Disclaimer: I do not own Teen Wolf ETC

Title: Priceless

Summary: Thalissa Stilinski, student at Beacon High, master of trigonometry and twin to the erratic and secretive 'Stiles' Stilinski. But what will happen to those secrets when a new boy tries out for Lacrosse? An OCxLiam story. Please review.

A/N: Welcome to my new fic! I've finished writing FBFA up to the end of season 3, so I thought I'd give this a try!~ Let me know what you think in your review! Enjoy!

Twitter: SPCMRose - Follow me for previews, update info, and general bonus stuff.

Family is priceless~ Book one

"Stiles!" Thalissa yelled as she knocked on her brothers door. "Wake up! I made breakfast! Dad's already gone-"

She'd cut off when the door swings open. Stiles peeks his head out, an excited expression on his face. "Breakfast?"

"Of course that's what gets to you," Thalissa groans but steps aside, pointing to the kitchen. "Go eat, enjoy, yadda yadda."

Stiles grins and steps out of his room, kissing his sister on the cheek before dashing off with a yelled, "You're the best!"

"I know!" She calls back and chuckles as she turns towards the bathroom. Thalissa pulls his door shut before hurrying to claim the shower first.

One good thing was, that if she made breakfast for her brother, she'd always get the shower first. The warm water calmed her nerves, she always hated returning to school.

It wasn't like she was hated at Beacon High or anything, she just never really got along with anyone in her grade. At one point she'd been sitting with her brother and his best friend (although she liked to tease that he was his husband), but that had pretty much stopped when they entered their Sophomore years.

She never found out why they'd suddenly begun whispering and hiding things whenever she'd enter the room, or why her brother was always disappearing, only to show up at crime scenes.

It didn't bother her too much, she'd been busy enough the last few years with her academics. She wasn't a genius, like her brother was, but she worked hard. There was always extra-credit to be earned from her Trigonometry teacher.

As she stepped out of the shower she quickly dried herself, then hurried to pull on her black swing vest and jeans. She then did her mahogany blonde hair in a french side braid, quickly applying her classic eyeliner and grey eye shadow.

Lydia had always complimented her on her style, at least until she joined in with her brother's secrecy. Thalissa sighed forlornly before leaving the bathroom and hopping downstairs.

"Stiles," she sung his name as she plopped down at the counter next to him. He was currently stuffing his face with the bacon she'd made. "First day today!"

Her brother blinked at her, and then at his food, before shoving the rest of his eggs in his mouth and hopping off the stool. "I know. Thanks again Lissa," he gave her a one armed hung and then raced upstairs.

Thalissa watched him leave, feeling her smile disappear from her face.

That always happened… he always left as soon as she came into the room.

She quickly went about grabbing a few slices of toast and decking them with scrambled eggs. She heard the water turn on upstairs and by the time she'd finished eating, Stiles was already by the door. "Ready?" He asked her.

Thalissa nodded and placed her plate in the sink before grabbing her backpack and following her brother out. He normally drove her to school, mostly because she didn't have a car.

It wasn't that she couldn't drive, she'd actually passed her test with flying colors, and the money she made from her job stocking shelves at the 'mart could have bought her a second hand convertible months ago.

She just didn't want to have another reason for Stiles to avoid her.

Thalissa could just imagine what would happen when she finally got a car. She'd hardly ever see her brother anymore.

"Catching up with Scott today?" Thalissa asked as he pulled out of the drive.

Her brother glanced at her and shrugged. "Probably. What about you? You meeting up with Brian?"

"No, Brent changed schools last year," Thalissa said, glaring hard at her brother.

Stiles frowned at her. "Yeah?"

"Yes," Thalissa said sadly. "I did tell you."

When the car grew silent again Thalissa bit her lip nervously. This would probably be one of the only times she talked to her brother today. "What about that girl? Malia?"

"Oh," he said in a tone. She knew that tone, it was the 'can't talk about it' tone. "Yeah she'll be there today," he said distractedly.

Well, Thalissa knew better than to press him on the matter.

When they reached the school, she glanced at the lacrosse gear in the back seat. "Trying out today?" She questioned as she hopped out of the jeep, grabbing her bag as she did.

"Yeah," this brought a grin to her brother's face. "I'm going to be first line again."

Thalissa scoffed. "Yeah right," she teased.

"I am!" He exclaimed, offended. "You'll see. You're coming right?"

She was about to answer when Scott bounded up to the jeep, her brother immediately turned to the boy, waving goodbye to Thalissa as he did.

Sensing that their interaction was over, she quickly made her way to her locker.

Unfortunately when she finally got it open, her old textbooks fell out. With a grumble she bent down to pick them up, only to bump her head against the locker.

"Ow," she groaned as she rubbed her head. Since when did lockers hurt so much?

Her thoughts were interrupted when she heard an amused laugh sound behind her.

Embarrassed, she turned to see how many people had seen her fail. Only to meet amused crystal blue eyes. "You okay?" The boy asked through his chuckle

He followed that by crouching down and picking up her books as she collected herself. "Um- Yeah no- I'm fine," she laughed nervously and scrambled to stand.

The blue orbs caught Thalissa's brown ones as she blushed furiously.

"Liam!" Someone called from behind him, and his head whipped around in answer. "You should get going."

"Oh, right," the boy said quietly before turning back to Thalissa. "See you around?" He asked.

Thalissa nodded quickly, too quickly. "Of course!-" she winces at her loud exclamation. "-Yes I mean- Yeah," she swiftly said and then tucked her hands in her jeans, only to pull them out a moment later when he holds her books out for her to collect.

"Thanks," she quickly mumbles as he hurries off.

Of course she'd just embarrassed herself in front of him. Of course.

X

Somehow she'd managed to make it to the morning practice on time. She sat at the back of the stands and pulled out her Chemistry textbook to read through as she sat.

Lacrosse didn't really interest her.

But her attention was caught when one of the players catches ball after ball, stopping every shot that made it to the goal. His net flashed left and right and not even a single shot made it into the goal. And then…

He took off his helmet.

"Liam?" Thalissa whispered in shock as said boy grinned at his performance.

Her eyes then flashed to Scott and Stiles as she took in their rather… annoyed forms.

Thalissa then turned, much preferring to watch as Liams muscles rolled under his Nike gear when he practiced. She decided that lacrosse was definitely interesting.

And then Liam's eyes flickered to meet hers, and the same smirk from before grew on his face.

Shit.

Thalissa felt her cheeks warm as she'd just been caught staring, but the boy only waved at her and turned back to his practice.

But Thalissa wasn't the only one to notice this.

Her brother did too.

Stiles was glaring even harder at Liam and Thalissa bit her lip in worry.

What was he planning?

As the boys began to ran, she couldn't keep her attention off of the new lacrosse player. Her eyes tracked his every movement, her chemistry book forgotten.

She grinned when he finished his laps, immediately flowing into push ups.

Thalissa had to admit the boy had skill.

Her attention was drawn back to Scott and Stiles, who were currently whispering as they watched Liam take to the line. He picked up his lacrosse stick and scooped the ball up.

She held her breath as Liam's arm swooped, his ball flying… straight into the net.

Thalissa jumped up in a cheer, only to sit down a moment later when she realised no one else was cheering. She still gave him a silent "Woo!" after that.

She'd once again drawn the boys attention, and with a small smile she feigned interest in her chemistry book. When she looked up again Liam was grinning at her. She shrugged and flipped her braid.

He chuckled.

She grinned.

Liam then ran to the end of the line, those lining up clapping him on the back for his incredible score. Her brother's friend was next up, and when his shot hit the rim of the net she let out a loud amused snort.

She quickly covered her mouth afterwards in embarrassment, but no one had noticed.

When Thalissa noticed Stiles and Scott glaring at Liam, she felt her stomach churn. They were looking at him as though he was the bane of their existence.

Although, considering Scott wanted captainship, maybe he was.

Worried, Thalissa Pulled out her phone and quickly texted Stiles.

'Chill. Don't hurt the new guy,' she sent him.

But then face palmed when she realised he didn't carry his phone when he played lacrosse.

And so she watched anxiously as the two boys pulled into defense.

Not good…

As the first player ran forward, Garrett, Stiles and Scott quickly worked to free his stick from his hands. The coach then yelled praise and Thalissa couldn't help but cheer as well.

It was a good play.

Thalissa watched with slowly building pride of her brother as he took down yet another player. She cheered again, this time yelling out a very loud, "Go Stiles!"

Then finally, it was Liam's turn.

Thalissa's head whipped back and forth between her brother and the new player.

Her stomach churned as Liam charged. He swiftly avoided Stiles's attempt to stop him and narrowly ducked from Scott's. Then finally his arm sailed once more, the ball landing perfect in the net.

"Yes!" Thalissa shouted. "That was freaking awesome!" She continued.

Liam's head whipped to her, and she held up a big thumbs-up.

He nodded at her and then jogged back into place.

Thalissa then sat down, pleased nothing bad had happened.

"That was luck!" She heard a familiar voice shout from the front of the benches. Malia was standing, pointing furiously at the field. "Do over!"

The coach glanced at her, then scoffed as though she was crazy. "Sweetheart, there are no do overs. This is a tryout."

Thank god for coach, Thalissa thought. He had shut her down pretty nicely.

But then the tan girl gestured again "Ten bucks on Scott and Stiles."

Coach Finstock then grinned, a huge evil grin that set Thalissa's heart racing in anticipation. "I'll take that action," he agreed with a greedy tone to his voice. "Hey! Get back in there Liam!"

Please, Malia sat back down as Liam prepared to charge again. Thalissa tried to meet Liam's gaze to warn him, but his gaze was set in determination. He wanted to get this shot.

The whistle then blew, and Liam charged. Once more he easily avoided Stiles's attempt to stop him, and Thalissa fist pumped.

But then Scott slammed into Liam, sending the boy flipping into the air.

The crowd was silent as the boy landed, a loud and terrifying sounding crack echoed throughout the field.

Thalissa froze mid cheer.

"What the fuck Scott?"

X

A/N: Hey guys! So this is the first chapter of Priceless. This was inspired by a mix of Jordan Parrish's: Behind the pretty eyes, and Black Sun by IsYourH3artTaken.

A huge thanks to both of them~

I hope you enjoyed, and I look forward to starting this journey with you!

-Hope