A/N: This idea seriously hit me one night when I was trying to fall asleep and I couldn't just let it go so I immediately started writing. I wanted to write this to have only one long chapter but the story deserves more than that.

Side information: The fire never happened, thus allowing Derek to have a family and be less broody and happier.

Laura is eight years older than Derek.

Derek is five years older than Stiles.

Bau is the alpha of the Hale pack and Derek and Laura's father. Maggie is their mother and Bau's mate.

I think that covers the major things of the story, so now I leave you wonderful readers to the first chapter.

Enjoy!

He was on his nightly run of the territory, making sure that rogue packs or hunters have not moved into the area or set up traps. On his way back home, he passes by a house, the smell of blood and death assaulting his nose. He turns to face the house where the devastation no doubt took place. His heart stops and makes a mad dash into the house.

The father was in the hallway, multiple stab wounds to the chest; his wife was only five feet away in front of a closed door. Crying behind the door caught the man's attention. Careful of the bodies, the man shuffles his way to the closed room, opening it and finding it to be a nursery; the baby in the crib. Making his way over to the child, he bends over the edge of the crib, picking up the crying infant.

"Shhh, everything is going to be ok little one." Cradling the baby, the man grabs the blue blanket that was hung on the side, wrapping it around the child. "Everything is fine now." He exits the room, careful to shield the infant's eyes from the gruesome scene. Quickly, he takes off into the woods, never looking back and going the only place where he knows is safe: home.

oOo

The predator lurks around the corner, watching and waiting for the right moment to attack its prey; when it's least expecting…

"MOM! Tell Derek to leave me alone!" Derek had pounced on his older sister, sinking his baby wolf fangs into her arm. "Eww gross!" Laura dislodges Derek from her arm, leaving a trail of drool and blood in his wake. "Now I'm going to have rabies!" She storms out of the room to slam the bathroom door. Derek doesn't bother getting up from the floor from where he landed when Laura threw him. He sits on the floor, looking up with big blue eyes when his mother enters the room, trying to suppress her laughter. Derek beams up at her, a toothy grin with a few missing teeth.

"Derek," She tries to make her voice stern, but knows she fails and instead sits on the couch, patting the spot next to her. Derek scrambles to his feet and jumps on the couch to snuggle into his mother's side. "Next time, how about you don't bite your sister?"

"Ok momma." Derek snuggles closer to his mother, taking in her scent and wrapping his arms around her waist. She snakes her arm around Derek, pulling him in closer. The little boy starts to close his eyes when he is hit with the aroma of his father. "Daddy!" Scurrying from the couch, Derek rushes to the front door, flinging it open and running outside to greet his father. "Daddy!" Smiling, Derek greets his father, ready to jump into his dad's arms.

"Derek." His father's voice is soft but commanding. The smile fades from Derek's face but notices his dad carrying something.

"Daddy?" His father meets him in the middle and places his free hand on his son's shoulder.

"Let's go inside."

"What do you have?"

"You'll see when we get inside." The father, Derek and the baby were greeted at the door by the mother.

"Bau, why do you have a child?" The mother reaches her arms out to take the infant from her husband. "He's just a tiny thing. How precious." She pushes the blanket away from the infant's face to get a better look at the child. "What happened?"

Bau's face becomes grim. "His parents were murdered. I-I went inside because…" he trails off.

"Who?"

"The…" He stops, not wanting to finish, his wife stares at him, waiting for an answer.

"Who were they?"

"The-the Stilinskis." His wife gasps, tears present in her eyes. Everyone knew the Stilinski family, they were loved by all. Who would do such horrible things to a wonderful family? Why would they just leave a child without parents?

Bau looks down at the infant. "Maggie…"

"We'll take care of him."

"Are you sure? He's human."

"He needs a family. We can't hand him over to an agency." Tugging on her pants reminds him of Derek's presence. Maggie looks down at his five-year-old son, she smiles. "Derek?"

"Can I see the baby?" Smirking, Maggie nods to her son, kneeling down so Derek can take a look. The young boy's eyes rake over the infant, who is starting to stir. Brown, doe-like eyes open, locking with Derek's. The youngest Hale's eyes flash a brilliant blue and the infant gurgles, blowing a bubble only to have it pop in Derek's face. Derek shakes his head and brings his hand up to wipe away the baby's spit. "Stiles."

"What was that honey?"

"Stiles. That's his name." Bau smirks and ruffles his son's hair.

"Stiles." Bau sighs. "Welcome to the pack." Maggie smiles up at her husband and then turns her attention back to the baby, Stiles.

"Daddy." Bau looks at his son. "What's that smell?" Sniffing the air, Bau and Maggie's face scrunch up. Derek's mother stands.

"Derek, can you call your aunt Lizzy? Ask her if she can come over with some baby supplies?" Derek nods and saunters into the house, going towards a phone to call one of his aunts. When Maggie knows that Derek is busy, she turns to her husband. "You saw that too right?"

"Yeah."

"What should we do? Is it possible at this age?"

"Never heard of it before, but it's possible." Bau looks down the hall towards his son. "Derek has found his mate."

oOo

From an early age, the Hales made sure that Stiles was accustomed to the pack and not afraid. Stiles took it in stride, claiming that his family was super cool and when he got older, he wanted to be just like everyone else. He declares his excitement and tells Maggie and Bau that one day he'll become alpha of the pack and be a great leader. Derek would always retort, telling the younger boy that he wasn't alpha material and that Laura would take the position.

Stiles would have tears in his eyes but Maggie, Bau and/or Laura would just pick up the younger boy and tell him that anything was possible. Stiles, when looking over their shoulders, would stare directly at Derek, remove his thumb from his mouth, and stick his tongue out at the wolf. Derek would scowl and stomp his way to his room or outside.

Stiles was a quiet child until the age of five, where he and Derek would gang up together and go on adventures. Well, more like Derek would bribe Stiles to do his dirty work and when the plans failed, Stiles would get caught and Derek would get out scotch-free. Laura and their parents were quick to discover Derek's involvement with the stunts Stiles tries to pull off.

"Are you sure this is going to work?" Stiles watches as Derek listens for any approaching family members. Hearing none, Derek ushers Stiles down the hall, towards Laura's room. "Derek?"

"Go, she's not in there; no one else is in the house."

"You promise I get a cookie?"

"Stiles. Go." Derek growls out shoving Stiles through the slightly opened doorway. Stiles stumbles forward, looking back at Derek, who just growls. Stiles turns around and ventures farther into the room, bumping into some furniture. Seeing the designated spot, Stiles wonders over, picking up the pillow and grabs the hidden diary. He looks back at Derek for approval, but the older boy was no where to be seen. Before Stiles had the chance of scurrying from the room, Laura rounds the corner, stopping in her doorway.

"Stiles," Her voice was calm. "What did he promise you this time?" Stiles looks up, brown eyes growing bigger and he bites his lip. "Stiles."

"He, he said I, I have a cookie." Sighing, Laura kneels in front of the little five-year-old, grabbing the diary to set it back on her bed. Stiles averts his eyes as Laura wraps her arms around the small boy's frame, picking him up and carrying him over to the bed, lying down with Stiles against her side. Stiles snuggles into the warmth and sticks his thumb in his mouth. Laura hears the boy's heartbeat and breathing even out. "Derek." She whispers, but knows that he would be able to hear. "We'll talk about this later." She can hear Derek grumble as he marches his way back to his room.

Laura runs her hand through Stiles' buzzed hair. "He'll see soon enough, Stiles." She whispers, bending down to place a kiss on the sleeping boy's head.

oOo

As the years progressed, Stiles became an important asset to the Hale pack. Sure, he knew tons of information about werewolves since he grew up with them, but he would help Bau make battle tactics and help with training.

Stiles was not allowed to run with the pack on full moon nights, but he would be sitting on the porch coming up with ideas or laying on the ground, hands behind his head as he watches the luminous Night Goddess take her thrown above as her children run free in her guiding light.

One night as Stiles waits for the pack's return, he's lying on the ground, eyes closed as he enjoys the howling in the distance and the other sounds of the sleeping forest surrounding him.

A twig snaps to his left, making the teen shoot up from his position, hand ready to pull out his wolfs-bane soaked knife. Rustling and shuffle of feet were getting closer. Stiles' hold on the knife becomes tighter as he waits to see the predator. The sounds come from the left and Stiles waits for the perfect moment.

The cause of the twig snapping jumps from its hiding spot, landing right in front of the teen. Stiles stands ready, knife out and watching the wolf closely to determine its next move. The teen notices the wolf's eyes glance to his right hand and its paws flex in the dirt. The brown-eyed boy smirks and plants his feet firmly onto the ground, waiting for the wolf's attack.

Launching, the wolf soars through the air, landing on Stiles and the two topple to the ground. The two roll around trying to gain dominance over the other. Stiles sees the perfect opportunity and stabs the predator in the side. The wolf howls in pain and stumbles off of the boy. Stiles gets to his feet, stalking over to the wolf, ready to end its life before it could harm another being.

"Stiles, drop the knife!" Bau's voice commands as he and the others exit the woods.

"Bau." Stiles looks up to meet the older man's gaze. "This wolf tried to kill me."

"This wolf is Derek." Stiles immediately looks down at what used to be a wolf's form.

"Derek, what the hell?! You tried to kill me!" Derek just grunts, holding his bleeding side. The older boy's eyes flickering between forest green and his beta blue.

"What's on the knife?" Derek grunts out.

Stiles rubs the back of his head, "Umm…"

"Maggie, Sandy, Ross, get Derek inside, clean the wounds. The rest of you can go home. Stiles come with me." Bau wraps his arm around Stiles' shoulders, leading him into the woods to enter a clearing. "Have a seat." Bau directs Stiles over to a log, both taking a seat.

"I'm sorry about Derek. I didn't know."

Bau chuckles. "That boy will learn someday, but that's not what I brought you out here to talk about." Stiles opens his mouth to ask but Bau sticks his hand up, stopping the younger man. "I think it's time you learn how to interact with people." Stiles stares at the man.

"If you haven't noticed, I can talk…"

"Stiles, that's not what I mean. Maggie and I have decided that it's time for you to look beyond the horizon, explore a little. That's why you start school on Monday."

Stiles jumps up from his spot on the log. "What? Are you crazy? Why all of a sudden, why not when I was younger?" Thoughts run through the teen's head. "There's hunters aren't there?"

"Stiles."

"Hunters. Tell me it's because of hunters."

"It, it helped with the decision."

"Who are they?"

"You never stop do you?" Bau chuckles.

"Bau, who are the hunters?"

Bau sighs but knows that Stiles won't let the question go until he gets an answer. "Argents."

"They're back? I thought you had an agreement with Gerard?"

"We do… did. There are things happening and they feel that we're not capable of taking care of it."

"What things?"

"Stiles, can you just let this one thing go?" Stiles looks at the man with his 'you're seriously asking me that?' face. "A rogue werewolf. He attacked a teen last night, we think he turned the boy."

"You want me to try and figure out who it is? Why can't you just get Derek or someone sniff him out? Then I don't have to go to public school."

"We thought about it, but the Argents, they, they have a daughter your age."

Never the one to turn his back on a challenge or action, Stiles smirks down at Bau. "I better get one hell of a raise for my allowance."

"You don't have an allowance." Bau chuckles.

"Exactly." Stiles flails his arms.

Bau stands. "Let's get back to the house, see what damage was done." A smile was heard in the older man's voice.

oOo

"STILES!" Derek shouts as he ambushes Stiles' room, shooting silly string over the sleeping form. Stiles gets trapped in his blankets and is unable to escape before Derek pins him to the bed and continues spraying the silly string.

"Derek! Get off of me!" The teen tries fighting off the older man but struggles against the hold. Both break out into a fit of laughter as Derek tosses the can to the side and starts tickling Stiles. After a few moments, Stiles is out a breath and Derek gets off the younger boy, lying beside the other, still laughing. "I hate you." Derek continues to chuckle.

Laura was passing Stiles' room when she notices the two, she smiles. 'Soon. Very Soon.' She taps on the door. "Sorry to interrupt, but Stiles needs to get ready or he's going to be late." She hears the teen grumble in protest and Derek laughing again at the other boy's misfortune, only to have Stiles hit him in the face with a pillow and reply with 'Jerk!' Smiling, Laura continues down the hall to enter her room.

"Are you sure you want to do this?" Derek questions Stiles. The brown-eyed boy is rummaging through his dresser and closet, looking for an outfit to wear as Derek sits on the edge of the bed.

"I have to in order to find out the new furball and keep an eye on the Argent's demonic offspring. Now where the hell… ugh, that girl is going to be the death of me! Katie!" Katie was one of the multiple cousins of the Hales and had Stiles wrapped around her tiny finger at the ripe age of six. She favored Stiles right from the beginning and the two were inseparable. "Found it!" Stiles exclaims as he finds his missing shoe and crawls out of the clutter of a closet. "Dude, you ok?" Stiles addresses Derek, who is staring at him.

The lycanthrope shakes his head and blinks his eyes. "Uh, yeah. I'm fine." He glances at the clock. "You're going to be late."

"Fuck!" Stiles runs around his room, grabbing the last few items and tossing them into his backpack.

"I'll take you. I have to tell you some things anyways, so you ready?" Stiles gives a nod and he and Derek exit the room.

Stiles pushes past Derek, making him slam into the wall. "Last one to the car has to buy ice cream!" He runs down the stairs and flies out of the house and instantly slows down. "Cheater!" Derek was leaning against the camaro, arms crossed and waiting patiently for Stiles. "Stupid werewolves and their stupid wofly powers."

oOo

The midnight black camaro pulls into the Beacon Hills High School parking lot. Parking, Derek turns to face Stiles. "You sure you're going to be ok?" Stiles lets out a huge sigh and stares straight ahead.

"I'll be fine. I know what to do if something happens and I know how to protect myself." He shifts in his seat to meet Derek's gaze. "Ok, what's the stuff I need to know?"

Derek pulls out a picture. "This is Argent's daughter, Allison. Dad and mom aren't sure how much she knows about her family's business, but she's one of the top archers in the country." Stiles nods.

"Demonic child." He looks back out the window and notices that a crowd of students have gathered and are staring directly at him. "What the…"

"You're new and in a kick ass car." Stiles rolls his eyes and makes a move to get out of the car. "I'll be here to pick you up afterwards." With a salute and a 'yes sir!' Stiles walks away from the safety of the car, towards the building.

oOo

Stiles felt that his first day was a waste of time and could have been at home helping Bau with training ideas. There hadn't been anything to clue him into who the newly bitten boy may have been and he made sure to keep his eye on the Argent girl but at a safe distance, at least until lunch anyways. That's when things started getting interesting.

At lunch, Stiles scans the cafeteria for an empty seat or someone who would allow him to sit at their table. He recognizes a few people from some of his classes but decides not to sit with them. As he finds a seat, he makes his way through the café but a voice calls out, calling him over to a table a few feet away.

"New kid, over here!" A blond boy shouts. Stiles sighs but takes the offer and sits in an empty seat. He looks around the table and notices the others sitting at the table. Stiles recognizes the blond, Jackson Whittemore, who everyone made sure Stiles knew that Jackson was the Captain of the lacrosse team and that the school practically belongs to him and Lydia, the red head on Jackson's right. Stiles looks at the others at the table, noticing a boy sitting on Jackson's left. On the other side of the table, the spawn of Satan and next to her a boy.

Allison offers her hand. "Hi, I'm Allison." Stiles looks at the hand as if it was going to burn him but takes it after a moment.

"Stiles." He takes in the girl's appearance and watching her every move. Allison elbows the boy beside her, making him look up.

"Umm… Scott." Scott looks at Stiles questionably but averts his eyes to look at the tray of food in front of him.

"New kid…"

"Stiles."

Lydia scoffs but continues. "You trying out for lacrosse? Jackson could use the practice of pushing people to the ground, you know as the team captain and all."

"Co-Captain." Scott corrects the red head.

Stiles smirks. "I'm not really…"

"You probably wouldn't be able to handle it anyways. Not everyone is born to play but the team could really use someone for target practice since McCall magically became…"

"You're just mad that you have competition now." Allison defends Scott.

"Someone just doesn't get like that overnight unless…" Stiles tunes out the conversation and looks towards Scott.

"I'm in. When's practice." Stiles finds himself saying.

"After school."

"I'll be there." Stiles' eyes narrow on Scott and Allison as the two lovebirds were now making kissy faces at one another.

oOo

"Everything ok? Do you need me to pick you up?"

"No, everything's fine, Derek. I just… I have an idea of who the boy who was bitten."

"Who?"

"Scott McCall. He's uh, he's dating Allison."

"Does he know what her family does? Shit, Stiles you have to make sure he doesn't do anything stupid."

"Already on it, have lacrosse practice after school today."

"Thought Stiles didn't like sports."

"He doesn't, but Scott's on the team…"

"Fuck! I'll be there, I'm not going to have us exposed by some newly bitten kid." Derek hangs up before Stiles had a chance to talk, no doubt going to Bau and tell them the new development. This certainly puts a twist on the whole situation.

oOo

The final bell of the day rings and the teens are finally free to go. Stiles heads to the locker room and picks the locker closest to Scott.

"Scott right?"

"Yeah. Stiles?"

"Yeah." The two shake hands and start getting ready for the day's practice.

Outside, Coach is yelling at the team with his usual 'pep talk' before sending Danny, the goalie, to the goal and having a few others standing in front of the goal to help Danny. The rest of the team lines up ready to go.

Stiles looks around and notices Derek on the edge of the woods, both nod their heads. The whistle blows and practice has begun.

One after the other, the teens get the ball and make attempts to make a shot at the goal. So far, only Jackson has managed to make it past the other players and score. Smirking as Coach pats him on the back, the next teen is up.

Scott.

Stiles watches intently as Scott barrels towards the goal, his maneuvers impossible with human abilities. Then, Scott is crashing into the goalie, standing up to hold his head and run towards the school.

Derek is already gone by the time Stiles looks back up. Finally, Stiles decides to run after Scott, thinking it better than to leave Derek to handle it, he can get, well, he can get Derek-y.

Entering the locker room, Stiles calls out to the other teen. "Scott? Hey, it's just me, Stiles. Wanted to make sure you were ok." He can hear the shower running and starts to stalk towards the entrance to the showers. Derek rounds the corner, telling Stiles to stay put.

Derek looks around the corner and notices Scott with his head against the tiled wall but no wolfish features. He signals to Stiles to go talk to him.

"Hey Scott."

"Leave." Scott is breathing heavily.

"Scott, I know about…" Scott turns quickly and runs forward, slamming Stiles into the wall. Before any more harm could come to Stiles, Derek is pulling Scott back. Scott is no match against Derek and was quickly pinned securely against the wall. The older wolf was growling making sure that the younger wolf knew his place.

"Derek, let's get him back to the house. Bau will want to meet him." Scott starts to struggle against Derek's hold, demanding that the other wolf let him go and that he would not be going anywhere with him. Derek bashes Scott's head against the wall, making the teen black out. "Seriously?"

"Did you really want to deal with a pissy wolf?"

"I do. Everyday." Derek growls as Stiles turns to exit the locker room. "Let's go sourwolf and get our new pet home."

I have no idea about how many chapters this story will write but I'm already planning the next few chapters, so let's see how it goes.