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Rated M for Mature

Clabastian and Clace warning may contain abuse, Rape, curse words and will have sex scenes!I do not own these characters only the plot...this is my first fanfiction story hope you enjoy it. Read and comment. Thanks X

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Clary was 4 when her father Luke died. He was murdered on his way home from work on a late winter night. They never found his murderer. They said it was "just another robbery gone wrong" and he was just at the wrong place at the wrong time. The police said like it was meant to be comforting. Jocelyn cried every night until there were no more tears to shed. Luke's best friend, Valentine, was there for her to help comfort her and to help her with anything she needed. They grew so close after that, that a year later, she married him. He moved in with his son, Sebastian, who was 2 years older than Clary (Clary is 5 and Sebastian is 7). He looked just like Valentine with white blonde hair, black eyes, and pale skin. Clary looked like her mom with reddish-orange hair and big green eyes and pale skin.

Shortly after they moved in, Valentine become abusive to the kids. If they didn't listen or if they would talk back, he would take them to the basement and whip them on their backs until they bled. Sebastian always got most of the punishments. He was whipped almost every night. One night, Valentine whipped Sebastian so bad, he couldn't walk. He crawled from the basement, up the stairs and towards his room but only made to Clary's room. Clary found him and dragged him to her bedroom and cleaned and bandaged his whip marks the best she could. From that night on, Sebastian slept mainly in Clary's bed. But as they got older, Jocelyn made it clear it was not appropriate for them to sleep in the same bed anymore, so they now sleep in their own beds. They made a promise to each other that no matter what, they would never let anyone come between them. But sometimes promises are hard to keep especially, when you made one when you were just a kid.

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11 years later Clary is 16 and Sebastian is 18

*Clary POV*

The sound of the alarm clock goes off and wakes Clary from a deep sleep. She groans and knocks her clock on the floor and falls out of bed with a loud thud . "Ow. It is going to be a bad day." she said to herself. Clary's door opens and her step brother Sebastian walks in looking around. "Clary are you okay? I heard something fall." Sebastian says and that's when Clary notices he is only wearing boxers briefs. He must have just gotten out of bed because his white blonde hair is all a mess. His toned pale skin with his hard 6 pack stomach was showing. He was beautiful…wait. What did I just think? No, he's your brother. Stop staring Clary. "Oh, umm...yeah. I just fell out of bed and I think I killed another clock." Clary said trying to keep her eyes from his body while trying to hide her red cheeks with her hair.

Sebastian was still there, standing in front of her, not saying anything. She finally looked up at him and he was staring at her with this weird look in his eyes. Clary looked down at herself and realized she was only wearing a tight tank top, with no bra and a pair of black lacy underwear. She gasped and quickly jumped back into bed and covered herself up. Her cheeks flushed redder than before.

"Um…O..Okay…um...sorry…" Sebastian finally says and then he realized he was only in his underwear. "OH SHIT..UM..SORRY .." Sebastian said as he backed up quickly out her door and closed it behind him.

'Well that was awkward.' Clary thought to herself. She gets out of bed and runs to her bathroom to take a shower and get ready for the first day back at school. She quickly showers and blow dries her hair and tries to find a cute outfit. She is determined to get a boyfriend this year. She is sick of every one of her friends having boyfriends and not her. I mean, she is 16 and has never had a boyfriend. She has to be the only girl in school who hasn't had a boyfriend.

She looks in her closet and pulls out a black top and matching skirt. The skirt goes to her knees but it is tight fitted so it shows off the curves of her hips and butt. The top has see through sleeves and the front was see through so you could see her cleavage. It seems like she finally got boobs over the summer and she now has a C cup and has an hour glass figure like her mother. The top shows off a little of her pale and flat tummy as well. She started to run everyday, starting at the beginning of summer and it has transformed her body. Now, she is toned and sexy. They were gone all summer on vacation with her mom. Ever since Valentine was arrested and imprisoned for abusing her and Sebastian, her mom has been spoiling them with anything and everything. She even bought them a new wardrobe using all of Val's money. She got everything that was Valentine's after the divorce. All of his money (and he had a lot), the house, his vacation house by the beach, and a cabin in the woods. They haven't seen any of their friends since they got back yesterday so they have no clue how good she looks now. Clary put on red pumps and her black leather jacket to complete her outfit and then she started her makeup. She put on eyeliner, mascara, and lip-gloss then decided to leave her hair down and put some stuff into it for frizz. She grabbed her bag and her sketch pad and went down stairs to the kitchen where her mom was cooking.

"Hey honey! I hope you're hungry…oh honey, you look amazing!" Jocelyn said.

"Thanks mom. You don't think it's too much for the first day of school?" Clary asked.

"No, honey. You look beautiful." Jocelyn said as she put a plate of pancakes and bacon in front of her. Clary sat down and starting eating when Sebastian jumped in the set next to her and stole one of her pancakes and then stuffed it in his mouth.

"Hey! Get your own, Bash!" Clary said shooting daggers at her step brother while he just grinned at her. She ate quickly and got up to put her plate in the sink when she heard Sebastian choking on his food. She looked back at him and he was staring at her with his mouth wide open.

"Jocelyn! Are you really going to let Clary go to school in that? Every guy in school is going to be hitting on her all day." Sebastian said while he was still staring at her.

"She looks beautiful and she is covering up more than what I see some of the girls wearing at that school of yours." Jocelyn said. "And hey, maybe she will find someone special this year. I met Clary's father when I was only 16." Jocelyn said with a little sadness.

"Okay…um...come on, Bash. We need to go before we are late. You are taking me today because there is no way I'm taking my bike when I'm wearing a skirt." Clary said as she grabbed Sebastian's arm and pulled him out of the kitchen. "Bye mom! See you later."

Clary got in Sebastian's car and sat next to him in the front seat. It only takes 15 minutes to get to school and when they made it there and parked, Clary got out of the car and walked with Sebastian to the front doors. Everyone's eyes were on Clary as they walked. She could hear guys whistling and Sebastian growled at each one of them. They walked to where their group of friends were to meet them. Isabelle, Simon, Alec, Magnus, Jordan, Maia, Julian, Emma, and Mark were all waiting for them.

"OMG, you look amazing Clary!" Isabelle screamed. The guys eyes popped out of their heads when they looked at her. "OMG, I missed you so much!" Izzy says and then hugs Clary.

"I missed you too. Where's my hug?" Mark said as he eyed Clary up and down with a smirk on his face. Mark has blonde hair, fair skin, an amazing body, and 2 different colored eyes which makes him unique. Mark, Jordan, and Sebastian are the hottest guys in school.

"I double that….wow." Jordan says winking at Clary. Jordan looks like freaking Zack Efron, only tanner.

Clary gives Mark a hug and a kiss on the cheek and then pulled back and winked at him. Mark just stands there staring at her while she walks over to Jordan and gives him a hug and Maia and the rest of the gang.

"Seriously guys. I'm standing right here. Stop checking out my sister." Sebastian growled at them and then the bell rang.

"Okay, whatever. Lets just go to class. The bell just rang and we are all going to be late." Clary says as her and the girls walk away.

*Sebastian POV*

He watches as Clary leaves to go to class, swaying her hips and leaving them all staring at her.

"I hate to see you go but I love to watch you leave." Mark says checking out Clary's butt as she walks away.

BAM! Sebastian punches Mark in the face. "What did I tell you before, Mark? She is off limits to you!" Sebastian growls at him. The only thing he sees is red. How dare Mark think that it's okay to check out his Clary?

"Okay man! Damn! You don't have to go all psycho! I mean, come on? Can you blame me? Your sister is hot, you know, and whether you like it or not, guys are going to look at her and flirt with her. You just need to get over it and stop with the whole 'psycho overprectvie brother' act. I mean, you act like a jealous boyfriend." Mark says and now Sebastian is really pissed. He is trying to cool down so he doesn't kill Mark. They just don't understand. He is totally in love with Clary, and has been for a while, but she is his step sister. They don't have the same blood but he knows nobody would understand. Especially their family.

He knows he will never feel for any other girl what he feels for Clary. She is his light. She's the reason for life. It's like his whole world revolves around her and she doesn't even know it. Without her, he would be left in the dark with nothing. She is in his every thought and in every dream and he doesn't know what to do about it. Should he just tell her how he feels? If he does, what if she doesn't feel the same way? He doesn't know what he would do. His heart would harden and he would have nothing left but darkness.

"Hey. Are we still meeting you at your house for band practice Bash? We haven't practiced that much all summer. It's not the same. Jordan tried, but he's not as good as you…no offense Jordan." Mark said to him.

"Yeah. Sounds good….just keep you hands off my sister and everything will be good." Sebastian says as he eyes Mark.

"Okay dude. Whatever." Mark says as he walks away to his class. "But if she wants my hands on her...well, how can I say no?" Mark says winking at Sebastian as he starts to run from him while Jordan is trying to hold back Sebastian from killing him right there in the hall.

"Come on dude. We have to get to class. He was just messing with you." Jordan says, pulling Sebastian to their class.

'Clary will be mine and no one else's. She belongs to me and I belong to her. Who else do we belong to but each other?' Sebastian thought to himself. Yes, he will do whatever it takes to make her love him and no one else. Sebastian had a wicked grin on his face just thinking about it as he walked down the hall.