synopsis; weeks of keeping your secret connection with juhoon lead to a stolen night in your bedroom. but when an unexpected return threatens to expose everything, you risk losing the two most important people in your life.
tags; brothersbestfriend!juhoon x reader martin as your older brother secret relationship angst if you squint mentions of anger? skinship kissing 2.3k words
notes; as requested: finally part 3! i guess this is now the end of this short series and honestly i loved this more than i thought i would. part 2 is definitely my favorite but i enjoy all of them >_< likes and reblogs are appreciated!
the two weeks following that night in your bedroom went by in a blur of quiet, stolen moments.
it was exhausting, but it was the most exciting thing that had ever happened to you. you and juhoon had quickly become experts at hiding in plain sight. whenever martin was around, nothing changed. juhoon went right back to his usual, detached self. he would sit on the living room couch, completely focused on the TV screen or his phone, barely throwing a glance in your direction. you would walk past him to get a glass of water, acting like he was just another piece of furniture in your brother’s chaotic life.
but the second martin’s back was turned—even if it was just for a minute—everything shifted.
it was in the small, empty gaps of the day. you’d meet in the narrow hallway upstairs while martin was downstairs looking for his keys, sharing a quick, breathless kiss against the wall, your hearts hammering against your ribs in fear of getting caught. or juhoon would slide into your bedroom for just five minutes while martin was taking a shower, holding you so tight against his chest that you could barely breathe. it was soft, incredibly sweet, and completely secret. you were both totally head over heels, finding any possible excuse just to feel each other’s touch, even if it was just a brief brush of your shoulders in the kitchen when your brother wasn't looking.
but the paranoia was always there, lingering in the back of your mind like a dark cloud. martin was your older brother, and juhoon was his absolute best friend. if martin ever found out, it wouldn't just be an argument—it would ruin everything.
then came a quiet friday evening.
martin had been talking all week about heading out to meet some old friends from school. he’d been planning it for days, complaining about what to wear and making a massive mess in the hallway before he finally yelled a quick goodbye and closed the front door. the house immediately fell into a deep, peaceful silence.
you were sitting on your bed, the room lit only by the warm glow of your bedside lamp. the night air outside was cool, and you had pulled on one of juhoon’s oversized black hoodies that he’d accidentally left in the living room a few days ago. it was way too big on you, the sleeves completely covering your hands, but it smelled exactly like him—woodsy, clean, and warm. you had your knees pulled up to your chest, scrolling through your phone, just enjoying the quiet.
then, a soft, sharp sound made you freeze.
you blinked, turning your head toward your bedroom window. at first, you thought it was just a tree branch brushing against the glass in the wind. but then it happened again, louder this time.
you slid off the bed, your bare feet making no sound on the floorboards as you walked over to the window. you unlocked it and pushed the glass open, the cool night breeze instantly hitting your face. you leaned out, your eyes widening in shock.
juhoon was standing on the narrow roof overhang outside your window. his hands were shoved into the pockets of his dark jacket, and his messy hair was blowing slightly in the wind. when he saw your face, a small, knowing smirk spread across his lips.
"hey pretty," he whispered, his voice incredibly low.
"juhoon? what are you doing?" you whispered back, looking around the dark backyard in panic. "are you crazy? you could have fallen!"
"martin’s gone, right?" he asked, ignoring your panic entirely.
"yeah, he left like half an hour ago, but—"
before you could finish your sentence, juhoon grabbed the wooden frame of the window. with an effortless, practiced grace, he pulled himself up and swung his long legs over the sill, stepping quietly onto your bedroom floor. he closed the window behind him and locked it, shutting out the cold air.
when he turned around, his eyes instantly locked onto you. his gaze dropped down, taking in the giant black hoodie hanging off your shoulders. the smirk on his face widened, turning into something incredibly soft.
"you're wearing my hoodie," he murmured, stepping closer.
your cheeks instantly flushed warm. you pulled the sleeves down further over your hands, looking up at him. "it was on the couch. and it’s cold in here."
he didn't waste another second. juhoon closed the remaining distance between you, his arms wrapping around your waist. he pulled you in flush against his chest, burying his face in the crook of your neck. you let out a soft sigh, your hands automatically wrapping around his shoulders, holding onto him like he was the only anchor in the world. he smelled so good, and the heat radiating off his body instantly warmed you up.
"i missed you," he whispered against your skin, his voice sending a shiver down your spine. "martin wouldn't stop talking today. i couldn't even look at you."
"i know," you murmured, leaning your head against his chest, listening to the steady, rapid beat of his heart. "it's getting harder to pretend."
"way too hard," he agreed.
he pulled back just enough to look at your face, his hand rising to gently brush a stray piece of hair behind your ear. his thumb lingered on your cheekbone, tracing the soft skin. he looked so relaxed here, in the quiet safety of your room, away from the rest of the world.
"come here," you said softly, tugging at his shirt.
together, you both crawled onto your bed, sitting close with your backs pressed against the headboard. the room felt incredibly cozy, the small lamp casting long, warm shadows across the walls. juhoon stretched his long legs out, and you immediately curled up against his side, resting your head on his shoulder.
his hand found yours on the blanket. his large, warm fingers slipped between yours, locking your hands together. you watched as his thumb began to slowly, rhythmically trace over your knuckles, just like he had done two weeks ago. it was a habit of his now, a quiet way of keeping you grounded, and it made your chest ache with how sweet it was.
"what if he comes back early?" you asked quietly, the lingering anxiety poking at your thoughts.
"he won't," juhoon said, his voice calm and confident. "he was going to that arcade on the other side of town. he’ll be gone for hours."
"but what if?" you insisted, looking up at him.
juhoon stopped tracing your knuckles. he turned his head to look down at you, his dark eyes incredibly serious. "then let him. i'm tired of hiding in hallways. i'm tired of having to act like i don't want to hold your hand when we're sitting at the same table."
your breath trapped in your throat. you stared at him, completely captivated by the raw honesty in his voice. the cool, unapproachable juhoon was entirely gone when he was alone with you. he was vulnerable, sweet, and so fiercely protective of whatever this was between you.
"you don't mean that," you whispered, though your heart was beating wildly. "martin is your best friend. it would ruin everything."
juhoon stared at you for a long moment, his thumb resuming its gentle stroke over your hand. "he’s my best friend, yeah. but you're... you're everything else."
your heart swelled so much it felt painful. you reached up, your fingers gently tangling into the soft, messy strands of his hair, pulling him down slightly. juhoon didn't need any encouragement. he leaned in, his lips meeting yours in a slow, deep kiss that tasted like pure relief.
it was a quiet, lingering kiss, full of all the unspoken words and frustration of the last two weeks. his hand moved from your waist to the back of your neck, his fingers holding you gently but firmly, keeping you close. you melted into him, your eyes closed, completely forgetting about the rest of the world outside your bedroom door.
neither of you had any idea that downstairs, the front door had quietly clicked open.
martin’s plans had fallen through. his friends had canceled at the last minute, and he had trudged back home, annoyed and cold, wanting nothing more than to grab some food and complain to you about it.
neither of you heard his heavy footsteps coming up the wooden stairs, or him walking down the hallway.
outside your bedroom door, martin stopped. he had walked up to ask you if you wanted to order a pizza with him, but as he reached for the doorknob, the sound of hushed, quiet whispers from inside made him pause.
he frowned. you were supposed to be alone.
inside the room, juhoon pulled back just a fraction, his lips brushing against yours as he spoke. "you look really pretty in my clothes," he murmured, his voice a sleepy, deep rumble. "i think you should keep it."
you let out a soft laugh, your face completely flushed. "martin is going to notice if i start wearing your hoodies every day."
"let him notice," juhoon whispered, his eyes dropping to your lips again. "i'll just tell him i like seeing you in them."
your fingers traced his jawline, a soft smile on your face. "you're crazy."
"only for you," he murmured.
on the other side of the door, martin’s blood ran completely cold.
he recognized that voice. he knew that deep, quiet tone better than anyone else’s. it was juhoon. his best friend. his brother in everything but blood. and he was in his little sister's room, talking to her like that.
martin’s mind raced, a sudden, suffocating wave of shock washing over him. he stood frozen in the dark hallway, his hand hovering over the doorknob as his brain tried to process what he was hearing. his best friend. the guy he trusted with everything. the guy who sat at his dinner table, who gamed with him, who he called his brother.
and his little sister. the sister he had spent his entire life trying to protect.
the shock quickly turned into a thick, burning anger. it started in his chest and quickly spread through his veins, hot and blinding. they had been lying to him. for how long? how many times had juhoon been in this house, pretending to be his friend, while secretly looking at you?
inside the room, juhoon leaned down again. his eyes were dark, full of affection, his thumb gently wiping a stray lash from the corner of your eye.
"i love you," he whispered, the words slipping out so easily, so naturally, that it made your breath completely hitch.
you stared at him, your heart hammering a frantic rhythm against your ribs. "juhoon..."
"i do," he said, his face inches from yours. "and i'm not going to keep hiding it."
you tilted your head up, your eyes fluttering shut as you prepared to close the tiny space between your lips, ready to give him everything—
the bedroom door flew open, hitting the wall with a deafening crash that shook the entire frame.
you both jumped apart instantly, your hands ripping away from each other as your eyes flew wide in sheer, paralyzing terror.
standing in the doorway was martin.
his face was completely pale, then turning a dark, angry red. his chest was heaving up and down rapidly, his fists clenched so tightly at his sides that his knuckles were stark white. he looked between you—sitting on the bed in juhoon’s oversized hoodie—and his best friend, who was slowly scrambling off the mattress.
the absolute betrayal in martin’s eyes was devastating. but the anger behind it was terrifying.
"what the actual hell is going on here?" martin roared, his voice shaking the entire room.
the sheer volume of his voice made you flinch, your hands instinctively grabbing the blanket. juhoon stood up slowly, stepping directly in front of you, shielding your body from martin’s furious gaze. his face was pale, but his jaw was set, his shoulders tense and ready.
"martin, listen to me," juhoon said, his voice remarkably calm despite the situation, though you could see the slight tremor in his hands. "let me explain. it's not what you think—"
"explain what?!" martin shouted, taking a massive, aggressive step into the bedroom. he looked like he was about to explode, his eyes wild with rage as he pointed a shaking finger at juhoon. "my best friend? in my sister's bed? behind my back?!"
"martin, please—" you started, your voice cracking with tears as you tried to step out from behind juhoon, but juhoon gently blocked you with his arm, keeping you safe behind him.
"shut up!" martin yelled, his eyes snapping to you for a fraction of a second, filled with hurt and anger, before locking back onto juhoon. "you lied to me. you stood in my house, you ate my food, you acted like my brother, and the whole time you were touching my sister?!"
"it’s not like that," juhoon said, his voice dropping, trying to de-escalate the anger. "i care about her, martin. i really care about her. i didn't want to lie to you—"
"you're dead to me," martin whispered, his voice suddenly dropping from a shout to a low, venomous growl that felt a hundred times worse. "both of you. get out of my sight, juhoon. get out of this house before i fucking make you."
the silence that followed was suffocating. you looked at juhoon’s tensed back, then at your brother's furious, trembling frame, realizing with a sinking heart that the secret was finally out.
and everything you knew was about to burn to the ground.
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