Title: Sorry, Nii-san

Genre: Romance, Angst, Hurt & Comfort

Rated: M

Summary: If I wasn't so reckless, if I didn't left him together with Shiemi then none of this would have happen. He should be here right now, talking, laughing, picking a fight with Suguro-kun, but no he have to be gone, at a place I don't know, without even knowing if his fine, eating properly or more importantly if they did something terrible to him. I'm sorry, Nii-san. I'm sorry Rin… AU takes place during episode 9, when Yukio followed Neuhaus to the roof.

Warning: angsty scene, violence or terrible scene, twincest and lemon and M-preg in the future.

Main Pairings: Yukio x Rin (Yukio as seme, Rin as uke)

One sided Pairings: Mephisto x Rin

Disclaimer: I don't own Ao No Exorcist

Thank you for reviewing by the way!


Chapter 10


Third Person's POV

At Rin's room in the hospital, Yukio is sitting at a chair beside Rin's bed, watching him sleeping. The younger twin sighed tiredly, before rubbing his face and look at the papers his holding in his left hand, while the other hand, which he use to rub his face, went back to hold his older twin's hand. For the pass 3 months Yukio didn't do any missions, not even once, focusing only on finding his brother, the only family he had, and apparently the Vatican took notice of this and didn't take it very well. Earlier their letters arrive and the first thing Yukio thought upon receiving them are questions about why he isn't doing any mission and then them demanding him to do some missions or that he's being called to go to the vatican and explain his behaviour.

He sighed again and rip the tip of the envelope and read the letter which said.

"Okumura Yukio,

For the pass three months we notice that we didn't receive any reports from you or even report about you going to any missions with other teams. It seems that you've been skipping your exorcist duty, even when you finally found your brother. Please think of your actions of what you have done for the passing months and do your duties as an exorcist.

Whether you like it or not Mr. Okumura, people lives are more important than you pathetic brother, sorry for being rude, but saving thousand of lives is better than saving one useless life. We're really sorry for being rude but what we're saying is the truth. The Paladin died because of your brother and now your not doing any mission because of him.

Mr. Okumura we demand you to go back to the field and do your exorcist job. You are needed, your the best exorcist, the youngest and most probably will be the next Paladin after ten years. If you want to remain your position, status and be the next Paladin, then do your mission.

With Condolence

The Vatican"

"Damn those old geezers, they don't understand a thing..." Yukio grumbled, before throwing the letter from the vatican to the floor and slump in his chair still holding Rin's hand.

"Condolence my arse, they aren't condolencing, they're having a party. Damn them." He grumble and began to curse in any language he knew before stopping when he heard someone knocking at the door.

"Yukio, it's me Sato, Mr. Mephisto is with me." He heard the doctor said, he sighed again and grunted a come in, ignoring that Mephisto is in the room. Sato and Mephisto look around the room before stopping when they saw the paper at the floor.

"What's this?" Mephisto asks, picking the paper up and read it together with the doctor, then a minute letter it turn into ashes.

"Don't they understand a thing..." Mephisto growled, while Sato frown before looking at Yukio who is looking at Rin, tiredly.

"You know, maybe you should go back to the dorm Yukio." She said, walking towards the former. Yukio glance at her before shaking his head.

"No, Rin might woke up and I'm not letting that pervert clown watch him." He protested, growling the last four words while glaring at the said clown, who laugh nervously.

"But Yukio ever since Rin went to cardiac arrest, which is two days ago, you never left his side and you never took a bath. I've been thinking that maybe I should reconsider about letting you stay here." she said putting her hands on her hips, Yukio shake his head.

"Even if you do, I'll just barge in through the window or just use the infinity key that I have." He said, Sato and Mephisto sighs, defeteadly.

"Okumura-sensei..." The Principal started Yukio glance at him. "I don't really think Rin-kun would appreciate what you are doing." he said, Yukio sigh before nodding.

"I know that, Nii-san would scold me about my current state." he agreed before looking at the mirror standing at the other side of the room. What Yukio saw made him cringe, his hair was disheveled, dark eye bags under his eyes, his exorcist clothes which were straight from being ironed are full of wrinkles and his tie loosen. Gulping at what he is about to do, Yukio lift his right arm and sniffed before cringing. Sato and Mephisto giggled covering their mouth with their hand making Yukio to glare at them and slowly lowered his arm.

"'Tis not funny..." he grumbled.

"Of course not..." Sato giggled making Yukio to growl at them before looking at Mephisto, who was looking at Rin with lust, making him to growl warningly. Mephisto snap and look at Yukio before sighing and gestured for Sato to go out.

"Yukio and I need to talk privately." he said, Sato hum before nodding and walk away. The moment the door close Yukio immediately lung at the older brother grabbing his collar and growled.

"Why are you looking at Nii-san like that, Pheles-san..." Yukio growled angrily, tightening his grip at the clown's clothes. Mephisto looks at his youngest brother before grabbing his hand and pried it away.

"It's not only that you want to know, right?" He asks, Yukio snarled at him making him sigh. "I'll tell you everything, but you have to tell Rin in return." he added making Yukio's eye to narrowed, the latter then back away from him and began to sit at the chair he previously sat.

"Alright for your first question on why am I looking at Rin like that is because I love him." he started, Yukio look at him with wide eyes before it narrowed and was about to lunged at him again but he was immediately hold back by Mephisto's magic.

"Let me explain first before you go and attack me." he started, Yukio glared at him before relaxing a bit.

"I'm sure you remember that father, Satan, said something about the blood moon correct?" he asks.

"Of course I do... Onii-san..." Yukio growled darkly, Rin and Yukio already knows that Mephisto is their half -brother from the moment they step foot at their dorm. It was accidentally though.


Flash back

They were about to enter their dorm when they heard Mephisto talking to Satan and heard the former called the latter dad. Connecting the dots Yukio came into a conclusion that Mephisto is their half brother, Rin hummed before smiling and open the door and shouted.

"We're back Mephisto-nii-san!" Rin shouted, smiling so brightly, making Yukio to gape at him and the former to melt and turn into a puddle. Rin smirked darkly when he saw Mephisto was liquified and immediately began to step on him repeatedly.

"You baka clown, didn't tell us your our brother. Die and Go to hell asshole!" he shouted before turning away and walk towards the hallway, leaving a still liquified Mephisto, who had a shoe mark on his face and a gaping Yukio. Yukio watch his older twin left before snapping from his trance and push his glasses, which slip down from his nose brigde, higher and glare at Mephisto before smirking and did the same thing before leaving the fron door while whistling.

End of flash back


Mephisto chuckled at the memory before looking at Yukio, who was releasing a dark aura.

"Alright already!" he cleared his throat. "The blood moon is where the male submissive demons matured. It is the time that their body began to change inwardly and have the female reproductive organ."

"What?" Yukio gaped making Mephisto to role his eyes.

"Your smart but not very smart. Like I said male submissive will have what the female have, meaning, (A/N: Excuse me guys some of you might not be comfortable with where this conversation is going.) they'll have the vagina, uterus, the ovaries, and what not. The penis of the male submissive will not be replaced by the vagina instead the vagina will be found in between the penis and the anus. Once the male submissive had finish transforming they are able to be pregnant and give birth to a baby like how a woman would."

"Isn't that a bit risky?" Yukio asks, fidgeting. "Something bad might happen to them." 'I don't like to talk something related to women, geez. I only want Rin, damn it...' he thought.

"It is, very risky, especially for unmated submissive."

"What do you mean?"

"Those submissive demons that didn't have their mate beside them might be claim by other dominant demons they don't want to have. Also both demons need to drink each other blood to mark, cover each other with their scent and claim each other. So if the submissive didn't have a dominant with them, the other dominant will force theirselves to the other and the other had no choice but to drink the blood, either get rape or willingly let the other have his way, and stay with that demon side forever." Mephisto pause and look at Yukio who is gaping.

"What happen if the submissive didn't drink the blood of the other?" he asks.

"They'll go insane, or probably die." He answered before looking at Rin. "And Yukio, Rin is a submissive demon and your a dominant, which made you the significant other of Rin, so you need to be at his side at all time or else demons will come and kidnap him and force theirselves with him. The nearer the day of the blood moon is coming the stronger will Rin's scent become, and the more dominant demons, like me, will go after him and kidnapped him, force theirselves on the day of the blood moon."

"Hold on a minute Mr. Pheles! What do you mean that I'm Rin's significant other?! And What do you mean that there are demons will go after Rin?! And Nii-san is a submissive?!" Yukio shouted, standing up, still holding Rin's hand, tightening his grip.

"Just like I said Yukio, for demons, the significant other needs to be someone close to them. And just like said again, the demons will attack Rin because of his delicious scent and Rin is a submissive because he's doing things that women should do, like cooking, household chores and what else. Your a dominant because your protective and had a instinct of husband when Rin is threaten do you not?" Mephisto asks, sipping some tea that came out of nowhere while Yukio nodded, dumbfounded.

"But isn't that incest? Its forbidden to have a relationship with your family Mephisto." He said, the former shake his head.

"To us, who had a blood of demon, it is not forbidden. Heck it has been a law that twins should mate each other if they are close to one another. There are some cases where the elder twin are the submissive but some also had the younger as a submissive. Well to determine if your a submissive you'll do the 'wife's job' at age 6-8 years old, and a dominant when you felt like protecting someone at the age of 7-9 years old." Mephisto sip at his tea while Yukio began to think.

'Well, we did do those things at the young age, Rin starts cooking at 7 was it? and I started wanting to protect Rin at 8? I don't really remember it well.' Yukio then look at Rin before smiling. 'Well, that solve my problem about loving Rin. But what if he won't accept this fact?' he thought sadly before looking at Mephisto.

"Do you think would accept this fact?" he asks, the former hummed before shaking his head.

"It depends on him Yukio, but maybe you should help him with his trauma first..." he said, Yukio nodded before looking at Rin.

"But what about the vatican?"

"The moment Rin will be out from here, you and your brother will leave this place, I'll look for a place that no one knows the two of you and that your far away from the vatican. I'll do what I can, Yukio." he said. "Well, maybe I'll look for a place that no demon can enter and probably me, Satan knows how much I want to have Rin now..." A growl was release from the protective brother. "Alright! Just ignore the vatican okay?"

"Wouldn't be against the law?" Yukio asks, Mephisto smirks.

"Do you really think they can defeat a demon like me? Think again Yukio, because I can kill those people with just a snap of y finger." he said, proudly.

"But doesn't that mean I'm quitting to be an exorcist?"

"You have no other choice Yukio. It is either you take Rin far away from here or let the vatican take him and be put in prison? You should focus on making sure Rin will be fine, help him in his trauma and what else he'll be suffering from what the old man did. And protect him on the day the blood moon will arrive."

"What should I do when the blood moon happen?" Yukio asks before freezing when he heard a voice he expect to hear so early.

"Mom said that she'll tell you when we find a place to hide. It's not safe if we spoke at a place that people will hear." Yukio and Mephisto look at the bed where they saw Rin awake, smiling at them while lying at the bed.

"Nii-san..." Yukio trailed before lunging at his brother and hug him who hugged him back.

"Your awake..." he said, while Mephisto left the room to look for Sato.

"Yukio..." Rin whispered, before breaking away from the hug and cover his nose. "YUKIO WHEN WAS THE LAST TIME YOU TOOK A BATH?!" Rin asks, laughing while Yukio rub the back of his neck.

"Two days ago." He said, Rin laugh even harder.

"Then make sure to take one after I explain to you what Mom and I been talking about." he smiled, Yukio blink before smiling and hug his brother again.

"I don't care about that for the moment. I just want to hug and make sure your here with me, Nii-san..."

"Arigatou, Yukio... But you still need to know though..."


Inside Rin's Mind, Rin is also telling Yukio what happen inside his mind

After Yuri finally convinced Rin to wake up, they began to walk away from the darkness, hand in hand and the blue fire following behind them.

"Oka-san..." Rin started.

"Yes, sweetie?" Yuri asks,

"Um... Is it okay if I love Yukio more than a brother should?" he suddenly asks, his mother look at him with wide eyes before smiling and laughs.

"It's alright dear, nothing is a forbidden relationship to the demons." she said before stopping, Rin followed suit and look ahead of them where he saw a ray of light and heard voices he never thought he would hear again.

"The blood moon is where the male submissive demons matured. It is the time that their body began to change inwardly and have the female reproductive organ." Mephisto?

"Blood moon?" Rin asks before Yuri shush him.

"You need to listen on their conversation."

"What?" Yukio's voice as well, he finally heard the voices he always wanted to hear.

"Your smart but not very smart. Like I said male submissive will have what the female have, meaning,they'll have the vagina, uterus, the ovaries, and what not. The penis of the male submissive will not be replaced by the vagina instead the vagina will be found in between the penis and the anus. Once the male submissive had finish transforming they are able to be pregnant and give birth to a baby like how a woman would."

"Is that true mom?" Rin gapes, while Yuri nodded smiling

"Isn't that a bit risky?" Yukio asks, and from the tone of his brother's voice, Rin knows that Yukio is fidgeting as always when it comes to women and about their reproduction. "Something bad might happen to them." he heard Yukio continued

"It is, very risky, especially for unmated submissive."

"What do you mean?" Rin and Yukio asks together thought it was only Yuri, who heard Rin.

"Those submissive demons that didn't have their mate beside them might be claim by other dominant demons they don't want to have. Also both demons need to drink each other blood to mark, cover each other with their scent and claim each other. So if the submmissive didn't have a dominant with them, the other dominant will force theirselves to the other and the other had no choice but to drink the blood, either get rape or willingly let the other have his way, and stay with that demon side forever."

"Holy... Shit..." Rin curse before looking at his mom who nods.

"What happen if the submissive didn't drink the blood of the other?" he asks.

"They'll go insane, or probably Yukio, Rin is a submissive demon and your a dominant, which made you the significant other of Rin, so you need to be at his side at all time or else demons will come and kidnap him and force theirselves with him. The nearer the day of the blood moon is coming the stronger will Rin's scent become, and the more dominant demons, like me, will go after him and kidnapped him, force theirself on the day of the blood moon."

"Hold on a minute Mr. Pheles! What do you mean that I'm Rin's significant other?! And What do you mean that there are demons will go after Rin?! And Nii-san is a submissive?!" He heard Yukio shouted while he gape before shouting.

"WHAT?!"

"Just like I said Yukio, for demons, the significant other needs to be someone close to them. And just like said again, the demons will attack Rin because of his delicious scent and Rin is a submissive because he's doing things that women should do, like cooking, household chores and what else. Your a dominant because your protective and had a instinct of husband when Rin is threaten do you not?"

"Mom! Is that true?!"

"Yes, Rin dear..."

"But isn't that incest? Its forbidden to have a relationship with your family, Mephisto."

"Yeah! Yukio is right mom!" Yuri raise an eyebrow at his statement.

"You did asks me about loving Yukio..." She pointed, Rin groaned

"To us, who had a blood of demon, it is not forbidden. Heck it has been a law that twins should mate each other if they are close to one another. There are some cases where the elder twin are the submissive but some also had the younger as a submissive. Well to determine if your a submissive you'll do the 'wife's job' at age 6-8 years old, and a dominant when you felt like protecting someone at the age of 7-9 years old."

"Oh god kill me know... I shouldn't have started to learn about cooking when I was still a Child!" Rin groaned Yuri laughs at him, before they continued to listen.

"Do you think would accept this fact?"

"Yukio is so like you Rin, unsure on somethings.." Yuri tsk-ed making her son to pout.

"It depends on him Yukio, but maybe you should help him with his trauma first..."

"I guess Yukio still have to help you when you woke up..." Yuri said, looking at Rin, who looks at the ground

"But what about the vatican?" They both snapped their head and look at the light waiting for Mephisto's answer.

"The moment Rin will be out from here, you and your brother will leave this place, I'll look for a place that no one knows the two of you and that your far away from the vatican. I'll do what I can, Yukio. Well, maybe I'll look for a place that no demon can enter and probably me, Satan knows how much I want to have Rin now..." They then heard an angry growl...

"Alright! Just ignore the vatican and focus on Rin okay?" They heard Mephisto panickly added.

"Wouldn't be against the law?"

"Do you really think they can defeat a demon like me? Think again Yukio, because I can kill those people with just a snap of y finger."

"But doesn't that mean I'm quitting to be an exorcist?"

Rin then look at the floor knowing Yukio always wanted to be an exorcist and now his leaving it because of him.

'I'm pathetic.' he thought. Yuri look at her son before shaking her head and nugde him forward the light. Rin look at her immediately terrified to see the world. Yuri smiled at him.

"I'll be always beside you." she said, Rin smiled before walking forward, Yuri watch her go before remembering something.

"Oh and tell Yukio that I'll be the one who will talk about what he will do during the blood moon ceremony! It's not good to talk about it where ears can hear!" Yuri shouted, Rin nods at her smiling before everything went black.

And then the next thing Rin's know is that his fluttering his open and look around the room, before looking at his brothers.

"What should I do when the blood moon happen?" he heard Yukio asks, and he speak immediately.

"Mom said that she'll tell you when we find a place to hide. It's not safe if we spoke at a place that people will hear." Rin saw how his brothers went rigid before looking at him. Yukio then lung at him for a hug which he hug back.


Present

'I'm sorry Yukio. You had to quit as an exorcist because of me. I'm sorry.' Rin thought after finishing his story.

"Then I don't have to tell you everything?" Yukio asks, Rin nodded, making him smile. Then moments later the door open and they saw Mephisto entering with Sato and few nurses behind him.

"Hello Rin." she said.

"Hi Sato." He greeted before looking at Yukio and frown. "Take a bath moley four-eyes or I'll bath you myself the moment I stand up..." He threaten Yukio gulp, not because of the threat but because of the fear seeing his brother wet and that he might ravish him immediately.

"O-okay..." Yukio agreed, Rin smiled and look at Sato who was standing at the right side of his bed and was cheking on his condition.

'I'm really sorry about everything Yukio.'

'Everything will be alright Nii-san.'


TBC

Sorry for the late update

And

Thank you

*AiMila

*Sakuramochi

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*RainStorm2122

For reviewing and yes the song from the previous chapter is from -Man I think the song was perfect for Rin's condition.

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