Inu Insanity

Inu Insanity
-By ForgottenHero
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Disclaimer: I do not own InuYasha and am makng no profit, what-so-ever, from this fanfiction. Any InuYasha related items are respectfully owned by Rumiko Takahashi and her producers.

WARNING: Sexual Situations [Lemons, limes etc...], Violence/Gore and strong Language.

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My Corner:

Hey guys and welcome to my second ever InuYasha fanfiction! As you all know me a bit by now from my other on the go fanfiction A Debt To Be Paid it is lovely to see you all again! I hope this fanfiction is just as successful (and enjoyed) as my other. I will be updating/working on both fanfictions and hope my readers will support me in my first attempts at InuYasha fanfiction!

Anywho, enjoy this new story and best of all, lets all work towards what I can guarantee to the awesome lemons (yes plural!) that will be coming shortly!

Don't forget to Read, Rate, & Review!


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Chapter One: Instinct

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A wolf howled at the crescent moon that shone through the thin streaked clouds. The pale sliver was luminous in the onyx sky, the stars twinkling like tiny diamonds near it, the rays casting the ground bellow in differing hues of blackness and liquified silver. A lone figure glowed in the moon's ghostly light. Their hair, snow-white with natural silver highlights, glowed brightly despite the opaque darkness of the night. Their skin was a smooth, flawless complexion of alabaster that shamed any marble statue. Their eyes with their natural red eyeshadow on the thin eyelids opened slowly revealing slit-pupiled golden orbs. A soft breeze blew through the silent trees, catching the silken moon-kissed hair. The glowing white-silver wisps danced in the dark sky as they blew in the night's gentle breeze, shimmering in the silver rays cast from the twinkling Heavens above.

The golden eyes that bore the striking resemblance to a hawk's stared forwad into the night.

Calculating. Cold. Steely.

The angelic face, impassive and as blank as a piece of parchment so lacking in thought or emotion it was, was stony. Then, suddenly, the sensuously thin, pale lips twitched and slightly turned downwards in a barely noticable way at their smooth corners. The golden eyes flashed with a flicker of heat t only to hen vanish once again in the coldness of the amber-golden stare. The white-haired angel eyed the Heavens, his eyes flaring with annoyance. The dishonor of spring; the disgrace of it all. The white form continued to stare up at the moonlight sky, their eyes surveying the stars in silence.

A little figure watched the tranquil scene nervously, their bulbous yellow eyes fidgeting back and forth between the figure and the three swords that were strapped to their hip. The stranger winced. He did not want to approach his Lord especially when he was still armed! Much less with such blades at his disposal! Two of the blades could cause much pain on his little body. He shuddered at the thought of the immensely powerful swords being used on him. He grimaced and nervously twitched his scaly green claws together, clicking his beak in fear. He was most hesitant on approaching his Lord while he seemed so occupied (A/N: Ah yes the demanding work of star-gazing) yet the news he held was of upmost importance. He grimaced again. Perhaps it could wait until morning and he could feign that the news had just been passed a long to him...

"Jaken." A smooth, deep voice that was silkier and more beautiful then any silk-woven kimino caused the servant to stiffen in horror.

Those large yellow eyes looked upwards to see his Master still looking up at the sky. His Lord barely spared anyone a glance with his beautiful amber-gold eyes. However, when he did, it usually was not a good thing. Usually it meant his Lord was looking down to watch his opponent take their last breaths. He coughed, trying to calm himself and clear his throat. He stepped from the shadows of the forest, holding his hands together, rubbing the scaly palms against each other anxiously.

"Y-yes Mi'Lord?" he managed the little squeak.

"You have something to say to me?" The deep, silken voice murmured coldly.

The toad-like servant flinched. He had truly wondered for the last three centuries if Lord Sesshoumaru could read minds. Shuffling his clawed feet beneath his coarse brown robe, the retainer coughed again and nodded.

"Yes, Sesshoumaru-sama..." he trailed off again.

He watched, bug-eyed, as his Lord then glanced behind his shoulder, pinning the trembling servant with one icy golden eye. He stared into that lethal stare and gulped. He should have known to speak much faster but his Lord was most unpredictable at this time of the century... he must tread softly and carefully yet it seemed by doing so he was irking the infamous dog demon.

"What was your purpose for annoying this Sesshomaru?" Sesshoumaru demanded coldly.

Jaken felt his body slump in disappointment. Of course his Lord wasn't happy to seem him. Sometimes Jaken felt uncared for and thought that if he were to die tomorrow Lord Sesshoumaru would't even blink but continue on, unphased. He probably wouldn't take the time to bury his loyal follower's body. Tears gathered in his huge yellow eyes and he barely repressed the urge to throw himself on the ground and sob until he could cry no more. His beak quivering with dejection, he looked up at the demon, unaware he looked like a beaten puppy. Sesshoumaru regarded the pathetic expression with impatience and something akin to annoyance. Jaken looked most unflattering at this point with that ridiculous expression on his already unattractive face. The demon Lord almost flinched in disgust. The look was so annoying, it was growing to the point he considered kicking the toad into the woods. The demon glared at his retainer impatiently. Seeing Sesshoumaru's patience wearing thin, Jaken straightened his shoulders and put on what he that was a brave face (unbeknowst to him he still looked like a rebuffed puppy).

"My Lord, it is spring. The time of... mating."

He stalled to let the implications to settle in his Lord's mind. He licked his beak slowly, gulping. He truly did not want to conitnue forth with this topic but it was most pressing. Hesitantly, he continued.

"The four Lords are searching out the required mates to bring to the Spring Festival that your family and ancestors have so graciously hosted once every five centuries. It is the festival where the taiyoukai announce their mates..."

Sesshoumaru's stiff, ice like form remained unmoved.

"And why must you remind me of that, Jaken?"

Jaken coughed and squirmed at the whiplash frostiness in his Lord's voice.

"You see Mi'Lord... I know of your er... needs... during this time. So the council and I have... ah... thought of your situation and..."

He trailed off. He was so uncomfortable with this subject.

"And." Sesshoumaru demanded idly, his tone bored but commanding.

The toad felt the sweat pooling down his back. His robe was sticky and sticking to his scaly skin like a glove. He felt his body beginning to shake and the urge to flee into the forest was becoming more desirable every second. He glanced at the treeline, almost sobbing. He wouldn't make it. His wonderful, beautiful, perfect Lord was much to fast!

Reluctnatly, he continued. "We thought that perhaps a harem would benefit you, My Lord. All of the other Lords have done it... and are..."

His feet switching back and forth and repressing the urge to run, Jaken broke out in a sweat when no answer came forth. He stared at his Lord's back fearfully. All the while he was damning those horrible demons who had put him up to this task. This was a suicidal mission!

'Why did those awful counsellors make me tell Sesshomaru-sama? Can they not see, that even I, his beloved and most trusted servant, can be harmed for bringing up such a thing?'

He glanced up to see his Lord staring up at the sky again. Sesshomaru gazed up at the sky, always having an admiration for astronomy as did his father, while he plotted out the situation at hand.

'A harem. I have had such when I was naught but a pup. But now my beast craves for companionship.'

His eyes narrowed in annoyance. He was now six hundred and some years old. The last Festival that had been held was when the Great Dog General and Western Lord, his father, had revealed his human mate much to the council's fury and the entire demon population's shock. The scandal still burned their memory. The council now looked at Sesshoumaru, their gazes hopeful that he would not follow his Father and produce an abomination such as InuYasha. His upper lip curled in disdain. Yes, he knew the council would provide the harem but with disappointment. They would much rather a permanent mate for their Lord.

The Festival was an announcement; an introduction feast for the Demon Lords of Japan. It was the time for them to introduce their mate and to prove they would fulfill their duty to produce heirs.

His noble family had hosted such for the last three generations. It occured every five hundred years since demons bodies grew much faster than their minds but even then it took a very long time for a demon to become mature in both mind and form. A normal demon at a hundred years old would still be a child. InuYasha for example. He was two hundred and fifty years old and was considered to be around eighteen-nineteen in humans years. The aging process was very slow. Usually a demon stopped their aging at around seven centuries; which would be considered mid-twenties in human years and in appearance. Then immortal youth was theirs. The demon Lord's senuous pale lips turned downward very little at their corners, an almost imperceptible frown on his otherwise emotionless face.

It was the duty of the Lord to have a mate. It was necessary to insure an heir for the Lands. Had his Father not done so? He, Sesshoumaru, had been produced after the very festival where his mother had been introduced. He glanced at the moon. It was a crescent in the sky; much like the one on his forhead he had inherited from his mother. His golden eyes were cool, dead. He had recently visited his mother. She proved to be most difficult about giving him the information he needed. He glanced at his three swords, all strapped to his hips. He had acquired much of his father's strength but it seemed he had managed to acquire some of his mother's attributes such as coveting powerful objects. A small smirk formed on his lips. Yes, his father had been his mother's most prized powerful object she had managed to collect. But that was another matter. He had other issues than his forbearer's dalliances.

On the issue of having to find a mate, he was most repulsed by it. He did not want a mate. He found no desire for one either. The timing was completely troublesome as well. With Naraku growing stronger and Rin and Kohaku both under his care (even though Jaken watched over them mostly), he did not have the desire nor the time for a female. His lust for the female form was hardly sated and hadn't been for a long time since he was always on the move, traveling for answers, for wisdom, for power. Yet the festival was coming. It was his duty. Besides protecting his lands and providing for its inhabitants, he was obligated in one more role; to produce a heir that would continue to care for and protect the Western Lands if he should ever fall or step down.

The crescent moon glowed brightly, reflecting in his golden eyes. It seemed his only choice was apparent.

"Jaken, I will not be needing such services." The cool voice penetrated the over-worked and frightened toad's ears.

"M-my Lo-Lo-Lord?." he stuttered in shock.

Had his Lord already found a mate? His brow furrowed. No, it could not be! Wouldn't he had told his most trusted servant? Jaken frowned. Lord Sesshoumaru could not have possibly found a mate. Firstly there would be many signs which there was none apparent. He gazed at his stunning demon Lord in awe. Perhaps he was going to forsake women all together? Such a scandal that would cause! Well, then again, there were demons who preferred their own... gender... then the other. Jaken blushed at the thought. It was rather odd but not uncommon in demon society. Actually it was probably more popular in demon society then in human soci-

"It is time this Sesshoumaru finds a mate." The demon Lord announced coolly, interrupting his servant's thoughts.

Jaken stared up at Sesshoumaru in reverance. "Y-yes Mi'Lord. The council were... concerned." he stammered.

Sesshoumaru continued to stare at the constellations. He had known such. The council did not exactly hide their thoughts and fears well enough. The dog demon felt something uncurling in his stomach. He closed his eyes for a moment. He appeared to be an angelic statue. Beneath the moon's beams, his eyes closed, making him appear as if he were sleeping. He glowed beneath the silvery rays, unmoving and as still as a mountain. Jaken felt his throat catch at his Lord's beauty. He truly was the most divine of all Lords! He huffed haughtily. No demoness was going to refuse his master. Sesshoumaru-sama was going to find a mate within a matter of days while all the other Lords would have been looking for the last decade to prepare for the festival. His Lord's power, beauty, and status insured he would find the most promising and wonderful of mates.

His father certainly had had a gift at finding such women until near the end his last mate had been...

The toad flinched. He should not of thought of that human wench that had destroyed the Western Lands for a good century. And worst off, she had created the adomination InuYasha. That alone made her a horrible witch in Jaken's books. He snorted in contempt of the memory of the human princess and crossed his arms over his chest, tucking his thin arms in his robe sleeves.

"Are you in pain, Sesshoumaru-sama? It is common for demons to experience it during this time." he asked warily, watching his Lord.

Sesshoumaru controlled the growl that threatened to escape his throat. "No. This Sesshoumaru knows no such thing as pain." he murmured back stolidly.

Jaken nodded. He knew as much! His Lord was invincible. Staring at him with awe and adoration, he bowed to the demon Lord and asked,

"Would you like me to do anything for you, Sesshoumaru-sama?"

The demon Lord slowly opened his eyes, fighting another painful stab in his chest. It was normal for this pain for demons. It was the tearing of their souls. When a demon did not find their mate or at least mate with another, their soul began to tear itself into small fragments. Why? Their youki, the essence of their demon form, would begin to manifest in aggitation, trying to persuade the demonic instincts to over rule any restraint. The urge to procreate was deeply ingrained in a demon's genetics. Demons were a war-thriving species; always fighting and dieing. They needed to mate to keep species of demon going.

Cat, dog, wolf... these species were most active during mating season since their species were the most aggressive. They were the species that created the most and lost the most of their population.

It did not help that demons lived on violence. They were constantly killing and being killed. A female dog demon was known to have up to five pups all at once and the weakest one would be killed. Any weak pups or even weak demons later found in their adult life were destroyed. Stronger demons felt a compulsion to kill them. Anything weak did not have a need to exist. For what purpose or what use is a weakling? They could not do anything and had weak genetics - they would taint any future generations and thus were killed off. It was normal for demons to see anything weak as inferior. The species of demons most known for destroying weaker ceatures were dog demons.

Even common dogs, the ones owned by humans (as disgusting as it was to Sesshoumaru to think humans owned the creatures) loved hunting birds, rabbits, frogs, even other dogs... whatever was smaller and weaker. The complusion to destroy those weaker then them ran thick in dog demons. Their instincts thrived on being dominant and insuring stronger, more survivable offspring. Sesshoumaru considered this. From the moment a pup was concieved, he must fight. Fight for the food his mother provided against his siblings. Fight to prove his worth when he was born. He must earn his name - no pup was given a name until they earned it. It was how he had earned his own name, Killing Perfection by the age of a hundred and ten years (roughly nine-eleven years old).

He was the future Lord and had to earn that name. He would have the be the strongest of all demons - especially dog demons - to prove his worth and his right to live. The howl of the wolf called to his inner beast. He longed to transform into his natural form, the Great White Dog, and to run through the land, staving his desires by ripping the throats out of enemies and eating the still-warm flesh of hunted animals. He repressed his desire. He did not have time to enjoy in such dalliances. He turned and looked at Jaken from the corner of his eye.

"Go home. Check on Rin and Kohaku." he ordered in a soft voice that held a steely edge.

The toad servant nodded and bowed. "Of course, Sesshoumaru-sama. I will eagerly wait for you there." he replied before turning around and disappearing into the darkness.

Walking through the forest, Jaken sighed in relief. He was going to live for another day! The dog demon ignored his retainer's departure and then turned his attention to the forest before him. He raised his slender, elegant nose and delicately sniffed the coming breeze. It blew across his face like a cool gush of breath. He inhaled it slowly, his eyes closed, thoughtful. He would have to sniff her out. His mate would be defined by her scent. When he found the right scent, it would trigger an immediate reaction in his senses. He considered this. To think he would not choose his own mate but have it chosen by his youki energy. He arched a brow at this. It was peculiar but for some reason, it had insured many prosperous and well-matched matings for demons since the dawn of their existence.

Once again it was an instinct.

He pondered this. His father had ignored the instinct and had mated his mother, which who he had no connection to as regular mates did, in an attempt to ignore his own desires and to fulfill his duty to create a full-blooded, strong heir. His mother had not objected to being used as such. In fact she had been delighted to add another strong, beautiful treasure to her list. Sesshoumaru was on her list - he was her greatest accomplishment or at least so she claimed. He closed his eyes thoughtfully, brushing away his thoughts. Now was not the time to linger over his creation. He had his own mate to find. He opened his eyes, the amber-gold jewels glowing like two suns in the darkness. He then disappeared in thin air. The trees flew by him as if the world was being sucked backwards. His long legs flew across the land gracefully, his moon-kissed hair flowing behind him, creating the silver glint to the white blur he became due to his speed. The hunt was on.


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"Uuuuhhhhhhgggggggg."

The long, low moan caused the three people hovering over the trembling figure to shake their heads in complete bewilderment. A boy with silver hair held his chest tightly, his eyes scrunched in pain, his body shaking with agony. Above him, among the three who witnessed the boy's torture, a young man with violet eyes and black hair sighed and threw his hands up in defeat, utterly astounded at the ailment his friend was experiencing. He had wracked his mind for the last day and night, watching all the while his friend's condition worsened, only to come up empty handed. The woman beside him, a pretty girl with doe-brown eyes and chocolate-brown hair, shook her head in pity. She rubbed her lover's back comfortingly, trying to placate him. His nerves were shot with stress and she understood he was now at a complete stump. They all were.

"Someone... kill me..." The young boy moaned, his fangs bared as he grimaced.

"InuYasha that is not something to ask for - none of us will consider it." The young man above retorted dryly, his purple eyes become flat with impatience.

The halfbreed growled. "Then fuck off! Leave me alone!" he snapped.

"InuYasha! Don't talk like that! He is trying to help you!" A young girl with sapphire eyes and long, wavy black hair hissed, her beautiful face taut with concern.

He hissed at her, baring his sharp fangs aggressively. "Shut up Kagome! You aren't the one having your heart torn up are you?" he snarled, his eyes flashing red.

Kagome watched, almost hysterical with worry, as the halfbreed then moaned again and returned to lying in a fetal position as he groaned and whimpered his pain. The monk, Miroku, stood beside her, his face a picture of worry and confusion. The slayer Sango stood beside him as always, her soft brown eyes shimmering with apprehension. The trio had watched their friend for the last two days become worse and worse. It had all started as a simple pain in the hanyou's chest and had exploded into this. He was pale, clammy, and shaking. He was always complaining of a searing pain in his heart and kept insisting that his heart felt like it was slowly being torn into little pieces. The group had watched, helplessly, as his condition continued to inflate at an alarming rate by the minute.

Hearing him growl again, they backed away, leaving their friend by the campfire. They gathered together near a tree where Kirara and the little kitsune Shippou slept, unaware of the tense scene and stressed atmosphere. Kagome looked at Miroku beseechingly, her stunning face taut with worry.

"Houshi-sama, what is wrong with InuYasha?" she asked him the question she had asked repeadetly for two days.

Miroku crossed his arms in his robe sleeves, his look thoughtful and even a bit annoyed. "I do not know! For the last two days his conditioned has increased dramatically. I have looked him over every hour. Every time I appraise him there is no evidence of anything wrong. There is no physical wounds or ailments. I checked his spiritfual energy and there was nothing wrong with it - in fact it was stronger. It doesn't make sense. His human spirit is pale in comparison with his demon which is odd but not bad. I think his human spirit is lessened because he just finished a New Moon cycle. I have never really examined his spiritual energy before so it is probably normal for InuYasha's demon energy to be stronger since he has more demonic qualities."

The priest sighed and ran his hand through his thick dark hair.

"Anyways, I can not find anything wrong with him. No wounds, no sickness, no ailments... He hasn't eaten, drank, or touched anything that could have caused this. Nothing is in disarray with his body or spirit. This is... utterly fustrating. I have never seen anything like this before." The monk stated tersly, his violet eyes showing his puzzlement.

Kagome nodded. She had suspected as much. She glanced at the writhing halfbreed and frowned.

"Is it a demon thing?" she asked softly.

Miroku shook his head and sighed again. "I don't know. Sango can you think of anything that might be triggering this?"

The slayer looked at her friends helplessly, her pretty face puckered into a frown.

"Nothing. I can't remember anything my teachers taught me that even mentioned this or anything related to it. Besides, any knowledge of demons I have isn't focused on their daily lives - we focused our studies mainly on how to destroy them and what their weaknesses were. We don't know anything about their rituals, personal life, or the aspects of how they live. I only know their abilities and how to counteract them. Basically, my knowledge is centered in destroying demons - not curing them of random illnesses."

The three friends looked at one another in defeat. Another groan caught their attention, causing them to wince. They could only hope it went away or perhaps the oddly elusive Myouga would appear. The flea servant had disappeared a few months ago and had not been seen since. The group had agreed it was definitely suspicous that the usual blood-sucking leech that tracked after them hadn't paid a visit by now. Shippou had suggested he had finally been eaten or squashed. For some reason they couldn't see the determined parasite being vanquished - he was simply to intent on annoying people to die.

Thanking Miroku again, Kagome turned and walked ot InuYasha. She stared down at her shaking friend and shook her head sadly, her blue eyes becoming soft with concern and regret. If only she had taken up Kaede's offer of training. If she had, perhaps she would have learnt something to help InuYasha's situation. But school had been too close to examinations, Naraku was getting stronger and there was no time to spare to go to the elderly priestess to learn how to be a proper priestess. Besides, her knowledge only had to consist of knowing how to treat injuries, shoot arrows, expand her powers and to trace the shikon no kakera. She sighed. Sitting down on a log near InuYasha's head, the young priestess looked down at the grimacing halfbreed.

"Are you feeling a bit better InuYasha? Do you need anything?" she asked gently, trying to repress the urge to run her hands through his thick silver hair to try and comfort him.

Inu Yasha nodded. "Keh... this is nothing damnit. I'm stronger stuff then you weak humans." he whispered, sweat breaking out on his forhead showing his strain.

Kagome leaned towards him, rubbing his back. "Inu Yasha don't try and act ike a hero. Please tell me do you need anything?"

She watched his fevered eyes glance at hers. They flashed red. She shivered. Miroku must be wrong about his demon energy. There was something not right about InuYasha's demon side at all! Watching him shake violently, the sweat pooling down his temples, his eyes fevered and almost insane from pain, she gasped when she saw another terrible pain hit him, his claws clutching at his chest trying to claw at his racing heart.

"InuYasha!" she yelped and was instantly beside him, kneeling, her blue eyes flashing.

"Damnit Kagome, leave me alone right now!" he snapped, almost biting her hand off.

Kagome gasped and turned away. She got back up swiftly and backed away, her face pale. Sango and Miroku hurried towards her. They eyed the now quiet halfbreed who continued to shake and growl on the ground beside the fire. He seemed to not be able to get warm. His teeth with chattering. They watched him in silence, unable to think of anything to say. They glanced at the pale Kagome, her eyes wide and fearful.

"What is is wrong Kagome-chan? Did something happen?" Sango asked worriedly.

Kagome shook her head. "N-nothing." She looked at her friends, a fake smile on her strained face. "Don't worry about me. Watch over Inu Yasha. I'm going to go get some herbs from the forest and try and make a drink that will sooth his distress."

The pair watched the priestess hurry away. She stopped at her bag and opened it, grabbing a few utensils to collect the precious herbs, and then walked into the dark forest, a quiver of arrows and her bow in hand, the odd light maker in her other. They didn't dare try to stop her. She was powerful enough to protect herself now anyways. They glanced at each other. What was happening to their friend that he would strike out so viciously at anyone... especially Kagome?

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Translations:
Houshi: Monk
Ki: Spirit
Miko: Priestess
Hanyou: Halfbreed
Taijya: Demon slayor (exterminator)