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Long before anyone gave names to the things that moved through the dark, there were stories carried on migration winds.
In the mountain villages of southern Poland, people once spoke of jerzyk-ludzie.
Swift people.
Not witches.
Not druids.
Something older and quieter.
They were said to belong to the sky the way wolves belonged to the forest. They followed storm fronts, traveled impossible distances, and returned every year to the same rooftops no matter how far they had gone.
The ability passed through the mother's bloodline.
Sometimes it skipped generations.
Sometimes it never appeared at all.
But when it did, the child was born with a mark between their shoulder blades known as the Znak Ulotki.
The Mark of the Flyer.
It looked like a pair of folded wings pressed into the skin.
When the magic awakened, those wings became real.
Feathers dark as storm clouds. Long narrow bones built for speed. Wings that could cut through air faster than most birds could dream of flying.
The stories said swifts were wanderers.
Creatures of distance, storms, and open skies.
Yet even wanderers chose someone to return to.
And once a swift decided who it would come home to…
the sky would never take them too far away.
Stiles remembers the stories.
Not from books.
Not from dusty family records or hidden grimoires.
From his mom.
Claudia Stilinski used to tell them on quiet nights when the house was dark and the windows were open to the summer air. Sometimes while she tucked him into bed. Sometimes while they sat on the back porch watching birds carve sharp arcs across the evening sky.
She would tap the center of his back lightly, right between his shoulder blades.
"We're not monsters," she'd say.
Her voice was always gentle when she said it.
"We're travelers."
Seven-year-old Stiles would immediately twist around, trying to see the mark he knew was there.
"All the cool stuff is on my back," he complained once. "That's terrible design."
His mom laughed.
It was always his favorite sound.
"My family were swift shifters," she told him. "My mother. My grandfather. And others before them."
Stiles blinked.
"Grandpa could fly?"
"Oh yes," she said, smiling. "Your dziadek used to say the sky was the only place he ever felt truly quiet."
Stiles considered that very seriously.
"Did you fly too?"
Claudia's smile softened.
"When I was younger."
She leaned back in her chair, watching the birds wheel across the evening sky.
"The magic runs through our family," she explained. "It comes from the mother's side. Sometimes it skips people. Sometimes it disappears for a generation or two."
She tapped the center of his back again.
"And sometimes it shows up again when no one expects it."
Stiles's eyes went wide.
"Wait— I'm gonna get wings?!"
Claudia laughed quietly.
"Sweetheart, that mark means the sky already claimed you."
Stiles grinned immediately.
"Best power ever."
Claudia watched the birds for a moment longer before she spoke again.
"Swifts follow the wind," she said. "They travel incredible distances. Some spend months in the air without ever touching the ground."
"Do they get lost?"
"Sometimes."
Stiles frowned.
"But they always come back," she added.
"How?"
She reached over and ruffled his hair.
"Because even wanderers choose someone to return to."
Stiles wrinkled his nose.
"Like Dad?"
"Exactly like your dad."
"But you met Dad at a police barbecue."
Claudia laughed, bright and easy.
"Well," she said, "even swifts have to land sometimes."
And Stiles had believed every word of it.
He believed a lot of things back then.
He believed his mom would always be there to tell him stories.
He believed the world made sense.
He believed that someday he would grow up, spread his wings, and find the person he was meant to return to.
And for a while, some of it even came true.
The first time Stiles's wings appeared, he was twelve.
He woke up with an ache between his shoulder blades and feathers tangled in his bedsheets.
Which was not, in his opinion, a normal Tuesday.
He made it halfway across his room before the wings unfurled behind him with a rush of feathers and bone.
"Mom!"
Claudia appeared in the doorway a moment later.
She took one look at the wings stretched awkwardly behind him—
and smiled.
"Well," she said softly, stepping into the room, "there they are."
She showed him everything.
How to stretch the muscles so they didn't cramp.
How to fold the wings properly against his back.
How to clean and straighten feathers when they bent out of place.
Flying came later.
The first time he lifted off the ground it was only a few feet.
Stiles whooped so loudly he nearly lost his balance.
Claudia laughed from the yard below.
"Don't celebrate yet!" she called. "You still have to land."
He didn't land.
He crashed into the garage roof.
She helped him down afterward, still laughing as she smoothed the ruffled feathers along his wings.
Those evenings became theirs.
The two of them in the yard while the sky slowly darkened, Claudia talking him through wind currents and lift while Stiles practiced climbing higher and higher above the house.
His dad knew, of course.
John Stilinski had married a swift shifter. Wings were not exactly a surprise.
He'd sit on the back steps with a mug of coffee and watch them practice.
Sometimes he helped Claudia preen the feathers Stiles couldn't reach yet.
Sometimes he just watched his kid glide over the yard with a look that was equal parts amazement and parental terror.
Those were good years.
Then Claudia got sick.
The stories stopped.
The yard grew quiet.
The sky went empty.
After she was gone, Stiles didn't open his wings again for a long time.
The house felt different.
Too still.
Too quiet.
John stayed up late most nights after that.
Sometimes Stiles would come downstairs for water and find him sitting at the kitchen table with a glass of whiskey and the old leather journal Claudia had left behind.
Neither of them talked about it.
They didn't talk about the wings either.
Not for months.
Until one night when the house felt too heavy to breathe in.
Stiles slipped out the back door and walked into the yard.
The wings came out slowly, stiff from disuse.
Feathers rustled as they stretched for the first time in months.
For a moment he just stood there.
Then he jumped.
The flight was rough.
Rusty.
Too fast and too sharp, instincts fighting muscles that hadn't been used in far too long.
But once he climbed above the rooftops—
the world went quiet.
Wind rushed past his ears.
The town spread out below him in a patchwork of lights.
For a few minutes, he could almost pretend nothing had changed.
When he landed back in the yard, the porch light was on.
John was sitting on the back steps.
There was a glass beside him.
Stiles froze.
His wings folded halfway, unsure.
John looked up at him for a long moment.
Then he picked up the flashlight from the porch rail and stood.
"Your feathers are a mess," he said gruffly.
Stiles huffed out a shaky laugh.
"Yeah. I know."
John jerked his chin toward the steps.
"Sit."
Stiles sat.
John settled behind him the way Claudia used to, carefully straightening the feathers Stiles couldn't reach.
For a while the only sound was the quiet rustle of wings.
After a minute John cleared his throat.
"She always said the wind felt different up there," he said quietly.
Stiles stared out into the dark yard.
"Yeah," he said.
John fixed the last bent feather and smoothed it back into place.
"Your mom would've liked that landing."
Stiles swallowed.
"Yeah," he said again.
After that, Stiles flew sometimes.
Late at night.
Far from town.
But most of the time the wings stayed hidden.
Just like the mark between his shoulder blades.
Hiding it had started as habit.
Then it became routine.
By high school, it was automatic.
Layered shirts, even when the weather didn't call for it. Hoodies pulled on out of reflex. Anything that kept his back covered long enough that no one could look too closely.
Gym class had been the worst.
There was no good way to explain why he always changed in the bathroom instead of the locker room. No good way to explain why he kept his back to the wall, why he moved too fast, why he never stayed long enough for anyone to notice.
There had been close calls.
A flash of red between his shoulders when someone walked in too early. A question that almost made it out before Stiles talked over it, redirected it, buried it under noise and motion and sheer refusal to let anyone look too closely.
It got easier.
Or maybe he just got better at it.
Either way, the mark became something separate from him.
Something hidden.
Something controlled.
The wings followed.
Kept folded.
Kept quiet.
Kept out of sight.
Because Beacon Hills wasn't exactly the kind of town where something with wings could go unnoticed.
There were wolves in the woods.
Hunters in the shadows.
And a long list of supernatural disasters that made flying around the sky like a mythological bird seem like a terrible life choice.
So Stiles stopped thinking about the old stories.
Stopped thinking about the sky.
Stopped thinking about finding the person he was supposed to come home to.
Because surviving Beacon Hills was already complicated enough.
Still…
There had always been something about Derek Hale.
Stiles noticed it the first time he saw him.
Not the brooding.
Not the terrifying werewolf eyes.
Something else.
Something instinctive.
Like standing near the edge of a cliff and feeling the wind tug at your clothes.
Like the sky opening up overhead.
Stiles ignored that feeling.
Filed it away under things that were probably a bad idea.
Which was the same mental folder that already contained everything involving Derek Hale.
Unfortunately, Beacon Hills had a way of shoving Stiles directly into bad ideas.
Like tonight.
They'd been chasing a rogue through the preserve for nearly an hour before they finally caught up to it.
It was fast.
Angry.
And very clearly not interested in talking things out.
Stiles had been halfway through yelling something when the wolf spun, claws flashing in the moonlight.
Stiles's adrenaline-fueled spin saved him from being slashed across the ribs.
Instead it raked across his back before Derek, in full shift, slammed into the rogue and tore out its throat.
Stiles had paused long enough to make sure everyone was okay.
And to lie.
Then he'd climbed into his Jeep and headed home.
By the time faithful old Roscoe rattled into the driveway, the adrenaline was gone and Stiles's shirt was sticking to his skin.
Stiles killed the engine and sat there for a second, breathing hard.
His shirt was stuck to his back with warm blood.
"Fantastic," Stiles muttered to the empty jeep.
He pushed the door open and climbed out carefully, trying not to move his shoulders too much. The cut pulled unpleasantly with every step up to the driveway.
The porchlight flickered on automatically as he reached the door.
For a second he just stood there, breathing hard and hoping the bleeding wasn't as bad as it felt.
Then he shoved his key into the lock, twisted the knob and stumbled through the door.
The house was dark. Quiet.
His dad wouldn't be home for hours.
Probably for the better. His dad still wasn't thrilled he was part of a wolf pack fighting monsters.
Stiles dropped his keys on the counter and peeled off his jacket with a wince. The fabric had dried against the wound and pulled painfully when he tugged it free.
"Okay," he muttered. "Let's see how bad—"
The front door opened behind him.
Stiles froze.
He didn't even have to turn around.
"You followed me," he said tiredly.
Derek shut the door without answering.
"You're bleeding."
"Wow," Stiles said. "Nothing gets past you."
Derek stepped closer.
The wolf was still close to the surface—Stiles could hear it in the way Derek's breathing shifted as he caught the scent of blood.
"Turn around."
"Pass."
"Stiles."
"Derek."
A pause.
Then Derek said, flat and immovable, "Turn around."
Stiles sighed.
"Fine. But if you get weird about blood I'm charging you therapy fees."
He turned slowly.
Derek's eyes dropped immediately to the cut across his back.
Three shallow claw marks, already slowing to a bleed but messy enough to need cleaning.
Then Derek's gaze shifted.
Just slightly.
To the center of Stiles's back.
The birthmark there was a deep reddish color, flush with his skin.
Two curved shapes that almost looked like folded wings pressed against bone.
Derek frowned.
"That's new."
Stiles snorted.
"No it's not."
"You didn't have that before."
"Derek, I promise you I did not grow a decorative back tattoo in the last ten minutes."
Derek stepped closer anyway.
Stiles could practically hear the wolf side of him trying to figure out what it was smelling.
The mark had always carried a faint, strange warmth beneath the skin.
Not magic exactly.
Just… something different.
Derek reached for the first aid kit under the sink without taking his eyes off the cut.
"Sit."
"Wow," Stiles said. "Buy a guy dinner first."
"Stiles."
The tone left no room for argument.
Stiles rolled his eyes but dropped into one of the kitchen chairs.
Derek soaked a cloth with antiseptic and pressed it gently against the wound.
Stiles hissed.
"Oh yeah, that's the good stuff."
"Hold still."
"I am still."
"You're talking."
"That's not moving."
Derek ignored him and finished cleaning the cut before taping a bandage across the worst of it.
When he stepped back, his gaze flicked once more to the red mark between Stiles's shoulders.
"What is it?" he asked.
Stiles shrugged one shoulder carefully.
"Birthmark."
Derek didn't look convinced.
But he didn't push.
Stiles loved and hated Derek for that. Obviously he didn't want to explain anything to Derek, but the constant feeling of being watched—of Derek keeping one eye on him—was wearing him down.
Still, Stiles did what he always did.
He acted normal.
The next few days passed the way they usually did in Beacon Hills.
Which meant nothing actually stayed normal for long.
Scott texted about patrol routes.
Lydia sent three separate messages that made absolutely no sense until Stiles reread them twelve hours later and realized they were coordinates.
And Stiles spent most of his time trying to figure out what the hell had been attacking things near the preserve.
Which was how he ended up at the loft three nights later.
The big table near the windows had disappeared under stacks of books, his laptop, and several pages of notes written in increasingly frantic handwriting.
Stiles scrolled through another article and squinted at the screen.
"Okay," he muttered to himself. "So either we're dealing with something new, something extremely old, or something that should not physically exist."
Behind him Derek shifted where he was leaning against one of the metal pillars.
"That narrows it down."
Stiles snorted without looking up.
"Oh good. Sarcasm. Love that."
"What are you looking for?"
"Something that can leave claw marks like a wolf but doesn't behave like one," Stiles said, flipping open another book. "Peter says the scent doesn't match anything he's smelled before."
"That's helpful."
"No," Stiles agreed, "it's really not."
He kept typing for another minute before the silence behind him started to feel pointed.
Stiles glanced over his shoulder.
Derek was watching him.
"Okay," Stiles said slowly. "That's the stare."
"What stare."
"The one where you've been thinking about something for more than five minutes and are about to ruin my evening with it."
Derek didn't move.
"That mark on your back."
Stiles dropped his forehead onto the table.
"Oh my god."
"You said it was a birthmark."
"It is a birthmark."
"It's shaped like wings."
Stiles lifted his head just enough to glare at him.
"Derek."
"Yes."
"Sometimes when someone clearly doesn't want to answer a question, the socially acceptable response is to stop asking."
"You're hiding something."
Stiles leaned back in his chair and dragged a hand down his face.
For a long moment he didn't say anything.
He'd spent years pretending the mark was nothing.
Years making sure no one saw it.
Because once people knew, he knew the questions would never stop. Because wings were a lot harder to explain than sarcasm.
But Derek wasn't everyone. He was the one who settled him, who made him feel grounded.
Across the room Derek waited.
Patient.
Watching.
Stiles exhaled slowly.
This is a terrible idea.
"You know what?" he muttered.
Derek didn't move.
"Fine."
Stiles shoved the chair back and stood.
"You want to know so badly?"
He hesitated for half a second.
Then he grabbed the hem of his shirt and pulled it over his head, tossing it onto the couch and turned around.
The red birthmark sat between his shoulder blades.
Two curved shapes pressed into his skin.
Derek stepped closer automatically.
"It always looked like that?" he asked.
"Yep."
Derek frowned slightly.
"It looks like—"
"Wings," Stiles said.
He rolled his shoulders.
The air shifted.
Feathers pushed through the skin along the mark with a soft rustle.
Derek went completely still.
Two massive wings unfolded behind Stiles.
Deep brown feathers layered across the base, fading to darker charcoal along the long flight feathers.
They stretched wide in the open space of the loft.
Stiles flexed them once.
The feathers rustled quietly.
Then he glanced back over his shoulder.
"…So," he said. "Now you know."
Derek didn't answer right away.
His gaze tracked slowly across the span of the wings, taking in the layering of feathers, the strength of the joints where they met Stiles's back, the long charcoal flight feathers that shifted softly in the loft's air.
"You have wings," Derek said finally.
"Yeah."
A quiet beat passed.
Then Derek's eyes flicked to where the red mark had been between Stiles's shoulder blades where the feathers emerged.
"That mark…"
"It's where they start."
Silence settled across the loft.
Then Derek asked, quieter this time,
"What are you?"
Stiles shifted his weight, the wings adjusting slightly with a soft rustle.
"A swift," he said.
Derek's brow furrowed.
"…I thought they were extinct."
Stiles huffed a quiet breath.
"Not extinct," he said. "Just rare."
The wings flexed once behind him, feathers whispering against each other.
"Like, really rare."
Derek stepped a little closer, eyes still fixed on them.
"I've never seen one."
"Most people haven't," Stiles said dryly. "That's kinda the point."
Derek's gaze moved back to the base of the wings.
To the feathers near the joint.
A few of them were slightly bent out of alignment.
"You're injured," Derek said.
Stiles glanced back awkwardly.
"Oh. Yeah. That's from the rogue earlier this week."
Derek reached out before he seemed to consciously decide to.
His hand stopped just short of the feathers.
Stiles went very still.
"…You can touch them," he said after a second.
Derek hesitated.
Then his fingers brushed carefully along one of the bent feathers near the base of the wing.
Stiles inhaled sharply.
Derek pulled his hand away like he'd been burned. "I'm sorry."
"No. It's— it's okay, just haven't had someone besides my parents help me preen. I forgot what it felt like."
"How do I help?" Derek asked.
Stiles scrubbed a hand over his face.
He grabbed the chair he'd been sitting in and dropped onto it backward, straddling it. His arms folded over the top of the backrest as he leaned into it, head tipping forward slightly.
The wings shifted behind him, settling with the change in position.
"This is easier," he said. "You can actually reach from there."
He adjusted one shoulder, angling the wing.
"Uh. Okay, so—" He shifted awkwardly, wings twitching before settling again. "So if you see any bent ones… you kind of… lift them, just a little, and then smooth them back down. Not too hard. I'll, uh, let you know if it hurts."
Derek nodded once. Stepping in closer.
His hand hovered briefly at the base of the wing, close enough to feel the heat of Stiles's skin through the feathers, like he was waiting for some sign.
Stiles didn't move away.
So Derek touched him.
He slid his fingers under one of the bent feathers, exactly where Stiles had indicated, lifting it just enough to realign it—
Stiles inhaled again, sharper, but it melted quickly into a long exhale.
"…yeah," he murmured. "That's right."
Derek eased the feather back into place, smoothing it down with a careful pass of his fingers.
It settled.
So did Stiles.
Derek moved to the next.
This time his hand didn't hesitate.
Lift. Smooth.
The rhythm came easy.
Like something instinctive had clicked into place.
Stiles's shoulders dropped another inch.
The tightness in his posture unwound, slow and visible, each touch easing something deeper than just the feathers out of alignment.
"…you're good at this," Stiles said quietly, voice drifting.
Derek didn't answer.
He was watching the way the feathers shifted under his hand. The way they responded. The way Stiles did.
Another bent one, closer to the joint.
Derek slowed, more careful here, sliding his fingers beneath it and guiding it back—
Stiles's breath caught.
Not sharp this time.
Soft.
His head tipped forward slightly.
"Still okay?" Derek asked, low.
"Yeah," Stiles whispered. "Just— sensitive there."
Derek adjusted without pulling away, gentler now, smoothing the feather down with the lightest pressure.
Stiles exhaled again.
Long.
Steady.
His wings shifted.
Opened just a fraction.
Not defensive.
Not startled.
Just… making room.
Derek's hand followed without thinking.
He kept going.
Feather by feather.
Not rushing.
Not stopping when the obvious ones were fixed.
His fingers moved along the line of the wing, smoothing the smaller disruptions, the barely-noticeable misalignments.
Caring.
Stiles leaned into it.
Subtle.
Unthinking.
Like his body had already decided this was safe.
Derek stepped closer to keep the contact easy, his movements quiet, sure.
The wings settled under his hands.
Fully.
Loose.
Resting.
By the time he reached the end, there was nothing left to fix.
Still—
Derek's hand lingered.
He smoothed one more pass along the curve of the wing, slow and careful, just to make sure everything lay right.
Stiles let out a soft breath.
"…okay," he said, barely above a whisper. "Yeah. That's—"
He didn't finish.
Didn't need to.
Derek's hand stilled, resting lightly against the feathers.
Stiles didn't move away.
Didn't pull his wings in.
For a moment, they just stayed there.
Then, slowly, Stiles's wings folded back in, careful and quiet, like he didn't want to disturb anything that had settled between them.
"…thank you," he said.
Derek nodded, just once.
"You couldn't reach."
Stiles huffed faintly, but there was no real bite to it.
"Still."
The word softened as it left him.
Derek's hand lingered at the edge of his wings, not quite touching now, like he wasn't sure if he should move again.
Stiles didn't pull away.
Didn't fold his wings back in.
He went quiet, breath slowing into something calmer than it had been a moment ago.
"…my mom used to say," he said, voice low, "that even swifts have to land sometimes."
"She said I'd find someone," he went on, softer now. "Eventually."
Derek's hand shifted, settling back against the feathers without hesitation this time.
Stiles's breath caught—
then eased.
The tension left him in a slow exhale, shoulders dropping, his wings relaxing and drooping.
"…I think this is what she meant," Stiles said quietly.
Derek didn't answer right away.
His hand stayed where it was, steady at the base of Stiles's wings, like he'd decided that much and wasn't revisiting it.
Then—
"Wolves have a word for that," he said.
Stiles frowned slightly, glancing back over his shoulder. "For what, landing? Pretty sure that's just— gravity, man."
Derek rolled his eyes. "For feeling tethered. We call it mates."
Stiles went still.
Derek's hand didn't move.
"It's instinct," Derek added, quieter now. "When we see our mate, we know."
For a second, Stiles just stared at him.
Then he pushed up out of the chair, too fast to play it off. His wings flared instinctively before he pulled them back in, feathers shivering as they disappeared.
He swallowed.
"You…feel it too?"
Derek didn't answer right away.
The space between them felt different now—too aware, too sharp.
"Yes," he said.
Stiles swallowed.
"Okay," he said, softer, like he was testing the shape of it.
He was still standing too close to where he'd been sitting, like he hadn't decided what to do with himself yet. His hands flexed once at his sides, like he almost reached for something and stopped.
Neither of them moved.
Then Derek stepped forward.
Slow. Deliberate.
Giving Stiles time to pull back if he wanted to.
He didn't.
Stiles held his ground, breath catching just slightly, eyes flicking once to Derek's mouth before he stilled again.
That was all the permission Derek needed.
He reached up, fingers brushing lightly along Stiles's jaw—careful, like he was still aware this could break if he pushed too hard.
Stiles leaned into it.
Just enough.
"Okay," he murmured.
And Derek kissed him.
Soft.
Steady.
Not rushed, not overwhelming—just a quiet press of lips that felt like something settling into place rather than sparking into chaos.
Stiles made a small, surprised sound, one hand lifting halfway before catching on Derek's shirt, holding there like an anchor.
It didn't last long.
Long enough.
Derek pulled back first, just slightly, like he didn't want to risk tipping it into something bigger before Stiles was ready.
Stiles blinked at him, a little wide-eyed, then huffed out a quiet breath that almost turned into a laugh.
"Okay," he said again.
Derek's mouth twitched.
"Research," he said, a little rougher now.
"Right," Stiles agreed immediately.
He turned, grabbing his laptop off the table, dragging it closer like that had always been the plan.
Like they hadn't just—
"Okay, so," Stiles muttered, already scrolling. "We've got… claws, fast movement, possible territorial pattern—cool, great, love that for us."
Derek stayed where he was for a second.
Then stepped in closer again—not touching this time, just there, solid at Stiles's side.
Close enough to matter.
Stiles didn't look at him.
But he shifted, just slightly, until their shoulders brushed.
And didn't move away.
