𓄲 His fingers flex on top of yours, "Curious," he says after another open-mouthed kiss to the column of your throat. Teeth closing around your skin, he pulls the tender flesh past his lips and bites down. "He seems like a decent guy," letting go, he soothes the sting with his tongue, "How do you know him?"
전정국 x f!reader ˖ ࣪ ꉂ🗯˙ ‹— cw dilf!jungkook single dad jungkook nanny!reader 1980s au slowburn fluff angst (eventual) explicit content age gap (jungkook is 30, reader is 20) oc!cassian/oc!rayne (jk's children) highkey jealous!jungkook a very messy attempt at an anatomy lesson (I tried okay) very suggestive dryhumping sloppy sloppy kissing jungkook is on some bullshit in this one marking!
⧽ word count ⋮ 9k
average reading time ⋮ 45 minutes
── [ ✉️ ] I kind of hate this, but I also love it? Some parts irk me, others fuel me, I'm torn okay. Anyway, Jungkook decided around 80% of the plot in this one, he was behind the wheel and I was tied up in the back. When I said no more porn I didn't mean it literally okay, this isn't sex but fuck it is close. Oh and HW would not be HW if OC as a med student did not use Jungkook's glorious body for an anatomy lesson. Okay, let me know what you think, and if it was horrible then don't come for me please. Feedback in the comments/reblogs and asks are much appreciated <3
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chapter 21 — "Heartbeat"
You had not imagined finding yourself back at the large mall a mere week after picking out Rayne's birthday present. No less could you have ever thought that your return here would be in search of Christmas gifts for the two children. Had it been busy last week, then it was undoubtedly worse today. With only five days to spare before the day itself, people were resorting to violently elbowing each other toward the shelves to snag the last items for themselves.
Without the firm grip Jungkook keeps on your hand as he weaves through the crowd you're pretty sure you would've been trampled to the ground by now. He'd come to pick you up around noon after dropping Rayne and Cassian off at their grandparents' as he suggested that you do the shopping together — and you had not been one to decline.
When you thought about it, you don't think you had ever been outside with Jungkook — unless you chose to count the multiple car rides, which you didn't. Though the crowded mall wasn't exactly a romantic scene. Sweat and pungent women's perfume make the hot air uncomfortably sticky, you've bumped shoulders with at least a handful strangers already, apologizing with a quick bow of your head before Jungkook pulls you forward.
"Didn't think it was going to be this packed," he mutters when steering clear of a group of teenage girls, at least half of them letting their eyes linger on his bypassing frame. Perhaps it had something to do with the fact that he stood out in his dress pants and the tight fitted, navy fleece — which seemed to be the only garment he possessed that wasn't a button up.
You snort, fingers lacing a little tighter between his. "Christmas is next Thursday, we're not the only ones on a last minute run."
He doesn't say anything in response to that but judging by his tense posture — this was not his ideal setting. His eyes dart around the crammed room you stand in, its high walls make each conversation echo loudly and in the distance the piercing scream of a discontent child rings out. A fountain sits in the middle of the bottom floor, water rippling from the top, the sound would have probably been soothing, had you been able to hear it.
Jungkook spots the escalators ahead and starts tugging you in their direction, cutting through the mass of people like a man on a mission. When you reach them he steps aside, allowing you on first before taking his spot behind you.
Turning around to face him, you lean against the railing as the moving stairs take you to the second floor. "May I remind you that this was your idea?" The teasing lilt to your voice has him frowning and Jungkook makes a clicking noise with his tongue as he averts his gaze, studying his surroundings like he expects them to suddenly charge at him with knifes.
"I'm starting to regret it," he sighs whilst running an inked hand through his dark hair. A loose strand falls across his forehead and you reach out to push it back. The action feels natural, domestic almost. He doesn't stop you, gaze trailing the path your finger takes closely.
Standing one step higher makes you tower over him and Jungkook tilts his head back to peer at you through his lashes. The sigh he lets out fans across the lower half of your face warmly and you resist a small smile. "We'll be in and out, thirty minutes tops." You tell him the lie in full confidence, knowing very well that the long lines would probably amount to that time alone.
But he doesn't question it, simply nodding as you step off the escalator and take in the array of stores on the new floor. To the left you spot a pop of color that screams 'Toy's' and you immediately move toward it — only to be stopped by Jungkook's tug to your hand.
Confused, you send him a glance over your shoulder. "Let's split up," he says, "I have somewhere to go." When the puzzled look you wear doesn't ease up he lets his thumb brush across your knuckles, "I won't be long."
Dumbfounded, you finally bring yourself to nod. "Yeah— Uh, sure."
Jungkook hums, jerking his chin in the direction of the toy store you had been headed toward. "I'll meet you there when I'm done." Then he lets go of your hand and takes a step back, clearly waiting for you to move first.
You hesitate for a second before mutely agreeing and spinning on your heel. Part of you wants to check if he was still standing where you had left him but you decide against it, focusing on making it to your desired destination without getting overrun by the hoard of people.
The air inside the toy store itself is even hotter than that of the mall outside, and as expected, the space is filled to the brim with parents, all in search of presents for their children. Somewhere in the distance a Christmas carol plays through a crappy speaker, barely heard over the ambience around you. Slowly you begin making your way down the many aisles, scanning the options available as you chew on your bottom lip.
An older man shoves past you suddenly, causing you to stumble on your feet. By the time you've regained your balance he's disappeared around a corner, not to be seen again. "Bastard," you grumble as you pull yourself together.
You go over the mental list you had made of Cassian's wishes. When passing by a shelf of stuffed animals your eyes instinctively scan for a dinosaur one, he hadn't specified which he would like, so you figured that the green stegosaurus would work. Turning it over in your hands, you inspect it closely before nodding to yourself.
As you wander through the store, your mind loops back to Jungkook with a frown. Where had he gone — and why couldn't you tag along? The answer was written before you in bold and yet you dared not entertain the idea that he might be getting something for you.
Teeth sinking further into the skin of your lip, you ponder on what to get him. You could hardly afford anything on the pricier side, what would he even want? Jungkook revealed so little about himself, making your decision nearly impossible.
Up ahead, there's a section dedicated to shiny toy cars and you slow down when walking past it. Cassian had mentioned wanting something like that as well. Your fingers hesitate over a blue one, just about to reach for it when a patch of color catches your attention. Turning toward another shelf further down the aisle, you find what you hadn't thought existed until now.
Rainbow crayons.
The toy car is abandoned entirely as you head for it, gaze locked on the small jar as you swerve through the crowd. In fact you're so focused on getting to the damned crayons that your surroundings completely fade into background noise. It's not until you have it clutched between both hands that you finally exhale a breath.
Tilting the box in your palms, you study it with a pleased smile, Cassian would be overjoyed. And the price tag wasn't half as outrageous as you had feared — though it pushed your budget enough to exclude the shiny, plastic car from the equation.
"Lovely lady, is that you?"
A familiar voice pulls your attention from the colorful crayons and you glance up in time to see Namjoon gently stepping around another woman as he approaches. He's dressed in denim on denim, which, was an interesting fashion choice that you chose not to comment on. The pale blue fabric contrasts the bleached ends of his hair well though and he offers you a warm smile when coming to a halt before you.
"It would appear so," you hum as you find yourself reciprocating the greeting. Had it not been for his memorable face, you think you might've had trouble recalling who he was. Your thoughts had admittedly been quite preoccupied with the Jeon family — the brief encounter with Namjoon was quickly shoveled to the back of your mind.
You're surprised he even approached you to begin with, though grateful nonetheless. "Think I picked the worst day to come out here," he says when throwing a pointed glance around the crowded store.
"I reckon it'll only worsen the closer to Christmas we get," you shrug, knowing very well that both prices and customers would skyrocket by the 24th.
Namjoon nods, then his gaze drops to the rainbow colored crayons you still clutch, not to mention the stegosaurus shoved under your arm. His brows arch a little higher on his forehead and his eyes quickly snap up to yours, the questions stirring behind them. "You got kids?" he suddenly asks and you could've sworn your heart plummeted to your stomach.
"O-Oh, no, no—" shaking your head, you busy yourself by fiddling with the plastic jar between your fingers, hoping he won't catch on to your flustered expression. "No. No, I don't," you exhale a quiet breath, "I um, I babysit two, well, I'm their nanny I suppose." A strained cough later, you add, "They're not mine."
Your words come out a jumbled mess but they seem to make perfect sense to Namjoon, whose shoulders relax a fraction. "Ah, I see," he says with a lopsided grin, "It's really kind of you. I don't think I've heard of a nanny who buys presents for the kids."
You want to object by saying that they weren't just kids to you. Rayne and Cassian were special, really special. Regardless of you spending the holidays with them or not — it would feel wrong not to get them something. It's during said thought process that you realize Namjoon was scouring for gifts inside a toy store as well.
Lifting your gaze, you meet his quietly, "And you?" You tilt your chin in the direction of the doll he was holding, having just noticed its long, brown hair and purple dress.
Namjoon shakes his head, "No. This one's for my niece." He holds up the doll with a tilt of his lips. "Though I can't say that my family isn't hot on my heels about the matter," heaving a sigh, he continues in a somewhat sarcastic tone, "Thirty-three years old and I'm beyond my prime it seems."
His blunt admission makes you pause, eyes widening a fraction as you blink. Thirty-three? That would make him three years older than Jungkook and— Actually, you didn't want to think about the rest.
Your awkward chuckle is what fills the short silence as you think of something else to say. It wasn't that you disliked talking to him, quite the contrary. But Namjoon had this natural charm around him that made you want to impress him — for whatever reason.
"You don't seem like a last minute type of guy," you finally muse, nail flicking idly against the plastic lid of the jar in your hands.
Namjoon hums, "I'm not," he says when running his fingers through his short hair. "I was out with my mother the other week— Oh yeah, we bumped into you back then too, how silly is that?" His lips stretch into a wide grin that has dimples dent into the soft skin of his cheeks and you swallow. "Anyway, me and my brother, Jin, ended up buying duplicates for his daughter," he sighs, "It was a whole mess. Long story short, the coin toss ended with me having to go out and find something else for her. "
He adjusts his grip on the doll, regarding it with a thoughtful look. "She likes to play with her stuffed toys, I'm hoping this will do the trick as well."
"I'm sure it will," you say, "How old is she?"
Namjoon's lips part, the answer waiting on his tongue when he suddenly goes silent. Frowning, you're just about to ask the matter when a cologne you recognize all too well invades the space between you.
Jungkook's presence is felt before it's seen, the quiet loom of his shadow as it creeps up beside you, blocking off half the aisle with little care. He's holding not one but two bags, both from brands you recognize to be high end. Though that's not what catches your attention — not really. No, it was the brooding expression glued to his face, dark eyes lingering on Namjoon's friendly ones.
"Oh— That was quick," you hum, suddenly feeling awkward as you stand between the two men.
Next to you, Jungkook simply nods. Gaze briefly straying from where they had been fixed to Namjoon as he sends you a glance. "It was," he agrees lowly.
Shifting on your feet, you clutch the jar of crayons a little tighter. "Uh, right. Jungkook this is Namjoon," gesturing vaguely to the man in front of you, "Namjoon, this is Jungkook."
Unfazed by the fact that the hot store seemed to have turned a good couple of degrees colder, Namjoon extends a warm hand. "Hey," he says in a light voice, "Nice to meet you."
Jungkook regards his outstretched palm with a scrutinizing look that he quickly masks again. After moment's deliberate hesitation he reaches out to take the offered hand as the former gives it a firm shake. He does not greet him back, but his features have schooled themselves into a weak attempt at something more relaxed.
"The boyfriend I presume?" Namjoon asks, his smile doesn't waver but his gaze is calculating when the darts between you and Jungkook.
Boyfriend. The label slices through you like a knife, twisting your stomach in all directions and you nearly chuckle at the absurdness of the question. But Jungkook hasn't moved an inch beside you, apart from withdrawing his hand the second he got the chance. His jaw is clenched hard enough for the muscle in his cheek to strain and you rush to clear your throat.
"No he's uh— I'm the nanny to his children," you hurriedly explain, hoping he wouldn't catch on to how tightly the stegosaurs was squeezed against your side.
Your answer has confusion striking his features as Namjoon lets his attention shift between the two of you. Perhaps he found it strange that you would be out Christmas shopping with your supposed boss — you wouldn't blame him.
But if he had any opinions, he kept them to himself as he flashed you another smile. "Ah, my apologies" he says, though doesn't actually sound regretful as he his eyes settle on you. Or perhaps you were imagining things…
Namjoon is quick to effortlessly move the conversation forward, smoothing over the small bump like it was nothing. "My mother won't stop raving about you," he says, his now-free hand finding its way to his jean pocket as he takes on a more casual stance.
The giggle that slips past your lips is lighthearted, all ready feeling more at ease. "She's still going on about dinner?" You wonder, grateful for the subject change.
He hums, "That's putting it lightly." Namjoon shakes his head, "I told her you must be busy during the holidays and to not fret so much."
You're about to suggest setting up a date around New Years when the sudden weight on your waist steals your voice. Jungkook's hand is firm where it rests on your hip, and if you had somehow managed to forget about his presence — this was certainly a stark reminder.
"She is," He says, tone flat and devoid of any emotion. Your elbow nearly jabs him in the side when he tugs you closer, the plushie squished between you until it was unrecognizable. Jungkook doesn't seem to notice — he's too busy sizing Namjoon up with his eyes alone as they peer at him with quiet intensity.
You send the other a small smile, fingers curling hard around the box of crayons as you pray this entire conversation be over as quickly as possible. "Yeah uh, Christmas is quite busy for me," you say, offering him an apologetic look.
"Of course," Namjoon shrugs, like it was no matter, "I'm sure we'll find time." The corner of his lip twitches into a lazy grin, just enough to show off his white teeth. "Well then," He gives a dramatic bow and you resist another giggle, "I hope to run into you soon again, lovely lady."
With that he takes his leave, quickly disappearing through the crowd of people as he heads for the register. You're left standing by the art supplies with Jungkook attached to your hip — literally. He has yet to say anything and when you turn your head, you find him staring after Namjoon's retreating figure silently.
His hand is firm on your hip and it seems he's got no intentions of letting go in any near future. "Are you done here?" He asks when finally tearing his gaze back to yours, his voice has softened back into the one you've become so accustomed to and you exhale a relieved breath.
"Yeah," you say, allowing him to lead you through the store, never once letting go of you.
For the next hour you wait in more lines than you do any actual shopping. After securing the two presents you were to give Cassian, you had spotted a makeup store not far off, quickly pulling Jungkook in it's direction. He had made no verbal complaints, only looking very puzzled as you went through the different sections of the store.
"Do you think she would like the blue- or pink-themed one?" You had asked him when holding up two eyeshadow palettes in front of him. He had studied them both closely, the frown on his face deepening tenfold as he grumbled the options to himself.
Finally he had croaked out a quiet 'Pink?' to which you had playfully shoved his arm and called him stereotypical. From that point on he'd let you lead the way through the rest of the store, linked together by the lock of your hands, Jungkook followed you like a shadow.
Since your brief encounter with Namjoon, he had been even quieter than usual, you had tried to brush it off as something that had to do with the hot and over-crowded mall but even the car ride home was void of conversation.
He made no comments about the gifts you had bought, no further inquiries about Namjoon, which you were quite grateful for. And when the engine cuts as you roll up to the tall building you call home, Jungkook wordlessly gets out as he rounds the car to hold your door open before you can even attempt to do so yourself.
He retrieves the presents from the trunk, slamming it shut with a little more force then necessary as he turns and heads for your apartment complex, leaving you to scramble after him.
Despite you insisting that you would be fine, Jungkook still carries your bags up the stairs and to the third floor. He assures you that it's no mind and a small part of you can't help but wonder if he was merely trying to prolong his departure — in either case, you were not complaining.
Soon you find yourself on your doorstep, the sound of a rusty key jamming inside its lock as you twist it open. Jungkook hasn't said a word since holding the entrance door open for you and when you turn to face him, he regards you quietly. It feels wrong to just tell him goodbye and send him on his way even when that was probably what was expected of you.
Your fingers hesitate over the door handle, tongue pressing against the roof of your mouth as you swallow thickly. "Do you…" Tapping quietly on the cool metal, you blurt out the rest of your sentence, "Would you like to come inside?"
For a second you think he might reject the offer, say that he was late to picking the kids up from their grandparents' and leave. But actually Jungkook nods, his expression betraying nothing of what he thought. So without pondering the idea further, you push the door open with your shoulder.
This was not the first time Jungkook had been to your apartment yet it feels like a whole new experience when you make your way down the hall that leads to the living room. You weren't a messy person by any standards but your flat certainly doesn't compare to that of his large and spotless house. "Just uh, make yourself at home," you say, gesturing vaguely toward the couch.
Doing as he's told, Jungkook takes a seat on the cushion, looking very much out of place on the mundane piece of furniture as he takes in his surroundings. You realize that his previous visits here had been very short lived and it wasn't until now that he'd actually gotten to stop and properly look around.
The mess of old mugs on the coffee table make you cringe and you scurry over to collect them clumsily. "Can I get you anything to drink?" you ask when straightening back up.
Jungkook's gaze flickers up to meet yours, "Water will be fine," he says.
Nodding, you turn on your heel as you dart for the kitchen, eager to escape his line of sight for a moment. You don't know why you were so nervous about having him here. Placing the dirty mugs in the sink, you mull over the feelings stirring inside your chest. You had been alone with Jungkook multiple times before, hell, your entire day had been spent in his presence at the mall.
What made this any different?
The still air maybe, or the fact that you no longer had the distraction of crowded stores or the children hovering around you. Or maybe it was because whenever you and him found yourselves completely alone — you always seemed to cross dangerous boundaries.
You think of last night. The drinks you had shared in the shadows of his study, tucked away from the rest of the world. You think of the way his lips had felt on your neck, his hands on your thighs when he placed you on his desk and the caress to your back as he held you close. You think of the reluctant shower you'd taken when arriving back home, grieving the scent of him on your body as it washed away under the hot steam.
"Enough," you mutter when pulling a cabinet open. The memories of yesterday are pushed to the back of your mind as you turn on the faucet and fill two glasses.
Jungkook is still lounging on the couch when you return to the living room. One hand is stroking the armrest beside him idly but his eyes lift upon your arrival. Your feet move soundlessly across the floor as you approach, handing him one of the glasses which he takes with a murmured thank you.
For a little while the two of you simply exist together in the small space of your apartment, with you having yet to take a seat as you sip on your water. Jungkook does the same, his gaze fixed on you over the rim of his glass. It's not until he leans over to set the drink down that his attention shifts to the textbook thrown across the coffee table.
He studies it for a moment, inked fingers brushing across its cover as he picks it up. "Oh, yeah…" rubbing the back of your neck awkwardly, you nod toward the book, "I have this big exam tomorrow, was doing some last minute studying this morning."
Jungkook hums as he reclines back against the cushion, flicking the pages open with his thumb as he skims them aimlessly. When he turns back to you, it's with a cocked brow, "Are you prepared?"
The question has the water slipping down your throat as you blink dumbfoundedly in his direction. "I mean, I think so…?" You knew that you hadn't given your studies enough attention during the course of the last two weeks, the man before you was partly to blame for that. "It's a lot of material but I've revised it all at least once," you then say whilst adjusting your grip on the glass.
He doesn't respond right away, still skimming the page he'd landed on before finally closing the book and tucking it between himself and the armrest to his left. "Alright," he muses, "Then show me."
Had it not been for the deathly hold you kept on your glass of water, it would've kissed the floor the same way your jaw currently was. "What—?" you splutter, thinking you might've misheard him somehow. But Jungkook simply folds his arms across his chests as he flings both legs up on the foot of the L-shaped couch. It was then you realized that he was being completely serious.
"I wouldn't even know where to start—" shaking you head, you try to brush the idea off again, "And there's so much, I'll bore you." Not only was the prospect of potentially boring him on your mind, but so was the thought of wasting the little alone time with him on something as mundane as studying.
Unfortunately, Jungkook isn't letting up. His stare could've probably coerced just about anyone into compliance and you were no different.
The sound of your glass hitting the coffee table echoes off the four walls that surround you. "Can I at least go grab my notes?"
That was how you found yourself next to Jungkook on your couch, in your living room, in your apartment — alone. You sit curled up beside him, eyes fixed to the notes in your hands, supported by your thighs as you read them over again and again — your brain never actually picking up the words so messily scribbled down.
As you quickly revised, Jungkook took his time flipping through your textbook. After prying a chapter number out of you he was now reading the material closely, eyes squinting slightly in the absence of his glasses.
You gnaw on your bottom lip when sneaking a glance at him, gaze fleeing back to your notes when he suddenly looks your way. Another two minutes pass in tense silence where you repeat the scribbled key words like a mantra.
Then the notebook is suddenly snatched from your grasp as Jungkook's tattooed hand closes around its edge. He's put the class material aside and is now scanning the pages you've written for himself. When you attempt to retrieve the essential guide, he simply pulls it out of reach. "Time's up," he says.
You almost fling yourself over him to get your notes back, only to realize how stupid that would look — and how close you were already sat. His cologne, always lingering in the back of your mind, infiltrates your nostrils with your next inhale. His arm is warm where it rests against your own, his head tilted just enough for you to meet one of his dark eyes as he studies you.
"Well?" He prompts when folding his arms back over his chest and sinking back against the cushion. His expression is expectant, even more so than your stern no-nonsense professors and you feel yourself beginning to sweat under the sudden attention. "Start simple," he then says and you nod.
Clearing your throat, you mentally go over the notes once more. The exam was your biggest one yet, focusing on both the human lungs and heart. "I— Um, the heart…" you begin, hands fiddling awkwardly with one another, "It's the body's most vital organ as it provides oxygen to our cells and maintains our blood pressure."
Jungkook hums, never once taking his eyes off of you. "Where's it located?"
You roll your eyes at that, "Oh come on. You know here."
But he only shrugs, "What if I don't?" You were no fool to what he was trying to do here. Acting completely clueless to pull as much information from you as possible. It would be a lie to say that it didn't amuse you, if only a little — because Jungkook was far from stupid, though getting to experience him like this, even if it was only pretend, fueled something in you.
"It's located in your chest, just behind your sternum, in front of your spine — though it's positioned slightly to your left." Reaching out, you point to where his heart would be beating just under the tight fleece he wears.
Jungkook's gaze tracks the path of your hand, humming softly to show that he was following along. "How?" He then asks, tilting his head a fraction to the side, "How does it give me oxygen."
You pull your bottom lip between your teeth, "Well, to explain that you first need to know how the heart is built." There's brief hesitation where you search his face for clues, but he's just watching you, wordlessly urging you to keep going.
The next breath you take comes easier, some of the tension draining from your shoulders as you hone in on one of the things you were most passionate about — the human body. "The heart is made up of four chambers and they all serve different purposes," you explain, "The atria are the two chambers at the top of your heart, and the ventricles sit at the bottom."
Your finger points to where you think each one would be, approximately at least. Jungkook lets you without complaint, his chest rising and falling slowly with each breath he takes. "You're quite a hands-on teacher," he then muses, causing you to forget your next sentence as you huff exasperatedly.
"I'm just trying to show what I mean…" You mutter, quickly withdrawing your hand from his torso when you realize how long you'd let your touch linger.
Jungkook eyes you for a moment without speaking until he abruptly leans forward. You barely have time to ask the matter as he reaches behind him, grabbing the back of his shirt as he tugs it over his head in one swift motion.
"What are you—?"
The spluttered question falls flat as he tosses his shirt over the armrest on the other side of him. He raises a brow at your perplexed and slightly flabbergast expression, the corner of his lip twitching before he forces it back into something more neutral. "Giving you access," he says when leaning back against the couch to get comfortable again.
Your brain short circuits as your attention falls on his naked chest — the one you'd only had the privilege of seeing on one previous occasion. And now he was suddenly offering himself up as revision material?
Finally pulling yourself together, you shift in your seat as you turn to get a better view. "Right," you clear your throat, "Like I was saying…"
"The atria and the ventricles?" he finishes for you.
"Yes, that." Fumbling to gather your bearings, you will your mind to focus on where his heart would be and not the distracting sight of bare skin. "The uh, the chambers can be divided into left and right." You're hesitant to reach out again, more so for your own sake than his, but in the end you do — finger pointing to his chest where you had felt the steady drumming of his heart.
"The right atrium receives oxygen poor blood through the vena cava. There are two of them, one superior and one inferior and they both work slightly different…" You trail off, eyes flickering up to meet his, only to find Jungkook already watching you intently through dark lashes.
"How so?" He asks.
"Well, the superior one delivers blood from your upper body, such as your head, throat, chest and even your arms." Gesturing vaguely in the direction of his painted arm, you then continue in the same breath, "The vena cava inferior transports blood from your lower body, that blood travels through your veins but to defy gravity and actually make it back to your heart they rely on different mechanisms to help them."
Your hand slides down to his forearm, gently pushing it back against the upper one as you try not to linger on the way his bicep contracts at the motion. "When your muscles are in movement they squeeze your veins, forcing the blood upward and with the help of one-way valves that open and close, the oxygen poor blood is ensured to not run back down again."
Jungkook lets you manhandle his arm back and forth a couple of times, more than what was actually necessary for the explanation but he makes no move to stop you either. "And if I'm not moving?" He wonders, brows furrowing slightly on his forehead, "Then what happens?"
"You also have your respiratory pump," you hum, recalling the revised material a lot easier now. "When you breathe your diaphragm moves," abandoning his arm, your palm comes to rest on the center on his torso, just below his chest at the base of his ribcage, "It creates a suction effect in your chest cavity which draws blood upward."
Under your hand, Jungkook's chest expands as he takes a deep breath, like he was testing the theory out for himself. "Makes sense," he muses on his exhale.
You nod, debating on pulling back entirely but instead deciding to just let your touch return to his heart instead. "Right so, the right atrium then delivers the oxygen poor blood to the right ventricle which in turn sends that blood to your lungs in order to enrich it with oxygen again. That part is a little confusing to explain as the functions of the veins and arteries trade places."
The corner of Jungkook's lip twitches, "I'm sure I can keep up."
Heat crawls up your neck at the confidence in his voice and it makes you waver for a split second before you clear your throat. "The uh, transportation of oxygen poor blood to the lungs is not done with veins rather the pulmonary artery. When you inhale your lungs become full of oxygen which is given to your blood through diffusion. This is possible thanks to the capillaries which are walls thin enough to let the exchange happen. It is the same way oxygen is exchanged everywhere throughout your body."
You pause to make sure that he was following along, shyly lifting your gaze from where it had been glued to his chest. Jungkook is regarding you quietly, he's made no attempt to interrupt you and the look in his eyes made your stomach flutter in a way it certainly shouldn't when you were revising anatomy.
"The er— exchange itself then fills our lungs with carbon dioxide which is what we then go on to exhale. Moving on, the oxygen rich blood is transported back to your left atrium through the pulmonary vein. That chamber in turn pumps the blood to your left ventricle which sends it out to the rest of your body."
By the time you're done explaining the basics of the heart itself you're left with your own hammering in your chest — and that was without going into any detail on the different conditions such as heart attacks.
Jungkook hums in understanding, nodding once like you had made perfect sense. The silence between you stretches long and awkward for nearly ten seconds after that and you fumble for something to fill it with, ultimately landing on rambling more information stored at the top of your head.
"Further more, an adult heart, when relaxed should beat anywhere between sixty to a hundred beats per minute, anything above that can indicate high blood pressure." A quick glance at his toned arms and the whisper of muscle on his stomach has you continuing, "Though fit individuals may sometimes have a lower resting heart rate, somewhere around forty to fifty beats per minute."
Jungkook cocks a brow at that, his gaze landing on the hand you still kept over his chest. You barely have time to register what he was doing before the warmth of his palm presses down across your fingers, bringing you closer to his beating heart.
"What's your diagnosis, doc?" He asks when tilting his head to the side.
Completely thrown off balance, it takes you a moment to understand what he meant and you quickly distract yourself by trying to count the slow and steady beats his heart gives. Your apartment is silent, save for your joint breaths and the soft creak of the couch when you shift on the cushion. The rhythmic thumping under your hand never falters, its calm and steady beating almost pisses you off — how was it so easy for him to remain unaffected as he sat shirtless in your living room?
When you think a minute might've passed you gingerly pry yourself free of his grip. "Well, it's impossible to say since I can't time it properly right now — but I'd say it's normal."
Jungkook seems satisfied with your answer. He doesn't say anything for a while, leaving you to rethink the entire interaction as you gnaw on the inside of your cheek. Then he suddenly turns, twisting himself just enough to face you better and a second later his fingers dip beneath the neckline of your shirt, hot palm finding your heart as he presses it against your skin.
You want to ask what he was doing, like it wasn't obvious enough. But you can't seem to get a single word out, forced to sit there as Jungkook feels the embarrassingly rapid beating of the traitorous organ in your chest. You toy with the idea of holding your breath forcing your heart into submission but ultimately decide against it as Jungkook's dark eyes meet yours.
"Yours is beating fast," he notes, hand still present against your chest.
The huff that escapes you falls somewhere between a laugh and a strained plea. "Yeah uh— There's explanations for that as well," you tell him, immediately regretting it when his expression lights up with interest.
"Such as?"
"Well there's many… Norepinephrine, sudden adrenaline surges and involuntarily fight-or-flight responses. They all cause your heart to beat faster." You ramble on as you avoid his gaze, finding the armrest behind him most intriguing.
Jungkook hums, "Why now?"
You have half a mind to tell him off. He was not stupid but neither were you, and you knew when someone was pushing your buttons. Still, the only response you can manage is a weak scoff and a pathetic excuse, "You took your shirt off…"
The fleece lays discarded to his left, but Jungkook pays it no mind. His fingers move absently across your skin, tracing small, messy patterns there. Eyes darting back and forth between his hand under your shirt and your face, like he was considering something. "And if you took yours off? My heart would beat faster, yes?"
You're certain he can feel the beat your heart skips in your ribcage, the hitch in your breath as his proposal registers. You tell yourself that you were past the terms of modesty since long — Jungkook had seen you in less, and still, this conversation makes you want to hide just as much as it makes you want to kiss him.
"Well—" you begin with a slight stutter, "Not necessarily, you'd need to be attracted to the person you're seeing."
At that he leans closer, his attention dropping to the faint outline of his knuckles through your shirt as he presses his index and middle finger over your heart. Then he lifts gaze, "I am," he calmly states. His free hand finds the line of your jaw, fingers closing around it on a soft embrace when he leans in to press his lips against yours.
You sit there like a stature for a good three seconds, trying to piece together what he'd just initiated before leaning in as you invite his tongue inside your mouth with a breathless gasp. The kiss is soft, it feels like him, scarily familiar in a way you should've never let it become.
His fingers slip out of your shirt, curling into your hip as Jungkook tugs you onto his lap like he was moving air. Both hands settle on your waist and your own palms brace themselves on his shoulders without having to be told as you kiss him harder, all thoughts of studying flying out the window in favor of the man on your couch.
He toys with the hem of your sweater, tugging on the fabric just enough to pull your attention away from the lock of your lips. Despite the heat that smooths itself over your cheeks you still manage to maintain eye contact as you lean back enough to pull the garment over your head, tossing it to the floor just like you usually would when getting undressed after a long day.
Jungkook's gaze roams your chest unapologetically, lashes fluttering softly as he runs the pad of his thumb up your side. His hands slide to your back, tracing your naked spine as he pulls you closer and you let him steal your breath with another kiss.
Your hips move on their own, grinding down against him through the layers of clothes you wear — to which he responds by digging his fingers into your skin, pulling you down on him harder. The air inside your living room grows hot, outside your window the sun begins its slow descent down the horizon, basking you in all shades orange.
Last night had yet to leave your mind and judging by the way Jungkook hardens under you within the minute, it hadn't left his either. The sound of his groan vibrates on your lips, low and filled with desire he does nothing to hide.
Only when his fingers wrap around your wrists as he guides it across his collarbone do you pull back an inch. He says nothing when he moves your palm to rest flat over his chest, right above the now frantic beating of his heart. You feel it clearly, the quick thump-thump-thump as it slams against his ribcage from within.
When you meet his eyes you find them entirely swallowed by the black pools of his pupils, dazed with all the things he never said out loud. "Do you feel that?" he whispers, breath warm against your face. His fingers lock around yours as he presses your hand impossibly close, letting you experience the undeniable evidence of his pure want.
You nod, just a slow tilt of your chin which Jungkook mimics with one of his own. "Good," he says, but he doesn't let you go when he leans in to pick up the kiss he'd broken with renewed hunger.
Your other hand loosens its hold on his shoulders, sliding to the nape of his neck as he tips his head back to let your tongue slip inside his mouth. The ends of his hair slip between your fingers, fitting perfectly in your grasp when you curl the digits around them. Having previously lost their rhythm, your hips return to their slow grind against him.
Jungkook leans back from the kiss, lips pressing against the corner of your mouth, then your jaw, then the side of your neck as he showers you in affection. "Who was that?" he asks against you, the hand not currently keeping your own caged to his chest, grips your hip. When all he receives is a slightly confused hum from you, he adds in a lower voice, "Your friend," making sure to accentuate the latter.
Your body grows tense on top of his, brows pinching together across your forehead as you attempt to pull back enough to look at him — but Jungkook is not letting you go. His arm slides around your waist, keeping you perched on his lap as his lips stay latched on to your neck.
"Namjoon?" You finally splutter, fingers twiddling a strand of his dark hair between them.
Jungkook sighs out a small 'mm' between kisses, "That's his name?" He phrases it like a question even though you both know it isn't.
"Yes," you murmur, glancing down to where your hands lay locked over his heart. "Why are you asking?"
His fingers flex on top of yours, "Curious," he says after another open-mouthed kiss to the column of your throat. Teeth closing around your skin, he pulls the tender flesh past his lips and bites down. "He seems like a decent guy," letting go, he soothes the sting with his tongue, "How do you know him?"
Your brain short circuits as you try to make sense of what he was saying all the while he continues to lick and nip at your throat. "Uh, I've met his mom twice — by chance. Him once before," you say as you try to recall your past encounters with Namjoon, even when that was the last thing on your mind right now.
The answer has Jungkook humming noncommittally, the arm looped around you flexing slightly as he tugs you closer. His hips lift up to meet yours that had gone still, wordlessly urging you to move again.
You comply as you grind down on him, slower this time. "What matter is it anyway?" you huff, tilting your head to the side when his kisses trail back up your jaw, then your cheek.
Jungkook exhales through his nose, he nudges your palm flat against his chest, reminding you of the way his heart was currently beating like a dumbbell. "None," he says as his lips cover yours.
Your next kiss is laced with the emotions that had been left brewing since last night. Each roll of your hips sends a shudder through you, soft gasps spilling right into his waiting mouth. His hands return to your waist, guiding you back and forth over the bulge in his dress pants.
The subject of Namjoon is dropped just as quickly as it had surfaced and for that you're glad. All you can focus on his how Jungkook feels under you, against you, so close yet nowhere near enough. He hadn't asked about the boyfriend thing, hadn't brought up your dismissal of such a label being used on the two of you. Then again, you weren't an item to begin with.
Your fingers return to his dark hair, running through the strands like property signed in your name. His jaw goes slack when you tug on a few locks, a strained noise ripping from his throat as his hips jerk up to meet yours in a messy attempt at creating more friction. The sofa creaks under your joint weight, the slick sounds of lips and saliva smearing together mixed with your heavy breaths filling your living room.
The two of you would've probably kept going for a lot longer, had it not been for the sudden, ear-piercing ring that cuts through the hot air. Jungkook's grip on your hips loosen, his mouth slowing down against yours as he exhales.
"Ignore it," you moan against him, not wanting the moment to end because someone — God knows who — though probably Daehyun, decided to be a cock-blocker. But the shrill of your landline won't stop and you're forced to make the hard decision of tearing yourself off Jungkook's lap as you storm over to the device on your desk.
Fingers curling around the phone, you rip it from its designated spot as you press to accept the call. "Daehyun, I swear to God if this is—"
"Oh, there's a familiar voice."
Namjoon's chuckle makes you pause mid scolding, brows shooting high on your forehead. "Uh, sorry. I thought you were someone else," you quickly apologize, pulling your swollen bottom lip between your teeth as embarrassment floods you from head to toe.
"It's no mind," he says, "I've been calling around, going through everyone with your name in the phone book. Though since I never caught your last name I was going on the first. Turns out there's quite a few of you in the area." Namjoon's tone is lighthearted, a stark contrast to the conversation you had just been having about him.
"Well, you found me at last," you muse, finger tapping softly against the back of the phone. Somewhere in the distance a floorboard creaks and a second later Jungkook's arms slide around you from behind. He's put his shirt back on, the soft fleece biting into your back when his chest molds against you.
"I'm glad I did," Namjoon says and you were certain that Jungkook could hear his voice on the other end of the line. His head was lowered enough for it to, the tip of his nose skimming along the side of your neck as he inhales deeply, a sound you hope won't pick up on the receiver.
But Namjoon doesn't seem to be catching on as he continues, "I was calling about that dinner. I made the mistake of mentioning our run-in to my mother earlier and her nagging has only gotten worse." He clears his throat, "So uh, you don't happen to be free sometime after Christmas?"
It was the first time you had ever heard Namjoon appear even remotely hesitant. He was all charming smiles and confident conversation. The question was almost endearing, though Jungkook's arms, locked around your stomach makes your thoughts stray from the man on the phone as your heart races.
"After Christmas?" you echo, biting down on your tongue when a pair of wet lips meet the spot just below your ear. "I'll have to check my calendar but uh…" Another kiss to the juncture where your neck and shoulder meets has you suppressing a shiver. "Could I maybe get back to you on that?"
"Of course," Namjoon says, "Should be a lot easier now that my number is in your register." His laughter is something you're unable to reciprocate as Jungkook continues his assault to your bare skin, placing hot, messy kisses all over you with no intent of slowing down.
When the short call comes to a close you exhale a breath you hadn't realized you were holding. For a few long seconds you stand there, staring at the wall as Jungkook drags his lips across the slope of your shoulder.
Placing the phone back onto the machine, you twist in his arms as you turn to face him, causing him to finally pull his mouth back. He did not have to ask who had been on the other end and you did not have to tell him. The previous desire in his eyes had dimmed, replaced by something softer as he studies you in the warm afternoon sun.
"Sorry about that," you murmur, fingers picking at a loose thread on his shirt before flattening the fabric out again.
Jungkook only shakes his head, hands clasped over the small of your back. "Don't apologize to me," he says, brows furrowing across his forehead for a second, then relaxing again. Your close proximity did not fluster you as much as it had only minutes ago — though it still made fire burn hot in your veins. Should you kiss him again? Would he want you to? Maybe you—
"I should be heading out." Oh. You can't hide the flash of disappointment when it strikes your features, he must notice it too for he lifts one hand to cradle your cheek. "Told my parents I'd be picking the children up at five."
"Right, no of course." Shaking your head, you take a small step back in an attempt to put some much needed distance between the two of you, and allowing him to take his leave — only for him to stop you.
Jungkook's hand is firm on the low of your back when he reels you in, foreheads meeting as his lips hover a breath from your own — just shy of a kiss which he dares claim a second later. There's no tongue this time, no heat, just the gentle press of his mouth to yours. When he pulls back he does so carefully.
His thumb brushes the high of your cheek, "You'll do good on your exam," he says, the corner of his lip lifting at the flustered purse of your own.
"I'm not so sure about that" you huff, feigning indifference as you try to play it down again.
Jungkook hums, "I am." He leans in to press a kiss to your forehead, then he lets his hands drop back to his sides as he steps back. Your gaze trails after his retreating figure when he heads down the hall, slipping on his coat and shoes methodically, the flutter in your stomach having yet to die down.
With one hand wrapped around the door handle he turns to glance at you over his shoulder, dark eyes meet yours just like they had so many times this afternoon before he steps out.
Your apartment is awfully silent after his leave, goosebumps rising on your naked arms in his absence. With a begrudging sigh you turn to snatch you discarded shirt off the floor, pulling it over your head as you stumble toward the bathroom with the means of washing up.
The bright, white lights blind you when you flick them on and it takes you a moment to adjust. Twisting the faucet, you lean down to soak your face in cold water, scrubbing away the remnants of the heated kisses you and Jungkook had shared.
Part of you wonders what would've happened if you hadn't been interrupted. Would it be like last night? Maybe. You dared not think about it for too long.
You pat your face dry with the nearest hand towel, blinking at your tousled reflection in the small mirror. Admittedly, you had looked better. But as you lean closer to inspect the swollen state of your lips, your attention catches on something entirely different. Craning your neck to the side, your eyes widen as they drink in the hint of bruising to your skin.
Your fingers reach for the faint mark, knowing it would darken overnight. The bathroom light flickers above you but you ignore it as you trace the outline where Jungkook's mouth had once been — remembering what his teeth had felt like when they sunk into your skin.
── [ ✉️ ] Okay yeah, he was hot in this one I think. Doing way too much with the heart stuff, I did not plan for him to do that it was his own decision I need everyone to be onboard with this okay? Anyway anyway, hope this was okay, it was very all over the place yet nowhere at all? Not sure how to feel but I hope when we get to the next two chapters things will actually make sense.
"I asked chatgpt" okay well I asked Tumblr and- wait, one second- there's some new yaoi lore in the space fandom or something- oh my god is that Markiplier?
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