#he's def a pervert..

pairing: sister’sbf!eunseok x fem!reader

wc: 1801..

cw: noncon, infidelity, age-gap (reader is 18), coercing, unprotected sex, loss of virginity.

eunseok as your older sister’s boyfriend who visits quite often, your mom, fairly content with his presence.

it’s late june, you’re out in the backyard, tanning with your best friend while scrolling on your phone. your coral and pink bathing suit, warm from the sun, molded to your skin, a second damp layer. 

your older sister sits on the couch with eunseok watching tv, cuddled up to him despite the heat. although you were old enough to be left without supervision, she was visiting so you didn’t mind too much. 

 your best friend sighs, turning her phone off. “can we get in the pool now?” she asks. your eyes flickered to your still-pale thighs, a silent negotiation playing out in your mind. but it wouldn’t matter too much, you could just come back out tomorrow. the UV shouldn’t be too different tomorrow. 

“sure, let’s get in!” you smile, placing your phone on your beach towel. without hesitation, the resounding crash of her hitting the water leaves droplets scattered across the patio like flung pearls. you dove after her, the sudden chill of the water chasing away the lingering summer heat from your body. 

the sudden sound of laughter, broke your sister’s gaze from the tv to the two of you. eunseok’s gaze followed, a faint, unreadable smile touching his lips as you splashed.“i miss times like that.” your sister says, smiling at your enjoyment. eunseok nips at his bottom lip. 

“we could always go to the beach when we go back home?” he proposed. her face, which had been relaxed, suddenly lit up. 

“you’re so right, we definitely have to before the summer is over.” 

-

night time settles in, your best friend is long gone, but you’re still in your bathing suit—too lazy to remove it and shower. the crisp air of the fridge hits your face as you open it, looking for a snack. you search up and down the fridge, a bag of grapes in the fruit drawer catching your eye. crouching down, you grab the bag out the fridge to place them on the counter. 

you straightened up, only for a solid form to block your light, his presence suddenly unnerving, his eyes leveled with yours. 

“oh shit!” you breathed, your heart already thumping in your chest. your feet, almost on their own, pulled you away from him, instinctively seeking a safe distance of the cupboard, where bowls were kept. 

“what are you doing?” he asked, voice too light, too innocent. you felt his gaze, heavy and unsettling, as he languidly leaned against the refrigerator. you didn’t even turn your head, “grabbing a bowl,” you drawled out, letting the words with sweetness that soured in your mouth, “so i can eat grapes.” 

“let me get some.” he said, his low voice filling the quiet kitchen.

you focused on the sudden burst each grape made as you plucked it off the vine. but before you could even register the quiet rustle of clothes, eunseok was there, too close, too invasive. his presence, suddenly a suffocating heat. his hand unexpectedly and invasively slid along the sensitive curve of your back, lingering just a moment too long. 

“what—i can’t touch you now? i'm your brother.”

a rigid stillness settled over you. your spine straightened, and your brows drew together, taking in his words. 

“exactly.” you state, the single steel-cold barrier between you. eunseok bites at the inside of his cheek, then, in a sudden, jarring motion his hands were on your hips. gripping tightly, and you were spun around to confront him fully.. your mouth, suddenly dry, turning down at the corners. your brown eyes, unblinking, fixed on his, a coldness behind them. “this bathing suit looks so good on you.” eunseok compliments, taking his hand and smoothing it over your hair. 

you felt trapped, stuck between a 24 year old man who you distinctly saw as your brother. “eunseok get the fuck away from me.” you spit out, grabbing his hand placed on your head. his expression switched from this alluring, sweet façade to an ugly demeanor. 

you knew you made him angry. the way his jaw clenched, a muscle jumping in his cheek, the pleasant glint in his eye vanished, replaced by a sudden chilling flatness.

eunseok shoves your hand away, twisting your wrist in his grip. hard. and behind your back. 

“no.”

the last expression you see on his face was an earth-shattering smile, his warmth coming into contact with your skin, the taste of chlorine coating his lips. you shudder, balling your fists tight, knowing if you were to scream your sister would come rushing down the stairs. but how would you convince her that you didn’t provoke him in the first place?

his kissing intensified, the sensation of his teeth skimming your skin making your flesh raise with bumps. the words you yearned to say, stuck. eunseok could easily shut you up if he wanted to, so it was best to stay quiet. he frees your wrist, letting it travel down your back to the waistband of your swim bottoms.

the damp fabric of swim bottoms offered a fleeting, fragile barrier. but it was useless, his hand, hot, a brutal weight to it, dug into the soft flesh of your lower back, fingers gouging into your skin, even as his teeth grazed your neck. a guttural sound drew from you, a strangled shriek that felt ripped from your core. your hands, trembling but desperate, clawed at the rough fabric of his khaki shorts, gripping with great strength. 

his hand clamped down, a firm, brutal hold on your ass, his middle finger violating a probe, beginning to trace the unwelcome arousal that seeped, hot and shameful, from your core.. “sure you don’t want this?” he murmured, the sickly warmth of his breath coating the shell of your ear. you were paralyzed with dread. this was it. the nightmare. something you prayed away. the one your  sister tried to protect you from–only now, the monster was her soon-to-be fiancé. 

his fingers continued their insidious exploration, the slickness on them a grotesque guide toward his harrowing intentions. your eyes burned, with unshed grief, finally betrayed you; hot, fat tears, unstoppable. “awe baby, don’t cry.” he consoles, wiping your tears harshly with his thumb. you jerked your head away from his touch–something you were still able to control. “come on pretty, take my fingers…you know you want it.” the way the words flowed out his mouth, made him so enticing. but you’d never fall for it. not for a menacing creature like that. 

a cry tore from your throat, his fingers forced their way, wedged in between your walls, too wide, too rough. the vibrations of his groans against your face, stiffened every muscle in your body. “eunseok..” the name was a bare whisper. a desperate plea.. his fingers repeated the motions you’d done to yourself repeatedly. but this was different. when you did it to yourself, it was an act of quiet, private pleasure. no warmth, no release. only the cold crushing weight of violation and a sickening surge of fear and repulse.

 “s’fucking tight,” he grunted, the words hot against your ear, “wonder how you’d feel around my cock.” he rammed into you, pumping faster, a fistful of your auburn hair yanked tight in his grip. your head smashed against the cold marble countertop, a sharp blinding pain exploding behind your eyes. you cried out, hands scrabbling against the unforgiving surface, desperate for it to anchor you. 

 the harsh sound of his zipper, whisper of khaki fabric dropping to the ground pierced the suffocating silence, screaming at you to just run away from it all. but your mind flashed with possibilities: two figures frozen in this kitchen; his hand swift and unhesitating, snatching a knife; the cold blade plunging deep between your shoulder blades, right into your spine. 

the blunt tip of his cock lies perfectly between your folds, right before your deepness. your throat constricted, the salvia in your throat is coarse and thick, almost impossible to swallow. every muscle in your body screams in protest as he forces himself to fit inside of your small frame. your press-on nails screech against the marble, your knees knocking inwards. the arousal secreted from your walls around his cock, was only a bodily response. a desperate mantra, even as he continued to boast about how much you–he–needed this.

‘better than your sister. should’ve fucked you when i first laid eyes on you.” the cruelty of those last words ‘first laid eyes on you’ made something knot into a cold, hard stone.. five years. five years you'd seen him as a brother. how could those ear-piercingly, vile words come from him ? eunseok increased his pace, grunts following every thrust, his hand winding into your locks, using it to grind your head into the cold marble with every violent push. small noises emitted from you, but by now you were so frozen, even your vocab was. the tears couldn’t stop, and neither could your moans. 

“stop, please…please. eunseok.” your pleads came out in short breaths, as his thrusts became relentless.  eunseok chuckled, admiring the tiny, pure body–a body he now utterly controlled. “don’t wanna wake your sister, do you?” he taunts, yanking your head up to meet his gaze. you glare into his cold eyes, scared to detach them from his gaze. eunseok plants a kiss on your lips, once, twice, and even a third time. demanding a response you couldn’t give. “come on now,” his lips brushing yours, “i know you’ve wanted to kiss me at least once. now's your chance.” *eunseok smashed his lips against yours, you involuntarily pressing back onto him. the kiss is rough and leaves you gasping for air against your saliva coated lips. 

“such a pretty girl.” eunseok compliments, his rhythm slowing, dragging out the agony. your pussy responded to him, the feeling of his orgasm reaching. “gonna cum in this pretty sweet pussy of yours.” your eyes frantic and wide, darting around the kitchen, the sun finally dipping below the horizon. you hadn’t even noticed.

as he incessantly grazed in and out of you, your surroundings dissolved once again. your head recoiled against the countertop as he unraveled his hand from your hair, hands finding your waist, a familiar anchor. eunseok bucked his pelvis into your hips, holding his grunts in his mouth. and then, the hot, viscous flow of his seed. you swore you could feel it coursing through your veins, a searing venom. the foul taste of semen– you never knew–somehow coated your throat. a broken sob poured from your lips. a shuddering mess in his hold.