Restless Heart Syndrome

Full Summary: Itachi's secret love for Sasuke if finally revealed, though not before Itachi must do something tragic to free himself. Feeling obligated to make his brother, his hero, happy, Sasuke goes along with it, even though he's not sure of his own feelings. But Itachi's love turns out to be a relentless obsessions. Sasuke might give up the one thing he thought he'd always have.

Pairing: ItaSasu, Itachi and Sasuke

Warnings: Hard yaoi lemon, incest, slight language, disturbing scenes, ect....

Disclaimer: Naruto does not belong to me. The song, Restless Heart Syndrome, belongs to Green Day. No copyright infringement intended...

Chapter One

I've got a really bad disease
It's got me begging on my hands and knees
So take me to emergency
'Cause something seems to be missing

Itachi and Sasuke Uchiha; brothers, best friends, they were as close as they could get. Every minute of their lives were spent with each other, no matter where they where. It had gotten as far as sleeping together; Sasuke was 12 years old and had a perfectly good room of his own, but preferred to sleep in the same bed as his beloved older brother. Their parents saw this as just normal brotherly affection. They were actually glad that their sons got along so well, since siblings usually fought more than anything. Besides, Sasuke needed a figure like that to look up to. He was very antisocial at school, acting cold and distant to the other students, making it seem like he was the best in the world. But he was a completely different person at home with Itachi, a happy, content, energized young boy who's hero was his brother. It was astounding how different Sasuke was around Itachi, like he was two separate people. Their parents figured Sasuke must really love Itachi, and they thought that was a good thing. Sasuke was innocent, even cute, following Itachi around like a puppy.

But Itachi was a completely different story.

Itachi was 16 years old, four years old than Sasuke. For an "unruly teenager" he tolerated Sasuke through all his clinginess. He never argued with Sasuke, did everything he said, and always made sure Sasuke got what he wanted and was happy. Nobody thought that was selfish of Sasuke, really, it was a fine balance. Sasuke never asked his parents for material things that all the other students had, he just asked for Itachi, Itachi in general.

It turned out Itachi wanted something in return.

The signs started showing around June, and school had just gotten out for the summer. The summer was Sasuke's favorite time of the year, since he had all day to play with Itachi without the interruption of school and other people. They spent the days outside, exploring the vast forest behind their house, sitting on the huge hill watching the sunset, sometimes even staying out all night, just sleeping under the stars. It was a perfect time, and it seemed like nothing could possibly be wrong. But behind all the pretty scenery and joyful smiles, there was a want.

Behind Itachi's sheen of responsibly, maturity and bliss was a monster of lust and desire, a demon hidden in the shadows of his heart, waiting to lunge at its prey; Sasuke.

As Sasuke grew from a laughing, wobbling little boy to a growing, attractive teen, Itachi noticed just how wonderful Sasuke truly was. He was beautiful really; silky, midnight hair curtaining a flawless, moon pale face with wide watery eyes that resembled a pool in a winter evening, with that little sparkle. He had a nice body, to add to his beauty; slim and tall, but not unhealthily skinny, graced with plenty of well-built muscles. He was so graceful, practically dancing when he walked, his almost-white lily feet gliding over the floor like he was floating. When he smiled, it was like the light from heaven was showing itself in the form of a gorgeous Uchiha.

Itachi noticed all these things with acute detail, picking out every single unique look and feel of Sasuke's body and personality; Itachi knew him inside and out. He was the one who had brushed Sasuke's hair in the morning when he was too tired to do it himself, he was the one who rubbed Sasuke's sensitive wrists and fingers at night when they hurt from too much activity. Itachi was the only one who truly understood Sasuke's fragility, seeing that he needed to be taken extra care of, and given special attention. He felt as if one wrong touch and Sasuke would simply shatter in a million shimmering pieces.

These feelings that Itachi sheltered for Sasuke went unnoticed for most of his life, since Itachi hid it so well. Sasuke never noticed that Itachi's delicate and lovely caresses and touches had decreased as he got older, because he had too much of a delightful life to care if a few backrubs were missing. Itachi knew Sasuke's obliviousness was better for both of them; Sasuke didn't need the burden of knowing Itachi loved him so dearly in a way that was much more than brotherly.

Their mother and father began to suspect that summer that Itachi was harboring secret emotions nobody knew about. They saw Itachi staring at Sasuke when they went swimming in the lake in the middle of a copse of full trees. They'd strip down to their underwear and jump in the freezing water, though both of them had bathing suits. They just never wore them.

Mikoto and Fugaku would watch from the window, Itachi ogling a naked Sasuke like a piece of meat. They spent more time out there than they did in previous summers, and they began to worry what was happening in the dense forest when the brothers were alone and unsupervised by their overprotective parents.

They thought it disgusting and immoral, that a brother would feel this way for his sibling, but they couldn't just blurt out the fact they knew Itachi's carefully concealed secret.

Maybe it will solve itself, they thought. Maybe it's just a phase Itachi's going through, and he'll get over it soon. So they ignored it.

Which it just want Itachi wanted.

It was late evening on a beautiful day, cherry blossoms floating in the clear sky and landing on Sasuke's leaf-clad hair. They had spend the day creating new paths through the forest, a child's game, a game Itachi didn't mind in the least. Sasuke loved it when Itachi would hold back a tense branch for him, so it wouldn't scratch him when he walked by. He loved how Itachi would leap across a deep ditch filled with thorny brambles and then catch Sasuke when he tried to jump as well. Itachi was his everything, his reason, and he wouldn't give it up for the world.

They returned from their adventure with dirt on their shins and twigs in their hair, flopping down on the waving grassy hill. They sat there every night to watch the sun go down, no matter what the weather was. Now, the lake glistened under the moonlight, showing Sasuke's smiling reflection in the black water.

Itachi sat with his knees spread, Sasuke sitting between them with his back to his older brother. As the sun sunk behind the busy canopies of trees, Itachi picked the forest floor off Sasuke's hair, smoothing it down, just touching it. He brushed dirt and leaves from his clothes, cleaning him up enough so their parents wouldn't be too upset when their carpet was mud-treaded. Besides, they would bathe together later, anyways…

"Isn't it pretty, nii-san?" Sasuke said dreamily, leaning his head against Itachi's chest and gazing up into the orange and pink hues of the sunset.

"Always is, otouto," Itachi replied. Sasuke's voice was cute and high, but not squeaky like a girl's. It wasn't too deep, either, rough like Itachi's voice. It was almost like a sultry purr, waves of sand dribbling down a smooth stone, or paper thin pages of a book turning under nimble fingers.

"I'm sleepy…" Sasuke yawned to prove it, his eyes drooping as Itachi soothingly rubbed his sharp shoulder blades.

"We should get home soon, then, Sasuke." Sasuke's name on his lips was like honey sticking to his tongue; it tasted so good.

"Yeah…" Sasuke agreed, but made no move to get up. He would be perfectly content with sleeping in Itachi's lap outside that night, but their parents would have none of that. Strangely, they had recently forbidden them from staying out past sunset together. They said they were just worried about the dangers of the forest at night, but they had done it plenty of times before when Sasuke was even younger.

Oh well, Sasuke didn't care. Watching the night from inside with Itachi was just as good.

Itachi sighed and scooped up Sasuke into his arms, easily lifting him up and carrying him up the hill and back to their spacious house. They had no neighbors or any sign of civilization for miles. Both Sasuke and Itachi had to drive about twenty minutes to their bus stop. It was nice, the solitude, being the only humans in the area. Everything stayed beautiful and untouched by acid hands, preserved for the rightful owners of the land.

Mikoto and Fugaku were dutifully waiting for their sons in the dimmed living room, smiling slightly at the dozing Sasuke in Itachi's arms. Itachi said they'd wash later, Sasuke was already half asleep. They returned to Itachi's room, the one they shared. Sasuke couldn't remember the last time he slept in his own bedroom. It was so lonely in there; he got the room with the biggest window, facing the darkest tangles of tall pines, where the wolves howled in the middle of the night and woke Sasuke up from his good dreams. The eerie light of the moon illuminated Sasuke's walls and floor with a creepy aura, as if something was about to sneak up through the large window.

Itachi's room, on the other hand, was smaller and cozier, Itachi's scent on every clean surface. There was five windows, all pretty tiny and scattered over the walls. Itachi's bed easily fit both of them with room to spare.

Itachi set Sasuke on the edge of his bed and gently shook his shoulders to wake him.

"Hmm…?"

"Get undressed, otouto, it's time for bed." Sasuke obeyed sleepily, slipping out of his dirty clothes and tossing them on the floor, where Itachi automatically pushed them into the laundry basket in the corner. Itachi watched with wide eyes as Sasuke slipped on one of his shirts, which was naturally way too big for him. It was the shirt he wore every night, the shirt Itachi kept on the post of his bed at all time, that little thing they shared.

Sasuke crawled under the covers and closed his eyes, clumsily beckoning Itachi over to him. Itachi didn't bother to change, knowing Sasuke wouldn't care. He just bounded into bed and gathered Sasuke against him, their bodies melding together. Itachi's warmth lulled Sasuke into a deep sleep, his even breathing making Itachi's chest rise and fall in rhythm with him. His breath tickled Itachi's neck, and Itachi absentmindedly stroked Sasuke's hair, which had managed to remain velvety soft through their day.

Another perfect end to a perfect day.

But also another huge boulder that crushed Itachi's self control.

The next morning, Sasuke awoke to Itachi's warm, inviting eyes. He realized that, sometime during the night, he had rolled over onto Itachi's chest, his legs sprawled out on either side of Itachi's body. He smiled brightly and Itachi did what he did every morning; he kissed Sasuke's forehead then both his cheeks while Sasuke laughed at the tickles tingling through his face.

They rolled out of bed together and Sasuke dug around in Itachi's closet for his own clothes. It was like he had permanently moved into his brother's room, and that was just fine for both of them.

As Sasuke decided to wear another one of Itachi's too big shirts, Itachi came up behind him and petted his head, clawing out more sticks and grass. Sasuke wore Itachi's clothes because it made him feel connected with him in a way that being blood related could not provide for him. Also, Itachi's scent was intoxicating, and if he was at school by himself or if Itachi was ill, he'd remember that Itachi's smell was always with him, it comforted him. Well, whenever Itachi was sick, the only thing that could comfort him was Itachi's recovery…but his clothes helped too.

"Hold one minute, ototou," Itachi dashed off to "their" bathroom and grabbed the brush off the sink. It felt light and worn in his hand, from many years of use. Sasuke once used it as a missile to dent the wall with when someone teased him at school when he was about 7.

He returned to the room and found Sasuke sitting cross-legged on the bed, Itachi's shirt stretched over his knees as he waited for his brother to come back.

"Nii-san!" Sasuke called in the most cutest of voices, sounding like a needy kitten. It was apparent that he acted much younger than his age, but nobody worried about it; as long as he was happy, it didn't really matter how dependent he was on Itachi. One day, they all knew, Sasuke would need to grow up and learn how to live on his own, because one day, Itachi won't be there for him and he would have to fend for himself.

But for now, Sasuke could be reliant on Itachi all he wanted…

"Sit still and let me see if I can get these knots out," Itachi said, joining Sasuke on the bed, sitting on his knees behind his younger brother.

"'Kay!" Sasuke relaxed and let Itachi run the brush through his matted hair. He dozed slightly, the calming motions of Itachi's wrist through the brush making Sasuke feel a bit hazy. Itachi was an expert in everything to him. No matter what problem he had, Itachi could solve it and make him feel immensely better. In his mind, there was nothing Itachi couldn't do.

"What should we do today?" Sasuke asked, leaning backwards closer to Itachi, so their bodies were touching. Itachi could think of a million things to do with his beloved, stunning brother, but they were certainly dirty things that would cause Sasuke to think less of him. More than anything, he wanted Sasuke, but there was a little part of him that knew that would be impossible. Sasuke was so naïve, so cute, so clueless, the thought of him being Itachi's was almost too much to bear. But he had to make do with the bond they had now, and hope for it to progress when they got older.

He didn't care in the least that they were brothers, that didn't matter as long as they were in love. Sasuke didn't quite love him yet, well, not in the way Itachi wanted. He would have to wait until Sasuke was 18 and could move out of the house with him, or else their parents would explode. They were very old-fashioned, firm on the idea of no sex before marriage. What they would do if they found out Itachi was gay for his little brother…

He shook his head to clear his thoughts, trying to focus on Sasuke lifting himself up onto Itachi's lap to get even closer, obviously enjoying the brushing of his glossy, almost feathery hair. He was born with naturally feminine looks, but it worked in his favor, making him incredibly gorgeous. His hair was a bit too long for his parents' liking, but Itachi just loved to comb his fingers through it. His lips were full but not overpowering the rest of his face, and in a constant shade of adorable pink. Even his eyelashes were abnormally long. He was just…perfect.

"How about we go swimming?" Itachi suggested. "It's a pretty hot day."

"Okay!" Sasuke turned his eyes left towards the window, brilliant rays of light shining through the glass. It was, indeed, a rather sweltering morning, and spending it in the cool lake in the shade of the trees sounded fantastic. The whole forest belonged to them and only them; it was their place to be together, escape reality and pretend they were the only people in the world.

After a few more minutes of silence, Itachi ceased brushing Sasuke's smoothed out locks and took his hand to help him hop off the tall bed; Sasuke was also a bit short for his age…

Mikoto and Fugaku were already up making breakfast, greeting Itachi and Sasuke as they came into the kitchen. They didn't question the fact that they had woken up so late, or that Itachi was wearing the same clothes from yesterday. They had also learned to accept Sasuke's obsession with wearing Itachi's clothes. It was just something else they might have to consider.

Sasuke sat at the kitchen table while Itachi went to join his parents to help prepare breakfast. After all, he was pretty much the only one who knew exactly what Sasuke liked to eat.

He gave the younger Uchiha a glass of milk, and while he sipped it, Itachi watched with fascination. He thought of so many things they could be doing instead…

His parents stopped bustling around the kitchen and stared at Itachi coldly, the look on his face screaming what he was really thinking. Itachi could fanaticize all he wanted, but he would never try anything too drastic…

Right?

The same thing Sasuke had for breakfast every morning was a piece of toast and two fried eggs; no matter what day it was. It was always the same thing.

But apparently, Itachi was the only one who could do it right.

Itachi set the plate in front of Sasuke, who promptly thanked him with a kiss to his cheek. Mikoto smiled nervously but Fugaku just growled to himself, refusing to look up at his two sons.

The family ate in silence, the adults thoughtfully staring off into space. Itachi took this rare moment of silence to clasp Sasuke's hand under the table. Sasuke squeezed back appreciatively, smiling under his breath. He didn't know how much his own parents disliked their close relationship; they didn't want to say anything about it in front of him, afraid of upsetting him. Sasuke was too young, temperamental and influential, and he was bound to be sad if they suddenly told him what Itachi's true intentions were.

But they didn't know for sure! They couldn't just kick out their eldest son because of something they merely suspect was going on. They would wait and watch.

A/N: I'm actually kind of happy with it. Happy birthday Itachi! This first chapter's for you! XD I've been in love with ItaSasu for a while, so I thought, what the hell? NEW STORY! Just to let you all know I'm still alive! I was feeling...detail-ish when I wrote this. Sorry for the long chapter...hopefully future chapters won't be so long...
Restless Heart Syndrome: Green Day
Since I love this song, the whole story is sort of going to be based around it. Hopefully I won't have too many chapters that I use up all the lyrics XD LOL That would suck. But I don't know think so, or I'll just use lyrics again. I don't know. Stay with me! Thanks for reading!

Hurm,

The Cupcake Monster