Chapter Text
Unsurprisingly, Hyunjin is first to awake despite having fallen asleep after you. Even without the exhausting pleasure gauntlet he subjected your body to, he would’ve woken first regardless; as a being who doesn’t require sleep, he doesn’t stay in that state for nearly as long as a human does.
And even then it’s not a “true” sleep; it’s more like a meditative state, that surely did help give his mind and body rest, but was wholly unnecessary when it came to his ability to function.
Given that he’s already forced the state once tonight, it’d be almost impossible to do so again as it’s simply not in his biology to do so. And despite himself, he still wants to linger; so he closes his eyes again, and though sleep does not return to him, he stays that way– holding you close, listening to your deep, slow breaths, his fingers lazily and softly tracing over your skin.
The meditative state he’d been in for the last few, entirely too short hours did thankfully offer some much needed clarity to his racing mind. Hyunjin, grappling with the fact that he lost control of himself, carelessly (or maybe instinctively, unconsciously), bared his fangs to sink into your skin and mark you like a werewolf would his mate left him both ashamed and frightened for what would come next.
It’s far from Hyunjin’s proudest moment, and never before has he had to grapple with the possibility of losing something important to him. There’s part of him that still doesn’t even fully understand why you’re important to him.
He’s a demon for fuck’s sake– demons don’t fall in love with humans, they manipulate humans to fall in love with them. They destroy human’s lives for fun, they take and ruin and feed until their prey is left with nothing, and then they move on to the next person.
And Hyunjin knew he was different from a standard demon, not just in physiology and intelligence but also in the way he approached life, but it still baffled him to realize just how different he truly was.
He did the exact opposite of what other demons in the same position as him would have done; he could have charmed you for an easy fuck where you think you’re in love with despite the fact that he would've been a stranger, and it would’ve, ideally, been enough to satiate his need to have you.
He could’ve avoided spendings months getting to know you, he could’ve manipulated you to suit his whims from the moment he formally met you instead of spending all his time to foster a real connection. He could’ve lied through his teeth at every moment, and while he certainly did lie, it was only ever necessary lies; he never, not even once, lied about something he felt or thought.
Every glimpse into his personality, ideals, likes and dislikes were all genuine. He could’ve just given you thoughtless answers that he thought you’d want to hear, never injecting his real self into the dynamic, but he didn't.
For reasons he couldn’t understand, he wanted you to love him– he thought at first it was simply because of his preferences whilst feeding, but now he knows it's more than that.
For reasons he can't understand, he wants you to love him, and not for some idealized man he crafted to meet your every need and preference. He wants you to love him for who he actually is as a person.
But.. he isn’t really a person; not in the way you are. Still, he followed that notion, and at every moment he was genuine; every look, every touch, every date and every gift– they were sincere admissions of a love he truly felt and wanted you to share, his proverbial heart being worn on his sleeve.
It reached a point where lying to you ate away at him, but he didn’t know what else he was supposed to do. In what reality did it make sense for him to confess that he’s a demon and for you to be okay with it?
And his mistake has forced him to confront that difficult truth much sooner than he had hoped to, has given root to the fear of rejection, loss, and unrequited love– human emotions he never expected to feel, that he thought he was incapable of feeling in the first place.
All he can do is pray that when he tells you the truth about who he is, you don’t turn away and rebuke him. And how ironic it is for him to pray for something– to want something so badly that all he can do is plead to the higher power he’s supposed to be against to grant him this selfish wish he doesn’t want to let go of.
Hyunjin has come to understand in his time with you that the relationship between humans and demons is more complex and codependent on his end than he would’ve initially given credence to. Maybe all it took to spark that epiphany was meeting the right person.
And how foolish he is, to devote so much time and love to a being whose existence will only equate to a mere fraction of his own, who is fragile and weak and without lasting power.
Maybe if he’s lucky, when you are met with mortality your soul will find him in his domain in the second circle, where your sins will go unjudged and unpunished for as long as Hyunjin remains at the top, where your eternity of “atonement” can be spent with him, where he’ll regard you as a queen of equal standing.
Dark fades to light with the rising of the sun, and still he keeps his eyes closed, as if preventing them from opening would also prevent the reality that is fast approaching from coming to pass.
Eventually, when the sun is high in the sky and brightly illuminating your room through your open blinds, he feels you stir, cautiously opening his eyes to the sight of you trying to blink away the sleepy fatigue that still maintains a grip on your senses.
You offer him a soft, lazy smile as you wake further, clinging closer to him with a tight squeeze of your arms around his torso. How naturally you smile at him and hug him is both a soothing balm and cruel crutch that he knows will break the heart he isn’t even supposed to have when it is gone.
Thankfully, in your sleep-addled state you don’t recognize the looming dread that hangs over him, and he’s able to quickly shove it down to return your smile and plant a soft kiss to your face, reminding himself to enjoy his time with you while he still has it.
Pushing your hair out of your face as you wake up more, Hyunjin catches a glimpse at your neck, the speckled bruises and fading indents of his teeth becoming entirely visible. Well, all marks of his teeth were fading except for one– the two holes left behind from his fangs, the shameful evidence that he lost control of himself in a way he never had before.
Broken skin doesn’t mend in just a single night’s sleep, and he knew the moment you touched your neck or looked in the mirror you would know they were there and you would look at the mark, at him, with either fear, confusion, or disgust as you try to comprehend how his bite would cause such a thing.
“How’d you sleep, lovely?” Hyunjin decides to ask so his mind doesn’t dwell and linger on your neck.
“Good,” is all you say with a small, bashful smile, pink crawling over your features as you recall all Hyunjin did to and for you. Honestly, you can’t remember the last time you slept so deeply, and you don’t think you’ll ever forget that feeling of ultimate bliss as your eyes grew heavy and mind drifted off comfortably.
“You make me so happy,” you follow up, tilting your head up to capture his lips in a soft, good morning kiss. “Want to make you happy too,” you whisper against his lips before kissing them again, and his heart squeezes almost painfully in his chest because he feels it– lust, passion, desire, love.
What starts as a small prick to his senses builds to an all encompassing tsunami the more you kiss him and entangle your limbs with his. Love, love, I love you, your soul radiates.
It’s all he’s ever wanted, all this time it’s what he’s been working towards and hoping for, and it shoots almost painful electricity throughout his every nerve ending. Overwhelming, consuming, too radiant and bright and pure to belong to a man such as him, who isn’t really a “man” at all, but an entity entirely undeserving of your grace. Selfish, desperate, shameful– he holds you as if he is none of those things, as if he doesn’t taint you just by loving you.
You push Hyunjin so he’s flat on his back, rolling yourself on top of him, your hair tickling his skin as it falls over his face when you kiss him. His grip on your hips is tight, almost painfully so, but you welcome it.
He’s so fucking hungry for you, he craves you so, so bad, and you meet that hunger enthusiastically, your hands ghosting over his chest and down his stomach, making quick work of the shirt he slept in.
You suppose taking the lead comes naturally to you once shyness and subtle insecurity is dealt with, but you’d easily concede control to Hyunjin again should he have the desire to once again make you pliant beneath him.
Your hips roll down onto his hardening cock, and the groan that escapes him makes your stomach flutter with countless butterflies. He nips at your bottom lip with his teeth, sometimes tugging before soothing the bites with soft licks of his tongue.
The rest of your clothes come off in a blur– your nightgown practically ripped off of you by Hyunjin while you fumble with the tied knot of his sweatpants, both of you panting into each other’s mouths, every noise being muffled and swallowed.
Wrong, this is wrong, selfish, you’re wicked, deplorable, the back of Hyunjin’s mind screams at him in stark contrast to the way he desperately paws at you, lust and hunger casting a fog over his rationality.
But when he opens his eyes as you pull back for a breath, his eyes instinctively travel back to your neck, the mark he left on your skin expounding upon his building guilt. He has to tell you now- before the guilt eats away at him entirely, before he loses control of himself again, before he does something else he’ll regret.
An almost guttural pained noise leaves his throat when you roll yourself down on him again, fingers digging into the swell of your hips, his now bare cock becoming slick with your essence.
“Shit, fuck– wait, baby wait–” Hyunjin breathes out, the most ragged and strained you’ve ever heard his voice. He can feel your passion and desire become background to concern and doubt, can feel your anxiety spiking as you cease your movements.
Fuck, he feels so bad– but you have to know he’s not what you think he is, he won’t forgive himself if he doesn’t tell you now. “Listen, I–” Hyunjin starts, then swallows, and your eyes swim with care as you see him struggle, “I– your neck, its..”
“Hyun, I wanted you to do it, don’t worry about that,” you tell him sweetly and softly, one of your hands grabbing his and rubbing soothing circles on it with your thumb.
His heart squeezes painfully once again, and he shakes his head, “That’s not it, I– ..just feel it, or look at it, or..” You furrow your brows in confusion but do as he asks of you, trailing your fingers carefully over all the spots you knew he bit and sucked your skin.
You don’t feel much, at first– just a tender skin where you assume bruises have formed, some extremely faint indents of teeth, but as you get closer to the junction where your neck meets your shoulder, you feel it and your entire body freezes.
What.. is that..? You scramble to grab your phone from the nightstand, turning on the camera and flipping its view to see yourself, blinking as you try to process what you’re seeing reflected in the viewfinder.
What the fuck? Slowly, in disbelief as your mind lags and struggles to compute with the reality of what you’ve seen, you lower your arm and let your phone fall from your hand. Are you dreaming?
You feel like you’ve been transported to one of those YA vampire romances you read in college for fun– but that’s impossible, isn’t it? Things like that aren’t real, are they? There’s no way you’ve been dating a supernatural being for months.
Your next thought is that this is an ill-timed prank, though you can rationally tell it isn’t. And Hyunjin’s hand that is still in yours.. You can feel it tremble with uncertainty and apprehension, his eyes relaying a deep seated fear of rejection and.. Guilt? Guilt for what? Do you even want to know the answer to that question? You assume it’s related to whatever this is, whatever he is, but.. what is that, exactly?
Hesitantly, you ask him, wondering if this is really your teen fantasy Twilight moment– stark naked, sitting on the dick of a man who might not actually be “a man” at all. “You may not believe me if I tell you, but I can show you,” he says quietly whilst cautiously squeezing your hand.
“O-Okay.. sure,” you breathe out nervously, squeezing his hand back in support. Maybe this is a mistake, but seeing the utter anxiety he’s struggling with, you can’t help but empathize.
If the roles were reversed, and you were an otherworldly being in a relationship with a human, would you be able to tell them? Wouldn’t you be scared of losing them if they knew the truth? And maybe you shouldn’t forgive him easily, regardless of what the truth ends up being, but you think you can understand what would drive him to keep such a deep secret.
You’re still fucking scared of whatever it is, if you’re being honest, but you don’t want to believe that the Hyunjin you know is anything but the sweet, perfect, gentle boyfriend you’ve known him as thus far.
All you do is blink and instantly the Hyunjin before you is different, as if a veil that was covering your eyes has been lifted to reveal his truest self. His facial features and hair are the same, recognizably Hyunjin through and through, but his skin has changed from a natural, honeyed tone to a deep, scarlet red hue. His eyes, in turn, are no longer a dark, boba-like brown, but instead an unnatural crimson.
Long, pointed ears like an elf you’d see in a fantasy game or movie, horns the same color as his skin protruding from the top of his head, curving gently until they point straight up. You can just barely see the points of his fangs between his parted lips, can see bat-like wings struggling to fit beneath him on the bed, as well a long, slender tail with an upside down heart as its tip.
And his body, which was already warm, now feels almost impossibly hot, as if he has a dangerous fever coursing through him, with his nails now more like claws in their length and pointed edge.
He’s.. still so beautiful..? You weren’t sure what kind of change you were expecting, and you still don’t entirely understand what he is, but he’s undeniably just as gorgeous now as when he was presenting himself as human. His form is reminiscent of the beauty found in the work of Gustave Doré, whose art Hyunjin had once praised and talked at length about; ethereal, otherworldly, mesmerizing–
Wait. Something clicks– the rumors of your apartment being haunted by a demonic entity before you moved in that you disregarded and didn’t believe in. The times you’d wake up from sleep and notice something had been moved, always slightly off from how you’d left it.
The presence you’d sometimes feel despite being alone, the sensation of being watched that sometimes lingered, but always seemed to go away when Hyunjin was at your apartment. His extensive knowledge of art and history that felt as if he lived through the era rather than just having read about it, his fluency in latin that goes beyond mere college study..
You’re in love with a demon. And you suspect that he’s known you for longer than you’ve known him.
“I’m sorry, I never wanted to lie to you,” Hyunjin breathes nervously after he sees understanding flash in your eyes as you put the pieces of his identity together. “I just, I.. became so utterly, impossibly infatuated by you. But I couldn’t just.. show myself, even if I wanted to. And I– I wanted you to know me, because I love you more than I ever thought was possible for someone like me.”
It’s hard to say whether or not you’ve been manipulated and misled to trust him, but you do, even if you shouldn’t. You’ll have to hope that God will forgive you for the sacrilege you’re about to commit.
Squeezing his hand in a display of acceptance, leaning down to kiss him once more in a promise of love regardless of the truth you’ve been shown, dedication to an act entirely unholy.
But if Hyunjin is what will be waiting for you in hell when you die, maybe damning your soul there isn’t so bad.
You feel him positively melt with relief, soft apologies from him and acceptances from you rolling off the tongue. “Promise me this is the only lie, promise this is the only secret, and I’ll forgive you,” you breathe and he affirms without hesitation, enduring promises of true love and honesty pouring from his lips.
“We can even make it a pact if you want,” he says after a string of promises, and you shake your head with a slight smile.
If what you’re led to believe from media is true, if Hyunjin made a pact with you in which his end of the deal is to never lie to you, he’d suffer grave consequences for breaking it. “I’m choosing to trust you without that, so don’t break it, okay?”
Hyunjin nods with a smile before you’re kissing once more, his arms wrapping around you and hugging you tight to his impossibly hot skin.
When your tongue enters his mouth, you curiously explore the point and feel of his fangs, and when he nips at your lips, the sharp point very nearly draws blood with each bite, the subtle pain utterly intoxicating. It’s not long before your lips end up swollen and bitten red, your tongues continuing to swirl and move together, your hands fervent in their exploration and demand to feel.
Soon enough, he’s flipping your positions, your back now against the mattress with Hyunjin pushing himself between your legs, his mouth trailing gently over the marks he left the previous night. He sucks over the skin once more, deepening the bruises he’s already left behind, brightening them in color. It aches, and yet you tilt your head to the side to make his task easier, feeling him smile against your skin as his fangs poke at your sensitive skin.
He doesn’t bite down, not like he did last night– he doesn’t want to hurt you too much. Instead, his teeth scrape and taunt, the feeling of them enough to have you whining even without the bite. When he pulls away to look at you, your eyes are already pleasantly glazing over in a lustful haze, and seeing his fangs when he smiles confidently down at you makes you dizzy. He’s so fucking beautiful, sexy- it’s going to drive you crazy one of these days.
You jump slightly in surprise when you feel his tail slinking up your leg, wrapping around and hugging your thigh. And it’s when you look down to see how his tail looks wrapped around you that you finally catch a glimpse of his impossibly hard and leaking cock, so unlike anything you’ve ever seen before.
It’s big– much bigger than you imagine a human could ever compare, and just as deep and supernaturally red as the rest of him. You’re practically drooling at the sight, at the thought of having it in your mouth– would he taste the same as a human, or would his essence be entirely unique?
Hyunjin has to hesitate from smirking when he sees you blatantly staring and curiously, hungrily licking your lips, the increased lust from seeing his cock spilling from you in droves. “You want a taste, lovely?” he asks with a charismatic, almost mischievous tilt of the head, his grin growing when you nod eagerly.
“C’mon then, love, ‘s all yours,” he says while uncurling his tail from around your thigh, standing up and letting you come meet him at the edge of the bed. You tentatively reach out to touch his cock, and fuck, it’s so heavy in your hands.
Your hands look so small wrapped around him, your fingers unable to wrap entirely around his girth, and while usually both your hands are enough to cover the entire length of a cock up to its tip, Hyunjin still has much more than just the tip poking through.
Long, thick, big, you’re not sure how it’ll fit in your mouth, much less your pussy– but you’re not a quitter. You start with kisses that turn into kitten licks as you rub up and down his length with both hands, looking up at Hyunjin through your lashes, eager for a reaction, for praise.
He brings a hand to the back of your head, waiting for you to open your mouth for him. He carefully guides and urges you to take more and more of him in, until the tip is touching the back of your throat. It takes everything in you not to gag and choke, your eyes brimming with tears as you breathe through your nose.
“That’s it, what a good girl, taking so much of me,” Hyunjin pets your head as he praises you, and he can see you pressing your thighs together, squirming and desperate to hear more. You want to take all of him in your mouth, but you recognize that’s an impossibility- so you settle for pumping what you can’t fit in your mouth with your hands, doing your best to match the pace of your hands with the bobbing of your head.
Hyunjin’s soft, breathy moans fuel you, his fingers tangling in your hair as he begins to take control of the rhythm. You let out a squeak of surprise when you feel his tail snake between your legs, gasping when you feel the tip of his tail teasing your clit.
“‘s good? You like that?” Hyunjin asks when you moan around his cock, another smirk gracing his beautiful, perfect face when you quickly nod.
The combination of his cock down your throat and his tail rubbing your clit makes you dizzy, the pace of your hands faltering as your thighs twitch and tremble. Eventually, your hands drop to your lap, your nails digging into your palms as you let him play with your clit and use your mouth, tears falling as he holds your head while rolling his hips and making you take as much as you can handle.
Determined now to make you cum while his cock is deep in your throat, he moves one of his hands to your chest, tweaking and pulling at one of your nipples, earning a muffled whine as your eyes squeeze shut.
Your hands, no longer curled into desperate fists, now cling to his thighs, your nails digging into his skin as you cry and whimper. Hyunjin is relentless on all fronts– from the pace he fucks your mouth, to the flicking of his tail against your clit, to the way he pinches and tugs on your nipples.
“Gonna cum just like this, aren’t you, lovely? Go ahead baby, let go and show me how good you feel.” With Hyunjin’s permission, and a few more quick flicks of his tail against your clit, you’re cumming with a loud, but muffled cry, your nails failing to break the skin of his thighs despite how harsh you claw at him.
You suck in a deep breath when he pulls out of your mouth, your chest heaving as you come down from your high and air returns to your lungs. Hyunjin showers you in more praise as he wipes the tears away from your eyes with his thumbs, subsequently leaving a lingering trail of kisses to your cheeks where they streaked your skin.
He guides you to lay back down on the bed, planting sweet kisses to your lips once you’ve finished catching your breath. You can feel his cock, wet and still impossibly heavy, between your legs, and you want it in you now.
“Hyun,” you start, a pout gracing your lips as you prepare yourself to shamelessly beg, “want you so bad, please, please, fuck me, I need it.”
You can feel his cock unceremoniously twitch at your pleas, a groan leaving his throat at your desperate tone. “You don’t have to beg, my love, I’ll give you anything you want,” Hyunjin says as he rubs his fingers between your folds, feeling how slick you’ve gotten for him.
Truthfully, he should prep you more first, but you’re both so fucking needy for each other, and he’ll just have to hope that fingering you last night and making you cum again since then will be good enough.
He kisses you and lets you squeeze his hand as he pushes inside, the stretch so much more intense than anything you’ve ever felt, so full that your eyes are rolling back before he’s even thrusting his hips.
It aches, it stings, but it’s also the most addictive pleasure you’ve ever experienced. You want all he has to give you, more and more, until you can feel and think of nothing but him.
Hyunjin holds one of your legs, his tail once again wrapping around the thigh of the other, this time using it to keep you spread and open for him, allowing him to sink as deep as he possibly can. “Fuck, baby–” Hyunjin groans once he’s sheathed fully inside, your walls so wet and hot and squeezing him impossibly tight, “needed this, needed you so fucking bad, you have no idea.”
“You too, needed you too Hyun, so bad,” you mirror his sentiment between gaspy moans and shaky whines when he finally starts pulling out, pushing back in one swift and fluid motion, building a quick, desperate pace. Despite the desperation however, his pace is far from sloppy– every thrust is precise, leaving you arching your back as your cries grow in volume, your nails digging harshly into his forearms.
When he knows you can handle it, he fucks into your faster, capturing your mouth in messy, open kisses, your saliva mixing and pooling until it drips from the corners of your mouth. His grip on your thigh tightens, his fingers sure to leave bruises behind in their wake.
Sweat drips from his brow, sometimes falling to your cheeks, and God, the sight is utterly mesmerizing– even as sweat drips down his face and sticks his hair to his forehead, he’s the most beautiful thing you’ve ever seen.
And again he feels it, the utter love and trust pouring forth from your soul, radiant and perhaps undeserving to be felt by him, but it exists all for him nonetheless. His head drops to your shoulder, every emotion that he feels spilling from you driving him further and further into bliss, his pleasured moans dancing in your ears.
“Tell me, please, fuck, please tell me–” Hyunjin practically whines, his nails now digging into the meat of your thighs as he fucks you harder. Tell him? Tell him what? Somehow, you think you know what he wants to hear, because it’s the very same thing that you want to hear too.
“Love you, I love you, lov– fuck, love you so much,” you breathlessly spill the words between moans, and you hear Hyunjin keen, pleasure erupting from every nerve ending, the wave of love that you exude enough to drown him completely.
“Lovely, my love, I love you, I’m gonna– fuck, ‘m gonna cum, tell me again,” Hyunjin pleads, desperate and urgent, his cock throbbing and twitching as he approaches his own high.
You do just as he asks, stuttering out endless “I love you”s until you’re both cumming hard, a blissful intensity that steals your breaths away and leaves your bodies shaking. His cum shoots inside you in long spurts, filling you to the brim, so much so that it spills out of you even with his cock still firmly pressed inside you.
“Mine,” Hyunjin mutters as he kisses you, passionate and deep, no longer sloppy and desperate as it was in the throes of his orgasm, “my love, just mine, aren’t you?”
“Just yours, all yours,” you say, and he knows you’re telling the truth, can feel it with every fiber of his being that you mean it sincerely. It was surreal, realizing the truth about your boyfriend and loving him regardless of who he is and how he truly appears, but you don’t regret it.
He cleans you up diligently, he helps you get dressed and makes you breakfast, he showers you in kisses and endless praise just as he always does throughout the rest of your day.
Because even though he may appear different to you now, he’s still the same Hyunjin you met; the one who dotes on you endlessly, who takes care of you sweetly, who spends hours talking and cuddling and listening to every thought you have.
Though you can’t explicitly read emotion the way he can, you always know what he’s thinking and feeling– because with you he’s transparent, with nothing to hide, and only love and tenderness to give.
Maybe it’s wrong for a human and demon to be in love, but you like to think this is the happiness you were meant to have, that this is where you’re supposed to be– right by Hyunjin’s side, until your final breath and then in eternity, a love that transcends your human mortality.
If there is one thing you are certain of, it is that spending forever with Hyunjin will bring you a love you’ll feel eternally– warm, gentle, and true.