Disclaimer: I don't own Pokemon.

AN: Haven't found an Advanceshipping fic where they are brother and sister, so I thought I might as well write it up. Maybe it might be something you've never read, but it might just offer something different to the table (at least for the advanceshipping fandom. Frankly, there's a lot of brother/sister fics, incest in general fics out there). None like this I hope. :)

WARNING: M rating because of adulterated themes and incest- it's not explicit or too graphic yet, but later on it just might, so a bit of a warning now. If that's not your cup of tea, don't read. I WARNED YOU!

Ages: Ash-18 May-17 Max-10

"Somewhere is my seemingly broken and fragile heart,

Covered and hidden by words under the pretense of being strong"

Chapter 1

A pillow laid gently over Ash's head as he pressed it down and yelled in anguish. He was absolutely exhausted. He was so tired, yet he could not fall asleep. His messy hair was unruly, and he felt beads of sweat trickle down his forehead to his cheek as he threw the pillow off the bed and continued to toss and turn. He groaned, his brain not allowing him to sleep. His chest constricted, and he felt so isolated in his room, in his clothes. He disliked the feeling tremendously. He ripped off his clothes to only be in his boxers, but it still wasn't enough. He was feeling this way earlier, and his mother guessed he must have been running a fever or something, but he knew that wasn't it. His eyes refused to close, for he couldn't stop reminding himself of their anniversary. Ash's mind was boggled by thoughts of the past. It may have been two weeks ago, but the thought of his parents never left his mind. The thoughts of what his siblings went through after their death never left. Two weeks ago was the anniversary of their death, and he still couldn't stop the nightmares from coming. They usually continued for three days afterwards every year. Now it had been two weeks and he still couldn't get them out of his mind.

Eight years ago, their parents had died in a horrible car accident that caused instant death. He had to be the adult for his siblings back then at the age of ten. May had barely turned nine, while Max was merely two years of age. He always made sure he looked after them when they were forced to live in the foster home. They always stuck together, and stopped from really talking to any of the other kids there. They just played together like a little triad. They all had each others back and watched out for the other. Ash had made sure he had taken care of his siblings no matter what the cost. He protected them. They were all so attached, Ash and May in particularly since Max was too young to understand what had happened.

It was only a few months later that foster parents took them into their home. They were lucky, the owner of the orphanage had said, since not many got picked so quickly. In a way, it made Ash feel guilty since they had just got there while others had been there since they were babies. There was nothing he could do about it however, so they went off with their new parents. That was the last time they really ever played or talked to others their own age (except their odd cousins that always seemed to feel superior to them because their blood was apparently better).

Ash or May never went to public school, for they were home schooled. Their new parents didn't want them to get 'tainted' by public schooling, so they were home schooled since their new mother used to be a teacher. They stayed cooped up in their house most of their days, not able to meet many children their own age.

Ash tossed and turned, his eyes finally closing with nothing but flashbacks of his past.

May had cried, holding her little brother Max as her eyes closed. Ash made sure not to cry; he refused. Ash frowned hearing her muffled cries. He turned to her, seeing her eyes puffy and scarlet. Her rosy cheeks were tear-struck as water continued to roll down her plumped cheeks. Her hands were occupied, so he brushed her tears away for her. She stared at her older brother, wondering why he wasn't crying. Ash took Max out of her hands so her little arms wouldn't get tired.

"Aren't you sad brother?" May sniffled as she wiped away tears. Ash tried his best to smile. He would not cry now. He would not cry when he needed to be strong. He was the older brother, and he wouldn't cry in front of them. He was strong. He would be their iota of hope; he would help them genuinely smile again, even when he himself couldn't hold a true one.

"Everything is going to be alright. We'll get through this no matter what. We still have each other!" he told her as he gave her the biggest smile he could muster. To May's unknowing eyes, it seemed authentic.

"But… what's going to happen to us now? What are we going to do without mama and papa?" she sobbed as she wiped her tears on her shoulders.

"Don't worry May. I'll protect us! I'm your big brother, so I won't let anything bad happen to you or Max!" Ash said as he smiled towards her. May nodded as Ash enveloped them into a hug. He could never let them see him shed a single tear. He was strong, and he would only show his strength.

May smiled, happy to know her brother was going to fix everything. She believed in him, like she always did. She trusted him with her life, and now was no different. He would protect them.

Still, she wished she could do something, anything. He was always protecting her and supporting her, she wanted to be the one giving him the happiness he always seemed to give to her. It was only then that she vowed to do the same. She would be strong for her older brother, who had done so much for her already. She wanted to repay him; she wanted him to know she would become strong for them both as well. She smiled, continuing to hug him tighter with Max in the middle.

His weakness, his fears, his everything was shoved to the back of his mind as he smiled at the thought of the sobs slowly halting as time passed.

"Ash! Wake up-" He felt a smack of a firm pillow hit his head.

"H-huh?" His eyes widened at the sudden wake up call.

"Finally you're awake! Mom made breakfast!" Max called. Ash was on alert now. He licked his lips, tossing his blanket to the other side of the bed and darting out of the door in nothing but boxers. "Wait for me!" Max helplessly shouted at the boy on a mission.

"Ash Ketchum! You know better than to run down in your boxer's young man." His foster mother always reprimanded him every time he came down without getting ready. He always forgot to change before heading downstairs. She placed her hands on her hips as she glared at him. Ash laughed, apologizing. Her attention turned to the ten year old. "And Max, didn't I tell you to wake your sister up too?"

"Sorry mom, but Ash was being too impatient, I had to get down before he ate everything… again!" Max exclaimed, flailing his arms in the air. Their mother sighed, exasperated.

"Here, I'll go wake her up." Ash volunteered as he decided he should put some clothes on anyways.

"Wait, are you feeling better from before?" his foster mother asked in concern as she walked up to him and placed her hands over his forehead. Ash clasped his hands with hers before setting it down gently.

"Yup, I'm good as new!" Ash stretched and punched the air just to prove it to her. She nodded in understanding, so Ash walked up stairs. When he was at May's door, he noticed it was slightly ajar. He looked in at the darkened room, deciding to head in and close the door behind him. He took a moment to wish there had been locks on the door. It would have sure helped. However, he soon forgot the idea entirely and walked towards the sleeping girl.

He gently shook her shoulder, whispering her name in her ear. She shivered at his breath hitting it. She had turned in her sleep, holding onto his arm. His eyes widened, looking at the beautiful girl before him. Her supple skin was just beautiful while her russet hair lazily grazed her skin in a messy, yet magnificent places on her cheek, each strand looking like part of a masterpiece. He bent down, his face just close enough to almost touch her lips. She was so beautiful; he didn't want to wake her. He could watch her all day, if he was able to.

"May," he whispered into her ear once more.

"Ash…" she trailed off, turning in her sleep. He was a bit surprised that she'd say his name in her dreams. His fingers grazed the juncture between her neck and clavicle, running them over her shoulders. His lips barely caressed hers as they moved down to the crook of her neck. She had moaned, holding onto his arm tighter. Her eyes momentarily opened, fluttering before they opened to meet auburn eyes staring right at her. She blushed, her face mere centimeters from his.

"Ash, I-"she was interrupted by his lips pressing against hers in need. It felt incredible. Her tense body from the shock soon relaxed when she realized what was happening. Ash smirked; he was happy things had gotten to this point. He was happy things had happened the way they did. He loved her so much. He'd do anything in his power to make her smile, to protect her and keep her safe.

His kiss became more forceful as he demanded entrance into her wet mouth, exploring everywhere while her timid tongue tried to fend him off with her own. He attacked her as she moaned in absolute rapture. His fingers moved to her abdomen, caressing her curves and moving north, just barely touching her breast before she pulled away, staring straight into his eyes once more. They were panting, their chest pounding, their bodies pressed against each other... his eyes showed so much need and desire. She wasn't sure what to do anymore. He stared into her with so much love and adoration that he wasn't sure of what to do with her or himself. All he could think about was how all this started, so thankful.

This had all started two weeks ago. Ash was getting yelled at again by his foster mother. They were each arguing on what he was going to do with his life. He was already eighteen, but he hadn't been working or thinking of going to college- he never was too good at learning the material. He still wasn't doing anything with his life, and his foster mother was furious at the man. He really couldn't blame her either. He was eighteen and he still hadn't had a job or a girlfriend. Although, to be fair, he hadn't been out since they lived with their foster parents. They were beyond protective, and they felt sorry for them, so they did the right thing and adopted all three of them, not having the heart to separate the three of them. It was all or nothing anyways. It was weird, adapting to such a new life, a real big changer. All three of them were home schooled, so not only did they not get the chance to meet other kids their own age to socialize more, but they also never got the chance to actually learn how to get a job. But it wasn't like he was trying or anything. He would have guessed he was just getting lazy over the past years since they were well taken care of.

In reality, what was between them may have started two weeks ago, but his feelings had started a long while ago. For the past few years, he had been getting a lot of different feelings his parents never bothered to talk about. It was strange. He never felt this way before. Luckily, their parents actually gave them internet access, so he would usually just hop on and look through very… provocative sites. He was experiencing different emotions he had never felt before. Different things started to happen.

He started to look at his little sister differently for one. The age difference was only about a year, so she was maturing along with him, her faster than Ash ever imagined. He started noticing her body, and he began feeling different things for her. Things he shouldn't be feeling for his younger sister. He had sensations that left him tingly, and he got sudden urges during times he shouldn't.

At first it scared him. He hated the fact that he would think of his sister in such a light he'd think of the porn stars on the internet, but… his mind was reeling just at the very thought at the moment. At first he tried not to think about it, to ignore it, to keep it away from the forefront of his mind. However, his mind got bombarded with images of her. It had been getting more frequent the past few months. He felt it might even be a chronic disorder.

The more he saw her, watched her, the more he couldn't get May out of his mind. In the end, he kept these feelings hidden throughout the years and only thought of her in the dark depths of his room when no one was around and everyone else was sleeping soundly and unaware.

There was even an instance he couldn't control himself just at the sight. He had previously ran into her while she was in the bathroom taking a shower. He couldn't believe it when he ran towards the bathroom, and she was about to come out. The two had bumped into each other, and he got a view of her in only a towel. He could just about see the crest that separated her two mounds that were covered by the towel. He looked down, completely enthralled by her curves, the droplets trickling down her supple skin, her shapely body, her wet hair mounted on her rosy cheeks...

"S-sorry," she mumbled as she got up and ran to her room, slamming the door. He only stared at her door. He looked down, knowing he couldn't hide what was stirring him inside at the sight of her long, slender legs that were absolutely perfection- she was perfection. He knew he got a glimpse of her beautiful cheeks, wet and glossed after her wash. Image after image pounded through, ready to break his skull in half. It was so erotic, so raunchy; he couldn't hide himself any longer. He knew this feeling too well, and he knew what problems it would bring if anyone caught him in such a state. He ran to his room, not bothering to lock his door as the only thing he had on his mind was her, and releasing this pressure building up inside, churning his insides into mush.

The occasion two weeks ago was just one of those nights where he would think of her. These feelings would usually erect from the pit of his stomach and stirred him until he finally relinquished the sensation. He couldn't help but feel good by that feeling. It felt so good, relieving that pressure he held whenever he thought of her. He felt dirty and ashamed for doing such lewd activities, thinking of so many provocative situations he could have with her- all the things they could do together- when he was supposed to be both his little brother and sister's role model. He was the oldest after all, and he made an oath to take care of them. How would he look if they saw him in this predicament? How would it look if they saw him like this, doing this, right this very second? He always hid himself from the world, and more importantly, from them. He had to hide behind a smile, he had to hide behind his strong demeanor. He was a mere child, but he had to grow up far sooner than he should have. He had to deal with everything by himself. He made sure he got their burdens and his, taking them all on his own. What would they think if he saw him so vulnerable, so in need… so weak?

He groaned, closing his eyes, trying to get everything out of his mind, trying to concentrate on the task at hand. He needed to finish first. However, his brain wouldn't allow it unfortunately.

His breath hitched, a disturbing thought rushing through him. If his little sister walked in, if she saw him... it would only turn him on more, he realized. He moaned at the very thought, wondering why he couldn't? He was the oldest, it was perfectly natural… he was a man now, and he could do what he damn well pleased. He did not hesitate when thinking of his little sister anymore. Thoughts poured over him, one after another. His groans became a crescendo of moans as he felt himself stirring at the very thought. He didn't care. He didn't care of anything but the now, the present, his release. He didn't care when he heard the door creak open, when a small, exasperated, maybe even repulsed gasp made its way to his ears.

From the corner of his eye, he saw his dream, his very thoughts come true. She was watching him with bulging eyes. Curiosity was etched in the glint of her azure orbs as she watched, her teeth biting her bottom lip as she grabbed onto the hinges of the door frame.

He couldn't care. He just saw her watching, and deep down, he wanted her to watch. He didn't say anything, he didn't stop. He wondered if she'd turn away or say what a pervert he was, but she didn't. She just continued to watch like a child fascinated with a butterfly or a kaleidoscope. He couldn't help but smirk, this being too good to be true. Maybe his brain was over thinking, but he felt as if she was enjoying it, that she was turned on herself. The very thought made him hot. He could only imagine what she would be doing to herself, what she could be doing, what he could be doing to her.

His grip seemed unbearable, yet his grunts increased. His respirations were coming out faster and faster. He gritted his teeth as he felt like melting away right their in absolute rapture.

It was too much for him. Euphoria was pouring out of him as he grunted from pure ecstasy. He couldn't help but see her reaction as spurts of cum rushed out. He stared at her so covert through the corner of his eye, and he loved the way she was entranced with those bursting eyes of hers. The way she stared in complete focus and concentration, as if seeing something for the very first time… she was so innocent.

He guessed it was the first time she had ever seen something as lascivious as that. He panted, looking at his glistened hand as he continued to think of her in satisfaction. He finally decided to look over to tell her that he saw her, when his door frame was empty. At first he had wondered if it was just his imagination, when he heard the door next to him slam shut. He wondered how she reacted to all of it even more. He wondered if she'd be okay.

He frowned, realizing exactly what he just did. That moment, no matter how great it was to him, probably traumatized her. His little sister, his cute, innocent little sister, saw another side of him that night. She saw the disturbed, warped boy that wanted nothing more than affection- the boy he tried to hide from them.

After that moment of lust- after that idiotic moment, he felt nothing but emptiness. She had left in disgust he was sure.

She would look at him differently now.

He frowned, wishing he could turn back time, but he really wished it was all a lie. Yet, he knew it was all pretense. His heart told a different story.

He truly wished she was still there, with the same chaste expression on her face. He just wanted things to go farther than they had. He wanted her to close the distance and say the things he wished she would, do the things he wished she would.

He tugged his hair, not believing what he was thinking. He couldn't keep thinking this way. It was unhealthy, and it was morally wrong and sick. He was sick.

He wondered how long he could keep this charade, keep this to himself. It was all boiling up from the moment he hid behind his smile and words.

His tough act was crumbling, he was crumbling down, and he wasn't sure why he was feeling so relieved by it.

He was dropping to the bottom, to the epitome of low.

It invigorated, yet scared him how much he wanted to take her down with him, but only if she wanted the same.

His desires, his feelings- it all boiled down to if she was willing. He hoped, boy did he hope.

He didn't want to lose her. He wanted her by his side forever. He wanted to keep her, hold her, tell her it was going to be alright like he used to.

Afterwards, he didn't cry at the prospect of losing her. He was too used to not crying. He'd keep it inside like he usually did. He sighed; sleep was not coming to him as he thought of events that shouldn't have transpired. His head was jumbled, and he didn't know how to unravel this puzzle that hardly ever revealed itself easily. He kept on thinking of his lustful act, how sick, wrong, and disturbing it was, but he couldn't help it. He couldn't deny he loved every minute of it. His jaw clenched, thinking it over once again now that his head was clear.

"I should apologize to her. I should have stopped then, I should have done something than being an idiot. I'm such an idiot." He sighed in irritation, rolling over and trying to let sleep take over him for the night.

As he already knew, sleep never came.

AN: Not as graphic as what I could have made it, but meh. :/ I'm surprised that it actually sounds a bit dark towards the end. This story won't be too long. Maybe about nine chapters tops.

Hope you enjoyed! Reviews will be appreciated. I don't know if it's good or not. Give me some ways my writing can improve… share your thoughts, and thanks for reading and review!