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Derek first noticed the pattern on a Thursday night in July, when the city was sweating through its bricks and the windows were open because nobody in their building had air-conditioning worth bragging about. Three knocks came through the wall. Not loud. Not demanding. Just three careful taps against the plaster between Derek’s apartment and the one next door.
Derek looked up from the book he wasn’t reading.
A moment later, Stiles Stilinski’s voice drifted faintly through the wall. “You alive over there, Hale?”
Derek stared at the wall like it had personally betrayed him. “No,” he called back.
There was a pause. Then laughter, bright and quick and entirely too easy to like. “Good,” Stiles said. “Then you won’t mind if I borrow your sugar.”
Derek closed his book and stood. He had lived beside Stiles for seven months. Long enough to know that Stiles worked odd hours at a newspaper, owned too many plaid shirts, talked with his hands even when no one was watching, and had a father back in California he called every Sunday from the payphone downstairs.
Long enough to know Stiles never borrowed anything without bringing something back.
Sugar became coffee. Coffee became soup when Derek caught a winter cold. Soup became Derek fixing Stiles’s kitchen cabinet after it tried to murder him at two in the morning. The cabinet had not tried anything, according to Derek, but Stiles insisted the door had intent.
By summer, they had developed a rhythm. Three knocks meant, Are you awake? Two knocks meant, You left something at my place. One knock meant, Come over if you want.
Derek never asked when they had made those rules. He only knew they existed.
New York was loud enough that silence had to be chosen carefully. Sirens moved down the avenue at all hours. Radios played through thin floors. Couples fought. Babies cried. Somewhere upstairs, someone practiced trumpet with more enthusiasm than skill.
But between Derek and Stiles, there was the wall. The wall was safer than the hallway.
In the hallway, Mrs. Alvarez from 3B could see too much. Mr. Rosetti from 2A smoked outside his door and watched everyone like he was collecting evidence. The landlord appeared without warning and had opinions about “bachelors” who spent too much time in each other’s apartments.
It wasn’t that Derek was ashamed. He knew Stiles wasn’t either. But there was a difference between refusing to hide and inviting the world to put its hands on something private.
So they didn’t flaunt it. They stood close in kitchens and apart in stairwells. They smiled with their eyes when other people were watching. They let their hands brush only when they were certain no one would notice. And sometimes, late at night, Stiles knocked three times on the wall.
On a Saturday in August, Derek came home from the garage with grease on his forearms and exhaustion sitting heavy between his shoulders. He found a paper bag hanging from his doorknob.
Inside were two oranges, a sandwich wrapped in wax paper, and a note.
You look like you forgot food exists. Don’t make me come over there. —S
Derek should have smiled less than he did. He took the bag inside, washed his hands, and ate half the sandwich standing at the counter.
Then he went to the wall and knocked once.
The answering sound was almost immediate: Stiles’s door opening, feet crossing the hall, knuckles against Derek’s door.
Derek let him in. Stiles was barefoot, wearing faded jeans and a yellow T-shirt that had seen better decades. His hair was a mess, and his mouth was already moving.
“I was going to give you exactly twenty minutes before I staged an intervention.”
“I ate.”
“Half?”
Derek glanced at the sandwich.
Stiles pointed. “I knew it.”
“You want the other half?”
“I want you to understand that man cannot live on black coffee and stubbornness alone.”
Derek leaned against the counter. “You sound very sure.”
“I’m a journalist. I investigate things.”
“You write obituaries.”
“I investigate dead people.”
Derek laughed before he could stop himself. Stiles went still for half a second, as if Derek’s laugh was a thing he wanted to keep. Then his expression softened. There it was again, that quiet shift between them. The room turning smaller. The air changing.
Stiles stepped closer. Derek let him.
Outside, someone shouted from the sidewalk. A taxi horn blared. The city kept being the city, indifferent and alive.
Stiles looked down at Derek’s hand resting on the counter. His fingers twitched, then stilled.
Derek understood the hesitation. He understood wanting. He understood how dangerous it felt to want something good after teaching yourself not to need much. So he turned his hand palm-up.
Stiles looked at him then. “Yeah?” he asked softly.
Derek nodded. Stiles put his hand in Derek’s.
It wasn’t dramatic. No music swelled. No curtain lifted. It was only Stiles’s warm fingers sliding into Derek’s, their palms fitting together in the yellow kitchen light. Derek held on. Stiles smiled like he was trying not to grin.
“You know,” Stiles said, voice low, “this is exactly how scandals start.”
Derek’s thumb brushed his knuckles. “With sandwiches?”
“With neighbors. Sandwiches. Suspicious knocking.”
“Suspicious?”
“Highly.”
Derek tugged him closer. Stiles came willingly.
Their first kiss happened in Derek’s kitchen, with half a sandwich abandoned on the counter and the radio in the next apartment playing something cheerful and tinny.
Stiles kissed like he talked, all restless energy at first, then startling focus once he realized Derek wasn’t going anywhere. Derek cupped the back of his neck. Stiles made a small sound against his mouth, and Derek felt it everywhere.
Afterward, Stiles rested his forehead against Derek’s. “Okay,” Stiles whispered. “That was—”
“Yeah.”
“Very articulate, Hale.”
“You’re the writer.”
Stiles smiled. “I might need a minute.”
Derek brushed his thumb along Stiles’s jaw. “Take two.”
Stiles kissed him again.
After that, the knocking changed. Three knocks still meant, Are you awake? Two still meant, You forgot something. One still meant, Come over if you want.
But now there were other meanings too.
Three knocks on a rainy afternoon meant, I miss you and I’m pretending this is casual. Two knocks after midnight meant, I had a bad day and don’t want to say it out loud. One knock in the morning meant, I made coffee and saved you the first cup.
Derek learned Stiles’s moods through plaster and timing. Stiles learned Derek’s silences the same way.
In September, the city cooled. Derek bought a second mug without discussing it. Stiles left a toothbrush in Derek’s bathroom and pretended it was an accident.
They were careful in public, but not cold. At the corner deli, Stiles bumped Derek’s shoulder while arguing about pastrami. On the subway, Derek stood close enough to keep strangers from pressing into Stiles. In the laundromat, Stiles folded Derek’s shirts with a seriousness Derek found deeply unnecessary and secretly sweet.
They did not hold hands outside. Not yet.
But one evening, as they walked back from the market under a sky turning violet above the rooftops, Stiles hooked his pinky around Derek’s for exactly three seconds.
Derek looked at him.
Stiles looked straight ahead. “Don’t make a thing out of it.”
“I wasn’t.”
“You were thinking about making a thing.”
“I was thinking you’re bad at being subtle.”
Stiles snorted. “And yet you like me.”
Derek’s answer came easily. “Yeah.”
Stiles stopped walking. The grocery bag rustled between them. A woman passed with a small dog in a knitted sweater. Somewhere nearby, disco poured out of an open bar door. Stiles’s face was soft and stunned. Derek wondered if he should take it back, not because it wasn’t true, but because truth could be sharp when handed over too quickly.
Then Stiles smiled. “Yeah?” he asked.
Derek stepped closer, not touching, but close enough. “Yeah.”
Stiles swallowed. “I like you too.”
“I know.”
“Oh, now you’re smug?”
“A little.”
Stiles shook his head, but he was smiling when they started walking again. That night, Derek heard three knocks through the wall. He knocked back three times. Then Stiles knocked once. Derek opened his door before Stiles could knock on it.
Stiles stood in the hall, hair damp from a shower, wearing an old sweater with a hole near the cuff.
“Hi,” he said.
Derek looked past him. The hallway was empty. “Hi.”
“I was thinking,” Stiles said.
“That’s usually trouble.”
“Rude. Accurate, but rude.”
Derek leaned against the doorway.
Stiles’s smile faded into something gentler. “I was thinking maybe we stop pretending I’m only coming over to borrow sugar.”
Derek’s chest tightened. Stiles kept going before Derek could answer. “Not with everyone. Not with the whole building. I’m not saying we need a parade down the stairwell.”
“Stiles.”
“But maybe with us,” Stiles said. “Maybe we can stop acting like this is temporary.”
Derek looked at him for a long moment. He thought about all the careful spaces they had built. The wall. The knocks. The coded language that had given them somewhere to begin. Then he reached out and took Stiles’s hand. In the hallway. Stiles looked down at their joined hands and went quiet.
Derek squeezed once. “It’s not temporary.”
Stiles blinked fast. “Okay.”
“Okay?”
“Yeah.” Stiles laughed softly. “Okay.”
A door opened upstairs. Footsteps creaked. Someone’s radio played faintly behind a closed door. Derek didn’t let go. Stiles stepped closer, and Derek drew him into the apartment.
Later, long after the lights were off and the city had settled into its restless midnight hum, Stiles lay beside Derek with one foot hooked around his ankle.
“You know,” Stiles murmured, “we could’ve just talked like normal people.”
Derek’s arm tightened around him. “You’re not normal people.”
“Fair.”
“I liked the knocks.”
Stiles turned his face against Derek’s shoulder. “Yeah?”
Derek kissed his hair. “They brought you to my door.”
For once, Stiles didn’t answer right away. Then his fingers tapped lightly against Derek’s chest. One. Two. Three. Derek smiled in the dark and covered Stiles’s hand with his own.
Outside, New York kept shining, loud and bright and impossible. Inside, behind a closed door, Derek had everything he wanted within reach. And for the first time in a long time, he did not need to knock.
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END.