is stimulating lubrication. In female omegas this reaction is usually automatic, but in most virgin male omegas you'll have to work it out of them for the first few times until their bodies are conditioned to respond to your scent." Dazai led Chuuya over to the padded bench and patted it. Chuuya looked up at Dazai uncertainly, and Dazai wordlessly guided Chuuya to face it before wrapping two broad hands around his hips and lifting him up so he lay on his belly on top of the bench. Dazai then slid an arm under his hips and pulled up, forcing Chuuya’s ass into the air. He gasped in embarrassment and pressed his burning face into the side of his arm.
"There are two glands in the anus of the male omega. In order to access them, you'll only need one finger. So, slowly work your finger into the anus. You need to put your finger in approximately one inch." Dazai leaned down to Chuuya' ear, whispering quietly. "I'm sorry, Chuuya, but I'm going to have to enter you. Just try and relax. It will be over very shortly." Chuuya shivered with arousal at Dazai's voice and for a moment his embarrassment was forgotten. He still gasped in surprise when he felt the pressure of a foreign finger against his entrance. Slowly, Dazai worked his finger in.
As Dazai slowly fingered Chuuya’s tight pink rim, he was grateful that he had had the foresight to take a low dose of suppressants himself. He had never been so affected by an omega before, and he had had plenty interested in him. But something about Chuuya entranced him. It wasn’t just his scent, although that did intoxicate him, but there was also something about his manner, his way of carrying himself that Dazai found impossible to ignore.
He had always prided himself on his control, but as he stared down at the graceful curve of Chuuya’s back as he subtly arched against Dazai’s finger, he was sure that in the absence of the suppressants, he would have had great difficulty in not mating with the tiny redhead right here in front of the entire class. He pushed the thought to the back of his mind, continuing the demonstration.
"The first gland is much easier to reach, but it doesn't provide as much lubrication. The second gland is deeper, and you should not try to find it with your finger alone, at least not at first. The second gland is intended to make deeper penetration easier. So, to find the first gland, you insert your finger about an inch, until you feel a ridged bump. You'll press upwards into it, and that should begin the lubrication process." Dazai spoke in a clinical and professional tone, but in Chuuya's mind he may as well have been whispering sweet nothings into his ear. He felt an immediate spike of heat that seemed to permeate his entire body when Dazai pressed on the gland. Immediately he felt a gush of wet slick, and grimaced when he felt a small trickle escape him. Dazai then pulled his finger out slowly, pressing a towel against the dripping opening.
Before Chuuya had time to protest, Dazai's hands were guiding him around so he was sitting on the bench. He almost reached to cover up his mostly hard cock but a stern look from Dazai stopped him mid-movement. He settled for averting his eyes again, trying desperately to think of anything that would help him to lose his erection.
"Next we'll be examining the genitals. As you can see here in Chuuya, most male omegas will have smaller genitals. Male omegas also have sterile sperm, of which they produce very little. Additionally," Dazai pushed Chuuya's legs open and put a warm hand under his balls "his scrotum especially is very small. He also won't derive the same sensations from it as a male alpha would." Chuuya’s arms trembled as he desperately fought the desire to cover himself. It’s not like he wasn’t aware of the biological differences between male omegas and alphas, but the fact that his biology was responsible for his tiny cock wasn’t much of a comfort to him in the moment. Dazai grasped Chuuya’s cock, stroking it a few times until it was painfully upright, and he was trembling in his fight against the urge to buck against those long fingers.
“It’s a myth that all omegas can reach climax through anal or vaginal stimulation alone. Most need stimulation on the clitoris or penis.” Chuuya’s eyes were wide with panic as he looked up into Dazai’s face. Was he really going to be forced to orgasm in front of everyone? Dazai held his gaze, his warm brown eyes drawing Chuuya in, and he whimpered, twitching his hips against the pressure of the hand that was still firmly wrapped around his cock. Mercifully, Dazai’s hand began to move, the slick that still covered Dazai’s fingers acting as lubricant.
“There have also been some interesting studies done on how orgasm makes the omega more receptive to breeding, but,” Dazai paused, turning his eyes away from Chuuya to deliver a stern look to the class, “intentionally stopping your partner from reaching orgasm is absolutely not an effective form of birth control. Now, every partner you have will be different, so you must learn to read the signs of arousal from your omega. As you can see, Chuuya’s cheeks are flushed and he’s very erect. For a female omega, their clitoris will swell as their arousal increases.”
Dazai removed his hand from Chuuya’s straining cock, struggling to keep his face neutral when Chuuya practically whined at the loss of sensation. He was charmed by the little omega’s hips, which seemed to almost instinctively thrust after his hand as he lifted it. Dazai had seen Chuuya around the school, and would never have dreamed that he would be so compliant. Despite his clear humiliation, he was still obeying Dazai’s order to keep his hands by his sides.
“The last topic we’ll cover is consent. Being mated does not mean that you have eternal consent. Your partner’s status as an omega also does not mean that. You must not engage in sexual intercourse with your omega unless both of you have enthusiastically agreed that it’s what you’d like to do.” Dazai turned his attention solely to Chuuya, gently cupping his face and forcing his heated gaze up.
“Chuuya, do I have your permission to continue?” Dazai asked. Chuuya’s head felt like it was filled with a heavy fog. He understood Dazai was asking him something, but he didn’t quite understand what it was. Dazai was close to him, his scent filling Chuuya’s nose. He smelled so good, so intoxicating, Chuuya leaned forward and tried to kiss him, but Dazai easily leaned back out of his reach. He wanted more. He wanted to feel those clever hands on him. He wanted to bury his fingers in that soft brown hair. Realizing that Dazai was still waiting for an answer, Chuuya just nodded.
“Now, as you can see, Chuuya is nearly lost to his heat, so he cannot properly consent in the state he’s in. You must ask before you engage in any sexual activities, otherwise your omega cannot properly decide what they want. However, I need to finish the demonstration, so I will be continuing.” At that, his hand returned to Chuuya’s straining cock and started gently pumping. The pleasure Chuuya felt was unlike anything he had ever experienced before, and he had certainly thrust into his own hand enough times.
No, this was all heat, all sensation, which suffused his entire lower belly and seemed to even curl a tendril in his chest. The pleasure built like a song approaching its crescendo, and he could tell that when he finally tipped over the edge, it would be unlike anything he had ever experienced before. He was vaguely aware of Dazai’s voice droning, on, but all he cared about was the man’s arm around his shoulders, holding him upright, and the hand around his cock pleasuring him.
When he came, it was the most earth-shattering orgasm he had ever experienced, exploding through his body with an electric force that tightened his body like a bowstring. He wasn’t sure if it was because he was off his suppressants, or if it was because it was the first time he wasn’t doing it on his own, but the pleasure was so intense that he realized he was moaning wantonly in Dazai’s arms, his head thrown back to bare his neck to the alpha hovering above him.
And then, slowly, it ended. He came down in intervals. First shuddering through the gentle shocks of pleasure that emanated through his cock, down to a pleasant buzz that seemed to hum through his entire body. And finally, the cold reality. He blinked the haze away as he became aware of Dazai’s hands draping the robe gently around his body, moving him as if he were a large doll to pull the sleeves on his arms and wrap the soft fabric around his shivering body.
“Your omega will need reassurance when it’s all said and done,” Dazai said, tying the belt of the robe snugly around Chuuya’s waist before slipping his arms under the smaller man’s knees and behind his shoulders. “Holding them is a good way to provide physical reassurance that you’ll protect them while they’re vulnerable.” Dazai lifted Chuuya off the bench and cradled him close to his chest. Chuuya couldn’t believe he had just had his first orgasm not from his own hand in front of a class of high schoolers, and more embarrassingly, his own sister. The humiliation was unbearable. He pressed his face into Dazai’s chest, his smell filling Chuuya’s head with a pleasant soft fog that eased it.
“The most important thing to remember is that these are guidelines. Just as every alpha is different, so then is every omega. Both are susceptible to becoming slaves to biology - but that is no excuse to take advantage of the trust of your partner. Your alpha status does not make you better than your partner, and their omega status does not permit you to treat them as your property. Now, I want you to finish the worksheet that I’ve put on your desks, and Yosano-sensei will be coming in to answer any of your questions.”
Chuuya was vaguely aware of being carried out of the room, but he couldn’t quite bring himself to turn his face away from Dazai’s chest. Dazai carried him back to his office, closing the door behind him and locking it once they were inside. Wordlessly, he sat in his chair, settling Chuuya on his lap and running a gentle hand up and down his back until Chuuya finally returned to himself enough to pull away.
“That was humiliating,” he mumbled, unable to meet Dazai’s eyes. Dazai brushed a hand under his chin and tilted his head up.
“You did very well. You allowed a whole class to graduate on time with their peers. I know all of them are extremely grateful to you.” Chuuya huffed at his patronizing tone.
“Don’t coddle me,” he grumbled, trying to push off Dazai’s lap. “I’m fine now, so...” he turned his head as he was pushing himself up, his nose nearly brushing against Dazai’s as he turned his head. He had felt sated in a pleasant and comfortable way after the demonstration (despite the humiliating circumstances of it), but now his body was inflamed again, and to his horror, he felt a dampness spreading between his legs. Dazai smirked down at him.
“Oh? Are you sure you don’t want to repeat the demonstration?” He teased, and Chuuya felt his face flush even more with embarrassment.
“Fuck off, bastard.” He shoved himself off Dazai’s lap, nearly falling to his knees when his legs wobbled dangerously below him. He had been in heat before, had spent plenty of time around Alphas both on suppressants and off, and yet he could never remember a time when he felt more off-kilter than he did now. Dazai stood, hands hovering near Chuuya’s waist as if prepared to catch him should he fall.
“Chuuya, I think we both know what’s happening here.” Chuuya braced himself on the desk with one hand, using the other to knock Dazai’s hands away.
“What’s happening is I’m going to go home and drink an entire bottle of wine.” He looked down at himself, realizing he was still wearing the robe. “What did you do with my clothes?”
“I must have forgotten to collect them from the classroom.” Dazai didn’t sound remotely apologetic about that. “If you remember, my hands were full.”
“Fuck. Off.” Chuuya snapped, pushing away from the desk and willing himself to walk steadily to the door. He was resolved to leave before the bastard could get another word in. Dazai watched the little omega go, resisting the urge to chase after him and bundle him back up in his arms. It was a different world now, and even though he often preached to his health classes that one must resist their biological urges, he was finding it very difficult to follow his own advice.
Chuuya shut the door behind him as he left, apparently resolved on driving himself home while only wearing Dazai’s robe. Dazai sighed, sitting back down at his desk and crossing his legs on top of it, turning to stare out the window while he considered what had just happened. He mentally flipped through every encounter he’d had with an omega, trying to compare those interactions with the one he had just experienced.
None of them even came remotely close. And, he didn’t think he was imagining how deeply Chuuya had been effected either. While it was true that most omegas would have some kind of reaction to an alpha ordering them, or pleasuring them, the intensity of Chuuya’s reactions, as well as his own, lead him to only one viable conclusion.
Chuuya was, without a doubt, his mate.