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The Nesting Detective

Summary:

During a heist, Kaito dropped his cape. However, Shinichi took it before Kaito had a chance to. So Kaito breaks into the Kudou mansion to get it back, but he is in for a surprise when he finds his cape and his detective.

Notes:

(See the end of the work for notes.)

Chapter Text

DCMK || KaiShin || DCMK || The Nesting Detective || DCMK || KaiShin || DCMK

Title: The Nesting Detective – The Detective Stealing From the Thief

Fandom: Detective Conan / Magic Kaito

Disclaimer: All rights reserved to Gosho Aoyama for he created the awesomeness that is Kaitou KID. Ah, and Detective Conan, too. This fanfiction on the other hand is entirely mine. No money is made with this, though reviews are more than welcomed.

Tags: m/m, alpha/beta/omega dynamics, fluff, nesting

Main Pairing: Kaito/Shinichi

DC/MK Characters: Kudou Shinichi, Kuroba Kaito | Kaitou KID

Summary: During a heist, Kaito dropped his cape. However, Shinichi took it before Kaito had a chance to. So Kaito breaks into the Kudou mansion to get it back, but he is in for a surprise when he finds his cape and his detective.

The Nesting Detective

The Detective Stealing From the Thief

"Ah, as much fun as this was, I guess it's time for me to go, tantei-kun."

Kaito laughed like a maniac as he ran over the edge of the building and disappeared in a puff of pink smoke, leaving behind only his cape. Well, he didn't actually disappear. He uncapped his cape to change behind it and then mingled with the crowd of police officers who had just stormed the roof-top to interrupt his date with tantei-kun. It wasn't technically a date. But it should be.

Ever since Edogawa Conan had disappeared and Kudou Shinichi had returned, their little roof-top meetings at the end of a heist had started to feel so much more intimate and like dates to Kaito. It didn't help too much that Shinichi, back to his grown-up body, actually was presented and smelt that way too. Smelt like omega. Conan had been a kid, unpresented yet. But this? This was a grown-up, gorgeous, tempting omega, with that brilliant mind that could keep up with Kaito.

Conan had been a fun challenge, Kaito had loved to play cat and mouse with the kid. He had gotten very excited (and confused) when he learned that the boy was actually his age, was actually Kudou Shinichi. But to see it, for himself? To see the real Kudou Shinichi, but recognize those cerulean eyes and those cocky smirks and all of his little mannerism? It was baffling.

His heists had never been more exciting than since Shinichi returned and joined them. Which was oh-so very ironic, because wasn't usually the alpha supposed to chase after the omega? Not the other way around? Well, not that tantei-kun knew he was an alpha. Kaito used scent-suppressors when he went onto heists. Scents were too recognizable and Nakamori-keibu definitely knew Kaito's scent enough to realize he was KID. So KID was a neutral-smelling beta.

Kaito turned around, intend to collect his cape before leaving, pretending to be an officer gathering evidence. He had given up decidedly too many top-hats and capes during heists, it was getting annoying to replace them all the time. Alas, by the time Kaito reached the spot, someone was already kneeling next to it and had the cape gathered up in his arms. If it were any random cop, Kaito would just offer to hand it over to evidence, but it wasn't. It was Shinichi. And talking to Shinichi while out of costume like this was too risky. Oh well, Kaito could always steal the cape back later on from the evidence. He quickly turned around and walked away into the crowd.

/break\

Kaito kept lingering around the scene, wanting to take his cape back once Shinichi would hand it over. The thing was, he didn't hand it over. Instead, the teen detective went to the professor's yellow little car and put it in the trunk before finishing up with Nakamori-keibu. Had... Had Kaito just witnessed his tantei-kun stealing evidence? Stealing from KID, at that! Which one was more outrageous? Kaito couldn't decide, but both of them were somewhat hilarious.

"Ts, ts, ts, tantei-kun, I am both proud and disappointed in you," whispered Kaito to himself before tapping his ear-piece. "Jii-chan, I'll be late. I have to make another stop. Don't worry about it."

Before Jii could protest, Kaito disconnected the call and pocketed the device. Tonight, he was going to stalk tantei-kun home and confront him about the bad, bad stealing that he was doing. Also, so Kaito could steal his cape back. Both because he needed it back, but also because he did not trust tantei-kun not to find some evidence on it to discover Kaito's identity. Like his hair. So it was completely reasonable to stick around and wait for tantei-kun.

When Shinichi finally left the heist site, Kaito followed back to the professor's, where the professor and Shinichi parted ways. Not wanting to confront the omega right away, Kaito went ahead to break into the library and get comfortable while he could hear the shower running. Oh, the temptation to sneak in and see Shinichi in all of his glory. Licking his lips, Kaito gripped the book tighter to keep himself from going in there. Why was he waiting, anyway? He could just grab the cape and leave. But then, that wasn't his style. It also wasn't his style to pass up an opportunity to have a one on one with his tantei-kun, especially now that he was back to being Shinichi.

The water turned off. Kaito tensed, straining his hearing. There was some very off-key humming as the bathroom door opened. Should Kaito go to him now...? But Shinichi thought he was alone, he might be naked right now, only getting changed once he was in his bedroom. Again, the urge to go and see all of that for himself. Closing his eyes, Kaito took a deep breath. Which wasn't overly helpful, because this was the Kudou Mansion and everything here smelt like the omega. Sweet, like roses and pie. Kaito licked his lips and leaned back, relishing in being surrounded by his tantei-kun's scent. He had to think of the first time he had smelt it. The very first time Kudou Shinichi had joined a heist after his return. He had actually run into a wall. Into a literal wall, face first. He hadn't known Shinichi was an omega, Shinichi used to be on suppressants before his disappearance but apparently he wanted to fully embrace being back in his body, including his omega-nature.

Which figured. If he had been able to fight his way through the police's stubbornness as a seven years old, he surely could take them on as a grown-up omega. Still, it had been a surprise for Kaito. And an even bigger surprise had been the scent itself because it was so distracting.

It got quiet, for a while. Mh. Shinichi should definitely be changed by now. Time to confront the little thief. Heh. The joy thinking that gave him. He had corrupted his tantei-kun into stealing!

With a skip to his steps did he walk through the hall and toward tantei-kun's bedroom. And let's not talk about how he knew where exactly Shinichi's bedroom was. He put on a broad, genuine smile as he opened the door with flourish, producing a white rose with his free hand to present to his detective before the teasing would commence. He froze in the doorway, staring in surprise.

Shinichi was on the bed, laying on it, curled together and looking quite peaceful. The thing was – no, the things, because multiple ones – Shinichi was wearing a KID pajama, with tiny pints of KID's signature smiley. And Shinichi was also laying on top of Kaito's cape. The cape was spread out over the bed, covering the whole bed, one wall of pillows to the other. Which was the third thing; this wasn't just Shinichi's bed. This was his nest. His tantei-kun was actively nesting.

His tantei-kun was actively nesting and using Kaito's cape in his nest. Kaito had no idea what to do with that. Why would Shinichi...? What...? So Shinichi hadn't taken it for evidence...?

He must have made a startled noise at one point, perhaps even more than one because every detail he noticed made him feel like he should voice it aloud. To make sure what he was seeing was actually real. Shinichi, in KID pajamas, nesting, using Kaito's cape in the nest.

"Mh...?" Shinichi grunted as his eyelids fluttered open and he slowly sat up. "...KID..."

Blue eyes were staring directly at Kaito, who must look very stupid just standing there, lamely holding a rose. After a moment, Kaito cleared his throat and approached to hand over the rose.

"You know, I came here to tease you about stealing from a thief, but now that I see why you stole my cape, I have... many, many questions, tantei-kun," offered Kaito softly.

Shinichi's eyes widened and his cheeks flushed as he looked down at the cape and then at his legs, staring at the choice of pajamas. He tried covering the pajamas up, but since he chose the cape to do so, it didn't exactly help with the visual. Kaito bit his lips hard, saving this moment to memory.

"You have no right to be here," Shinichi sounded uncharacteristically upset.

Not annoyed and irritated, not ready to kick a soccer ball at Kaito. He sounded genuinely upset. Kaito slowly stepped back some, frowning. How was he supposed to react...? He knew his way around upset omegas. His best friend Aoko was an omega, he'd grown up with her. But this was his tantei-kun and he'd never seen the detective like this. He didn't know what to do right now.

Kaito tried for a quip. "You know me. I'm a thief. I break and enter."

"You have no right to be here. This is my nest," Shinichi actually growled this time. "Out, alpha."

Kaito stumbled backward out into the hall. Actually stumbled and landed in a pile on the floor. His eyes stayed on Shinichi, who slowly got out of his nest and walked over toward the thief. Instinctively did Kaito back off until his back hit the wall. Glaring, Shinichi crossed his arms. Which looked far less intimidating in the cute Kaitou KID pajamas.

"A... Alpha," was the first thing out of Kaito's mouth, startled.

"Really, KID-san?" Shinichi arched his eyebrow. "Your fake little dampeners might work on distance, but just try to recall how often you have been carrying me around in your arms, pressed against your chest, during the past two years? Your dampeners were not designed to cover your scent this up-close, over a longer period of time. Yes, I know you're an alpha."

Right. That had not actually crossed Kaito's mind. He never let anyone get physically close like that during a heist, not for longer than a quick pass or entanglement with the police. Not pressed against his body for multiple minutes, just carrying him. Kaito flushed and averted his eyes.

"So... you have stolen my cape because it smells like... me?" Kaito asked softly.

"Don't let it get to your head," warned Shinichi with narrowed eyes.

"How could I possibly not let that get to my head?!" Kaito got up and threw his hands in the air. "I'm just an alpha, you know? How can I not let it get to my head that the omega I love likes my scent enough to put it in his nest! That's just impossible, tantei-kun!"

Both their eyes widened as Kaito's voice echoed in the empty house. As his words sunk in, for the both of them. Kaito clasped a hand over his mouth, as though he could take the words back, while Shinichi flushed furiously, his mouth hanging open at that.

"Y... You like me?" Shinichi asked, staring at him intensely.

"Love. You should listen more closely, tantei-kun," corrected Kaito, because now it was out anyway so he might as well own it. "Yes. I... I do. And if I... don't really misinterpret things here, I think that you like me too. Or do you just use any random alpha's clothes for your nest?"

Shinichi narrowed his eyes, though he was still blushing. "...You are... You make me feel safe. You have been... a reliable, constant source of safety during those last two years as Conan."

"Okay," whispered Kaito with a nod, slowly stepping closer. "Just safety...?"

Catching his lower lip between his teeth, Shinichi shook his head. "Not just safety. Sanity. Fun. Joy. Hope. You... have no idea how much your heists meant to me while I was Conan."

"Okay," Kaito smiled a little bit as he stepped into Shinichi's personal space. "Can I... kiss you?"

The way Shinichi licked his own lips, tracing them in a hypnotizing manner. He nodded and Kaito pulled him into a slow, deep kiss, pressing the omega against himself, holding him close.

"What about the pajamas, tantei-kun?" Kaito's voice was a soft teasing.

"They were a joke-gift from Haibara to tease me," Shinichi pouted and Kaito kissed the pout away.

~*~ The End ~*~