the brother's best friend trope | lee heeseung

eleven

the next week started with heeseung and you creating some sort of tension with one another- it was awkward but full of need and lust that neither one of you could act out on.

the amount of lust that had built up between you two was no joke.

there were so many times when heeseung just wanted to wrap his arms around your waist and whisper all the dirty things he wanted to do to you in your ear.

and if it wasn't for sunghoon being around all the time you would've jumped heeseung's bones by now.

your parents were both at work, while sunghoon and heeseung had gone over to jake's house for the day. the house would finally be silent and you could be alone with your thoughts for a minute. of course, all your thoughts went straight to heeseung- and how his body would look on top of you- how he would fuck you.

you tried to put it off as much as you could, but when your hand started to trail its way down your core and slip so easily into your shorts and panties there was no way you could pull it back out.

you slowly started to rub your clit in small, slow circles. imagining that heeseung was doing it instead. it felt so good, but you knew that heeseung could make it feel even better.

you imagined heeseung whispering dirty things in your ear like the way he's been whispering all week to you when sunghoon was just around the corner. you imagine his warmth on top of you as he tries to get you to climax all over his fingers. he would tell you just how much of a good girl you were being for him.

your other hand slid up and started to massage your breast through your tight tank top. your thumb and forefinger squeezed your nipple in between them, adding pleasure to your core. your fingers started going at a faster pace, chasing after the climax that you so desired.

heeseung had left jake's house early, wanting to go to bed early tonight because he planned on spending time with his actual family tomorrow, needing him to wake up early.

he didn't think he was necessarily being quiet when he walked into your house, not even aware that you were even still home.

"heeseung." he heard your voice from down the hall, you sounded whiny and out of breath, concern retching onto his face at the thought that you were possibly hurt.

your bedroom door was open by the smallest amount, just enough for heeseung to look in and see you layed out on top of your bed. your hair was flayed out against your pillow, your eyes were closed and your mouth was slightly open in a blissed-out way.

heeseung's own mouth dropped open once he scanned down your body and saw what you were doing under your little shorts.

heeseung was having an internal conflict with himself : you're sunghoon's little fucking sister! but you're y/n and my god you're hot. he was about to turn and leave until his name left your mouth again, signaling that he wasn't hearing things beforehand.

your fingers were rubbing your little clit at the thought of him.

"fuck." heeseung let out, in awe of how cute and sexy you looked at the same time with the strap of your tank top slipping off of your shoulder.

you immediately sat up, ripping your hand out of your pants at the sound of someone outside your door. you had thought had closed it all the way!

your cheeks flushed red once you met eyes with heeseung. internal dread took over you as you grabbed a pillow from behind you and tried to cover your body more from his eyesight.

heeseung's mouth opened and closed as he tried to find some words to say.

"heeseung~!" sunghoon singsonged as he entered his house.

fear-filled both you and heeseung more as heerseung's hand scrambled out and pulled the doorknob of your bedroom closed before rushing down the stairs, fixing his jeans so sunghoon wouldn't see his (hopefully not) obvious boner.

"hey, man!" heeseung greeted his younger friend at the bottom stair, "thought you'd stay at jake's for a bit longer, no?"

"nah, i wanted to eat dinner here tonight." sunghoon replied, taking off his shoes, "is y/n home?"

"uh, i'm not sure, if she is i haven't seen her, i kinda just got here."

"ah, ok." sunghoon nodded, "do you wanna play some fifa until my parents get home?"

'"yeah for sure! i just have to get in the shower first, okay?" heeseung replied, pointing his thumb over his shoulder.

"okay, but hurry! i want at least one game before they're home!"

"okay okay!" heeseung laughed, turning around and quickly running into the bathroom. he shut the door and locked it before anyone else could come in.

"fuck, fuck, fuck, fuck." heeseung mumbled to himself, looking down at his crotch. thank god sunghoon wasn't looking at him while he was downstairs.

heeseung quickly turned on the shower and got undressed. his pale body uncovering itself and releasing his boner. he cursed his past self for putting on jeans this morning. the tightness of them was suffocating and he basically ripped them off.

god, heeseung felt so guilty for masturbating in the shower. he felt like he was fourteen years old again and just starting puberty. but he felt even more guilty that he was masturbating to the thought of his best friend's little sister.

he had tried so hard to get rid of his feelings for you- because there was just o way that the two of you could work anything out between you two without ruining things with sunghoon for the both of you.

but after 10 months of not seeing you or talking to you, it had just seemed to make his feelings for you stronger. you were so much more mature now, you had finally finished growing into your body, and your voice had toned down a pitch that made him almost melt every time you spoke.

your breasts were perkier, and your clothes were tighter, god he wonders what the guys at your school must think of you now.

he'd be so quick to brag to any of them that he was the one that you thought of when you got yourself off. lee heeseung was the one that park sunghoon's little sister thought of.

though, to heeseung, you were so much more to him than sunghoon's little sister, though, in reality, he knew that you'd have to stay that way. no matter how many times he's thought about- or almost kissed you, you were off-limits. and sunghoon has made that very clear.

still, he couldn't get his mind away from your little whines and your fingers rubbing your clit. his hand got faster and faster as he got himself off in the shower- in your shower.

heeseung thought of fucking you so that you would whine his name out loud so breathlessly again. he thought about how tight your pussy must be- how he'd be the first one to fuck you properly. he wanted to get you to come undone on his cock- for you to scream out his name then as you cling onto him for dear life as your climax hit you.

"god." heeseung whined out quietly, thanking the shower for sounding out his volume. he couldn't hold it any longer, letting his release go, squirting his cum all over his hand and shower wall. his red tip pulsating as he put his forehead on the shower wall beside him.

"fuck." he let out a frustrated sigh, what has he done to himself?