Invade My Heart

By: Hitokiri Musei

Rated: M

Summary: Kyuubi takes control, and Naruto does something that could possibly break the only person he's ever loved… NaruSasu

Warnings: THIS STORY DOES INCLUDE RAPE! IF YOU ARE OFFENDED BY THAT, PLEASE DO NOT READ THAT PART! It's not particularly graphic, but be aware that it IS there. Other than that, basic torture, injury, and other such things. And yaoi.

Inspired by a doushinji that I found on the web called Sasuke/3. Most of the first little bit is almost exactly what happens there, but in the second chapter I begin making it up on my own.

I do not own Naruto or the doushinji Sasuke/3.

Chapter 1

Sasuke could not help but feel that something this night was wrong. He frowned, rubbing a hand through his bangs as he sat up in bed, looking out the window and into the dark night. Something just felt off, and it was worrying him, and yet, at the same time, making him slightly afraid.

Something big was going to happen this night.

The Uchiha threw his blanket off of my legs, sighing as he pushed himself to his feet. He knew that he would not be getting any sleep for the rest of the night, so he might as well get up and move. He couldn't just lie idly in bed; his body wouldn't let him remain still that long.

After pulling on his shirt he opened his door, moving quietly into the cool air. It was steadily getting colder, what, with winter nearly here, and he reached back inside his room to grab his cloak before continuing through the house and towards the front door.

The cold air hit him rather harshly, he shivered faintly before his body adjusted to it and he wrapped himself in his darkly-colored cloak. Slipping into his shoes, he moved through the Uchiha complex and towards the front gate, feeling the need for a walk through the city. Perhaps that would help to calm his nerves so he could get some sleep before the sun came up.

The night was calm and cool, helping to settle his nerves and ease his body into a better comfort zone. He breathed deep, closing his eyes for a moment before opening them and moving onward through the night. He went through the city quickly and quietly, heading for his favorite place on nights like these.

The field.

Sasuke smiled as he thought back. It wasn't really anything special, this field. It was merely a place that he had used to come to as a child, and now as a 15 year old he still returned there to think and wander. That place just helped calm his thoughts. It made him feel lighter and better, like everything was going to work out, no matter what kind of problem there might be.

He loved it there.

The Uchiha smiled to himself as he stepped onto the familiar grass, the feeling growing as he went further onto the large open space. The tall grass and dying flowers waved around his waist, the field's aura seeping into him. It was as though the place had a chakra of its own, a healing, warm chakra.

Sasuke stopped when he had reached the near center, the feeling of warm and happiness nearly overflowing in his heart. He felt at peace, content, confident, and safe. He allowed his mind to wander, not really paying attention to his surroundings as he drew his chakra up, pulling himself into a meditative state as he settled cross-legged on the soft, cold grass.

Pulling his cloak tightly around himself to keep warm, he grew still in the cold night air. Time passed without his knowing, his body resting as he rested his mind. His hair whipped across his pale face, the dark strands dancing over his moon-pale skin.

Sasuke's eyes snapped open. Someone was coming, and quickly. Someone powerful. Sasuke shivered as the chakra burned against his own, the power crackling and swirling around him in the semblance of fire. Sasuke felt a trickle of fear slither through him, and he steadied himself, his body automatically readying for combat.

Thudding footfalls sounded somewhere; he could not pinpoint the location as the wind carried the sound to several different sides. He tried desperately to locate the burning chakra, but it was welling around him, drowning him in heat and rendering his chakra sense useless. The footsteps were too rapid to be two feet; it was something moving on all fours. An animal no doubt.

Sasuke suddenly gasped, his eyes widened as he whirled. He barely had a chance to see a figure leaping through the air, and then he was hit hard, sending him backwards into the grass, landing harshly on his back. The movement knocked the wind out of him, keeping him gasping for a moment as the creature placed clawed hands against his forehead and throat, pinning him to the ground.

Sasuke cracked his eyes open to peer up at his capturer, trying to figure out who it was. He gasped as he realized.

"N-Naruto?.!"

The blond was naked, his body rugged, dirty from running through the village on all fours. His hands were sharply tipped; the whiskers on his face more defined than Sasuke had ever seen them. His blond hair was wild, in complete disarray around him face. But the worst were his eyes.

Naruto's normally soft, playful blue eyes were a fiery red; the pupils slit and thinned out to mere lines. They were angry eyes, eyes full of lust and want and dominance.

The blond growled throatily, baring his teeth, his fangs. Sasuke's eyes widened and he turned to try and get away, out from under the blond's pinning touch, but Naruto raked a clawed hand over his back, the claws tearing away his cloak and shirt, ripping them both easily to shreds. Sasuke shivered and yelped faintly as the stark cold air bit into his skin, struggling again as Naruto ripped at his shirt, tearing it fully from his body.

Sasuke cried out as Naruto pushed him down again, pinning him to the ground this time with his whole body, pressing down harshly against the Uchiha's thin form. Sasuke cried out at the pressure, trying to push Naruto away by his shoulders. But the blond was too strong for him.

Sasuke was terrified. He had never been so frightened in his entire life. Naruto wasn't in his right mind, it looked as though the Kyuubi had taken complete control, and the blond had no idea what he was about to do. Sasuke shivered once more.

He… He's going to rape me…

He knew. And he was terrified.

Sasuke looked to the side, his eyes widening slightly as he saw his weapons pouch, knocked off when Naruto had hit him, lying near him. If he reached he could get a kunai, some form of protection…

The Uchiha cried out as sharp fangs bit into his neck, his body stiffening as he tried to squirm away again as hot lips raked over his throat and jaw. He reached, stretched… and felt relief flow through him as the cool metal of a kunai touched his searching fingers. He wrapped a hand around the hilt, pulling it out of the pouch and raising it high into the air above Naruto's back as the blond ripped and pulled at his pants.

He froze. His arm shook, trying to pull down, but he just couldn't do it. Every time he went to do it, to drive the kunai into Naruto's back, he could see the blond's face, his smile, his goofy laugh, and the way that he lit up when Sasuke talked to him or invited him somewhere.

Sasuke winced as teeth touched his skin again, and then shakily lowered his weapon.

I…can't do it…

The kunai rolled from his limp fingers, rolling away from him to rest silently on the grass.

Sasuke cried out as claws raked down his chest and side, pulling along his body to rip his pants from his legs, throwing them away. By now Sasuke was numb to the cold, more intense now that he was without his clothes. The Uchiha yelped as Naruto's claws dug into his shoulders as the blond forcibly pulled him off the ground, pushing him onto his hands and knees on the grass. Sasuke panted, trembling, blood dripping from his wounds.

He had no more strength to fight back. He just couldn't do it. He knew that in order to stop Naruto while he was in this state he would have to kill him. And Sasuke just couldn't bring himself to do that, no matter the circumstances.

The world went white. Unimaginable pain roared up from the base of his spine, escaping his mouth in the form of a piercing scream. Tears escaped from his dark eyes, running freely down his cheeks and dripping from his chin. Screams poured from his mouth as Naruto pushed in and out of him dry.

A shriek escaped the Uchiha as he felt something tear, and then the warmth of blood trickled down his thighs as Naruto's thrusting forced him to his elbows, his head tucked down and screams and pleas for Naruto to stop echoing from Sasuke's mouth.

Sasuke could hear Naruto's growls and grunts of pleasure, and as the blond got closer to release he placed a hand at the back of Sasuke's head, forcing him onto the grass, pressing his face against the cold ground.

Sasuke panted for breath, trying to breathe around the horrible pain flowing through his body, his mind straining to keep up with the torture his body was going through. His blood flowed freely, his body screaming at him to pass out, but his mind keeping him awake, forcing him to keep experiencing this horror.

There was a hot rush inside and then Naruto pulled out, flipping him onto his back and then thrusting back in after a moments wait. Another scream tore from Sasuke's lips, his already fragile mind cracking even more beneath the pressure on him.

Please… stop!

The last thing he heard was Naruto's animalistic howl of triumph, and then reality fled.

Kakashi gasped, raising his head as he heard the sound thunder through the night. This wasn't something you heard every day, the howl of an animal, of a creature that no one ever wanted to encounter.

And yet, the sense that something was wrong kept nagging at the back of his mind even as he tried to shove the sound from his mind and continue on his way. Sighing, the jounin turned, heading to where the sound had originated.

He moved quickly, wanting to investigate this and then get home to get some sleep. He came to a field, frowning as he spotted the trampled down grasses somewhere in the middle. He walked quickly through the grass, and then blinked.

There was someone laying there… a small figure sprawled across the grass. He got a little closer, and then was able to make out the curve of a raised knee. He took another step, and then his heart leapt into his throat, a gasp leaving him.

Sasuke lay there, his body splayed almost artistically over the grass, blood staining the ground all around him, though the darkest and thickest patch was between his spread legs. His dark hair was spread around his head, displayed over the grass. There was a slight blue tinge to the Uchiha's skin; he had been out in the cold for some time. There was a multitude of wounds over his pale body, what looked like claw marks and bites.

Kakashi knelt by the Uchiha's head, and then gasped faintly as he saw his eyes. Sasuke's eyes were open, but completely blank, void of any sort of life. The normally vibrant black was dull and lifeless, as flat as a doll's glass eyes. Kakashi reached down with two fingers, sighing in relief as he found a weak, but steady pulse at Sasuke's throat.

The jounin lifted Sasuke, cradling his rather small body to his chest. He found the remains of the Uchiha's dark cloak, wrapping it around Sasuke and proceeding towards the Hokage tower, where he knew he would find Tsunade.

What happened to you, Sasuke?

What's happened?

Naruto blinked in shock, sitting in his bed. He didn't remember getting out of bed, and yet he was dirty, as though he had been running around.

And he was nearly covered in blood.

The blond shivered, and then thought to take a sniff of the life liquid drenching him, knowing that it would give him an idea of whose blood it was, considering the Kyuubi gave him a higher sense of smell. What he found nearly gave him a heart attack on the spot.

S-Sasuke?.!