A/N: Welcome to Young Blood. This is a story where Stiles has a sister, though, you would've figured that out by now anyway. She's a little sister, just by one year, so she's 15 in season 1 and 2, and 16 is season three a and b, and season four. She'll be 17 in season 5 and 6a, and 18 in 6b.

Fancast for Sam is Danielle Campbell. She's 5'2.

Anyways, have fun reading and bear with the slow beginning.

Chapter 1: Saint Sammy

Samantha Stilinski was not your average fifteen year old. I know, a dopey, unoriginal first line, but bear with me here. Sam was the kind of girl that always had a lot on her plate. That wasn't necessarily anyone's fault, considering she couldn't blame her mother. When you go out like that, no one can blame you for anything. Stiles had been eight. Sam was seven. When she got to about nine, she started learning to cook and clean from her dad, and when she was ten, it became a regular thing where she'd clean what she could and he'd do all the heavy lifting and cook with her. Then when she was eleven, she did all the cleaning. Once she got to twelve, she started doing almost all of the cooking.

Whether it came out delicious or burnt to a crisp, her father ate it with a smile because, at the very least, she was trying. Now that she was fifteen, almost sixteen, she had done all of her father and brother's laundry, all of the dishes, and even pre-cooked some casseroles, lasagna, and two different stews that they could reheat for dinner for the times when she wasn't home to cook them dinner. It made her life easier when she was home too. They could come and get their dinner as they pleased and she could rest easy knowing that they wouldn't turn to fast food or try making something that would ultimately waste their precious time. Well, that was the case for her father. Being a Sheriff, he didn't have a lot of time. Stiles on the other hand was just hopeless when it came to food.

There was never a doubt in her mind that whenever she had a sleepover or a school trip, or even a soccer practice, Stiles would leave her a big mess, but she knew her father would at least try to pick up the slack, as he did whenever she had something to do other than be the matriarch of the household. Though, this was the first year that she had a job too. Just Saturdays, Sundays, and monday after school.

Sam got a lot of tips at the diner when she batted her pretty, ocean blue eyes and touched her warm, chocolate colored hair behind her ears. She was young, yes, but age didn't matter when your waitress sweet talked you into buying that slice of pie or giving you a cup of coffee on the house.

But right now? She was getting ready for school.

It was early in the morning and the 5'2 teenage girl was already awake before her brother. This was a normal routine. Sam was always awake before everyone else. Hence the coffee. Though, it was rather redundant that she washed down her daily adderall with coffee, but she didn't care as she ironed out her usual wavy mess of hair with her straightener. Her chocolate hair soon cascaded past her shoulders in pin straight tresses that ended at the middle of her back. Sam could hear the sound of her brother stirring, getting irritated with his alarm that wakes him up for school. By that point, she was already onto her makeup.

Stiles stumbled into their shared bathroom and turned on the hot water in the shower.

"Do you mind? You're going to steam up my hair before I even finish my makeup," Sam told him as she blended on her foundation. He just turned off the hot water and sat atop the closed lid of the toilet, waiting for her.

"Fine, but hurry because if you want a ride to school, I need to be ready on time," Stiles sighed. She started rushing, but paused to hand him her coffee. He looked like he needed it.

"Oh god, Sammy, you're a saint," he told her, as he did every morning when she handed him a cup of coffee. Sam was quick to contour her face and blend it out before swiping on a bit of eyeshadow that gave her a slight smokey look and finished it off with a little mascara and some tinted chapstick.

"Alright, I'm out. Do your thing," Sam told her brother as she grabbed her makeup bag and hair stuff, placing it in her drawer under the sink. She plucked the coffee from his hands and walked out, still in her pajamas. He stopped her though, by grabbing her arm.

"Hey, if dad asks about last night-"

"I know, I know. Don't tell him Scott was there because you were the one looking for the body alone," Sam clarified. Stiles held up his fist and she bumped it before walking away.

"Sammy! Have you seen my shirt?" Her dad called to her from down the hall. He was getting ready for work.

"Already ironed one this morning when you forgot to pull them from the drier last night! It's hanging on the back of your door!" She yelled back. At the sound of a door squeak, she knew he found it.

"Thanks, sweetheart!" he called back to her. She smiled and went into her bedroom, taking the last sip of her now chilled coffee and placing the mug on her desk before moving into her closet. She dropped her pajama shirt and shorts and put on a bra. It was the first day back to school after winter break, so it was one of the days that her friends would critique the most. So, she put on a fitted, white turtleneck long sleeve. She tucked it into a navy plaid skirt that was striped with light blue, red, and pale yellow. To help with the cold, she had sheer black tights on, and fuzzy white socks to peak out of the tops of her black high heeled ankle boots.

Anyways, the last thing she put on was her mother's necklace. It was just one simple little crystal on a simple silver chain, but it was something she'd grown so used to wearing that she only ever took it off to sleep, shower, or swim, because she was afraid of losing it.

Sam grabbed her backpack from her desk chair and the mug from her room, and made her way down the steps to the kitchen, She dropped her backpack on the couch as she passed through the living room before she made it to the kitchen. Sam rinsed the mug from her room out in the sink before slipping it in the dishwasher. She grabbed an apple from the fruit basket on the counter and sat on a stool, waiting for her brother to be ready for school. By the time she finished her apple and tossed the core into the trash can, Stiles came flying down the stairs, stopped, ran back up to get his backpack, and then came back down.

"You ready to go?" Stiles asked, grabbing a banana from the fruit bowl as well as his car keys. She wasn't sure why his car keys were with the fruit, but they were, and she just went with it.

"Yup," she answered, popping the 'p' as she spoke. She skipped right along and followed her brother toward the door. She grabbed her coat from the hook and slid it on.

"Bye dad!" "Bye dad!" They both called out to their father who was coming down the stairs in his Sheriff uniform.

"Bye, kids!" He called back to them. The two went out the door and Sam climbed into the passenger side of Stiles's Jeep, Roscoe. It may have been cold, but she rolled down the window anyway as Stiles turned the key in the ignition and shifted into gear. They got going and she turned on the radio.

"At first, the two of them just sat there as they listened to the music, but then one particular song came on the radio. The one song that neither of them could resist. The into rolled around and the two of them looked at each other before breaking out into rap.

"This one is for the boys with the boys with the boomin' system, top down AC with the cooler system! When he come up in the club he be blazin up! Got stacks on deck like he savin up!"

The two of them went on like that, rapping and singing Superbass all the way up until they were two blocks away from school, and Stiles turned off the radio as they drew nearer to the entrance of the school parking lot.

"Why do you always do that? Does having fun offend your masculinity?" Sam asked her brother, and Stiles scoffed at her.

"You and Scott, bringing me down. With him I'm nerd by association, with you I'm the popular freshman's loser brother," Stiles retorted, pulling into his usual parking spot in the section of the lot for sophomores.

Sam just laughed and said, "Dear brother, I always talk highly of you. If people think you're loser, that's just them seeing the real you." Her devilish smirk was contagious, as is spread to her brother.

"Goddammit, I thought no one would notice." The sarcasm was just bleeding into his voice, as it often did. Stiles cut the engine and the two of them hopped out of the powder blue jeep.

"So, do you have soccer today?" Stiles asked. Sam tilted her head from side to side.

"Yeah, first practice is during lacrosse practice today. You still taking me home later?" She asked. Stiles nodded.

"Yeah, I got you, Sammy," he affirmed. The two of them walked up to the bike rack where they found Scott locking up his bike.

"Okay, let's see this thing," Stiles said to Scott as he bounced on his heels slightly. It was like he did and didn't want to see whatever he was talking about.

"What, what thing?" Sam inquired, and Stiles turned to her.

"When we went out last night, Scott and I got separated and apparently he got bit by something," he explained. "Now, let's see it!" Her brother was growing impatient. Sam watched as Scott lifted his shirt, revealing a large white bandage with a little bit of blood that had seeped through.

"Woah!" stiles exclaimed as he reached out to touch it, but Scott's torso jerked back, retracting away from his friend's hand.

"Dude, are you okay?" Sam asked while Scott put his shirt back down.

"Yeah," he mumbled.

"Woah," Stiles said again. Sam felt like this was the dumbest exchange, but she too would sound incoherent if she were her brother.

"It was too dark to see much, but I'm pretty sure it was a wolf," Scott queried, grabbing his backpack off the ground and slinging it onto his shoulder.

"A wolf bit you?" Stiles responded in disbelief. The three of them began walking toward the school.

"Uh-huh."

"Dude that's not possible," Sam stated as they walked.

"She's right, not a chance, man," Stiles laughed. Scott rolled his eyes.

"I heard a wolf howling," Scott maintained.

"No, you didn't," Stiles continued, shaking his head as he spoke. Sam was getting a little side tracked whenever they passed her friends. She was waving to them and saying 'hi' as they passed. Scott scoffed.

"What do you mean, 'No, I didn't?' How do you know what I heard?" Scott was hooked on this and Stiles was his person. Sam knew that Scott needed him to believe what happened. Sam could see it.

"Because California doesn't have wolves, okay? Not in like 60 years," Stiles explained, the three of them stopping in front of the steps up to the school.

"Really?" Scott asked. Sam nodded.

"Really. There are no wolves in California," Stiles shut him down.

"They were all either hunted or migrated to other areas," Sam added for her brother.

"Alright, well, if you don't believe me about the wolf, then you're definitely not gonna believe me about when I tell you I found the body," Scott mused, slightly proud of himself in an odd way.

"You-are you kidding me?" Stiles was so excited that Sam rolled her eyes.

"No, man. I wish. I'm gonna have nightmares for a month," Scott down played. Stiles wheezed laughing in shock.

"Oh, god, that is freakin' awesome. I mean, this is seriously gonna be the best thing that's happened to this town since...since… since the birth of Lydia Martin," the petite strawberry blond strutted right up to Sam and grabbed her by the arm as Stiles fawned over her.

"Hey Lydia," Sam greeted her friend. The strawberry blonde smiled.

"Hey, Sammy. You look cute. Very put together," Lydia smiled. Sam rolled her eyes at her as they walked into the school.

"When you say I look put together, that always means I'm not showing enough skin," Sam retorted. Lydia laughed.

"No, sweetheart. Homely is when you're not showing enough skin. Put together is when all or your clothes are very form fitting. I would know, every time you wear that skirt, you get attention from all of Jackson's lacrosse boys," Lydia explained as she led Sam off towards her morning class that was right next door to Lydia's. "See you later, Sammy."

"Sammy!" It was Jackson. He was yelling to her from the Lacrosse field as she rolled onto the soccer field in her practice keeper jersey and Adidas track pants. She jogged over to him in her cleats and met him between the lacrosse field and the soccer field.

"What's up?" She asked him as she noticed Lydia and the new girl climb into the bleachers to watch the Lacrosse practice.

"Friday Night. You're coming to the party after the scrimmage," He told her. Sam laughed.

"Okay, but pushy much," she told him. He shook his head.

"Sorry, just, if you come, Lydia's going to tell you to wear the black dress and I'm telling you, don't wear the black dress. Brandon likes the black dress and is going to cling to you all night-"

"Oh my god, ew. Fine, no black dress. But thanks, though. I'll probably be sticking to Danny. He'll keep me out of trouble when you're off macking on Lydia," Sam grinned. Jackson chuckled.

"Alright, solid plan. Just, stay where one of the group can see you-"

"I know, I know. Being single and being a freshman isn't a great combination but it's the one we're gonna have to deal with. Anyways, good luck with filling out your first line," she told him before he fist bumped her.

"And you, good luck with making first line," Jackson told her before trotting back to the lacrosse field and she jogged back to the soccer goal. The other goalie, Evelyn, the reigning sophomore on first line, was standing in the other goal. They were making them scrimmage to try out.

The coach blew the first whistle, and the scrimmage began.

Sammy was sitting in the dark, on a bench outside the school. Stiles had left without her for some reason, and he wasn't answering his phone. She was just alone, with a pair of sweatpants and a t-shirt on under her coat. Her clothes from her soccer practice. She tried calling Stiles again, but no answer. So she called her dad. She knew he was busy, but the phone rang, and rang, and rang. But then he picked up.

"Hey, sweetheart. I'm a bit busy can I call you back-"

"Stiles forgot me at school. He left with Scott," she told him briefly. There was a pause, and then a sigh.

"Alright, I'll be there in ten. But you're gonna have to sit in my office for a bit while I wrap things up," he told her.

"Alright, see you soon," she replied before hanging up the phone. She sat there, waiting for the next ten minutes until the Sheriff's Cruiser pulled into the parking lot. She pulled open the passenger door and threw her backpack into the baseboard before climbing in.

"I'll have a talk with your brother," he said as she put on her seatbelt.

"It's fine. Just tell him to keep his ringer on. I called him a bunch and he just blew me off," Sam sighed.

"I can do that. Anyways, how did practice go?" He asked her as they drove down to to the station.

"It went well…" but then her serious face broke. "I made the starting lineup!" she celebrated, grinning from ear to ear.

"That's amazing! I knew you could do it, Sammy," her dad congratulated her as they drove. "How about in celebration, we pick up some burgers and fries to eat down at the station? I'll even throw in a milkshake," he offered. She smiled and nodded, as always.

"Yeah, let's do it," she smiled. She loved milkshakes, and her father knew that.

"Dude, Scott was amazing today! He was all over the place!" Stiles was telling he walked into the house. "He made first elimination and barely even broke a sweat!" He seemed so excited. Sam was sitting at the kitchen table with her homework. She was in her pajamas and her wet hair from her shower was spilling out over her shoulder.

"That's great, though, better luck next year on making first line," Sam told him quietly, turning the page in her math textbook to keep doing her homework.

"Yeah! I'm just gonna keep practicing and I'll get there, even if it takes me until senior year. I'm gonna get there," Stiles pressed as he sat down at the table next to her. "Hey wait, you still haven't said anything. Did you make first line for soccer?"

Sammy was quite for a moment. "Coach said my height is a sacrifice she can make for talent," she informed him dryly. Stiles immediately hugged her so hard that he picked her up and swung her back and forth.

"That's awesome! And how did Evelyn take it that she wasn't first line anymore?" Stiles asked. He knew the other goalie, and apparently she was not a very nice person when it came to other girls.

"She...uh...Well, I'm not exactly sure. She kind of gave me this weird look and then stormed off," Sam explained. It really was how it went down. Evelyn narrowed her eyes at the pipsqueak Stilinski and curled her lip before storming off. It was a rather odd exchange to be had.

"Oh, that's not good. When she doesn't directly attack, it means attack is imminent," Stiles sheeped, but then his demeanor changed back to excited. "Oh, well. Sucks for her because my sister is first line!" Stiles celebrated. He hugged her again, he feet leaving the ground for a moment before he put her back down, letting her sit in her seat again.

"You forgetting something?" She asked him, narrowing her eyes at her brother. His demeanor crumbled immediately as the gears turned in his head.

"Oh, crap. I was supposed to give you a ride home, wasn't I?" He sheeped, thinking about a way to recover the situation.

"Yeah. But it's fine, it just means you missed out on Diner takeout with dad," she shrugged.

"Oh, come on!" Stiles groaned before walking away.

A/N: Alright! I know it was a slow start, not a lot of action, but I hope you all liked the beginning and the relationship between Sam and Stiles, Sam and Lydia, and Sam and Jackson.

Don't forget to Read & Review!

-redwoodoriginal