Archive of Our Own

Two months later, Armed Detective Agency

Atsushi was napping on the couch, curled into a little ball and purring sounds coming from him. Atop his head were his tiger ears which were twitching and a tail was flicking in his sleep. The sun was hitting his sleeping form and adding a nice glow to his skin. Everyone was silent in the office and staring at the sleeping Omega. Ranpo had a smug look to him while Dazai, free from Meursault, was scratching his head and watching his Omega sleep. He was crouched in front of his Atsushi and just watching him, trying to figure out what was going on with him.

After the heat spent together in the French prison, it hadn’t taken long for whatever plan which had been set up against the Agency to fall through. Fyodor, what a coincidence, had also gotten free. That had more to do with the fact that a weird man dressed as a jester broke him out than anything else. It had happened three weeks after Dazai had left, weird, wasn’t it?

Dazai had a feeling that Fyodor was a bit pissed with whatever had happened in the prison. Well, not that he cared, he had other matters to worry about. It had been a few weeks since then and no sign of the surly Russian man. So, roughly two months since Dazai sprung free and was back in Yokohama. The silence from the Russian man didn’t feel great, it was suspicious that there had been no sightings of him as of yet.

So, for now, Dazai could concentrate on other matters, namely his mate acting weird and Atsushi napping more than he usually did. Atsushi had even snapped at Kunikida at one point which had everyone paying attention immediately. Ranpo had just snickered, munching on his gummy bears and given them a knowing look. Dazai had a feeling that he was missing something there but what?

It is safe to say, they were stumped and Yosano had taken to watching Atsushi closely lately. It really wasn’t normal that the docile Omega had snapped like that at Kunikida, Dazai would beg to differ and claim that it was about time but no one asked him. A shame, really. He had also been surprised when Atsushi had snapped like that, the boy even baring his tiny fangs at the blond Beta. Kyōka had tilted her head to the side and hummed, eyes trained on her pseudo big brother.

Really, it had everyone on edge. Tanizaki had figured it was some kind of ability that had taken over sweet Atsushi but the moment that Dazai had touched him, Atsushi had glared one last time at the blond before cuddling into his Alpha’s side. There was also a hiss but no one spoke about that. They were flabbergasted by the behavior, simple as that. So, clearly an ability was ruled out, Dazai’s touch should have nullified it but nothing changed. Atsushi was hissy still and glared a lot, only Dazai and Kyōka were save.

“You can add to weird behavior that he doesn’t let anyone close but Dazai and Kyōka-chan, apparently,” Tanizaki spoke, waiving his bandaged hand. “His bite hurts…”

“Nii-sama, let me play nurse to your patien-! URhg!” Naomi found herself being silenced by Kunikida.

The blond was red in the face, having put his hand over her mouth, “And that’s enough of you, Naomi!”

Ranpo snickered, very much amused with everything, “Oh boy, just wait the next few months up!”

Heads turned to look at Ranpo in confusion, what did the green-eyed man mean with that, huh? Kyōka narrowed her eyes, looking between Atsushi and Dazai, then to Ranpo and repeating it a few times. She had a nagging feeling at the back of her mind, `What does Ranpo-san mean…?´

“Atsushi-kun?” came Dazai’s startled voice, making her look at the couch again. “What are you-?”

“Hm…” Atsushi had woken up, blinking cutely at Dazai before dragging the man onto the couch with him. “Better…”

Dazai flushed a little at how easily Atsushi had manhandled him onto the couch. The Omega using him as a pillow and nuzzling close to his neck, scenting him. There was even a tongue lightly licking at his neck and a content sigh was let out. Atsushi was already closing his eyes again and purring even louder.

“Pff-!” Ranpo snickered from his desk while Kunikida looked so done. “There won’t be any work done today, Kunikida~!”

“I just want one normal work out, is that so too much to ask for?” the Beta wanted to strangle something.

He knew that Dazai was save as long as Atsushi was laying on him. Kunikida wouldn’t get between a testy Omega and his mate, especially when said Omega turned into a giant tiger that could eat him. There was no need to tempt fate like that, thank you.

A few days later, Agency

“AHA! I KNOW WHAT IS GOING NOW WITH OUR TIGER-BOY!” Yosano came bursting into the offices, her hair a mess and her clothes rumpled but a smug glint to her eyes.

Said Tiger-Boy was actually not in and staying home with Dazai, something about throwing up and not feeling well. Of course, Dazai used that as his chance to stay away from work too. What kind of Alpha would he be to leave his sick Omega alone like that, no? Kunikida couldn’t even do anything about that, Dazai had gloated a little about it. Kyōka had rolled her eyes when she had overheard that call, she was now living with Yosano because no teenager girl should live on her own.

Atsushi and Dazai hadn’t taken long to move in with each other, really. There had been bets when they had first started courting how long it would take. Kyōka had wagered 4 days and Ranpo 3 weeks, you can guess who in the end won.

“What is wrong with the brat then, Yosano-sensei?” Kunikida asked, looking up from the report he was reading. “How did you figure it out anyways?”

“Ha, easy!” she stood with her hands on her hips, striking a pose. “I used the physical I have you guys do every month and drew some blood from Atsushi-kun. Blood never lies and I go the results back just now.”

Ranpo, surprisingly, was working on a report of his own and not paying any attention to what was going on. Tanizaki and Naomi, having just entered, stared bug eyed, Tanizaki, and eager, Naomi, at Yosano. They would rather forget that physical that Yosano did, everyone did, honestly.

“And? What does it say? Out with it, woman!” Naomi demanded, always ready for some good tea. “What’s up with, Atsushi-kun?”

“Naomi!” Tanizaki gasped. “You can’t just-!”

“I can and I will, it is for the greater good, Nii-sama!”

“Right you are,” Yosano nodded, turning to the brunette girl. “You won’t believe it-!”

Meanwhile with Atsushi and Dazai

Dazai watched as Atsushi had turned their bed into a giant nest. Every pillow and blanket they had, it was put on it and arranged in such a way that Atsushi seemed to like. Dazai hadn’t even dared to try and help, Atsushi hissing at him that had kept the Alpha away. The bandaged man knew when to pick his fights and this was one, he knew he couldn’t win. Instead, he just watched his mate do as he pleased. There was a humming coming from his Omega and he seemed a bit better since his throwing up from earlier.

Dazai had really been worried when Atsushi had rushed to the bathroom like that after breakfast, it was weird. Normally, Atsushi could eat just about anything but today, he couldn’t. It worried him, Atsushi never wasted food like that and never stuffed himself until he threw up, so he was sure that his white-haired mate might be sick.

“Atsushi-kun,” the Alpha tilted his head to the side, watching Atsushi settle in the nest he seemed done with, “do you need anything?”

Atsushi, having settled right into the middle of the nest, looked at Dazai. There was a confused look on his face which Dazai found adorable and he had to fight the urge to coo at his mate. Purple-gold eyes blinked at him before Atsushi let out huff and making grabby hands at Dazai. `Ah, it’s such a day, is it?´ Dazai idly wondered and quickly settled into the nest, Atsushi snuggling into his side. He could feel the Omega melt into his side and a purr leaving the white haired one’s throat.

Dazai felt his own rumble leaving his chest, anything to have his mate relax and melt into his body more. Dazai took a deep breath and frowned a little, `Hm… strange… There is no sickness clinging to Atsushi-kun’s scent…´

“Osamu,” Dazai peered down at Atsushi who nuzzled even closer to him, throwing a leg over his hip and clinging tight to him. “Wanna stay here…”

Humming, Dazai felt his lips twitching upward, “We can, if you want to, Atsushi-kun! Not even Kunikida-kun can make us go to work.”

There was a hum in answer and Dazai could feel Atsushi grow lax and then there was light purring heard from him. `Ah, like a kitty!´

“What’s that weird smell though…?”

A few days later

Atsushi and Dazai were both back in the office and Atsushi was clinging to Dazai. That was a new one, really. Normally, it was always the other way around, Dazai clinging to the white-haired Omega and whining about being ignored. Now? Atsushi refused to leave Dazai’s side and even bit at anyone that tried to get him to let go off his Alpha. There were also some weird looks thrown at the two from Tanizaki, Naomi, Kyōka and Kunikida, it irked Atsushi.

They all had this weird look about them, like they knew something he didn’t. It made the tiger inside of him all growly and he had even tried to bite a passing Tanizaki. The poor redheaded Alpha was cowering behind Naomi who had given Atsushi a weird look. He didn’t like it, the whole office felt off and he felt weirdly exposed. Only being on Dazai’s lap, being close to the man, it kept him somewhat calm and settled. Yet, the looks made his hackles rise and he was this close to growling at them.

Dazai had wrapped his arms around him which had helped a little with the antsy feeling but it wasn’t enough. The office felt wrong right now and Atsushi just wanted to be back home in his nest. He twitched when he felt another pair of eyes on him, burying his head into Dazai’s chest.

“Hmm,” Dazai hummed, eyes narrowed.

He had noticed how weird the whole office had been behaving since he and Atsushi had walked in. It was hard not to, really. One had to be blind to miss it, Kunikida was looking weirdly at them, Naomi had this weird glint in her eyes, Kyōka was more silent than usual and Tanizaki wasn’t subtle at all. It annoyed Dazai, a lot. It was like they knew something which he did not and it was beginning to piss him off. Especially, now that they were pulling his Atsushi into this.

Ranpo, so far, was the only smart one and acted the same. Good for the detective, Dazai held tighter onto Atsushi when he heard a very low whine coming from him.

“Osamu,” he twitched when he heard the low whisper, barely hearing him. “Not safe!”

Dazai stiffened, glancing around the office. He ignored the looks the others shot him. What wasn’t safe for his Omega? What did Atsushi mean? Their colleagues, and friends, were acting weird, sure but to say that the office isn’t safe?

“Nest…” came the low whine, Dazai standing up abruptly.

Everyone startled at that, watching with wide eyes how Dazai strode out of the office, Atsushi secure in his arms. Naomi was wide eyed while Kyōka and Tanizaki tried to follow, Ranpo held them back. The detective shook his head, shooting them a warning look while Kunikida was sputtering. There hadn’t even been any paperwork done yet by those two!

Dazai and Atsushi were quickly out of the door, leaving a tense silent in the room. It was broken by Ranpo who shook his head at them.

“Well, I told you to behave yourself,” Ranpo sounded annoyed with them. “I told you to act normal and what is that you do? Act like idiots!”

“How were we supposed to know that they would react like that?” Naomi whined, she had wanted to hear from Atsushi and Dazai about the news, really.

“Using your brain, for one?” Ranpo huffed, crossing his arms. “I mean… Yosano only knows because she had his blood work done but you really think Atsushi knows it yet?”

There was another silence, broken by Kunikida, “Don’t tell me his instincts let him act like that?”

“Indeed, add the tiger to that and you have one antsy Omega with high driven instincts and you people acting like a threat to him.”

“Ah…” Kyōka blinked and then frowned. “Oh… We set him off, didn’t we? He has no idea why…”

“Exactly, I won’t be surprised if neither is coming back for another few days and we have to send Yosano in,” Ranpo clicked his tongue. “Dazai’s going to be prissy too now.”

“Oh god, overprotective Alpha,” Kunikida groaned, remembering when Atsushi and he had first mated. “It’s going be to like those weeks again, isn’t it? That bandaged fished eyed-!”

Ranpo tuned him out, having already heard that rant once. He was pretty sure that Kunikida was also a bit jealous because Dazai got himself a partner before him, despite being the way Dazai was. It had also Ranpo stumped that Atsushi would take Dazai as his mate and actually manage to keep him.

Then again, Dazai was totally whipped for Atsushi…

With Dazai and Atsushi

Dazai had hurried down the streets of Yokohama, a terrifying aura surrounding him. Anyone that saw him, the dark expression, the fury in his scent and how he cradled Atsushi close to his body, they jumped out of his way. Some women were muttering to each other while elderly looking women sighted wistfully. They knew a time where their mates had done the same, how cute!

Dazai ignored any and all looks, those that didn’t avert their eyes, they got growled at. Atsushi had snuggled into his arms and was peeking at their surroundings, otherwise silent. He couldn’t really feel save until he was in his nest again. The tiger in him was also restless, never mind that his instincts were yelling at him to get to safety.

While the two, well Dazai really, were rushing down the streets of Yokohama, a certain red-haired dwarf was watching them. Blue eyes were narrowed while one eyebrow twitched.

“Fucking bastard,” growled the man, jacket fluttering in the wind.

“Chūya-san,” came a cough from behind him, a man dressed in a dark coat, no eyebrows and white tipped bangs frowned at him. “Was that our target?”

“No, Akutagawa,” Chūya waved him off, scowling and watching Dazai walk down the sidewalk. “Just a fucking Mackerel pissing me off.”

Akutagawa’s head snapped in the direction the redhead was looking, “Dazai-san?”

“Oh my god, I forgot that puppy love you held for him,” the man groaned, facepalming. “Fucking-!”

Akutagawa ignored him, eyes fixed on the walking form of his ex-mentor. There was a dark look on his face when he saw who his ex-mentor was carrying. `Fucking Jinko! That useless fur rug, making Dazai-san carry him like that! How dare he-?!´

“Don’t even think about-!” Chūya snarled but it was too late, the short-tempered Beta was already off.

“JINKO!” Chūya groaned at the snarl and made to follow him.

“AKUTAGAWA, YOU FUCKING IDIOT-!”

Both mafiosi were running now, Dazai having ducked away and taking a shortcut back home. Akutagawa was hot on their heels while Chūya was just so fucking done. Why did Akutagawa’s brain also have to fry when Dazai was involved? Never mind that Jinko that he was muttering about all the time.

“Fuck-!” Chūya cursed when Akutagawa suddenly used Rashōmon to catch up with Dazai. “When I get my hands on you-!”

Using his own ability, Chūya was more surprised that they hadn’t caught up with Dazai yet. Fucking Mackerel, always being a few steps ahead, huh? Even with the help of their abilities, it took some time for them to finally catch Dazai and his newest mentee. Both were about to enter a building and Akutagawa landed in front of them, a thunderous expression on his face.

“Dazai-san-!” he was about to speak, only to get drop kicked by Chūya who used his gravity to help him.

“YOU FUCKING IDIOT-!” he roared, shaking his fist at the prone figure on the floor. “WHAT THE FUCK DO YOU THINK YOU’RE DOING, HUH?”

Dazai’s face, which had been at first blank, was now looking murderous while Atsushi looked curious at the two. He still didn’t make a move to have Dazai put him down and he swooned a little at that. Dazai had carried him home since the Agency and not once let him down, `Strong Alpha, so good for the cubs!´ Atsushi startled a little at that thought, furrowing a brow in confusion. He didn’t notice how Dazai had stepped passed the two idiots and was now inside their building.

`Great, the slug and the mutt, what the hell are they doing here?´ Dazai adjusted his hold on Atsushi a little, making his way to their apartment. His mind was racing and trying to think of why Chūya and Akutagawa were there but nothing came up. Maybe it was a chance meeting? If so, it certainly had a shitty timing. `Hm… I should make sure that they stay away.´

“DAZAI-SAN-!”

“YOU LITTLE FUCK-!”

Two weeks later, infirmary

Yosano was looking at Atsushi who looked back at her, Dazai sitting with them. Ranpo had finally grown tired of the office being idiots and setting off Dazai and Atsushi’s instincts. As such, here Yosano was together with the two mates. She could understand Ranpo’s frustrations, Dazai and Atsushi’s instincts were going high wire and their colleagues always set them off. It had gotten so bad that even Fukuzawa had wanted to know what was going on.

`Maybe it was a mistake to tell them… but I figured the two knew already,´ Yosano eyed the two, both looking at her. One in confusion and the other in suspicion. Then again, `Atsushi-kun grew up sheltered and he is still learning as he goes and Dazai-san… Well, he never figured he would get to this point in his life, did he?´

Sighing, Yosano straightened herself up in her chair, “Alright you two… You two have no idea why you are here, do you?”

Atsushi and Dazai shared a look, both shaking their heads at her.

“I figured that night be the case,” Yosano sighed, groaning a little. “I hadn’t thought that you two wouldn’t have noticed it yet… Then again, Ranpo demanded it of me that I tell you… I did start that weird behavior of our colleagues.”

Dazai narrowed his eyes at her, “Depending on what you might say… Will I like it?”

“Don’t worry, you won’t go and kill me,” Yosano spoke in a dry tone. “I am sure that you will be more surprised than anything… So, I will keep this short… Congratulations, you two! Atsushi-kun is pregnant, you will be parents in a few months!”

“I- Whut?” Dazai blinked and then his brain fried.

Atsushi’s eyes had widened and his face had gone blank. He wasn’t moving while Dazai seemed to have fainted while sitting upright.

“Impressive,” Yosano was impressed by that feat, glancing at the unresponsive Atsushi. “… I should keep an eye on that.”

Well, at least neither of them screamed, right? That was a plus, no? Yosano sighed again, today would be a long day, wouldn’t it?

Atsushi, roughly into his fourth month of pregnancy

Atsushi, banned to his desk and only allowed to do paperwork, was slowly beginning to show. The bump was growing with each passing day, or so it felt like, and Dazai was always hovering around him. The Omega didn’t seem to mind, in fact, Atsushi relaxed all the more when Dazai was around him. As such, Kunikida could only grit his teeth because that also meant Dazai was of no use in the field. The Beta had grumbled but it was for Atsushi, wasn’t it? He could deal with Dazai catering to Atsushi, as long as the Omega and baby were healthy.

Atsushi was still a bit hissy and didn’t let anyone but Dazai and Kyōka close to him. Ranpo had started a betting pool about the gender of the baby. He wasn’t allowed to participate, as was Yosano, that didn’t stop him from starting it. Funnily enough, even Kunikida and Fukuzawa joined in. There was a lot of money in the pot currently, even the whole of café Uzumaki was in on it and then some other people.

Poe, funnily enough, had also taken to betting as had a few past clients of theirs or the newest ones. What? The Agency was liked and well, a new baby? Who wouldn’t want to take part in that? It was all in good fun, no?

Naomi was shaking her brother, squealing about babies and whatnot. Kenji had gushed about it, comparing it to a memory from back home and a gruesome birth of a lamb. No one asked for more details, Kenji’s mind works in mysterious ways, alright?

“Atsushi-kun,” crooned Dazai, nuzzling into his mate and breathing in his scent. “How about a break, hm?”

There was a growl coming from Kunikida, only for the blond to be hushed. There was a hissed word and a huffy respond to that. Dazai ignored it, like he always did when Kunikida said something, and focused his whole attention onto Atsushi.

“Hm,” Atsushi hummed, blinking at the screen and then frowning a little. “I could eat…”

Dazai beamed, “How about a brunch, then?”

Naomi squealed, shaking her brother when she saw how cute the two were acting. Tanizaki was trying his best to free himself from his sister’s death grip, it was no use.

Atsushi perked up at that, “Oh… Meat?”

“Sure, sure~!”

In a matter of seconds, both were gone and a growly Kunikida was left behind. The blond whirled around and focused his whole ire onto the others. For once, Yosano actually gulped while Ranpo ducked underneath his desk. `Ah, the drawbacks…´ Naomi and Tanizaki had frozen in, not daring it to move. Maybe Kunikida wouldn’t see them then?

“YOU FOUR-!” Kunikida roared, hands twitching and making weird gestures. “YOU WILL PICK UP THAT SLACK! ENCOURAGING THOSE TWO-!”

Atsushi’s fifth month of pregnancy

Dazai was growling, standing in front of Atsushi who was peeking over his shoulder. Chūya and Akutagawa had shown up in the Agency, something about a mission for the Double Black and their successors. Ranpo had hurried into the president’s office, better act fast before a bloodbath would be started in a few. The eyebrow less emo and the redhead were surprised by how hostile Dazai was being. That was something new about the ex-Port Mafia executive.

Yes, Dazai could be dangerous but he mostly hid it behind his carefree persona or being a goofball. Now? Dazai was outright growling at them and baring his teeth, eyes glaring and a dangerous aura around him. Akutagawa had stiffened at the sight, suddenly having flashbacks from his training days and how ruthless Dazai had been. More than one time, the mafioso was sure he would have died if Dazai had felt like it.

Chūya growled right back at the Mackerel, like fuck would he get himself intimidated like that. Dazai being a fucking Alpha or not, Chūya couldn’t care less about. He might just be an Omega but he was just as strong as any Alpha. That might also have something to do with the lab but Chūya would rather not remember nor think about that time. It gave him certainly an edge when it came to fights and he was going to use it here too, damn it.

“Fuckwit,” he growled out, stepping closer and wrinkling his nose. “You reel your scent in, I will fucking barf if you keep that up!”

Dazai actually snapped at him, drawing up to his full height after and his scent heavy with anger. It burned in Chūya’s nose, he idly wondered what the Betas must feel like. Betas had good noses, sometimes even sharper than an Alpha or Omega. If Chūya wanted to barf at the smell, what must the few Betas in Agency feel like? He dared it glance at them and saw them grimace, `Fucking egoistic asswipe!´

Akutagawa was holding his nose close and coughing, his eyes watering at the smell. He shuddered when he tried to breath and the scent just got sharper. Whatever their boss wanted from them in working together with the Agency right now, Akutagawa was debating with himself if it was worth it. Sure, he wanted to be acknowledged by Dazai, have his full attention but like this? No, thank you!

Kyōka and Kenji, both in the office right now, exchanged wary glances. Atsushi seemed to be the only one at ease right now. Then again, he was mated to Dazai and very pregnant by the man. Of course, nothing Dazai did would get him to lose it right now. They sighed and prayed for Ranpo to hurry up already, where was Kunikida when you needed him? The man was, sadly, out with Yosano, both were on a case.

“Slug,” Dazai growled in warning when Chūya dared it come closer, a bite to his voice not heard before. “I’ll break your bones where you stand.”

Chūya bared his teeth, “Oh yea? Wanna go? You’re fucking useless and wouldn’t even be able to land a hit on me!”

Akutagawa stiffened, his eyes going wide when Dazai took a step closer and he finally saw the Jinko. Akutagawa knew he was many things, a blockhead when it came to anything romantic or sensible handled plans. `But not even I would be stupid to aggravate an angry Alpha mate with his pregnant Omega…´ the man swallowed, he had heard the whispers about the Jinko and his ex-mentor being closer than he had first thought.

It was one of the things that pissed him off so much about Dazai’s newest protégé, why did the Jinko get to have Dazai like this while Akutagawa was being scorned? Dazai was softer, gentler towards the white-haired nuisance than he had ever been to Akutagawa. The black-haired man doubted it was because the Jinko was an Omega, he had seen how Dazai hadn’t cared about anyone’s gender like that and treated them all the same. So, to see Dazai act all soft like that, it had irked him and angered him.

Nakajima Atsushi had not been deserving of such soft and gentle acts, simple as that. Akutagawa tried his damn best to show the Jinko that, reminding him of it any time he could. The Jinko gave as good as he got though, Akutagawa hated that about him. Then, the news about the possible mating between those two. It wasn’t a good day for him but to now see that it also took fruit. Well, Akutagawa would have a freak out about it later, `I have to make sure we are not losing an executive right now… The boss will not be pleased about it, if I let it happen!´

“Chūya-san,” he hissed, eyes darting to an angry Dazai and then to a pissed off looking Chūya. “Don’t do it-!”

“Let me deal with that walking mess!” Chūya snapped back, baring his teeth at the Beta before glaring right back at Dazai.

Akutagawa stiffened when he heard the growl and he began to sweat. Fuck, there was no stopping Dazai if he really went for it. Having to deal with an angry Dazai was already bad but an angry Dazai that was mated? Yea, no dice about that.

“Chibi!”

Chūya had no time to react before Dazai was on him and Akutagawa was taking down with him. Dazai would not be taking any prisoners. Atsushi, calm as he can be, had watched the whole scene and didn’t even think about getting between that. What? It was a little payback for what Akutagawa had done on their last mission, when he was still allowed to work on the field, alright?

Call Atsushi petty but damn it, it filled him with satisfaction to see Dazai tear into Akutagawa and take that tiny redhead down. He had no idea why it pleased him that also the redhead got his ass handed to him.

“What is the meaning of this?” came Fukuzawa’s booming voice, ignored by Dazai who wouldn’t let up on his two victims. “Anyone mind explaining to me what this is all about?”

Ranpo peered out from behind their President, “Ah… we’re too late… Nothing will stop him now…”

Atsushi’s sixth month of his pregnancy

Dazai, and Atsushi, had both been forbidden from entering the Agency again since that incident with the Port Mafia members. Chūya and Akutagawa had to get treated by Yosano when she came back and well, there was a lot of yelling from Mori’s side. Fukuzawa ignored it mostly, not even trying to explain what had happened and the two attacked had been given a warning to keep their mouths shut about Atsushi’s pregnancy. It was a wonder that no one in the Port Mafia had found out until now.

Yosano had been very detailed in her threat, using a PowerPoint presentation to get her point across. Chūya and Akutagawa had readily agreed to keep silent. They had also made sure to avoid Dazai for a time being, the Alpha was still all growly when he just saw a picture of the two. Weird but Yosano figured it had something to do with Atsushi’s dislike of Akutagawa while Dazai couldn’t stand Chūya.

Something about hormones and pheromones wrecking their brain up. Dazai had been all too eager to stay home and keep his pregnant Omega entertained while Atsushi took that as his time to start nesting even harder.

This is where Atsushi was currently, resting in the nest with Dazai staring at him.

“Atsushi-kun,” Dazai’s eyes were focused on the straining shirt his Omega wore, specifically Atsushi’s swelling breasts, a tiny handful, “you’re wet…”

Atsushi blinked, lifting his head from the pillow it was resting on, “… Osamu… We’ve talked about this… Some male Omegas start lactating while others just don’t… It usually starts around the third trimester, for some even earlier in some cases. It isn’t that unheard of, Yosano-san told us as did my Omega gynecologist.”

“… That’s weird,” Dazai squinted his eyes, arms crossed. “Atsushi-kun, with tiny and wet breasts…”

“You make it sound so lewd, Osamu, honestly. It is natural,” Atsushi rolled his eyes, “How do you think I feel with them leaking like that? It’s a weird feeling and they are so tender…”

“It’s a talent!” Dazai looked him in the eyes, “Do they hurt?”

“Ah… Not really? It’s just a weird feeling,” Atsushi shrugged, sitting slowly up. “Why do you ask?”

“Just curious…” there was a short silence, it was quickly broken by Dazai. “… Do you think you will get to keep them?”

Atsushi deadpanned at the look on Dazai’s face and sighed, “No, I won’t… They’ll probably go away when I am done nursing our cub.”

There was a hum, “Huh… Alright… Atsushi with tits is already weird enough, I like you without much better!”

“Osamu,” Atsushi shook his head at his Alpha, said Alpha just grinned.

“You love me like this~!”

Atsushi rolled his eyes at the smug Alpha; he was about to open his mouth and say something when Dazai was suddenly standing up. He startled a little at that and watched with wide eyes as Dazai sat down next to him. What was his Alpha up to now? The brunet’s eyes not leaving his baby bump which had grown a bit larger. He watched as Dazai slowly put one of his hands on the bump, a hum leaving his lips and the Alpha gently rubbed along it.

Atsushi couldn’t help himself and started to relax, a purr leaving his throat which was answered by Dazai’s own. `Ah, I could get used to this… just without the weird leaking though,´ Atsushi sighed, relaxing into his nest.

“Ah… They’re active,” Dazai hummed, rubbing tiny circles where he could feel a kick from their baby.

“They always are when you are around,” Atsushi sounded amused. “It’s like they want your attention, Osamu…”

“Ha, I’m already the favorite!” Dazai grinned, giving Atsushi a quick kiss when his Omega pouted at him. “Don’t pout, pretty one~!”

“If you’re the favorite, then you can change all the diapers!” Atsushi told him, pouting harder. “I can only look pretty then.”

Dazai sputtered at that, shooting his lovely Atsushi a betrayed look.

Atsushi’s seventh month of pregnancy

Atsushi and Dazai looked at the apartment listing that Kunikida had given them. They were seated on their couch, Atsushi tucked into Dazai’s side with the Alpha absentmindedly stroking over his bigger bump. The Omega was purring low in his throat and nuzzling into the other. Dazai was humming, looking through a list that Kunikida had given them earlier that day. `Kunikida-kun always coming into a clutch… I should be angry at myself for forgetting about this,´ Dazai mused to himself, crossing already a few apartments out mentally.

Earlier this morning, the blond Beta had handed them a list for apartments, he had stopped by before work, and given the two a long and overdue talk about appropriate housing for their little family. If Atsushi and Dazai were honest, they hadn’t really thought that far ahead yet, never mind thinking about moving out of the dorms. It had never crossed their minds, why should it? This pregnancy had come as a surprise, yes, but the dorms had been enough for them, no? Well, not for three, it wasn’t anymore, now, was it?

The dorms were fine for living either alone or together but as a family of three? No dice, there were just not enough rooms. As such, Kunikida had taken it upon himself to find them apartments and made a list that would work well for them. Dazai was already looking through them, his lips pursed.

“Kunikida-kun is a blessing,” Dazai muttered, glancing at a few boxes that had begun to stack up behind their couch. It was filled with a lot of baby stuff, some gifted and some bought by them. “I thought we’d have to use his dorm to house all the stuff.”

“Osamu!” Atsushi gasped, shaking his head at the man. “Why Kunikida-san’s dorm and not my old one?”

“His is closer,” Dazai shrugged, already discarding some apartments. “Say… Atsushi-kun, do you want to rent or have our own?”

“There’s a difference?” Atsushi asked with a tilt of his head, looking up at him.

“Indeed,” came the hum, Dazai was already crossing a few more out. “In the long run, cheaper for us but also more work that we would have to put into it. If we pay rent, our landlord will have to take care of a lot of stuff, like leaking pipes, you see. If we buy it, to own it, we would have to cover such costs which could hinder us.”

“Huh, I wouldn’t mind either, I guess?” Atsushi shrugged, wiggling a little around to get more comfortable.

“Ah, Atsushi-kun, always so agreeable,” Dazai sounded fond while Atsushi jabbed him in the side. “I wasn’t being mean about it! So cruel of you~!”

It did give Dazai an idea though…

Atsushi’s eighth month of pregnancy

“… Do I even want to know how you managed this?” Kunikida asked, staring at house that Dazai had ordered them all to come to.

“Eh, it might be better that you don’t, plausible deniability and all that,” Dazai waved him off, a wide grin on his lips.

Yosano snorted while Ranpo whistled impressed, “A house, eh? That is certainly telling.”

Naomi and Tanizaki were staring with wide eyes. It wasn’t a small house either, it looked like a little estate, with high walls and a fancy gate too. The roof and walls looked new while the garden needed a good weeding, something that Kenji was already gushing about. Dazai let him while Kyōka was marveling at how big the house was.

“Dazai-san will breed Atsu-nii a lot,” the girl deadpanned, ignoring the shocked cry from Kunikida or the choking sound from Yosano who tried to stifle her laughter. “Understandable, Dazai-san is a pervert.”

“Kyōka-chan understands me!” Dazai beamed, only to get hit over the head by Kunikida. “Oww!”

“Fucking pervert! What does the brat see in you?” the blond looked disgusted at him.

Speaking about Atsushi, the Omega wasn’t around because Fukuzawa had volunteered to watch over him. The older Omega figured anything was better than getting dragged into the shenanigans of Dazai. Atsushi hadn’t minded staying behind with the man, something about packing up their belongings. Dazai had only told Atsushi that he had found them a place to stay and was getting it ready for them.

As such, it would be easier for his pregnant mate to stay behind and just pack up the light stuff. Most of their things were already in boxes, the things for their baby, but they still needed to pack up their clothes and other such things they wanted to take with them. The furniture would stay behind, Dazai had already made arrangements for new things to be brought in.

Don’t ask how he did it, there are some things you don’t want to know about. Chūya’s little credit card certainly had a work out on that day. Dazai smirked at the memory of purchasing everything he needed, why use his funds when others worked just as well? It was a little payback for what had happened a while ago. Chūya wouldn’t mind, especially when it would let him keep his life.

“Alright, so what do we need to do?” Yosano asked, having sobered up from her laughter.

“Glad that you ask!” Dazai turned to her, Kenji already making his way through the garden. “Kenji-kun is taking over in making sure the garden is up… I need help cleaning out the last few things and renovating the rooms.”

“We can certainly do that,” Kunikida was already pulling his notebook out. “You have everything here, I presume?”

“Of course~!” Dazai grinned, again, Chūya’s credit card had come in handy. “As if I would call you all here without preparing anything first!”

“Wouldn’t be the first time,” Ranpo called out, hands behind his head. “I remember a few missions and that one party you were supposed to organize, no?”

“That was when I wasn’t mated and not going to be a father,” Dazai waved Ranpo’s words off.

“That was three months ago,” came the deadpan from Kyōka and Naomi.

“Details~!”

Dazai grinned at the looks that earned him before turning on his heel and walking up to the front door. He quickly unlocked the door and left the door open, the others quickly followed behind him. Kunikida was impressed with how well cared the house was, the wooden floors looked brand new, the walls were stripped bar and the kitchen also looked new that was installed. He looked at Dazai’s back, `… How the hell did he manage to get this set up this quickly in a matter of weeks?´

Kunikida had a feeling that he didn’t want to know the answer to that. There was even a door leading to a basement that had a washing room, the walls and floors were tiled with two drains set up in the floor. There was nothing else down there.

A quick tour of the rest of house showed that it had two bathrooms, one with a tub, a shower and a toilet, the other just a shower and a toilet. There was a huge pantry right next to the kitchen, Ranpo was already thinking about all the snacks one could horde there. Never mind that he didn’t, wouldn’t, live here. The living room was huge, Yosano and Naomi had volunteered to take care of it while Kunikida and Ranpo would take care of the hallways. That left Kyōka, Tanizaki with Dazai to set up the five rooms left, two of those would become bedrooms and the others to be decided.

“This will take a few days,” Kunikida muttered, putting some wallpapers up while Ranpo made sure to cover them well in wallpaper paste.

“Hm, all the drying and then the painting… Not to forget the furniture to be set up,” Ranpo had his tongue sticking out while cover the wallpaper. “Urgh, Dazai is a slave driver!”

Kunikida grunted in answer to that, concentrating in putting up the wallpaper as it should.

Yosano and Naomi had it easier, there was already wallpaper up in the living room, they just had to change the papers on the sliding doors. Those had been either cut or already punched through. The task was just as annoying to do though.

“Dazai fucking owes us for this,” Naomi glared, paper sticking to her hair. “Urgh! Why do we have so many doors to fix in here!?”

“It does lead to the garden,” Yosano pointed out, lips twitching in amusement. “Sure, we have those glass sliding doors too…”

“Yea, but whoever owned it first, they also kept the papers one in the living room,” Naomi scowled, looking through the ‘open’ door into said garden. “Couldn’t they have just changed those into glass ones instead of just having the outside changed?”

“That would have been too easy,” Yosano pointed out, carefully putting the paper down. “It does look pretty though, no?”

“… It does,” Naomi grudgingly admitted. “Doesn’t mean I like it…”

There was a little wooden deck, enclosed in glass. Kind of like a winter garden but not. It sure would look pretty when summer was in and those glass doors were open, Yosano imagined. The two could see Kenji tearing through the garden. The blond boy looked to be in his element and he was grinning wide.

“At least, someone is having fun,” Naomi cursed when she got a papercut. “Motherfucker-!”

Three weeks later

The house was finally done, everything was set up and even their stuff was put away. Not that Atsushi had been allowed to do much but sit tight and look pretty. Dazai had put everything away on his own, not letting anyone else touch their things. It had something to do with scents and hormones, when Kyōka has asked about it. She had wanted to help and surprise her big brother before he got to see the house but Yosano had advised against it. It might have been better that way, Dazai had begun to get testy the closer they got to finishing the house.

He had growled a lot more and snapped at them until they were all done and had left the house. Kunikida and Yosano had sighed at that, territorial behavior like this was typical of an Alpha the further along their Omega got in their pregnancy. It wasn’t like Dazai could do anything about it, Ranpo had just snickered and filmed. Something to hold over Dazai’s head when he was more like himself then.

So, when Atsushi had finally seen the house, he had gaped it. The surprise had overwhelmed him at first, never mind the tour of the house. Boxes stacked in the rooms, yet to be put away by them. The huge living room already set up with a comfortable and huge couch. The kitchen that was fully stocked plus the pantry that held everything they could need. He had seen a lot of sweets in there and figured that was Ranpo’s doing.

Tanizaki, Kyōka and Dazai had turned one room into an office while the others functioned as guestrooms as of yet. That could always be changed later on, Dazai had reassured him. Secretly, Dazai was already planning on getting rid of the office, more Kunikida’s idea than his. One room had been kept a secret from Atsushi, the room right next to their bedroom, it was going to be the nursery for their baby.

When the tour had been over and done with, together with a small house warming party. Dazai had immediately begun to unpack the boxes, Atsushi watching him and helping him as best as he could. Well, it was more like Atsushi was allowed to tell Dazai where to put things while Dazai did all the work. It pleased Atsushi that his Alpha listened to him like that and it had taken them a few days to be done with it.

It hadn’t stopped Atsushi from nesting in their bedroom. The huge bed that Dazai had gotten for them was put to good use. Pillows and blankets were piled onto it while Atsushi was currently lounging in it.

“Atsushi-kun?” Dazai called, it was around lunch time. “You up?”

“Hm… Maybe,” came the mumble, Atsushi didn’t even think about moving from his nest. “I’m sleeping.”

“Are you now?” cooed the man, looking in amusement at the pretending to sleep Atsushi. “Oh dear… what shall I do with the Chazuke that I made…?”

“Chazuke?” Atsushi was immediately sitting up, well as good as he could with his pregnant belly and looked with wide and eager eyes at Dazai. “I want! … Wait-! You cooked?! It isn’t poisoned, is it?”

Dazai pouted at that, “You wound me so, Atsushi-kun! How can you think so lowly of me?”

“You nearly burned the dorms down trying to put the electric kettle on,” Atsushi gave him an unimpressed look. “An. Electric. Kettle! Those can only turn on and heat up the water! How did you manage that?”

“Talent.”

“… What do I see in you again?”

“That hurts, Atsushi-kun, that’s a really low blow!”

Atsushi’s ninth month of pregnancy

Atsushi was sitting in the nursery and rocking lightly in the rocking chair that Dazai had gotten for him. The walls were painted in a light blue while there was a crib in white sitting in at wall with a mobile hanging above made out of stars. It also played a soothing lullaby. The crib had blankets and pillows in it, all scented by Dazai and Atsushi. There was a changing table put up on the other side of the room. It was already stocked with diapers and baby wipes. A soft mat that had teddy bears printed on it was laying on top of it. Next to it was a closet, all filled up with clothes for the newborn.

There was also a shelf and a toybox put up. The shelf was filled with stuffed plushies and a baby monitor. There was a soft carpet put down and a huge stuffed chameleon sitting in one corner. It was a gift from Kyōka and it had Atsushi shedding a few tears when she had presented it to him. He loved it already and it looked big enough to sit on. There was also a few others things but those wouldn’t come into play until their baby was a bit older.

“There you are,” came Dazai’s soft voice, making Atsushi hum and look at him with a smile. “I have been wondering where you went.”

“To think we’re going to be parents soon,” Atsushi was rubbing at his belly, even bigger than a few weeks ago. “I feel so bloated…”

“You look beautiful,” Dazai had come over to him, kneeling in front of him and touching his belly gently. “I could ravish you right here and now~!”

“Shush you!” Atsushi flushed a little at that. “This is how we got into this.”

“I didn’t hear you complaining~!” Dazai grinned up at him, eyes glinting. “In fact, you were very eager for more.”

Atsushi whined at that, swatting lightly at Dazai, “I blame your stupid cock for that.”

Dazai gasped, “Atsushi-kun! In front of our child, such language!”

Atsushi snorted at how fake Dazai was being. The wide-eyed look, the way his Alpha tried to fight a smile and the mischievous glint to his eyes, no one would be able to take him serious then. Least of all Atsushi, he knew his mate very well by now.

“For shame!” Dazai shook his head, tutting lightly at the Omega. “How will we ever fix such an attitude that you’re teaching our child?”

“You’re stupid,” Atsushi snorted, smiling when Dazai had a fake hurt look on his face. “Why do I love you again?”

“My personality~!” Dazai cooed at him, batting his eyelashes up at him. “My charming and delightful flirting!”

“You’re horrible flirting attempts you mean,” Atsushi corrected, remembering very well how much of a dork Dazai can be. “Your lazy work ethics?”

“So mean~!”

Atsushi just laughed in answer, his whole body shaking and the rocking chair with it. Dazai smiled at his laughing Omega, enjoying the moment for what it was. He basked in the moment, `Just a few more weeks…´

Two weeks later, hospital

“DAZAI OSAMU!” came Atsushi’s loud voice, making said male jump.

“Yes~? Light of my Life?” the Alpha cooed, ignoring the snickering of the nurse with them.

“YOU ATE MY PUDDING! THAT WAS MINE!”

“Ah, but darling dear,” he tried, still holding said pudding in his hands. “You are not allowed to eat yet… you are in the middle of contractions and getting ready to give birth, you heard the nurse.”

“… I don’t like how he pulled me into this,” said nurse muttered, eyeing the enrage Omega warily.

“I AM HUNGRY, I DON’T CARE!”

Nurse and Alpha exchanged a look while Atsushi glared at them. It looked kind of funny with his hair a mess, bags underneath his bloodshot eyes and the snarl on his lips. Atsushi looked like a mess, a very lovely mess if you asked Dazai. They had been in the hospital since yesterday morning, the contractions had started then.

Dazai had gotten wide eyed when Atsushi complained his stomach cramping. He had looked cute while doing so but Dazai had seen the pained furrowed in his Omega’s eyebrow. A call later to Yosano and the two were on their way to the hospital. The woman figured it might just be Braxton Hicks, still she had told them to go the hospital anyways. One never knew, no? Since then, they adhn’t left it and Atsushi was admitted, he was in the early stages of his labor.

That didn’t mean the Omega was happy because he couldn’t eat right now. His labor had started slowly but in the last three hours it had greatly advanced and he was pissed. He was hungry and could eat an elephant, damn it.

“You can eat soon,” Dazai tried to sooth him. “Just… hold out a bit longer?”

“I’LL GIVE YOU ‘HOLD OUT A BIT LONGER’!” Dazai had to duck a flying remote. “FACE ME LIKE THE ALPHA YOU ARE-!”

“Ah, no thank you,” Dazai smiled, trying not to grimace when a bedpan came flying next.

“Good luck with that,” the nurse told him, having hidden behind Dazai. “That’s one way to deal with labor pains.”

“Ah, thank you, I do think I will need it…”

Dazai eyed Atsushi warily when the Omega growled at him, hands clenching at the bed railings. Knowing that he might die, Dazai approached his mate anyways and disposed of the pudding in the trash. He didn’t like seeing Atsushi in pain like this and his Alpha was getting antsy because of that. It wasn’t something he could just take away, now, could he?

Atsushi hissed, trying to bare his teeth at him but Dazai did notice him relaxing slightly when he came close.

“Osamu,” came the whine and Dazai answered with a cooing sound. “I want it over now!”

“I know, precious one, I know.”

A few hours later

Atsushi was in the delivery room, his body finally ready to push and get his baby out. Dazai was with him, holding his hand and wincing when Atsushi squeezed his hands too tightly. `Ah, not even my ability can suppress the tiger right now,´ Dazai could feel his hand breaking while Atsushi had torn the railing off on one side. Thankfully, the nurse and doctor with them hadn’t batted an eyelash at it. Apparently, it was normal that Omegas did that, especially ones that had abilities.

Dazai was letting out a soothing rumbling, not even daring it to say anything. He knew that he would just put his foot in his mouth if he tried to calm Atsushi down. No thank you, he had seen how some Omegas had torn into their Alphas while in labor. They had tried to pacify their better halves and it had ended with more than a few broken bones. He rather liked living currently, alright?

“Fuck-!” Atsushi cursed, panting harshly, his body shuddering.

“You’re doing great, Nakajima-san,” his gynecologist spoke from between his spread legs. “Your baby’s crowning already!”

“It feels like they’re tearing be apart!” Atsushi huffed out, chest heaving and clutching tight at Dazai’s hand. “Fuck me in the ass-!”

Dazai couldn’t feel his hand anymore, “Atsushi-kun…”

There was a pained cry from Atsushi’s lips, making Dazai flinch and turn to growl at the doctor. His Alpha being a bit fed up right now. The doctor levelled him with a look while the nurse helping rolled her eyes. Always the same with soon to be parents, honestly. It was getting kind of amusing.

“Don’t worry, Dazai-san,” the nurse spoke up, peering at him. “It shouldn’t take too long anymore.”

Dazai bared his teeth while Atsushi whined, a contraction wracking through his body. He had lost all feeling in his hand by now and couldn’t care less. Later, he’ll whine about it but for now, Atsushi was more important.

“Never again!” came the pain filled hiss.

“Anything you say,” Dazai responded, still shooting dark looks at the nurse and doctor.

Into the early morning

After a few hours of giving birth, Dazai and Atsushi’s baby was finally there. The little one had certainly been taking his time after he started crowning, there had been a lot of whispering going on between the nurse and doctor. Dazai had nearly gone after them, especially when Atsushi had begun to smell more of distress and pain. His Alpha side had been more on the forefront than usual.

It had been surprising that no one had come to escort him out, then again, did they want a raging Alpha around while the Omega gave birth? Most likely not! It was easier to deal with both that way, the Omegas normally had their Alphas under control while they gave birth, just a bit of whining and using their scent and the Alpha’s focus was on them.

“Atsushi-kun,” Dazai’s hand had been treated by now, wrapped in bandages and a cast put on it, “how do you feel?”

Atsushi was laying in the bed, still a bit sweaty but their baby was on his chest and nursing already. His Atsushi looked content right now and was purring, all relaxed and happy. Dazai had no idea how to feel at the sight right now. While yes, Atsushi was a mess but he looked so damn beautiful to him right now and he had no words to describe it.

“Tired,” came the mumble, sunset eyes focused on the precious being on his chest, one arm holding them close. “So tired… but so worth it.”

Dazai hummed, taking a chair and sitting down next to him. His eyes fixed on the sight of his baby and slowly reaching out to stroke over the head. He could hear low purring sound starting up and his own rumbling began in answer to it. There was a content scent clinging not only to him but Atsushi too.

“You’ll have to scent him,” Atsushi whispered, eyes still not leaving their son.

“Him?” Dazai quickly looked at him. “A son?”

“Hm… we did want it to be a surprise until now, didn’t we?” Atsushi grinned, it was a tired one.

There was no answer from Dazai, the man taking in his son who had fallen asleep while nursing. It was kind of cute. Eyes closed, face still a bit red and some fluids clinging to the small body. Their son was only wrapped in a scentless towel so far and a washing basinet would be brought to them soon. The moment their son had been born, umbilical cord cut and roughly wiped free from fluids, the doctor had hurried in the checkup, quickly putting their son onto Atsushi’s heaving chest. The newborn was to smell his parents first and no one else.

Dazai had watched them with hawk eyes while Atsushi was busy with the afterbirth, the nurse helping him. It was a quick affair, or so it felt to Dazai. His whole attention on his tiny son while the doctor and nurse left. They would be alone for a bit to bond with their baby while the nurse would get a basinet ready, Atsushi and Dazai cleaning their baby and then scenting him thoroughly.

Apparently, it made bonding with the newborn easier. Dazai didn’t mind that there was still some blood and fluids clinging to his son, the scent of the newborn not breaking through just yet. It was more important that their son took in their scents.

“Is the family ready for the washing and some paperwork?” the nurse had lightly knocked at the door, poking her head in.

“Not really,” Dazai mumbled, glancing at her and wanting to hide his family away.

“That’s normal, we’ll be quick, I promise!”

Atsushi could feel his hackles rise while Dazai growled lowly, their son startling awake and letting out some small cries. The nurse just smiled at them, her scent hidden by blockers, as was normally done when handling newborns. She had a cart with a basinet with her and a clipboard.

“Alright, here is how we do it, you two clean your baby while I read the paperwork to you and fill it out, you can read it over after, sounds fair?”

“If we must,” Dazai grumbled, hand twitching.

The bathing in itself was done quick, if you could believe it. Their son had wailed while they had done so, something in Dazai had shriveled up and died at the cries. Atsushi, funnily enough, was the one to pull through and do as the nurse instructed, telling him to wash the soft and wispy brown hair. Making sure to be very careful with their head and necks, how to easily get it down while Dazai watched with wide eyes.

The nurse had asked them questions, filling out the forms and putting a name finally down for their baby. Dazai had teared up when Atsushi had spoken the name, he hadn’t thought that his Omega would ever agree to that name but now? He was very happy and had kissed him, Atsushi grumbling while handling their son.

The moment the nurse plus paperwork and basinet was gone, Atsushi and Dazai relaxed. Their son sleeping again but this time dressed in a onesie with a white cap atop his head. Dazai was the one to hold him and watching his sleeping form while Atsushi finally rested, exhaustion winning over him.

“Welcome to the family, Oda-chan.”