Chapter Text
Chapter 1: Between Them
Renjun perched on the edge of the couch, a book in his hands he wasn’t really reading. The weight of it in his lap was enough to keep his hands occupied while his mind wandered elsewhere. He had told himself he would focus on the words, on the story, on anything but the way Jaemin and Jeno moved together. But it was impossible. The apartment smelled faintly of Jeno’s cologne and Jaemin’s shampoo, a mix that made his chest tighten in ways he couldn’t quite name.
They were sprawled across the cushions, intertwined as though they belonged to each other. Laughs spilled freely, quiet touches punctuated their jokes, and Renjun felt that familiar pang of being slightly outside, slightly apart. He should have been happy. He loved seeing them like this. And yet, even as his lips curled into a small, involuntary smile, his chest ached with a quiet, insistent longing.
Renjun cleared his throat softly. “Hey,” he said, trying to sound casual.
Jeno looked up first, a smile curving his lips. “Hey. You’re awfully quiet today.”
“I’m… fine,” Renjun said, forcing a small grin. His voice sounded hollow, even to his own ears. Jeno raised an eyebrow, suspicious, but didn’t press. Instead, he leaned back, letting the moment hang in the air.
Jaemin stretched, nudging him lightly with his elbow. “You’re not hiding over there, are you? Come sit closer.”
Renjun hesitated. The couch felt too small, too intimate. They had years of comfort together, a rhythm he wasn’t yet part of. But Jaemin’s hand lingered near him, warm and inviting, and slowly, carefully, he shifted closer, leaving a polite but noticeable space between himself and the pair.
“You okay?” Jaemin asked softly, brushing a stray strand of hair from Renjun’s face. Such a small gesture, but it made his heart flutter in ways he couldn’t quite name.
“I’m okay,” Renjun repeated. But he wasn’t. Loving them both felt like walking a tightrope — exhilaration and fear rolled together in equal measure. Their hands brushed occasionally, laughter shared only between the two of them, and Renjun couldn’t help the hollow ache it left inside him. He wanted to be part of it, desperately, but he didn’t know how to step into a dance that had already begun.
Jeno noticed the tension in his shoulders and nudged him lightly with his knee. “Hey… you don’t have to just watch. Sit closer. You belong here too, you know.”
Renjun swallowed hard. The lump in his throat made words impossible. Slowly, cautiously, he moved even closer. Jaemin draped an arm across his shoulders, a comforting weight, and for the first time in what felt like forever, Renjun allowed himself to exhale.
The ache didn’t vanish entirely. He was still the quiet third, still learning how to exist between two people whose love had years of momentum. But the edges softened. They hadn’t forgotten him. They had made space, even if imperfectly, and for now, that was enough.
Jaemin leaned in toward Jeno, whispering something that made them both laugh. Renjun watched, the ache in his chest mingling with a warmth he couldn’t ignore. He wanted to reach out, to close the distance, but he hesitated, savoring the pull of anticipation.
“Renjun,” Jaemin said quietly, catching his gaze. “You’re not just… watching us. You’re here with us, okay?”
Renjun’s chest warmed at the words. No dramatic confession, no bold gesture — just acknowledgment. Sometimes, acknowledgment was enough to begin to belong.
“I… I know,” he murmured, unsure why it felt so vulnerable to say.
Jeno leaned closer, brushing a hand along Renjun’s arm. “We mean it. You’re part of this. All of this.”
Renjun nodded, letting the words sink in. He wanted to believe them, to let himself fully feel it. There was still a hollow spot inside, traces of nights spent waiting for attention, for reassurance, for a sign that he wasn’t the third. But those edges were softening, day by day, touch by touch.
He shifted slightly, settling against them. Jaemin’s arm rested across his shoulders, Jeno’s fingers brushed his arm every so often. They laughed together, but now, Renjun wasn’t just an observer. He joined in, offered his own teasing comments, smiled at jokes he didn’t fully understand. For the first time in a long while, he felt seen. Not just tolerated. Not just allowed. Truly acknowledged.
Still, there was a flutter in his stomach when Jaemin tilted his head to whisper to Jeno, a laugh escaping them both, and Renjun realized he wanted to cross the invisible line. The desire was there, pulsing quietly — not urgent yet, but undeniable. He wanted to be closer, to feel warmth pressed fully against him, to be tangled up in the rhythm of their intimacy.
He could feel it in the small things: Jeno brushing a hand against his forearm, Jaemin’s thumb tracing a slow line across his knuckles, the way their gazes occasionally lingered on him with something unsaid. Every touch, every glance was electric, building tension he didn’t quite know how to release.
“Hey,” Jeno said softly, breaking into his thoughts. “Want some tea? Or do you want to stay like this for a bit?”
Renjun blinked, startled. “Tea… yeah, tea’s good.”
“Good,” Jaemin said, brushing a thumb lightly across Renjun’s hand as he stood. “I’ll make it. Jeno, you grab the mugs.”
Renjun stayed where he was, watching them move together, laughing as they coordinated. He felt the ache of being the outsider, the pang of longing, but also something new: anticipation. The warmth pooling in his chest, the pull of desire, the awareness of his body against theirs — it all promised something just out of reach.
He shifted slightly closer, letting his knee brush against Jeno’s, feeling the quiet heat of proximity. Jaemin glanced back at him, a faint, teasing smile tugging at his lips. Renjun’s pulse quickened. The tension coiled inside him, a delicious ache, a mix of longing and anticipation, waiting for the moment they all crossed the line.
The tea sat forgotten on the table. Laughter softened to murmurs. Their bodies leaned into each other naturally, effortlessly, and Renjun, caught between observing and joining, knew one thing with sudden clarity: the moment they let him fully in — when the boundaries of watching and participating blurred — everything would change.
And he couldn’t wait.