Title: Hellspawn
Chapter: 8/?
Characters: Rin, Yukio, Mephisto,
Genre: Fluff, some-angst, (insert genre here)
Summary: "It took Rin over sixty seconds to collect his jaw from the floor and less than fifteen for Mephisto to laugh."
Disclaimer: I own nothing, it's purely fan made for fun... or tears.
Warnings: No beta'd, etc. cursing, anime!ver, brocon, start RinYuki.

A/N: Time jump / aka a week later or so! Also a shitty chappie is shitty. We have some Rin/Yukio moment but there is also Mephisto who enjoys it more than boys do! LOL! More goodness to come (hopefully). ps1. tea is a lie! ps2. Can we talk about how Yukio's in the dark and has no idea what's going on between Rin/Mephi xD Ja nee! ENJOY

To-day was supposed to be such a great day, oh that it was and Okumura Rin was more than hyped when it finally came to be. Yet after preparations were done with Mephisto showed up and needed to break that beautiful illusion of peacefulness with his overwhelming persona. Yes, that was that. It was all Mephisto's fault, nobody else's.

Unfortunately (for Rin) the fact stands that he actually agreed with Mephisto upon to-day's events.

Not that he was prepared for pure moe Yukatas that were provided for him and Yukio to wear but he should be more than wary of Mephisto's fashion tastes. Unfortunately seeing as he and Yukio were both staring warily at their clothes he could only gulp fearfully and glance from a corner of his eyes at his twin that stood not that far away from him with his own Yukata clutched in hands, keeping it at bay as if it could accidentally round onto him and kill him.

The style-less kimonos were horrible.

"There's no way I'm wearing it" he concluded, his eyebrow twitching in annoyance. "It's completely tasteless, and even worse it's PINK."

Yukio took a moment to sigh then turned towards him with a blank face. His Yukata wasn't as bad as his was, being brown and beige. Still, strange moe anime characters that were embroidered into it somehow looked way too misplaced. "I told you about it before, nii-san" he finally spoke, his calm voice strong as ever. "We could've waited for our next birthday. It's not that much of a loss for me to miss one birthday."

Even though Yukio's reasoning was right, he couldn't help but to disagree. Now fully rounding at his twin, he smiled devilishly because he had his own reasons too. "Maybe you're right, don't get me wrong here Yukio but I couldn't miss such occasion to get my baking skills to use." Of course Yukio opened his mouth to respond but he cut him off first. "Yeah I know I've baked a cake before – for Izumo – but today is special. Listen, I've spend our last birthday alone in here and I'll die first before I'll not celebrate your showing up, healthy and snarky as ever."

At that Yukio pushed his glassed upwards. "I'm not snarky. Snarky isn't even a word."

He laughed at his twin's response. "Yeah, f'course" he countered, once again looking at his own Yukata and this time pouting. "Some days I know he loves to see me squirming with discomfort" he added, sighing and mentally preparing himself to wear it. Just as he moved towards his wardrobe he felt a tug and stopped, looking quizzically over his shoulder.

Yukio stood steadily and shook his head at him, pulling pink material over.

"Huh?" he blinked, puzzled over his twins motions. "What are ya doing, four-eyes?" he asked but as a answer he got another tug on his kimono. "What—Yukio?"

Yukio sighed sheepishly, as if slightly embarrassed about something. "If you don't want to wear it that much, then we're doing to swap" he said slowly but when his eyes dragged over pink material he actually shivered in discomfort. "It's the least thing I can do for you... After everything that happened."

He blinked and then huge grin spread over his features. "You're sure about this?"

Yukio nodded but winced when Rin practically showed his pink Yukata into his outstretched hands and tore the other away.

"Thanks bro" said Rin, smiling happily. His tail kept on sweeping the floor nonchalantly. However when he looked over Yukio, evil twinkle shone in his eye. "I cannot wait the look on his stupid face when he realises that you're the one wearing it."

At that Yukio sweatdropped a little. He visibly twitched but was smiling nonetheless. "A-are you saying that you're using me to get back at Pheles-san, nii-san?"

This time Rin's dark chuckle filled the small room they shared. "Always, dear brother of mine, always."

"D-do we really need to watch this?" mumbled Rin, squirming on his knees.

"It was your idea to even start with" mumbled back Yukio, who unlike himself sat calmly, his back straight, knees unwavering.

"It's fucking terrible..." he said, squirmed some more in place and found out that blood circulation from his lower body was practically cut off, upon that he almost cried.

"Stop, nii-san, ceremony is not over yet" finally snapped under breath Yukio, opening one eye and glaring at his older sibling.

Rin on the other hand didn't give a shit about tea ceremony which was presently done by Mephisto himself in concentration. "He never spoke a word about fricken' tea ceremony, that bastard."

Yukio upon hearing that closed his eye and sighed tiredly. "Really now, I don't think it was Pheles-san that would actually bring the idea of my omissed birthday up."

"Oh really? Well, surprise, spotty four-eyes! It was his idea, if not for him we wouldn't be sitting here and waiting for our lower bodies to fall off."

Yukio snapped open his eyes and glared at his brother, who squirmed even more on his knees. He clearly wasn't comfortable and if not for seriousness of tea ceremony it'd be funny. But it wasn't, not now. However the more Yukio stared at his brother the more he could say that he was on the edge, literally. Give or take few more minutes and Rin would burst like a balloon.

Just as Rin couldn't hold his discomfort in any more, Mephisto finished the ceremony and with a bright smile on his face turned towards twins. Looking over them, he seemed very pleased of the reason only he knew about. In a one smooth move he poured tea into cups and leaned in some.

"It's so good to see you boys all well!" he said cheerfully, noticing twitching tail of Rin's. "I also feel honoured to be a part of this unorthodox 'welcome back' party!"

Yukio nodded pleasantly. "Thank you, Pheles-san. However like I said before, you didn't have to organize anything really. I'm greatly pleased that you did but next time I'd appreciate it if you'd not prepare anything of sorts. I'm not much of a party person."

Mephisto shrugged the comment off with a wave of his hand. "Of course, Okumura-sensei is humble as always" he said, bringing forth two cups of tea. When neither of twins moved though, he let them rest before kneeling boys. "I'm happy to see everything went back to normal" he added, looking over both boys. Well, they seemed fine, as if nothing happened in the first place.

In that moment Rin snapped, his legs were numb enough already and he clearly didn't need any more of Mephisto's speeches. "Can we start already? I've lost feeling in my legs ages ago, clown!"

With a smirk, Mephisto only chuckled. "I'm sorry for trying to have a heart-warming tea ceremony for my guests."

The comment seemed to touch a nerve as Rin – stupidly – tried to stand up, only to falter a second later. "We're not your guests, stupid fluff-clown. It's our place, isn't iiiiitt-WHAAAAA!"

"Nii-saaaaaan!"

In a lightly-coloured tea room a loud thump sounded as Rin bodily smacked down into floor. However his poor body coordination ended with him falling straight onto his unsuspecting twin that was sprawled on the floor underneath him.

In a second, time stood still. There was nothing that could break the silence that followed.

Nothing but, "Nii-san..."

Gulping, Rin opened his eyes which somehow closed themselves in his short flight. He however wasn't sure if it was good idea to do so, mainly because his eyes ended looking at part of Yukio's neck. At first their situation wasn't that bad, but when he subconsciously travelled with his irises down that neck and trailer lower over now unobstructed parts of fine looking chest he knew everything went downwards.

Literally.

"You're... heavy..."

Winded words spilling of Yukio's lips unfortunately weren't enough to break him from his dazzled mind. The milky white chest rose up and down steadily with each breath, a very specific smell seemed to be oozing from his twins body as well, and Rin in the end didn't know what made him do what he did. Because in his fogged state of mind, he felt himself slowly raise above his twin but only as much as to see his face.

His way too-cute face with glasses askew and flushed cheeks.

"Can... you? Move..?"

Yukio was speaking, his lips moving but he haven't heard a word he said. It was as if entire world went on mute for him. The strangest fact was that he actually saw a tiny red string attached to his pinky finger of his left palm which right now – held one of Yukio's wrists pinned to the floor. Glancing closer over it he trailed the red string where it met with Yukio's own palm, where it rested around his small finger. The thread that was between them seemed so fragile and thin as if it was meant to break any time now. Before he could think more about it, his senses were once again bombarded with the strange scent his brother was emanating and he almost lost himself in it.

It was addicting, intoxicating, perfect. Adding to it a warm body that lied underneath him, he found his mouth watering at simple – completely wicked – thought of maybe licking the visible skin he kept staring at.

Just as that thought ended so did the strange charm Yukio put him under and he found out that his brother's face was way too close for his comfort. He never even had a chance to stop Mephisto from snapping a photo with a bold chuckle.

"Okumura-kun I think you might be crushing (on) your brother."

Only when he remembered Mephisto, Rin's self-awareness kicked in and he practically jumped off his twin, that still lied on the floor – also seemingly dazed. Not waiting a second he turned at Mephisto.

"What are you thinking you're doing?" he snapped, his face reddening in a extremely-fast pace. "Delete it!"

But Mephisto had other ideas though, as he rounded back onto cherry-faced Okumura. "No, it's a memory now. I think I will keep it safe and sound."

Shivering with anger, Rin knew all too well of that safe-keeping crap. "Bullshit."

"Now, now" Mephisto chuckled and then narrowed his slanted eyes. "You can get a copy if you want. And I believe you'd be more than happy to have it..."

Rin growled, his fists going white when Yukio cut into the fight. "Nii-san please, it's nothing – just a stupid photo. So could you kindly calm down and sit?" Upon catching Rin's eyes he sighed, sitting himself and adjusting his Yukata – which somehow slipped from his shoulder. "It's all fine. I don't mind. It wouldn't be the first photo like that..."

At that Rin stared at his brother, his mind mulling over the commentary. "What- what do you mean, four-eyes?"

It was again Yukio's time to cough into his hand and hide under his glasses. "I think Pheles-san might have a few photographs of me in a- very compromising situations. So as I said it's nothing I haven't met with before."

It took Rin over sixty seconds to collect his jaw from the floor and less than fifteen for Mephisto to laugh.

"Why- you never said anything about this pervert?!" roared Rin towards his brother. He was livid. "How long-"

"Nii-san" barked back Yukio, pushing his glasses up. "Can we actually get to the point of this small tête-a-tête? I believe we wasted a lot of Pheles-san's free time already."

There wasn't arguing about that point and so Rin agreed, still red-faced and fuming. "All right. I'm going to bring the cake..."

As the words slipped his lips, he moved towards doors but was harshly interrupted by Mephisto who was in a very good mood.

"Ne, Rin-kun, I'll get it" he said and with his magical umbrella puffed the cake into the room. Both twins upon that blinked, amazed. "Okay then boys, now that all pleasantries were exchanged I think we can actually get to the point" he added, his face still smirking but eyes following closely after Rin.

"Finally!" groaned Rin, going back on his place and slumping comfortably. "I knew there must've been a point in all of this!"

At that Mephisto chuckled again. "Of course there is. So... Okumura-sensei, how are you feeling?" he asked, staring sombrely at youngest Okumura.

Yukio seemed to be crestfallen at such question but answered nonetheless. "I'm fine."

"Are you, really?" prodded Mephisto, his eyes wandering over twin. "I believe you misunderstood my question here. I am not asking about your health but about the demon that's hiding within..."

That piqued Rin's interest as well, as he listened closely what his twin had to say. He reached for a slice of the cake and bit into it, melting at the taste.

"What do you want me to say, Pheles-san?" answered after awhile Yukio, his shoulders tense. "All my life I was taught to destroy demons and now... now I am a demon myself."

Mephisto nodded. "I understand that you're in a very unorthodox situation. However, to provide safety for all of us, demons and humans alike, I need you to accept the fact that you're one of us now." Yukio's face leaned down, into hiding. "The main reason why I'm telling you that is because of the latest events that almost put an end to the entire Assiah. I believe you'll understand, what I choose to do."

Upon those words Yukio's face popped up and Rin stopped munching his cake with a spoon in his mouth.

"Both of you still need to learn a lot about being half-demons and what it means to be one..." before Yukio could cut in with his five cents, he silenced him with a friendly glare. "Please, don't tell me that you've read it all about in books, learned in school, because believe me – you didn't. It's completely different when you're demon than what they all teach you."

"Yea, but isn't it yours Academy that teaches us the wrong stuff then?" piped in Rin, once again munching his cake.

"Higher politics are pulling the strings. Now, getting back on track. As Okumura-sensei is officially dead to the world I will be able to grant him some off time if you want to call it that, to learn to accept and use his demonic side. No, this is a must, Okumura-sensei, we cannot let a situation like the one over Blue Lake happen again" he paused and then smirked devilishly. "That's why I came to this" he said and stretched his arms around in a welcoming motion. "This is your mission, Okumura-sensei. I want you to accept the fact that you're a demon, I want you to learn to use that side of yours, I want you to listen to new Okumura-sensei" he concluded, pointing towards Rin – who froze with a spoon mid-air and blinked at them. "For next couple months, Rin-kun is going to teach you how to tap into your demonic side without too-strong after-effects which also will be a good trial for him."

"Pheles-san..." broke in Yukio, who was sweatdropping heavily by now. "I don't think it's a good idea..."

"Nonsense!" barked Mephisto, laughing. "From today on, I'll put this building into different dimension, where you'll be freely able to learn – without worrying about hurting anyone but yourselves. I'll even make sub-dimension on the first floor, so it'd imitate open world where you'll be able to do whatever you'll want to. Maybe even burn with blue fire..."

Rin, who finished his third piece of cake, sighed and then lazily reached for a tea – which was few notches colder than it should and grimaced when bitter taste met his senses. "So basically you want to close us both together in here for god-knows-how-long for training." Mephisto nodded and then smirked when he noticed that Yukio tasted his own cup of tea. "How are we gonna get food then?"

At that Mephisto barked with laughter. From all the questions he could ask, he asked this one. "Ukobach will keep a tab on the fridge as he can go to and thru dimensions easily."

Rin nodded, somehow sleepily. "All right. I can do that, I can help Yukio."

"Nii-san..." he mumbled back, glancing at him. "Do you even have any idea how to teach anyone?"

Upon that Rin laughed and leaned down, lying on the floor. His blue eyes however slid over to the place his twin was sitting, in a pink Yukata. "No."

"I thought so..." sighed Yukio, his fingers caressing bridge of his nose. "Then, to conclude today" he started, glancing at Mephisto – who was very interested in Rin's lying form. "Me and nii-san are going to be held prisoners in this building for... how long?"

"As long as it's possible" answered immediately Mephisto. "However I think we'll have close the gap at two months, as Rin-kun needs to get back into his last school year."

At that Rin actually jumped, remembering something. "Good point, clown. What do I tell everybody when I'll be gone for two months?"

Mephisto shrugged it off. "It's been taken care off already. You're gone to private exorcist training camp."

"Huh?" Rin blinked and then growled. "What is that supposed to mean?"

"It's supposed to mean that you're one of the best future exorcists and you wanted to get even better."

"Yukio? Does something like that even exists?"

Yukio frowned and then shook his head. "Not that I am aware off."

"Well, yes, whatever boys. It's been taken care off and that's it" concluded Mephisto, looking over both twins. His smirk went even wider when he realised that they actually swapped their Yukatas. "Okumura-sensei, I've never really thought you're the type that likes pink."

Yukio's nose went slightly pink but he cleared his throat. "Well... No, I don't like pink. Not really."

"You look positively moe in it though!"

At that Yukio's eyebrow twitched nervously. "Uh, thank you I suppose?"

"Hey, clown! Where did ya get this ugly-ass Yukatas anyway?" piped in Rin, smirking in silent victory.

Mephisto however only chuckled. "It's a good thing that you're wearing the same size now, isn't it?"

Rin's smile faltered faster than light. "What's that supposed to mean?!" he barked, baring his teeth.

"Only tiny fact that you're the same height that your brother is. It's been a long, long time since you seen eye-to-eye with him, no?"

"ARGH!"

"But don't worry, once the lost year catches up to him, you'll need ladder again."