good boy
intern!jooyeon x supervisor!reader
genre: smut, business trip au — wc: 4k
warnings: ADULTS ONLY. MINORS DNI. power dynamic, praise kink, masturbation, light choking, dirty talk, slight age gap, forced proximity?, reader is called “noona”
synopsis: months of silently thirsting over his hot supervisor, jooyeon finally gets the chance to travel abroad with her. a little too much time alone together makes it difficult to ignore the growing desire he’s tried to keep under control.
a/n: after literally YEARSSS of being on tumblr, i’m finally posting my first fic. if you enjoyed reading, i’d really appreciate any interactions!! thank you so much for giving my story a chance ♡
! disclaimer: this is a work of fiction. all portrayals are fictional and do not reflect the artists irl.
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For the past three months, Jooyeon thought you would be the death of him. During your first user interview on a Zoom call, he thought you were pretty behind those glasses. But actually seeing you at the office made him lose his mind.
Every day he noticed the way your tight skirt hugged your curves. Paired with your blouse, sometimes sheer enough he could see the bra outlines underneath. He would never admit he was a pervert, but he could not stop thinking about unclasping it.
Compared to the older, creepier higher-ups, Jooyeon was far more a gentleman. Too submissive, even. Whenever you called him over, your desks barely five feet apart, he would scramble to get into position. You thought that was cute.
By the first look, he actually has that sharp handsomeness. Though, you were not that far apart in age, but he was physically more mature and looked older as well. It amused you to order him around, and he always took his tasks like a good boy. It never crossed your mind that he had imagined far dirtier things about you.
At first, he got down on both knees whenever you called him over to your desk, thinking it would make it easier to meet your gaze while you were seated.
You blinked at him. “What the fuck are you doing?”
His eyes widened. “Ah, right. Sorry, Noona.”
He was back on his feet almost instantly, scratching the back of his neck with an embarrassed smile.
“Don’t do that again,” you said, though a smile tugged at the corners of your lips.
“Got it.” He folded his hands neatly in front of him like a child being scolded.
The truth was: the situation had become unbearable for him. When you were sitting, you were exactly at his waist height. Kneeling had seemed like the more respectful option, at least until you called him out for it.
Standing wasn’t any easier.
He could barely focus on what you were explaining whenever you looked up at him with those pretty eyelashes he swore were batting in slow motion. Oftentimes he could see the top of your cleavage, and he fought to keep his hardness from poking right onto your cheek.
Fast forward to weeks later, an emergency internal meeting was called. Seongmin from the Export Sales team had been hospitalized just days before the overseas furniture expo, leaving their team without a representative.
“At this point, we don’t have the luxury of training someone from scratch.” The department’s head said.
A few suggestions were exchanged before each was dismissed for one reason or another. It really was not an easy time since other divisions already had their own responsibilities.
“I think Jooyeon could do it.” You suddenly said.
Jooyeon tried to act casual when you suggested his name.
“Wouldn’t that be a bit of a stretch?” One of the meeting attendees asked.
“It would,” you admitted. “But he’ll be working under me throughout the trip. He’s familiar with our products, our clients, and the way we prepare for meetings.”
You paused before adding, “And he’s a fast learner.”
Jooyeon kept his eyes on the meeting agenda, though his mind had already drifted somewhere else.
Under me.
He swore your voice and those words made lust boil inside him. A business trip with you meant more time together. Maybe he could finally drop the act and man up enough to get to know you beyond elevator conversations, Zoom calls, and work updates.
The real problem waited for both of you in the hotel room. A single king-sized bed. You had both been excited about the trip until you arrived and discovered it was one room for two people.
He felt himself get hard just listening to you curse out the transport team on the phone. They had cancelled Seongmin’s room, and in the process, failed to secure an alternative room for Jooyeon.
After several minutes of arguing over the phone, you and Jooyeon decided to settle into the room. The hotel promised they would call as soon as another room became available.
“It’s okay, Noona. Maybe we… I could book another hotel nearby.”
You gave him a look before handing over your phone.
“Good luck with that.”
The booking app displayed a sea of sold-out listings. “Everything within a hundred miles is fully booked.”
Jooyeon let out a long sigh, trying his best to sound disappointed. “Damn.”
The hotel itself was not bad and it’s actually within walking distance of the venue. The elevator ride was quiet until Jooyeon’s eyes drifted to the hotel directory.
“Noona,” he said, nudging his chin toward it. “Look.” You followed his gaze.
“They have a lounge on the top floor.”
“So?” You raised an eyebrow.
He smiled, a little sheepishly. “The view should be nice at night.”
You looked at him then shrugged, “Sure.”
"Maybe this won’t be so bad after all," he confidently reassured.
You only nodded, the room suddenly became a much smaller issue. If anything, you were simply grateful it was Jooyeon standing beside you.
Once you’re inside the hotel, you began to unpack your suitcase, claiming the side of the bed closer to the window. The room itself came with a vanity and an armchair tucked in the corner, both closer to your side.
"I’ll take this side, if you don’t mind.”
Jooyeon nodded without hesitation. “You take the bed. I’ll sleep on the chair, Noona,” he offered.
You shut that down with a glare. “No.”
He opened his mouth trying to protest, but you were already walking over to him.
As much as you respected the suggestion, you could not risk him losing rest. He would be handling tasks for you tomorrow. You needed him in top condition. Your career meant everything.
“Think about it. If this trip goes well, we present well, maybe I earn that promotion…” You tilted your head slightly. “And maybe they finally offer you a full-time position.”
He gulped. Standing this close to you never got any easier. The window light gave you a golden glow that made it hard to look away. There he was again, unsure where to look. Your right eye? Left eye? Your lips?
Fuck.
“Doesn’t that sound best?” you asked, voice almost a whisper, eyebrows slightly furrowed.
He nodded a little too quickly. “Y-yes. Absolutely.”
You smiled in satisfaction. “Now,” you picked up your toiletry bag.
“I’m going to shower.” You glanced back over your shoulder with a teasing smile. “Be a good boy, Jooyeon.”
His heart skipped.
“Oh, and, Jooyeon?”
“Yes?”
“No work clothes on the bed.”
“Of course, Noona.”
The entire time you were in the shower, he could not stop thinking about you. He caught himself wondering what you wore to bed before immediately groaning, annoyed at where his mind had gone.
He was almost tired of you treating him like a little kid, even though a part of him leaned into it on purpose just ‘cause he loved hearing both your praises and scoldings.
Tonight had been different. He’d heard you call him “good” before. Good work. Good thinking. Good job. But never good boy. Hearing those words from you for the first time woke something in him.
You stepped out of the bathroom, towel draped over your shoulders as you dried your hair. An oversized T-shirt hung loosely over a pair of shorts, replacing the tight skirts and blouses Jooyeon had grown so used to seeing.
For a moment, he simply stared.
“You’re going to dry your eyes out,” you said, chuckling.
Jooyeon laughed and blinked a few times. “Sorry.” A sheepish laugh escaped him.
“What is it?” you tilted your head.
“No, it’s just weird seeing you like this, noona. Not all…polished?”
You squinted at him. “So I look less put together now?”
“N-no.”
“…Ugly?”
He jolted up from his seat, waving his hands. “No, no, no. Of course not. I think you look…” his voice softened, “cute.”
You laughed. “I’m just messing with you.” The tension immediately got released from his shoulders.
“Go shower,” you said, reaching for the hair dryer. “I’m borrowing this first. You can have it when I’m done.”
“It’s okay. Take your time, Noona.” He smiled.
Jooyeon hung his clothes for tomorrow in the wardrobe, grabbed a clean towel, and headed to the bathroom. He stripped quickly and turned the shower on full blast, hoping the sound would cover the noises he was about to make as he stroked his hard length.
He had tried not to think about it, but he could still picture your perky nipples beneath that t-shirt.
Stroke.
Jooyeon moaned, forehead pressed against the cold tiles, one hand gripping the faucet for balance.
He imagined your voice calling him a good boy. He pictured you on your knees, no longer ordering him around but silenced by his cock.
Stroke.
He imagined pinning you to the bed, your leg over his shoulder as he thrust into you while you moaned those curse words he had heard earlier. Fuck. Fuck. Fuck. His strokes sped up until warm release spilled over his hand.
The post-nut clarity hit hard. He stared at himself in the mirror while washing his hands.
What the hell am I doing?
“That took you a while,” you said when Jooyeon stepped out of the bathroom.
His damp hair fell over his forehead, and he’d traded his office attire for a loose striped T-shirt that exposed the line of his collarbones and a pair of soccer shorts from a club you didn’t recognize.
He rubbed the back of his neck. “Well…” he said with a grin. “Long hair takes maintenance, Noona.”
You gave him an unimpressed look before rolling your eyes. “Right.”
You’d already settled onto your side of the bed, watching local news while your laptop rested on your lap, tomorrow’s agenda open on the screen. Your hair was only half dry, the hair dryer still humming in your hand. Seeing you, Jooyeon instinctively reached for his own laptop.
“Oh,“ You glanced up and turned off the hair dryer. “I’m done actually.”
Holding it out to him, you added, “Dry your hair first.”
He smiled sweetly and accepted it. “Thank you.”
Then he did something unexpected. Jooyeon settled onto the carpet beside the bed, close enough that he could rest one arm against the mattress.
As he ran the hair dryer through his damp blond hair, he leaned over to peek at the laptop balanced on your lap like a curious kid.
“What are you doing?”
“I’m drying my hair,” he said. The dryer clicked off.
“You call that drying your hair?” You nodded toward the laptop. “You’re being nosy.”
He sheepishly switched the dryer off.
“I just thought I could go over tomorrow’s agenda with you while I dried it.” He smiled. “No time wasted, right?”
It sounded reasonable. “Fair enough.” You shrugged. “But don’t ask me to scroll back up if you miss anything.”
His grin widened. “Don’t worry, Noona.” He tapped the side of his head. “I’m a fast learner, remember?”
It really should not take that long to dry blonde hair. His ends were starting to crisp, but Jooyeon’s eyes had long drifted from the screen to your focused face. He wondered if that is how you’d look when you’re chasing your orgasm.
“Jooyeon, you’re going to burn your hair.” Your eyes stayed on the screen.
He blinked, realizing the hair dryer had been hovering over the same spot for far too long.
“…Right.”
The man then switched it off, neatly rolled up the cord, and returned it to the bathroom.
When he came back, he settled onto the edge of the bed beside you. Close enough that your shoulders nearly touched.
He looked at you like he wanted you to notice him, but you kept your eyes forward. You were afraid that if you turned to him now, the careful professionalism you’d worn for years would crack. At this distance, it almost felt as though he could hear how hard your heart was pounding.
“I’m sorry, noona.” His voice came out like a plea. “You’re just…too pretty.”
Heat rushed to your cheeks, and your mind went hazy. You can feel his gaze lingering and steady, distracting you from the fact that you could not even locate the last point you had read.
When you finally turned, you’re immediately met with his eyes. For a fleeting moment, neither of you spoke.
He leaned in closer, testing the waters. Slow enough to give you a chance to turn away. When you stayed still, he cupped your face with both hands. The space between you gradually disappeared as his lips brushed yours.
Fuck it.
One hand slipped down from your cheek to the back of your neck, drawing you closer as he stole your breath, literally. You trailed a hand to his chest, unsure but lost in how good it felt.
You could feel yourself getting wet.
“Fuck,” You sighed audibly and moved the laptop to the bedside table before turning back to him.
“We shouldn’t do this,” you said.
“Why?” Jooyeon asked.
“Because…” You had no real answer. Or maybe you did, but it did not matter anymore. You wanted him.
Jooyeon smirked at your hesitation. “Not so witty anymore, huh?” He teased. “Noona?”
Your breath hitched, growing heavier as heat rushed through you. You never imagined the nickname he threw around daily could sound so filthy coming from his lips. Fuck…maybe you actually had a kink for it.
When he pulled you into his lap, you let him. Your hands held his broad shoulders. He caressed your hair and tucked a strand behind your ear.
“I want to make you feel good,” he whispered
“Hmm,” you whimpered, eyes closing as you felt his breath on your neck.
Jooyeon planted kisses along your neck, nipping and licking until you moaned. When he sucked harder, you knew it would leave a mark. Finally you managed words.
“P-please…”
“Hm?” He lifted his head. His eyes were dark with want. “Please what?”
Fuck. Why did he have to tease so much?
“Please kiss me, Jooyeon.”
“With pleasure, Noona.”
He dove back to your lips. This kiss was sloppier, hungrier. He was a biter and a sucker. Every time he bit your lower lip or sucked on your tongue, more moans slipped out of you.
His hand slid under your shirt, squeezing your bare breasts and tugging at your nipples.
“Aah-!” you moaned.
He crashed his mouth over yours again, devouring your gasp as he sucked the air straight from your lungs. One hand shoved your t-shirt up roughly while the other tugged impatiently at the hem. You quickly helped him strip it off, your bare chest now fully exposed to his hungry gaze.
Jooyeon groaned at the sight. He leaned down and attacked your breasts without mercy, licking, sucking, and biting at your sensitive nipples until they were swollen and glistening. His cock twitched and hardened rapidly beneath you, thick and insistent against your core.
“Fuck, these pretty nipples… I could suck on them for hours,” he muttered, voice low and rough. “So fucking perfect.”
“Yeah?” You rolled your hips, grinding down on him with purpose. Only two thin layers of fabric kept his throbbing cock from sliding against your slick, aching folds.
“Ah-fuck… yes,” he hissed through clenched teeth.
“If you don’t speed up, we’re not sleeping at all tonight, Jooyeon-ah,” you warned, your voice dropping into a raspy, needy tone.
He gave your left nipple one last hard, wet suck that made your back arch, then pulled back. In one fluid motion he crossed his arms and yanked his shirt over his head. You slid off his lap and lay back on the bed. He knelt beside you, shoving his shorts down his thighs while you kicked yours off.
Your breath caught. He was big. Thick, heavy, and flushed with arousal. You couldn’t stop staring, wondering how something that size was going to fit inside you.
“You like what you see, Noona?” He wrapped a hand around his cock and stroked it slowly, eyes roaming greedily over your naked body.
“I… I don’t think it will fit,” you breathed, voice soft and playful as you batted your lashes up at him. You knew exactly how much he loved when you played innocent.
A dark smirk tugged at his lips. He moved between your spread thighs and used both thumbs to part your pussy lips, spreading you wide open. The cool air hit your exposed core and you felt yourself flush with embarrassment. You turned your head to the side and bit your lip.
“Hm… I guess I need to prepare you first,” he murmured.
His thick thumb dragged through your dripping folds, then pushed deep into your tight heat. He pumped it slowly before pulling out to rub firm, slick circles around your swollen clit. A loud moan escaped you.
“Ah, Jooyeon…”
“You’re fucking soaked, noona,” he growled. “You like it when I play with this pretty clit?” He applied more pressure, circling faster.
“Uh-huh… yes, keep going-”
His other hand suddenly wrapped around your throat, fingers firm on your jaw as he forced your head back toward him. “Look at me, Noona.” His eyes were almost black with lust. “You’re not in control now.”
His fingers sped up, rubbing your clit with relentless precision. You locked eyes with him, unable to look away while his strong hand held your neck.
“Ah… ah… Jooyeon, please…”
“Tell me what you want.”
“I want to cum… please,” you whimpered. His fingers felt inhuman, better than any toy you’ve ever used.
He copied your desperate open-mouthed expression and slowly shook his head.
“That doesn’t sound convincing enough, Noona.” His thumb pressed harder, stroking tight and fast.
"Fuck...you," you spat breathlessly, words trembling with desperation.
Jooyeon let out a low, amused chuckle. "Patience, Noona."
Your back arched sharply off the bed, toes curling as the sensation in your lower belly grew unbearable. Moans spilled helplessly from your lips, your voice strained under the firm pressure of his hand around your throat. You were right on the edge, trembling.
“This greedy little clit can get even wetter and swollen for me," he growled. "Beg properly like a slut you are, Noona.”
"Jooyeon, please...I can't–" Your voice broke into a whimper as tears slipped down your flushed cheeks. “Please let me cum… please.”
Then he finally gave in, commanding, "Okay. Cum for me."
The orgasm crashed through you like a violent wave. Your whole body shook as intense pleasure ripped through every nerve. Wet, sloppy sounds filled the room as your pussy clenched and gushed around his thumb.
“Ah-fuck, Jooyeon!”
“Fuck, you’re so hot,” he groaned, leaning down to kiss you hungrily, tongue sliding into your mouth. You kissed him back just as desperately, still riding the aftershocks.
Even as you came down, his index and middle fingers kept lazily playing with your soaked folds, occasionally pushing halfway inside your pussy, just enough to tease without overwhelming you.
You broke the kiss, panting hard. “If you don’t fuck me right now, I’m going to lose my mind, Jooyeon.”
He laughed softly against your lips and pulled back slightly. “But I really want to taste you, Noona…”
He brought his glistening fingers to his mouth and sucked them clean with a satisfied groan.
“So fucking sweet.”
Then he leaned down again, kissing you messily so you could taste yourself on his tongue. You moaned into his mouth before pulling away, eyes glassy with need.
“Lee Jooyeon… as much as I’d love that, I need that damn cock inside me right now.”
Jooyeon’s gaze darkened instantly at your desperate words. He grabbed your thighs and spread them wider, rubbing the thick head of his cock up and down your dripping slit.
“Such a greedy noona,” he murmured, voice rough. “You want it that badly?”
Without waiting for another answer, he pushed forward. The blunt head stretched you open, slowly sinking into your tight heat. You gasped sharply at the intense pressure, nails digging into his shoulders as he worked himself deeper inch by inch.
“Fuck… so tight,” he groaned through gritted teeth, eyes squeezed shut for a moment. “You’re squeezing me so hard, Noona.”
He bottomed out with a deep thrust, the overwhelming fullness making your head spin. Jooyeon stayed still inside you, letting you adjust to his size. His forehead pressed against yours as he breathed heavily, trying to control himself.
After a few seconds, you whimpered softly. “Please… move, Jooyeon.”
He started with slow, deep strokes, then gradually picking up the speed. Wet, filthy sound of skin slapping against skin filled the room, mixing with both of your growing moans. He fucked you harder, one hand gripping your hip for leverage while the other grabbed your breast, pinching and rolling your nipple between his fingers.
“Tell me how it feels, Noona,” he rasped, thrusting deeper. “Tell me how good my cock is stretching you.”
“So so good…” you moaned obediently, voice shaky. “I love your cock… I love how you’re stretching me.”
Jooyeon couldn’t tear his eyes away. He swore it was the most erotic thing he had ever seen: you, the woman he had secretly wanted for months, now under him, getting fucked senseless telling him how much you love his cock. The sight and the noise, if not already, made something primal stir inside him.
He brought his hand back to your throat, wrapping his fingers around it with the perfect amount of pressure. Oh he knew how much you loved it, by the way you respond by squeezing his girth. His hips snapped faster, pounding into you harder and deeper.
Your mind started going hazy, pleasure clouding every thought. All you could focus on was the feeling of his thick cock dragging against your walls and the tight grip around your neck. Another orgasm was quickly building, even stronger than the first.
“Fuck-’m not gonna last,” he groaned, voice rough and desperate.
His hand was firm on your throat, squeezing with the perfect pressure. “This pussy is too good. So wet and tight, sucking me in like it was made for me.”
His hips snapped faster, pounding into you relentlessly.
“I’ve jerked off thinking about this for months. Imagining filling you up, breeding this pretty cunt. You’re mine now, Noona. Gonna cum so deep inside you.”
The filthy words sent you spiraling. “Jooyeon… fuck-”you gasped, eyes rolling back as your body tensed.
Your walls clenched hard around him as your orgasm crashed over you violently. “Jooyeon-!” you cried out, body shaking uncontrollably.
Jooyeon cursed loudly, dropping his face to your nape. “Fuck, I’m cumming-”
He came hard with a deep, desperate moan, thick ropes of cum spilling deep inside you as your pussy milked him through both of your orgasms. You trembled together, locked in intense pleasure, until you both collapsed, breathing heavily against each other.
Jooyeon slid off you and layed onto his side. Before you could even move, one arm slipped beneath you, pulling you against him. He spooned you from the front his skin warm and comforting.
“Noona…” he murmured against your hair.
You tilted your head up to look at him. “Hm?”
“How did I do?”
A soft laugh escaped you. The question was so absurdly innocent after the way he’d just ruined you. His feral edge had completely melted away, replaced by that boyish expression you knew daily.
“You know you did good, Jooyeon-ah,” you whispered, brushing a blonde strand of hair from his forehead.
The words and your action hit him instantly. A blush spread across his cheeks, but it was quickly followed by a smug little smirk that wiped away every trace of innocence. His hand slid down your back, fingers pressing into the curve of your ass as he pulled you even closer.
“I’m getting hard again, Noona…”
You groaned, a bit exasperated, mostly amused. “Shut it. I need to shower again because of you.”
He let out a low whine, burying his face in the crook of your neck, lips brushing your skin.
“Just one more minute… please?” His arms tightened around you, possessive but still somehow pleading. “Let me hold you a little longer."
You sighed, already knowing you were going to cave.
How could you not? He was your good boy, after all.
☼ made with love
— © BACKSTAGEKISS 2026. please don’t repost, copy, translate, or claim this work as your own.













