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A Bad Day ... Or Is It?	By : Sparrowhawk Category: +. to F > Blue Exorcist (Ao no Ekusoshisuto) > Blue Exorcist (Ao no Ekusoshisuto) Views: 18308 -:- Recommendations : 0 -:- Currently Reading : 2
Disclaimer: I do not own Ao no Exorcist or any of the associated characters. Ao no Exorcist is the property of Kazue Kato. This is a fanfiction, only. I make no money from this.

Chapter List
- 1-A Bad Day ... Or Is It?
- 1
Hey ya'll! This is my second fanfic on here, and totally unrelated to my first "A Heat to Overcome." For anyone who may not have bothered to read the summary of what's in here, there is incest. If that bothers you, please don't bash my story, just leave quietly and forget you ever saw it. Please and thank you! Otherwise, for all you others out there who are incest, yaoi, bondage fans, please feel free to enjoy! This is a Rin x Yukio Okumura pairing from the anime Ao no Exorcist (;

Warnings for anyone who'd like to know: profanity, male/male sex, master/slave play, masturbation, a weird sickness that makes Rin hornier than a burrow full of rabbits, incest (though that one probably should have been mentioned third in the list), dirty talk, embarrassing and awkward moments (laugh)

If you're all okay with that, proceed!

A Bad Day … Or Is It?

Rin Okumura woke feeling terrible. The summer flu had been going around the academy. In fact, Yukio had had it just last week—throwing up, fever, chills, the works.

“Niisan,” Yukio called, straightening his exorcist coat as he walked across the room to drag his brother out of bed. “Niisan, wake up.” He shook Rin’s shoulder, sighing exasperatedly when his older brother shrugged his hand off and rolled onto his other side.

“Ugh … I’m not feeling so good, Yukio.”

Concerned, Yukio reached over his sibling and put his hand on his forehead. “Hmm … you do have a slight fever. You must’ve caught the flu that’s been going around. I think it’d be best if you stay home today.”

Rolling over, Rin cracked his eyes open. “Arigatou, Yukio.”

Shocked by what he saw, Yukio stared. Rin’s face was flushed, his bright blue eyes made even brighter by the moisture in them, his skin slick with sweat, lips parted and slightly swollen as if he had been kissed only moments before. His heart stuttered and, clearing his throat awkwardly, he turned away. “Is there anything you need before I go?” He had always admired his older brother, but never had he thought about him in that way. Kami-sama, but he was beautiful.

“Some medicine?”

Shaking his head at himself, Yukio stood, facing his brother once more. “All right. I’ll bring you some medicine and some water.” He threaded his fingers into his niisan’s already mussed hair. “You just get some rest.”

“N’kay.”

Smiling reassuringly, Yukio walked out of the room. If his hand lingered a little longer on his brother’s head than was strictly proper, he didn’t dwell on it too much. He retrieved a water bottle, medicine, and a cool pack from the kitchen and returned to their shared room to find Rin was asleep again. Kneeling by the bed he opened the cool pack and stuck it to his niisan’s forehead. Then he sat him up, waking him briefly to take a drink of water and swallow the medicine. Laying him back down, he reached toward the foot of the bed to cover him up with the blanket when he stopped, a little shocked to see a “tent” in the front of his older brother’s pants. He reached out as if to touch it, but jerked his hand back when he realized what he’d been about to do.

“What am I doing?” he muttered, tucking the blanket up under Rin’s chin. They were both boys. Having an erection in the morning was normal. Just because he had never seen Rin have one before didn’t mean he never did. “See you later, niisan. I hope you feel better.” On impulse, he bent and kissed his brother’s temple before taking his leave.

Some hours later Rin woke again. “Itai,” he groaned, putting a hand to his aching head. He glanced around the room and found a packet of medicine and a water bottle on the desk beside his bed. On his forehead was a cool pack that was no longer cold. Yukio must have left them before going to school. That was just like his little brother, always wanting to take care of him.

It was at the moment his bladder decided to make it known it was full and needed relieved. He struggled into a sitting position, paused for a moment to regain his breath, and then pulled himself upright. Did Yukio feel this bad, this weak, when he was sick? Yukio had often been sick as a child. He, on the other hand, couldn’t remember ever once being sick. Maybe it had something to do with his demon blood.

Taking a deep breath, he stumbled to the wall and, using it as a support, made his way out of the room and into the hall. Thankfully the bathroom was right next door, otherwise he wasn’t sure he would’ve made it before having an “accident.”

Once in the bathroom, leaning on the nearby counter for support, he unclasped his pants, freeing his morning erection, and released with a long sigh. Closing his eyes, he waited while the stream slowed and then trickled to a stop. It was when he opened his eyes and looked down to refasten his pants that he first began to think something wasn’t as it should be. He shouldn’t be erect anymore, but he was.

“What the hell is going on?” he wondered, reaching down to curiously touch the swollen head. His cock twitched in pleasure at the attention, and he moaned, then clapped his hands over his mouth. Did being sick do this to you? When Yukio was sick nothing like this had ever happened to him that Rin had seen, he had just thrown up a lot. But … his stomach didn’t feel bad. It felt a little weird, warm and somewhat tingly, but not like he was going to throw up.

He glanced down at his dick again, but it was still the same, still erect, still hard and swollen. Maybe he was sexually frustrated. The last time he’d actually masturbated was at least three weeks ago. Resigned, he sank to the floor. There was nothing for it but to deal with it. At least Yukio wasn’t due home for some time.

That in mind, he grasped the base of his shaft and nearly screamed for the shock of electric pleasure that raced through his balls, up his dick, and down to the tip of his tail. Cum leaked from the slit of his cock onto his fingers. He had had an orgasm with barely any stimulation at all. And he was still erect. “Crap,” he cursed, rapidly stroking his hand up and down the lubricated organ. “What the hell’s wrong with me?”

A familiar mewl and a laugh came from outside the door.

“Kuro?” Rin asked disbelievingly. Usually when he did this kind of thing, Kuro was gentlemanly enough to keep to himself.

Need some help, Rin?

“N-No, that’s all right. I’m—Wait a minute! Kuro, what do you mean ‘need some help?’ Do you know what’s wrong with me?”

There’s nothing wrong with you. It’s normal for a demon of your age and species.

“Species?”

Kuro laughed again. Well, if you do feel like you need some help, give me a call. I’ll be down in the kitchen.

“Kuro, wait! Kuro?!” But the demon cat was gone.

Cursing, Rin started jerking himself off again—harder and faster than before. This fever wasn’t natural. It didn’t feel right. It made him feel hot in all the wrong ways. Even his asshole felt hot. And it was twitching. Leaking. How could Kuro say there was nothing wrong with him?

Within less than five minutes, he came again. This time, he was more than relieved to see his penis going limp. He quickly zipped up his pants before it could do anything else strange and got his knees under him in preparation to stand when he overbalanced and fell flat on his face. He cursed—very loudly—and pushed himself up onto his elbows only to find he could go no farther. His arms and legs were too weak and shaky to push him the rest of the way upright.

Then he felt that familiar stirring in his groin again and hit the floor with his fist, cracking the tiles. “Damn it! What kind of sickness is this?!”

Collapsing resignedly onto his side, Rin decided to try to ignore it. Sometimes these things went away if you stopped focusing on it, like a persistent itch.

He managed to do all right for about half an hour as he kept his mind occupied by playing tic-tac-toe, solving math equations, and planning what he was going to fix for dinner that night. As he was deciding whether or not to use a green salad vs. a potato salad, he absently reached up to wipe his forehead of sweat and realized his fever had gone up. He felt like he was in an oven. In fact, it was bad enough he was beginning to get dizzy. Somehow he had to cool himself down.

Yukio wouldn’t be home for a while, so he stripped down to his briefs. Besides, it wasn’t as if his brother hadn’t seen him naked before. Of course, the “problem” between his legs would have to be dealt with before his ototo returned. It would be awkward, not to mention, embarrassing if Yukio saw him like this.

“Yukio …” he mumbled to himself, one hand straying to his erection, the other sliding up to fondle his oddly hard nipples. He wondered what his little brother was doing. Was he in class? Was he teaching the special exorcist class? Was he on his way home? Having nothing with which to tell time, he couldn’t be sure what his ototo might be doing or where he might be. Which was, strangely enough—very annoying.

No … wait. What the hell was he thinking about while jerking off? He should be thinking about Shiemi. A girl.

Gods, who was he trying to fool? Shiemi was pretty and fun to be around, but she wasn’t what he wanted. He wanted someone who wanted to take charge of him, who would control him, allowing him to thrust into them. But … his brother ….

He shouldn’t be thinking about the last time he’d seen his younger brother naked, or about the cute moles on his left hip, or how hot he looked in his exorcist coat—not in regards to temperature. He shouldn’t be thinking about Yukio between his legs, his soft lips wrapped around a very excited part of his anatomy. And he definitely shouldn’t be thinking about pinning his brother against the tile floor, rubbing his hands over the firm muscles of his chest and abdomen while Yukio whispered dirty instructions in his ear, kissing his neck and collarbones while he lowered himself onto—

Oh, hell no! Whether he was gay or not wasn’t the issue anymore. He wasn’t a catcher. He was not an uke! He wasn’t. He wasn’t. He wasn’t! He refused to find pleasure from a place where things were meant to come out, not go in! Even if his asshole was twitching and leaking like crazy!

Then he was in orgasm again and didn’t have the time or brain capacity to think about bottoms or tops. All he knew was pleasure. Blissful, tormented pleasure. His spine arched, the fur on his tail stood on end as it coiled and uncoiled around his leg, a strangled cry escaped his throat, and cum once again dirtied his hand, abdomen, and the floor. He was going to have one huge ass mess to clean up when this was over. Whatever this was.

But he didn’t have time to think about that because his tail was … his tail was rubbing against his balls, squeezing them and teasing them in ways he hadn’t known existed. If fluffed its fur, tickling in such a way that he was writhing and moaning and before he knew it he was hard again. He swore the thing had a mind of its own! He had very little control over it, if any. Yukio had once commented on it. Saying something like … it reflected his emotions and mood swings and sometimes his baser demon urges or some such nonsense. But … but ….

“Woah!” he shouted, shocked to feel his tail slithering down the back of his briefs. “No … you … don’t!” he grunted, grabbing it before it could go all the way. “I am not a fucking uke!” It struggled and jerked indignantly with strength Rin had never realized it had. The movement made him groan. He had forgotten how sensitive his tail was. Yukio, without realizing, had once grabbed it when they were having one of their rare wrestling matches of which Rin was usually the winner. He hadn’t expected his ototo would try to use his tail, and the shock of it, the wonderful and completely unforeseen arousal it had sent flooding straight into his groin had given him an instant boner. Of course, at first Yukio didn’t notice. He kept tugging on it, relentlessly pulling despite his older brother’s protests and his cries for him to stop. Yukio was having so much fun getting the best of his sibling that he didn’t realize until too late what his grip on Rin’s tail had done to him. The match had ended with both brothers embarrassed, and they came to a silent agreement to never, ever speak about the “incident” again. It had become something of an understanding between them that no one would be allowed to touch his tail. And no one except Yukio would be privy to the knowledge of how sensitive and, therefore, vulnerable it was.

His tail twisted, making his hips jerk. He was going to cum again just by, unintentionally, squeezing and stroking the thin appendage. It didn’t help anything that memories of the “incident” kept popping into his head—Yukio’s embarrassed face when he realized what the soaked front of Rin’s pants meant, the way he had shyly refused to meet Rin’s eyes for the next two days and, more than any of that, how it had felt to have his brother jerking on his tail like that.

He had never honestly felt anything more than brotherly love for Yukio until that day. And thereafter he had tried very hard to forget the feelings of that day. It was a misunderstanding. An accident. A mistake. He had thrown himself into his exorcist training. He had forced his eyes to follow a girl, any girl, who just happened to be Shiemi who, not so incidentally, harbored romantic feelings for his little brother.

Cum dribbled from the head of his cock. “Damn it.” Why hadn’t he realized that until just now? To weakened with pleasure to keep his grip any longer, he let go, his hands falling limply to the floor as his tail, freed at last, dove back into his pants. Realizing that this … thing was going to happen no matter what he did to try to stop it (short of cutting his tail off), he shimmied the rest of the way out of his briefs, defeated.

He tensed when it nudged at his entrance, but it didn’t immediately penetrate. Instead, it began to rub back and forth over the muscles as they continued to spasm greedily, spreading the moisture and gradually working to relax the tense ring of his virgin hole. He was beginning to almost enjoy the sensation when it stopped, the moist tuft at the tip of his tail coming to rest in the center of the closed orifice.

“Nnn … Nngh … Ah! Aaaah—SHIT!!” he wailed, his asshole burning as it was relentlessly stretched and his tail worked its way inside. He writhed around on the floor, trying in vain to relieve the agonizing pressure, trying to find a position that wouldn’t hurt quite so much.

Finally, he came to his knees, ass in the air, and face against the floor. By this time his tail had started to thrust in and out of him with subtle gyrations to keep his orifice stretched and ready. Thought ready for what, he wasn’t sure. White lights and dark spots battled for dominance in his vision as discomfort and pain became less uncomfortable and painful, and more orgasm chasing, hip shaking, gut tingling, inside melting, mind numbing, mouth watering ecstasy.

His breathing became more labored. Sweat coated his skin. His stomach and loins felt tight. He wanted to cum so badly! But just his tail wasn’t enough. He needed something more. Something bigger. He needed Yukio to come home! Surely his little brother would know what to do to tame the fire throbbing deep in his body. His twin was smart. He always had the answers.

Today was turning out to be one of the worst bad days ever! It was definitely going on his “Suckiest Days of the Year” list.

*** ***

“Niisan, I’m home,” Yukio called wearily, trekking slowly up the stairs and down the hall to their room.

Today had been hell. He hadn’t been able to concentrate all day. Besides being worried about his older brother, he couldn’t get that image of his brother’s flushed and feverish face out of his mind!

“Niisan?” he called again as he opened the door to their room. The bed was empty. He glanced briefly around the room, but didn’t see his brother anywhere. Where could he have gone? “Rin oniisan?”

When no one response was forthcoming, he decided his twin must’ve gone to use the restroom.

Sighing, he set his school bag down, took off his coat, and loosened his tie. Then he walked next door. Normally he wouldn’t bother Rin in the bathroom, but worry had been gnawing at him all day. Not to mention the … other concern. But that he ignored. Rin didn’t usually get sick. Maybe he had fainted. Or maybe he was just too weak to get back to his bed. He knew he should have stayed home!

Setting his knuckles against the door, he knocked softly. “Niisan?” When there was still no answer, he pressed his ear to the door. “Niisan? Are you okay?”

He frowned when he heard labored breathing punctuated intermittently by whimpering cries. Blushing, though he wasn’t quite sure why, he reached for the door handle and, for some reason, hesitated. Why the hell was he so nervous? This was Rin. He was sick. He couldn’t be doing anything that others might be embarrassed to see.

A strangled shriek came from beyond the door, and Yukio could wait no longer. He charged into the room … and froze.

“Y-Yu … kio?” Rin sobbed, flushing bright red when he felt his twin’s eyes settle on his upraised ass. “M-Matte. Don’t … Don’t look.”

“Niisan … what—?”

“I … don’t know. Hnn! It’s just—There must be something wrong with me. I can’t—NNGH! I can’t stop! Yukio … Yukio please … do something!”

Yukio swallowed, desire coiling in his lower stomach. Why hadn’t he noticed how breathtakingly beautiful Rin was? He had been battling temptation all day, and now … now his brother was laying there in front of him, ass raised, cum coating his hands, smeared across his stomach and chest, pooled below him on the floor, wetness seeping from his puckered entrance where his tail pistoned in and out of him wantonly, now he was asking … no, begging him to do something. He shouldn’t. By all rights he should go find a doctor or maybe another demon that could help. Kuro, for example. He might know what was going on. He should be embarrassed, mortified, maybe even disgusted.

But he wasn’t. No. He was aroused.

If this was a test to judge whether they would be sent to heaven or hell, he mused absently, he would fail, for the temptation was too great. He was undone.

“Yukio?” Rin called uncertainly. He gasped when his tail was ripped from his asshole, and then shuddered when a hot mouth enveloped it, sucking away the sweet nectar that had accumulated in the fur. “Aaahn … Yukio …”

“Your tail has always been really sensitive, hasn’t it aniki?”

“U-Un.”

“If I pull on it … I wonder what will happen?”

“Yuki-oooh! Nnn … s-stop. If you do that I’ll—” Rin threw his head back, groaning unashamedly as Yukio tugged on his tail. It felt so good. He couldn’t believe how good it felt. Even better than the “incident.” “Yu-Yukio … hnnn … not just there.”

“Not just there?” Yukio repeated teasingly. “Then … where do you want me to touch?”

For once, Rin’s tail obeyed him, wrapping around Yukio’s hand and drawing it down to his backside. “Here … too.”

“Manners, niisan,” Yukio scolded, jerking hard on his twin’s tail.

Rin lifted his ass higher in response to the sharp pull, cum splashing into the small pool that had collected on the floor. “Aaah! P-Please, Yukio. Please … back there, too. I … I’m so hot I can’t stand it!”

“You’re so lewd, aniki,” his twin purred, gently patting Rin’s upturned rear. “Who knew you were a neko. Look at you, drenched in semen and yet you still want more.”

“Y-Yes, I want more. Onegai, Yukio. I’m so hard … so hard for you. I want you inside me!”

“Hmm.” Yukio dipped the tip of his finger into his sibling’s moistened asshole. “I think I’m beginning to understand what’s going on now.” He withdrew his finger to a whimpering protest, but before his older brother could voice a complaint he reached down, flipped Rin over, and lifted him bodily into his arms. “Let’s go back to our room, niisan.”

Rin put his arms up around his twin’s neck, burying his flushed face in his warm chest as he mumbled an agreement. In his brother’s strong arms he felt his body relax for the first time. He was still hard, still feverish and overwhelmed by lust, but just the small amount of contact between his body and Yukio’s was enough to put his troubled mind at ease. Whatever this sickness was, Yukio somehow made it better, more bearable than it had been all day. Maybe today wasn’t going to be so bad after all.

Somehow Yukio managed to get their bedroom door opened and then shut again without dropping his elder sibling. Instead of putting him in his own bed, though, he carried him to the other side of the room where Yukio’s bed stood and deposited him carefully on the neatly made blankets. He straightened, smiling as he removed his tie, unbuttoned his shirt and shrugged it off, and then undid the button and zipper of his pants. Rin watched, no little amount of interest and anticipation in his sapphire eyes.

“Niisan,” Yukio breathed as he crawled back onto the bed, legs and arms straddling his twin’s naked body. “You do understand what this means, don’t you? If we continue, if you let me do this, there is no going back.”

“Hey, Yukio …” Rin whispered, reaching up to caress his little brother’s cheek. “ … you remember when we were wrestling that one time and you … grabbed my tail?”

Yukio nodded. He remember that “incident” all too well. He could have died from embarrassment. Although, if Rin’s scarlet cheeks and shocked expression were anything to go by, so could he.

“Well,” Rin paused, swallowing nervously. “I think I’ve … wanted you ever since that day. I just didn’t realize it. I didn’t want to think about it, to admit that I … that I have more than brotherly feelings for you. I was scared.”

“Are you still scared?”

Biting his lip, Rin nodded. “Un, I am.”

“If I told you our feelings are the same, would you still be scared?”

“Th-The same?” Rin mumbled, eyes wide in astonishment. “But … Shiemi—”

“It’s one-sided on her part, niisan. Have you ever seen me pay the least bit of attention to her beyond work? I didn’t notice it until today, but … you’re the only one on my mind. Always. No one else holds my interest as completely as you do. So, I’ll ask again. Knowing my feelings, are you still scared? There are a lot of things to worry about, I know, but are you willing to walk this path with me?”

“Baka,” Rin replied, pulling his brother’s head down by the back of his neck and pressing a chaste kiss to those soft lips. “Of course I will. I’ve loved you since you were born.” He shrugged awkwardly. “Now that love is just a little different.”

“You’re the baka, niisan.”

“Oh, right. Of course I am,” Rin agreed sarcastically. “How could I forget?”

“Very easily, it would seem. Just as you have apparently forgotten the burning of your body.”

“As if I could forget that,” Rin scoffed. “It burns like all hellfire. So hurry up and do something about it, Yuki—Nnn!”

The noise of surprise soon became a low moan as Yukio’s lips and tongue wreaked havoc on his mouth, brain, and groin. Why was his little brother such a damn good kisser? Rin had never been kissed by anyone before, but he knew a good kiss when he experienced it. And this … this wasn’t a good kiss. It was a great kiss. It made shudders ripple through his body. Goose bumps raced across his skin. His mind felt hazy, drowned in new and confusing, though more than pleasant, sensations. His tongue felt like it would just melt.

“Rin-niisan,” Yukio breathed against his brother’s lips when they parted. “You look … so beautiful like this. So sexy. I can’t believe how long I’ve seen you … without really seeing.”

Rin only stared up at him blearily, mind too hazy to process the embarrassing words, his body yearning for something he didn’t quite understand.

“Stay here for a moment, niisan,” Yukio murmured, nibbling one adorably pointed ear and then sliding off the bed and moving to the other side of the room. Unlike others who knew of Rin’s demon blood and, therefore, found his demon characteristics unnatural and disturbing, Yukio had always thought they gave his older brother a roguish, untamable appearance. When his tail had manifested itself, it had turned that wild look into that of a cute little animal. A fox or a ferret. Cute, but still dangerous. But, Yukio realized, it was that exact combination that kept him constantly at his twin’s side.

“Yukio?” Rin called from the bed, half sitting up to watch his younger brother as he opened the middle drawer of his desk and began to rummage around inside. “What are you doing?”

“Kuro … asked me to buy something for him a few days ago, but for some reason after I bought it he didn’t want to use it, so I put it away in here. Now that I think back on it, I believe he knew this was coming.”

“Knew … what was coming?”

Yukio waved the question aside as he withdrew the object of his search. “Never mind. I’ll tell you about it later. Right now … how do you feel about wearing a collar, niisan?”

“A … what?” Rin asked, staring dumbfounded at the object Yukio held out toward him on one finger.

“Beautiful, isn’t it?”

“Y-Yeah …” It was a soft black leather with a silver bell at the front and blue gemstones spaced around both the upper and lower rims. The clasp was also silver and would adjust to fit the neck of any medium sized house pet. Or, he thought with a blush, the neck of an average teenage boy.

“Will you wear it?”

Rin swallowed, both excited and nervous since he saw, attached to the collar, there was a matching leash. “If … If you want me to, Yukio.” How could Kuro know this would happen? Or rather, how could he possibly know Rin had a fetish for being controlled?

“I’m surprised Kuro knew my preferences,” Yukio muttered to himself, echoing Rin’s thoughts.

“Our preferences,” Rin corrected, looking away shyly when his twin stood directly over him, looking down at him with unreadable eyes.

“Oh? You like being controlled, niisan?”

Rin shivered at his brother’s wicked tone and then shivered again when his warm fingertips brushed either side of his neck in the process of putting the collar on him. He raised his eyes tentatively, gasping when the black leather was tightened and fastened in place.

“Too tight?” Yukio inquired, also nervous, though it didn’t show. After all, he’d never done this before either.

It was a little tight, but not enough to be uncomfortable, so Rin shook his head. He stopped almost immediately, startled by the tinkling sound of the silver bell.

“That’s a nice sound.” Yukio tugged lightly on the leash, drawing his older brother toward his waist and making the bell ring again. “Maybe we should think about purchasing another collar for your other end. Would you like that, niisan?”

Breathing shaky, arms even shakier, Rin nodded. His balls felt so tight! If Yukio kept teasing him like this, he was going to cum without even being touched. “Yukio,” he panted, leaning farther toward his brother to nip and kiss that taut stomach hungrily. “Yukio … Yukio, please. I want you.”

“Already begging, niisan?” His eyes half closed in pleasure as his older brother’s hot mouth worked its way lower until he was mouthing the waistband of Yukio’s boxers. “My adorable aniki. My lover. My slave. My pet.” He seized Rin’s hair, yanking his head back. “Tell me you belong to me.”

“Y-Yes,” Rin hissed, the slight pain only making him harder. “I belong to you, Yukio.”

Leering, Yukio grabbed his twin’s tail in his other hand and pulled hard enough to yank Rin’s hips upward by a few inches. “Again.”

Rin whimpered at the delicious feeling the action sent through his cock, testes, and ass. His hips thrust without conscious thought toward his tormentor. “I’m yours, Yukio. Hnnn. I’m yours. Haa-Aaaah! Only yours!”

“Very good. And now … your reward.” Transferring the leash from his hand to his mouth, Yukio released his niisan’s tail and then, with a dark, lustful glance at Rin, began to undress his lower half. Some part of him was still extremely nervous, but the way Rin was whimpering and pleading with his eyes with every inch of skin that was revealed made that nervousness inconsequential. If Rin was enjoying it—though he couldn’t deny he was, as well—then nothing else mattered.

Once his pants were down at his ankles, he kicked them away and began work on his boxers.

Rin panted, his pink tongue darting out to wet his dry lips, the suspense becoming night unbearable. He ground unconsciously into the bedspread. “Yukio …” he graoned. “Please, Yukio … hurry.”

“Why don’t you do it for me, then?”

A little shocked at his younger brother’s daring, Rin could only gape up at his twin’s completely serious face.

“Well, pet?”

Galvanized into action with the use of that pet name, Rin reached out his shaking hands and pulled Yukio’s boxers the rest of the way down his legs. He waited until Yukio had stepped clear of them before tossing them over where his pants had been unceremoniously discarded and then looked back up to his sibling for instructions.

Yukio laughed softly when Rin’s eyes immediately fell upon the head of his hard member and remained fixed there. He knew it wasn’t Rin’s fault, but it was amusing nonetheless. “What’s wrong, pet? Do you want your little brother’s big cock up your ass?”

Rin opened his mouth to reply, but nothing came out beyond an embarrassing squeak. He had never in his life believed he would be in this position, naked and wanted with a man’s huge dick in his face and, incredibly, enjoying every minute of it. More turned on than he’d ever been, he eagerly leaned forward against the restraint of the collar and Yukio’s grip on the leash and licked the very tip of that same dick.

The unexpected heat and moisture on such a sensitive place made Yukio stiffen, his shaft throbbing, a noise of surprised pleasure escaping his lips. “That’s right,” he murmured seductively, breath ragged. “Lick it just like that.” He took the leash from between his teeth and tugged Rin further toward him. It was quickly rendered unnecessary, however, when his aniki grabbed him by the hips and dragged his mouth over and around his entire length. “Are you enjoying this, niisan? You like tasting your brother’s cock?” Obviously Rin was enjoying it, but Yukio wanted to hear him admit it.

“Mmm … Murry mush.”

Which Yukio took to mean, “Very much.” He smiled at the response and the vibrations that shuddered through his nether regions when his aniki spoke. “Get on your knees, pet,” he demanded as he affectionately patted Rin’s wonderfully soft black hair and fondled one of his ears before shoving him away. His elder brother voiced a protest that was quickly cut off by a cruel jerk on the leash. “On your knees. Now.”

With a sharp slap to his behind, Rin complied. He rolled onto his stomach, shifting his body so his rear faced Yukio, and then pushed himself up. As before, he didn’t have the strength to do more than raise his ass and lock his knees so they wouldn’t fold. He dug his fingers into the blankets, unsure of what was going to happen next.

He gasped in pain when both of Yukio’s thumbs found their way into his anus and stretched him open—far wider than his tail could ever manage.

“Ngh! Y-Yukio … that-that hurts! You’re gonna … ughn … rip me open!”

“Sorry, niisan,” Yukio apologized without releasing his hold, “but I can’t stop myself anymore.”

Rin screamed in pure agony when Yukio’s swollen member penetrated him, helped only a little by the stretching his thumbs had managed. He struggled to push the intruder back out, clawing at the bedspread as he tried to wriggle away. “Yukio! Yukio, please! It hurts!! Please take it ooouuuUUNGH!! AAH! AAAH!!” Gods, it hurt! It felt like he was being burned and split in two all at the once! But Yukio wouldn’t relent. The only relief was when his thumbs came out, but it was short lived as he grabbed the leash and with it, pulled Rin’s head back as far as it would go, forcing him to back onto the cruel intruder in his ass to avoid being strangled. With the collar tight around his neck he could no longer scream. All that came out were high pitched whines and wheezing sobs. Tears rolled down his cheeks. He was dying. He knew he was dying. How could there be so much pain if he wasn’t?

Despite his confidence in his demise, the pain gradually receded, and as it did, Yukio’s grip on the leash loosened. He bent over Rin’s back, gently kissing the nape of his neck. “I love you, niisan.”

And with those four simple words, Rin felt it would all be okay. The pain no longer mattered. “Say … it again,” he requested between sniffs.

“I love you. I love you more than anything, niisan.”

Rin sighed, all the grief and pain dissipating in that single breath. And, he noticed now, he was still hard. “Again?”

“I love you. Forever. No matter what, I love you, Rin.”

“I love you, too, Yukio,” Rin replied quietly. “Arigatou.” He glanced back at his twin seated deeply inside him. “Am I bleeding?”

Yukio laughed. “Is that what you’re worried about? I might be big, but I knew you could handle me. I would never purposefully make you bleed. Still, I think it might be a good idea if we were to find something to stretch you out more. You’re tighter than I thought you would be with how long you seemed to have been going at it in the bathroom. I do apologize for hurting you, though.”

“It’s okay. Whatever you do to me is fine. Besides, it doesn’t hurt anymore.”

Yukio wriggled his hips provocatively. “It doesn’t? Not at all?”

Rin shook his head, unable to hold back his moans. “Ooooh … Y-Yukio … feels … hnnn … weird. Like I’m being stretched … I feel … so full!”

“But it doesn’t feel bad?” Again his brother tossed his head back and forth.

“Nnnn-No! Feels good. Feels good, Yukio! P-Please … touch … touch my tail, too.”

Chuckling, Yukio wound the leash around his wrist and tied it there. “Are you sure that’s what you want me to touch, niisan? Don’t you want me to touch …” he reached under his sibling and grasped his hot, throbbing length, squeezing cruelly, “here as well?”

“YES!!” Rin shrieked, his hips jerking spasmodically. “Yes, please, Yukio! Aah … Haaahn! There … and my tail!”

“Damn,” Yukio cursed, hissing as his older brother’s asshole milked his cock. “You really like to rile me up. You’re so slutty, niisan.” Catching Rin’s tail with his other hand, he jerked it back toward him. The leash, tied around the wrist of that same hand, tightened even as Yukio leaned over him and whispered in his ear, “But I like you this way.”

Rin gasped as the collar pressed into his windpipe, making it hard to breathe. “F-Fuck!” he sobbed, his body suspended on the brink between unbelievable pleasure and white hot pain, the balance maintained solely by Yukio’s skilled hands. It was a delicate balance. The dominant partner had to know the boundaries of the submissive partner even better than the submissive might. Tipped too far toward pain and there was the chance that the bond of trust between the two would be broken forever. Once that trust was gone it was extremely difficult to get it back. But Yukio knew his brother. Even if he was inexperienced, they had played together as kids, had slept in the same bed, had shared their closest and darkest secrets, had trained together and fought side by side. Though Yukio had never known Rin’s body as intimately as he was beginning to learn it, he knew intuitively just what to do to bring his aniki the greatest pleasure.

“Do you want me to fuck you now, pet?” Yukio asked, voice low and dark and dripping sex. “Ask for it. Beg for it. Beg me to ram into you hard and fast, over and over again.”

Rin blushed furiously hearing those dirty words coming from his ever proper younger brother. It shocked him, though certainly not in a bad way. In fact, it was turning him on even more. “Yukio …”

“Beg, pet,” his twin commanded, delivering a stinging slap to his ass, which in turn jerked on the collar around his throat.

“Ngh! Please …” Rin wheezed. He was so hard! Harder and hotter than he’d ever been in his life! Just what the heck was going on? “Please.”

Yukio slapped his hand down again in the same spot, groaning with pleasure as his aniki’s body jerked and his anal muscles contracted around him like a vice. “You’ll have to do better than that, pet.”

“I want you to fuck me, Yukio. Please. I want you to make me scream!”

And he did scream. He screamed in pleasure as he was pushed forward by Yukio’s powerful thrusting hips, and he screamed in pain as he was pulled back onto his twin’s huge cock by his tail and the leash and collar around his neck. Yukio wasn’t gentle. He pounded into Rin’s stretched asshole, shifting his hips now and then until he found the spot that made his brother’s insides spasm madly around his hardness.

“You feel so good, niisan. So fucking tight.”

“Aaah! Har-Harder, Yukio! AAAAAH!!” It felt so good. Unbearably good! Yukio was slamming into him so hard, so deep, making the bell around his neck ring a continuous counter rhythm. Surely his insides were being wrecked. Even if they were, though, he didn’t care at all. “I-I’m cumming … Yukio, I’m cumming!” His whole body tensed in orgasm, his ass squeezing so hard he felt his ototo’s cock was going to pull him inside out. Cum dribbled from his penis, a small amount of ejaculate for that powerful of an orgasm. Since he had been ejaculating just about every hour since early afternoon, though, it was a wonder he had anything left at all.

“Beautiful,” Yukio complimented him in a low whisper, releasing Rin’s tail in favor of pumping his twitching cock, draping himself over his elder sibling’s back and thrusting into him with renewed vigor. His movements quickly lost their smooth rhythm, and with a low, sexy grunt, he came.

Rin jumped when something warm and wet coated his insides and leaked out from where they were still connected. Yukio held Rin’s exhausted body in place until every last drop of seed had been expelled into his ass. Then, with a wet, sucking sound that made them both turn a little red, he withdrew and they both collapsed onto their sides, breathing hard.

“Finally,” Rin sighed, at last feeling sated. He looked over his shoulder at his little brother. “So what’s wrong with me, Yukio? I know you know.”

“Well, to be fair I didn’t expect that Satan had incubus blood in him, so when you came down with a fever I didn’t even think to compare your symptoms with the fever of ecstasy succubi and incubi typically experience when they reach a certain age.”

“Fever of ecstasy?” Rin repeated blankly.

“It’s a fever certain demons experience when their powers mature. It can only be cured by having sex with a human, or half human, partner of that demon’s choosing.”

“So … it’s done now? The fever?”

“Yes … and no. If your fever of ecstasy means you have a large amount of incubus blood in you, then I would imagine you’ll begin to crave sex. It’s an instinctual act of survival for succubi and incubi to gain more power through the absorption of sperm.”

“I thought they drank it.”

“Some choose to do it that way, but like you, there are those who choose to engage in the actual act of sex and absorb it … the alternate way.”

“You mean I can absorb it through my ass?!”

“Yes, that’s exactly what it means. Although, if you wanted to do it the other way I won’t complain as long as you allow me to indulge myself in your body afterward.”

“Well, personally, I’m glad it’s over. Felt like I was suffocating when I couldn’t get my body to settle down. But, you know … I kinda wouldn’t have minded if we went a little longer.”

“Meaning I need to improve my stamina?” Yukio asked, mischief glinting in suddenly lustful eyes.

“S-Saa …” Rin responded, averting his gaze.

Yukio suddenly sat up and moved to the edge of the bed. “Care to join me in the bath, niisan?” He stood and then turned and held out his hand to his older twin. When Rin hesitated, Yukio grasped the end of the leash tied to his wrist and pulled.

With a yelp, Rin tumbled off the bed and straight into his brother’s arms. A scarlet blush swept across his cheeks as Yukio hefted him up into his arms and a thin stream of semen spilled out from between the cheeks of his ass, running slowly down the curve of his spine and dripping to the floor.

Chuckling, Yukio sucked the lobe of Rin’s ear into his mouth and then gave it a parting nip. “I may not have very good stamina yet, but I think you’ll find I recover fairly quickly. Up for another round?”

“Long as I don’t have to stand,” Rin replied with a laugh as he wrapped his arms around his brother’s neck and brought their lips together. “I think,” he murmured shyly, “today actually turned out to be a pretty good day.”

“Hm,” Yukio agreed. “I think we can make it even better. What do you say?”

“Lead on, my Master.”

***************************************************************************************

Definition of Terms

Niisan - brother

Arigatou - thank you

Kami-sama - God

Itai - ouch

Uke - term that originated in martial arts but is used in Japanese gay slang to mean the receptive partner in anal sex, in other words, the "bottom"

Ototo - little brother

Oniisan - older brother

Matte - wait

Aniki - a more formal word for elder brother

Neko - a term more generally used in Japan for the "bottom" partner in lesbian sex, the "bottom" is a neko, the "top" is a tachi

Onegai - please

Baka - idiot

Saa - don't know, who knows

A/N: I know, I know, I love these kinds of incestuous stories way too much! I just couldn't help it, though. Rin and Yukio are one of my favorite pairings, after Inuyasha and Sesshomaru of course (; If you have the time/desire please leave a review to let me know if you liked it! Depending on if more inspiration comes to me, I may continue this story, though the chapters will probably all be stand-alones. It may also turn out to be one of those stories without much of a purpose beyond enjoying seeing the two hotties together having fun sex. But, we'll see! All right, nuff ranting. Thanks for reading and/or reviewing!! Ja ne!
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A Bad Day ... Or Is It?