ooh ooh could you write for p1h where the reader is dating one of them but another member is her brother so they gotta be sneaky and imagine if they found out hehe🤭
pairing: P1Harmonyx reader
warnings: secret relationship, reader being Piwons sister, some suggestive stuff, fluff, forbidden Love
disclaimer: not my pic!
Keeho (Theos Sister)
The dorm felt louder than usual, even though nothing special was happening. Controllers clicked, someone yelled at the screen, and a truly stupid movie played in the background, the kind no one actually watched. You sat on the couch next to Theo, your shoulder barely brushing his, legs tucked in comfortably like you had done a hundred times before.
Keeho sat on the floor right in front of you, back against the couch, fully focused on the game. Too focused. You watched the way his shoulders moved when he laughed, how his head tipped back when someone lost badly. Every now and then, he glanced over his shoulder, quick and careful, just enough to check if you were looking.
You were.
You shifted slightly and let your foot reach out, brushing the small of his back. Just a touch. Barely there. Keeho stiffened like he had been shocked, then adjusted his position, pretending nothing happened. You hid your smile by leaning back into the couch.
A minute later, you did it again. This time your foot lingered, toes pressing lightly against him. Keeho inhaled sharply and laughed too loud at something that was not funny. He paused the game and stood up fast.
“I’m gonna grab a drink,” he said, casual but rushed.
No one questioned it. You counted in your head, heart thumping. One minute. Maybe a little more. When you stood up, Theo barely looked at you.
“Kitchen,” you said, and he hummed in response.
Keeho stood by the counter when you entered, hands braced on the edge, head lowered. When he looked up and saw you, he broke into a nervous laugh.
“Oh god, you...,” he said quietly, pointing at you like you were the problem. “You are fucking dangerous, you know that right?”
You chuckled and stepped closer, not answering with words. You kissed him before he could say anything else. Keeho froze for half a second, then melted into it, hands finding your waist like they had been waiting there all evening.
He pulled back just enough to whisper, “Theo’s literally right there.”
You rolled your eyes and grabbed the collar of his hoodie, pulling him back in. The kiss deepened, all pent-up tension and stolen glances finally crashing together. Keeho kissed you like he had been holding his breath all night. His hands tightened, careful but desperate, like he wanted more but knew better.
“Fuck, he's gonna kill me,” he murmured against your lips, half laughing, half serious.
“Relax,” you whispered back.
You were still kissing when footsteps echoed down the hall. Panic hit instantly. Keeho jumped back like the counter was on fire, grabbing a random cup and filling it with water at record speed. You turned away, pretending to inspect the fridge like it held the secrets of the universe.
One of the members passed by without stopping. The moment the steps faded, Keeho exhaled hard and leaned his forehead against the cabinet.
“I swear,” he said softly, looking at you with wide, fond eyes, “one day we’re getting caught.”
You smiled, stepped close, and brushed your fingers against his hand. Then you walked back to the living room like nothing had happened, heart racing, lips still warm, leaving Keeho behind with his water and a grin he could not get rid of.
Theo (Jiungs sister)
The club buzzed like a living thing. Lights pulsed, music thumped deep in your chest, and Jiung’s birthday banner hung crooked above the booth like it had already given up. Everyone was loud, laughing, drinking, pressed together in celebration.
You arrived late.
Theo noticed instantly. He always did. But what made his stomach drop was not just you. It was the guy beside you, hand resting casually at your lower back, leaning in to hear you over the music. Too comfortable. Too familiar.
Theo smiled when you greeted everyone. He always smiled. It was automatic. Inside, his thoughts tangled like wires.
You looked good. Effortlessly so. And worse, you looked relaxed. Happy. Like you belonged exactly where you were, exactly with who you were standing next to.
Theo tried to focus on Jiung, on the birthday shots, on Keeho yelling something incoherent. But his eyes kept drifting back to you. To the way your date leaned close to speak into your ear. To the way you laughed and touched his arm.
It took him nearly half an hour to find a moment. When your date went to the bar and the others got pulled into a conversation, Theo stepped closer.
“Hey,” he said, voice calm, like this was nothing.
You turned, surprised, then smiled politely. That smile hurt more than anything.
“Who’s the guy you came with?” he asked, trying to sound casual and failing just enough.
You tilted your head, eyes wide with fake innocence. “A friend.”
Theo raised an eyebrow. “A friend.”
You nodded. “A date, technically.”
He let out a quiet chuckle before he could stop himself. “Didn’t expect you to move on that fast.”
You leaned back slightly, studying him. “That’s funny,” you said. “Last time we talked, you told me we couldn’t be together. Because I’m Jiung’s sister. Remember?”
The words landed clean and sharp.
Theo swallowed. “Yeah...I remember.”
You grinned then. Triumphant. Dangerous. “So,” you asked lightly, “are you like....jealous?"
Theo took a deep breath. He glanced past you to where Jiung laughed with Soul, completely unaware. Then he looked back at you, eyes softer, conflicted.
“I don’t get to be,” he said quietly.
Your smile faded just a bit. You sighed, picked up your drink, and straightened. “Right. Well, I should get back then”
As you stepped past him, your hand brushed his chest. Not an accident. Just enough contact to send heat straight through him. Theo sucked in a breath before he could stop himself.
You didn’t look back.
Theo stood there, unmoving, watching you return to your date. Watching the way you leaned in, the way you smiled again, the way your body language shifted back into something intimate.
His jaw tightened.
This was not over. Not even close.
Jiung (Intaks Sister)
The club wrapped around you in heat and sound. Lights cut through the dark, music rolling through your body like a second heartbeat. You were on the dance floor, moving with the rhythm, hips swaying slow and deliberate. You knew exactly what you were doing.
Jiung watched from a distance.
He stayed near the table with the others, drink untouched, posture controlled. Anyone else would have thought he was just observing the crowd. You knew better. Every time you turned, every time you let your head fall back or your hips roll a little deeper into the beat, his eyes followed.
You caught his gaze and held it.
You smiled.
Jiung looked away immediately, jaw tightening. His fingers curled around his glass like it was the only thing keeping him grounded. He told himself to breathe. To be normal. To remember that you were Intak’s sister. His friend’s sister. A line he had promised himself not to cross.
But you crossed it for him, again and again, without ever touching him.
You danced like you were alone, but your eyes kept finding his. You spun slowly, letting the lights catch you just right, letting the music guide you. You saw the moment it became too much. Jiung stood abruptly, chair scraping back, and without a word he turned and pushed through the crowd.
You stopped dancing, confusion flickering through you. After a second, you followed.
Outside, the night air was cool and sharp, a relief after the suffocating heat inside. Jiung stood a few steps away from the entrance, hands on his hips, head tipped back as he stared at the sky like it might offer answers.
“Hey, you okay?” you asked softly.
He laughed, short and dry, and looked at you. “No,” he said honestly. “I’m really not.”
You stepped closer. “Oh?”
Jiung ran a hand through his hair. “How do you think I’m supposed to be okay,” he said, voice low, “when you move like that? When you look at me like that?”
You smiled, slow and warm.
His expression shifted, conflict written all over it. “This is hard,” he continued. “Intak is my friend. I care about him. I don’t want to mess things up. I don’t want to get into trouble.”
“I didn’t ask you to,” you said gently.
Jiung inhaled, steadying himself. “But...” he started, then stopped.
You waited. “But what?”
He didn’t answer. Instead, he stepped forward suddenly, hands coming up to grip your jacket, pulling you into him with a force that stole your breath. His lips crashed against yours, all restraint gone. The kiss was deep and urgent, like everything he had been holding back finally snapped.
You kissed him back without hesitation.
Jiung pressed you closer, one hand firm at your waist, the other sliding up your back. His kiss was passionate, desperate, nothing like his calm exterior. He kissed you like he had already lost the battle and decided to surrender completely.
When he finally pulled back, his forehead rested against yours, breath uneven.
“This,” he murmured, “is exactly the problem.”
You smiled, fingers curling into his shirt, knowing full well neither of you wanted to stop.
Intak (Soul's Sister)
Japan at night felt softer than expected. Neon lights reflected off wet pavement, the air cool and buzzing with leftover laughter. The others were gone in a tangle of giggles and bad directions, drunk and happy and completely useless. Somehow, you and Intak ended up walking alone.
He was the only sober one. You teased him about it, bumping his shoulder as you walked.
“Someone had to be responsible,” he said, smiling down at you. “You’d all get lost without me.”
You laughed, a little louder than necessary. The city hummed around you, footsteps syncing, conversation easy. Too easy. Every glance lingered a second too long. Every joke landed closer than it should have.
By the time you reached your apartment building, the tension had wrapped tight between you, like a string pulled to its limit.
You stopped at your door and turned to face him. “You know,” you said casually, keys dangling from your fingers, “I always liked you the best.”
Intak blinked. “Me?”
You nodded, amused by his surprise. “Shota used to talk about you all the time. About the group, about practice, about tour. He always said you were a really good friend.”
His ears turned pink instantly. “He did?”
“Yeah,” you said softly. “And I thought the same.”
Intak scratched the back of his neck, suddenly shy. “You’re… kind of amazing too, you know that?”
The hallway fell quiet. No music. No laughter. Just the sound of your breathing and the way his eyes searched your face like he was memorizing it.
Neither of you moved. Then you both did.
Intak stepped forward at the same time you did, hands finding each other clumsily before his lips met yours. The kiss was warm and eager, like it had been waiting for permission. You backed into the door, keys forgotten, his hands bracing on either side of you as the kiss deepened.
It was messy. Laughing between kisses. Soft sighs. The kind of making out that felt like relief.
When you finally pulled back, breathless, you smiled up at him. “Do you want to come inside?”
Intak froze.
He leaned his forehead against yours, eyes closed. “That’s… not a good idea.”
You nodded immediately. “Yeah. You’re right.”
You kissed him again anyway. Slower this time. Softer. Like agreeing without wanting to.
He pulled back with a quiet groan. “We really shouldn’t.”
“I know.”
Another kiss. Short. Dangerous.
Intak laughed under his breath, stepping back like he was trying to save himself. He ran a hand through his hair, pacing once in the narrow hallway. “Soul would kill me.”
You shrugged lightly. “Probably.”
He stopped, looked at you again, then at the door. His jaw tightened, decision written all over his face.
“Fuck it,” he muttered.
Before you could react, he stepped inside with you, the door clicking shut behind him.
Soul (Jongseobs Sister)
The dorm was quiet in the way only late nights could manage. Lights were off, hallways dark, the air still carrying traces of laughter from earlier. You had stayed over because it was too late to go home and everyone had agreed it made sense. Jongseob had insisted you take his bed. He said it like it was nothing.
He took the couch.
You lay awake longer than you meant to, staring at the ceiling, listening to the low hum of the building and the faint sounds of breathing through the walls. Your thoughts kept circling the same place. The same person.
Soul.
You slipped out of the bed slowly, careful not to make a sound. The floor felt cold under your feet as you padded down the hall. His door was closed, but not locked. You eased it open and stepped inside, heart pounding like it might wake the whole dorm by itself.
Soul lay on his side, hair messy against the pillow, blanket pulled up to his shoulders. He looked peaceful. You hesitated for just a second, then climbed into the bed with him, careful and quiet. The mattress dipped and he stirred slightly.
You leaned in and kissed him.
Soul woke instantly. His eyes opened and focused on you, confusion flickering for half a second before melting into a soft smile. Then concern followed just as quickly.
“Y/n” he whispered, voice low and breathy. “What are you doing?”
You chuckled quietly and tugged the blanket up, pulling it over both of you until the world shrank to whispers and warmth. “I couldn’t wait,” you murmured. “I had to pretend all day. I hated it.”
Soul’s hand came up to your arm, fingers gentle but sure. He pulled you closer, forehead resting against yours. “I know,” he whispered back. “Me too.”
His smile was small but full, like it was meant just for you. Still, his eyes flicked toward the door. “We have to be quiet,” he said. “If Jongseob wakes up…”
You nodded, understanding, heart racing anyway.
You kissed him again, slower this time, careful but no less intense. Soul kissed back just as passionately, like he had been holding himself together by a thread. His hand slid to your waist, thumb brushing lightly like he was grounding himself.
Every sound felt louder than it was. Every breath mattered. You could feel his smile against your lips, the way he tried to laugh silently and failed, pressing his face into your shoulder for a second.
“I missed this,” he whispered.
“I was right there all day,” you whispered back.
“That’s the worst part.”
He kissed you again, deeper, more certain. The world outside the blanket disappeared. There was only warmth, quiet laughter, and the way he held you like he had been waiting for this moment all night.
Somewhere down the hall, Jongseob shifted in his sleep.
You froze for a heartbeat. Soul stilled too, eyes wide, then relaxed when nothing happened. He pressed a soft kiss to your forehead.
“Stay,” he whispered.
You did.
Jongseob (Keehos Sister)
The room was dim, lit only by the glow of the city sneaking through the curtains. You were tangled together on the bed, knees brushing, hands warm, kisses slow and familiar. Jongseob laughed quietly against your mouth when you leaned in again, like he could not quite believe this was happening. Again.
“You know,” you murmured, fingers sliding into his hair, “last time you told me we couldn’t keep doing this. Because of Keeho.”
He chuckled, breath soft. “I remember.”
“And yet,” you teased, pulling him closer by his shirt, “here we are.”
Jongseob sighed like he had lost a battle he never really wanted to win. “You’re just… too irresistible,” he said, shaking his head with a smile. “That’s the problem.”
“Sounds like a you problem.”
He laughed, low and fond, before kissing you again. The kiss deepened easily, like neither of you needed instructions anymore. His hand settled at your waist, careful but certain, like he was grounding himself there. You kissed him back with intent, with history, with all the things you did not say out loud.
Then his phone rang.
You groaned softly and leaned back. “Ignore it.”
He reached for it anyway, glancing at the screen. His smile vanished instantly. “It’s… Keeho.”
Your lips twitched. “Of course it is.”
Jongseob swallowed and answered, putting the phone to his ear. “Hey.”
Keeho’s voice spilled out, loud even through the speaker. Jongseob listened, nodding, trying to sound normal while his other hand still rested on your hip. Keeho talked about schedules, about rehearsals, about something that definitely could have waited.
Then Keeho sighed. “Hey, did you talk to my sister today? She seems kinda pissed at me.”
You let out a quiet chuckle before you could stop yourself.
Jongseob’s eyes widened in panic. He slapped a hand over your mouth, stifling the sound, even as a grin betrayed him. “She’s… fine,” he said quickly into the phone. “Probably just tired.”
You kissed his palm, slow and deliberate.
Jongseob inhaled sharply.
Keeho kept talking. And talking. Jongseob tried to respond with short answers, nodding even though Keeho could not see him. You took full advantage, kissing along his hand, then his wrist, then the side of his neck. He squeezed his eyes shut, jaw tightening as he fought a losing battle.
“Hyung, I really gotta go,” he said, voice strained.
Keeho did not stop.
You kissed his neck again, lingering this time. Jongseob finally cut in, rushed and desperate. “I’ll call you later, okay?”
He ended the call before Keeho could respond.
The room fell quiet.
Jongseob stared at the phone for a second, then dropped it onto the bed and turned to you. “You’re a devil,” he said, half laughing, half breathless.
You smiled sweetly. “Your devil.”
He did not argue. He leaned in and kissed you again, all hesitation gone, like he had already accepted the trouble waiting on the other side.
