The moving truck had barely pulled away when Fei’s voice boomed from the kitchen. “She’s here! The guest of honor has arrived!”
Lin stood in the narrow hallway, a duffel bag slung over one shoulder and a cardboard box of books balanced on her hip. The apartment smelled like takeout noodles and fabric softener—Fei’s doing, probably. He always overdid it with the laundry.
Ye emerged first, wiping her hands on a dish towel. She was already grinning, arms outstretched. “Lin! Finally. I was starting to think Xu had locked you in his office.”
“He tried,” Lin said, dropping the box with a grateful thud. “But I’m a teacher. I’ve got negotiation skills.”
Fei lumbered out from behind Ye, his belly testing the buttons of his plaid shirt. “Negotiation skills? You’re going to need them living with us. Xu hogs the bathroom in the morning, and I eat the last egg every single time.”
“Only when Ye forgets to buy more,” Xu said from the living room doorway. He had his hands shoved into his pockets, shoulders slightly hunched. For a man who spent all day pitching software solutions, he looked remarkably unsteady.
Lin caught his eye and smiled. “Miss me?”
“Terrified,” he said, but the corner of his mouth twitched. He stepped forward to take the duffel bag from her shoulder, and their fingers brushed. His were cold.
Fei clapped his hands together. “Alright, tour time. Kitchen—you’ve seen it. Living room—you’re standing in it. Bathroom—don’t flush while someone’s in the shower. And your room…”
He gestured down the hall. Lin followed, Xu trailing behind with the bag. The door was open, revealing a small room with a single bed dressed in fresh sheets, a desk, and a window that faced the brick wall of the next building. But the wall that mattered was the one between this room and the main bedroom—Fei and Ye’s room. It was drywall, probably, and thin. Lin could already hear Fei’s heavy footsteps through it.
“Cozy,” she said.
“Soundproof-ish,” Ye added, reading her mind. “We’ve got a white noise machine if you need one.”
Lin laughed. “I’ll survive.”
That evening, they ordered hotpot delivery and ate around the coffee table, cross-legged on cushions. Fei told stories about the time Xu accidentally emailed a client a meme instead of a contract. Ye argued with Lin about the best way to organize a classroom library. Xu mostly listened, but he kept glancing at Lin, and once, under the table, his knee pressed against hers. She pressed back.
By eleven, the dishes were washed and the apartment had settled into the quiet hum of the refrigerator. Xu disappeared into the bedroom first, claiming an early meeting. Lin said goodnight to Fei and Ye and slipped into her new room.
The door clicked shut. The wall was a pale beige. She could hear Xu moving around on the other side—the creak of the bed, the slide of a zipper. She changed into her sleep shorts and a tank top, her heart beating a little faster than it should.
A soft knock came from the wall. Three taps.
She tapped back twice.
A moment later, her phone buzzed. Xu: *You okay?*
She typed back: *Nervous. Thin walls.*
Xu: *Very thin.*
She bit her lip. Then she heard his door open, and a second later, her own door swung inward. He stood there, barefoot, in a worn t-shirt and shorts, his hair messed from the pillow.
“Hi,” he whispered.
“Hi.”
He crossed the room in two steps, cupped her face, and kissed her. It was warm, familiar, and not nearly enough. She pulled him onto the bed.
Their movements were careful at first—muffled kisses, hands that tried not to make the mattress creak. But urgency won. The headboard knocked against the wall, a soft, rhythmic thud. Lin pressed her palm against the painted surface, trying to steady herself, but the sound seemed to bleed through anyway.
In the next room, Fei was scrolling through his phone, the screen light painting his face. Ye lay beside him, eyes open, staring at the ceiling. The thumping from the other side was faint but unmistakable.
Fei’s thumb stopped moving.
Ye didn’t say anything. She didn’t need to. She turned her head slightly, and in the dim light, she saw Fei’s expression—not annoyed, not amused. Alert. His nostrils flared just a little.
The headboard knocked again. A soft gasp, barely audible, came through the wall.
Ye’s hand found Fei’s arm under the blanket. Her fingers pressed into his skin. He looked at her, and she saw the question in his eyes. She gave a tiny shrug, the corner of her mouth lifting.
Neither of them spoke. They just lay there, still, listening. The sounds grew quicker, then stopped. A murmur, a laugh, silence.
Fei let out a slow breath. “Well,” he whispered.
Ye snorted, covering her mouth. “Don’t.”
“I’m not saying anything.”
“You’re thinking it.”
He turned off his phone and dropped it on the nightstand. In the darkness, his voice was low, almost teasing. “Guess the new neighbor settled in.”
Ye jabbed his ribs, but she was smiling. “Shut up.”
He didn’t shut up. But he didn’t say anything else either. They lay in the dark, side by side, the thin wall between them and their old friends, and something electric lingered in the air—a secret, a shared thrill neither of them would name.