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bigbuffjoonie · 1 year ago

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Tags part two bc I cannot stop talking about this and sharing my thoughts lol!!

The Obsidian Pearl (II)

— pairing: mermaid seokjin x (f) reader — word count: 8.1k — warnings: yandere, descriptions of death/blood/violence, explicit sexual content! dub-con touching/oral sex (f. receiving) - the smut is marked with * if you want to skip it — summary: Sailing through The Dead Man’s Passage is a death sentence and the whole crew knows it. But with the ship’s stocks dwindling fast, your captain is left with no other choice. When a haunting melody makes the crew jump ship one by one, you find yourself alone with the demon lurking in the murky red water. As the creature beckons you to jump into the icy ocean – “come to me, pet” – you find that you can’t do anything but obey.

Part 01 - 02

It's almost night when the siren, Seokjin, visits you again.

Enough time has passed for the air to turn chilly, carrying small gusts of wind that pass right through your clothes. The sunshine that warmed you only hours ago feels like it might never return, not when your surroundings are so terribly dark. You can feel the chill deep in your bones, fear nipping at your skin, clinging to you like frost on a dark winter night.

You're huddled as deep in the cave as you can go, hugging your knees to your chest. You're exhausted, eyes as dry as sand, but you know you can't rest. Call it instinct after being on the sea for so many years – of constantly being trapped on a vessel with people who might turn on you at any second – you tend to develop a hunch of when bad things are going to happen.

You can feel it in your body now, the low buzz that keeps you alert, reminding you that you are not safe no matter how tired you may be.

The reason for it comes only a few minutes later, a terrible scraping sound reverberating through the silence as something heavy is pushed up on the ledge of the stone dock. You free your stiff limbs, wincing as you whip around to face the source of it. It looks to be some sort of chest, the short distance and the faint moonlight not doing much for your vision.

As the item is pushed forward with another forceful shove, your heart jumps to your throat. You've seen this chest before – the iron insignia on the top is all too familiar to you. It belongs, no, belonged, to your captain. You don't dare to move closer though, not when there's only one creature who could've brought it to you.

Seokjin emerges from the water just seconds later, heaving himself up on the rock. He looks like something out of your worst nightmare, long hair covering his face as he claws his way forward. The shadows make him look all the more terrifying, the dark night blending together with his tail and hair like the perfect camouflage. If it wasn't for his strikingly pale skin, you never would've been able to make him out at all.

He settles back against the same rock as he did before, parting his hair to expose his face. Shivers run down your spine as Seokjin's black eyes find yours through the darkness. They strike just as much fear into you as they did last night, this morning, the emptiness just another reminder of how unearthly he really is.

It was foolish perhaps, but you had found yourself hoping that Seokjin had forgotten about you. That he had come across another ship to terrorize and another human to keep for his little experiments. You wouldn't have minded rotting away in the cave alone if it meant you never had to look upon him again.

The siren clicks his tongue. "I bring you a gift and you dare to look disappointed? This won't do. Come closer, little human."

You don't move, self-preservation rooting you to the ground.

"You humans freeze to death if you get too cold, do you not? Your skin is quite thin, fragile." Seokjin delivers his point by parting his mouth more than necessary, those horrible teeth coming to view behind his plush lips. "Your brain might be too small to remember but the water I dragged you out of was ice cold, pet. The air will only grow colder the longer you wait."

Seokjin doesn't have to use his thrall to make you understand that you have no choice in the matter. If you don't come forward willingly, he'll will either drag you there himself or let the elements do you in. The part of your brain that fears the unknown more than the creature in front of you, urges you to move.

You don't even have it in you to feel humiliated as you crawl forward, terror and cold stiff limbs making it impossible to walk. Seokjin's stare hangs over you like a heavy cloud, slowing you down even further.

He's close, way too close, as you kneel in front of the chest. You would be able to touch his stomach, feel where his skin transforms into scales if you just stretch your arm out.

Seokjin huffs as you linger, the sound making you jump as he impatiently says, "Go on."

You reach for the iron key that's miraculously still in the lock, your busted shoulder aching with pain as you have to twist it with more force than usual. A small stream of water is forced out, running down the side of the chest as you slowly open the lid with shaking hands. You've never held much gratitude for your captain, but for once, you can't be more thankful for his arrogance. He always left the key in the lock and never worried about a greedy crew, because, as he would always say; who in their right mind would dare to steal from a Captain?

You release a shuddering breath as you push it open, the iron hinges voicing their displeasure with a long squeak as the contents are revealed to you. The fur-lined coat your captain bought in the East lays on top of an array of shirts and pants, the fabric hardly even damp as you pick it up. You had assumed everything to be drenched, but it seems the carpenter your captain had been boasting about was the real deal after all.

You pull the coat into your lap, warmth immediately swaddling your legs.

A gift, Seokjin had called it, but you doubt the siren is simply that generous.

"How did you get this?" You quietly ask, voice trembling.

You know the stories of how the ships make it out unscathed, of how it's only the crews that go missing. But unless Seokjin can sprout legs, there's no way he was able to grab it on his own. The siren has a tail and a heavy one at that. As unearthly as he is, you doubt he's strong enough to drag himself all the way up the ship and into your captain's quarters. Never mind that he would do all of that for a chest he didn't even know existed.

"I sank the ship," Seokjin sounds like he's rolling his eyes, although you're not too sure he's even capable of doing so. "It took you too long to wake from your slumber and I was bored. I have not explored a wooden vessel in many moons and this chest looked interesting. I was foolishly hoping for treasure, not silly human clothes."

The siren smacks his tail against the water, irritated.

Even though the chances of getting out of here were slim, you were holding out hope that if you only got to the other side of the mountain, you might be able to use the ship to get away. It would be near impossible to do with only one person and not the whole crew it actually needs, but when something as ludicrous as a siren exists, manning one ship by yourself doesn't sound all that far-fetched in comparison.

You release a shuddering breath, blinking away the tears that gather. With that escape route gone, the ship now resting on the bottom of the sea with the remains of your crewmates, you are truly helpless.

Trapped.

You hope the darkness hides the way your face crumples. Lip wobbling, you try to focus on the chest in front of you, not wanting to give into panic with Seokjin so close. You have to save the freakout and the despair for when you're alone. It wouldn't surprise you if the siren can smell your fear.

Leaning forward, you notice what looks like a thick scarf, the material soft enough that it might serve as a decent pillow. You're not sure if Seokjin is planning on leaving the chest or taking it with him, so this might be your only chance at grabbing items you'll need to survive.

Just as your fingers close around the scarf, picking it up, you feel something sharp poke into your cheek.

Your whole body goes rigid at the touch, your muscles locking up as you realize that one of Seokjin's claws is currently digging into your skin. You hold your breath as he slowly trails it down your throat, the sharp nail leaving a sting in its wake. You don't have to touch it to know that it's a deep scratch, blood rushing to the surface to clot the damage.

"Look at me."

You don't. You can't. You don't want to know what will happen when you do.

"Look at me," Seokjin repeats, more force in his voice.

It makes something in the back of your mind tickle.

You clutch the coat in your lap tighter, focusing on the soft fur between your fingers as the siren's voice grows in annoyance.

You're not sure how many times he repeats his command but between one blink and the next, you suddenly find yourself staring right at him. Your mind feels hazy like it's been stuffed with cotton and shaken around, turning everything upside down.

The hard set of Seokjin's mouth disappears as you finally meet his gaze. The siren hums under his breath as he moves his hand to your face, cupping your jaw. It's like being a spectator in your own body, your eyes refusing to waver no matter how much you want them to. You can feel the ghost of his claws on your skin, not quite digging in but present enough that you know it's a threat. That he can mess you up beyond repair if he feels like it.

Seokjin leans in, watching you curiously as your throat bobs, lips struggling to part.

Your tongue feels like lead, awkward and too heavy, but you use all of your willpower to open your mouth, slurring as you ask, "What did you do?"

Seokjin breaks into a grin, a forked tongue peeking out to lick his terrible teeth. You can feel his breath wash over your face as he speaks, the stench of decay and death making your stomach roll. "You're quite the strong one, pet, I'm glad I brought you here. I think you'll prove to be very entertaining."

The siren gives you one last look, his cold fingers leaving your face as he leans back. You feel some of the thrall leave you as Seokjin turns and slowly sinks back down into the dark water, the small distance making it a little easier to think. You still can't look away from him, eyes tracking his movements even as he submerges himself completely under the surface. He's only gone for a moment before he returns, one of his pale hands coming into view above the water just before something wet splatters at your feet.

"Eat."

Seokjin doesn't wait for an answer. The thrall snaps the moment he's gone, his strong fin carrying him away in seconds.

You gasp, hand shooting up to feel your throat. The scratch he left behind aches and your head is beginning to throb from whatever he did to it. You tear your eyes away from the lake, glancing down at the thing that Seokjin left you with.

The moment you manage to make out what it is, you flinch back, jerking your body away from the mangled fish at your feet. The blood pooling beneath it has already soaked the hem of your trousers, staining it dark.

The sight disgusts you but you can't ignore the hunger gnawing at your stomach. The water in the lake felt fresh enough to drink, but it's been almost two days without any food and you're starving.

There's not a bone in your body that trusts Seokjin but you can't turn away a free meal. You have no guarantee that he'll bring you something again and you'll have no chance of escaping if you're too weak to move.

You poke at the fish, shuddering as its half-torn body twitches.

If only you still had your knife. At least then one of you could be shown some mercy.

You wake with a gasp, chest heaving with panicked breaths as the fog lifts. It's like someone snaps their finger right next to your ear, violently jerking you out of a slumber you weren't even aware you had fallen into. Your awareness always comes back to your first, keeping your mind awake and trapped while the rest of your body slowly shakes off the thrall you've been under.

You're near the edge of the dock again, kneeling in front of Seokjin. The siren has his head tucked against your neck, his long tongue dragging over your skin, licking off the sweat that rolls down your throat. Every part of you feels sticky and damp, the top of your head burning from the blazing sun. You have no way of knowing how long you've been sitting here but judging by the way your brain is practically mush from the prolonged exposure, it must've been a while.

You shudder at the next flick of his tongue, nausea swirling in your stomach. The days have been passing much in the same manner, every new turn of the moon leading you closer and closer to Seokjin. This isn't the first time you've felt his cold skin against yours, you've woken up to your hands and face being touched many times, but it's never been this intimate before. Never this dangerous, with his sharp teeth so close to your delicate skin.

Seokjin pauses, his tongue pulling away from your skin as he muses, "That lasted shorter than expected, little human."

There's no emotion in the siren's voice, nothing that gives you an indication of whether he's happy or angry. He's simply just... observing. Treating you like the experiment he's decided you are. The siren seems fascinated with your ability to somewhat resist his thrall and he has made it his mission to test out how well your resilience works. That seems to be the only reason he's keeping you here.

You can't quite tell how long he's been at it, though. Time feels wonky when you don't know how much of it has passed. The only thing you can be certain of is that it's already been well over a week, maybe even two since Seokjin trapped you here.

"Please stop," You whimper, voice shaking as you feel his hot breath against your throat, teeth skimming lightly over your skin.

To your surprise, Seokjin listens. The siren pulls back, the corner of his lip curled into a displeased snarl. He looks nothing short of irked that his fun was cut short, a series of clicking noises gurgling in his throat as he gives your shoulder a shove, breaking the last of his thrall.

You scramble backward the second your limbs feel like they're once again attached to your body, dragging yourself into the safety and shade of the cave. Nothing is stopping Seokjin from following after you, he's strong enough to pull himself into your makeshift shelter, but he seems content to stay on the edge of the stone dock - always resting against the same flat rock.

You sprawl out on the ground, panting from the heat. The cool stone seeps slowly through your clothes, bringing your temperature down to something that feels less like you're boiling alive in your own skin. But even as the heat begins to recede, you still feel terrible. The thrall always leaves you nauseous and the shock of snapping out of it in such close proximity to a dangerous predator doesn't exactly help. You're constantly on edge, heart locked in such a rapid beat that you're worried it's shaving years off your life.

Biting back a groan, you sit up, using your captain's chest for support. It wasn't easy moving it into the cave, not with a shoulder that ached with every push. The fear that Seokjin might take it back if you left it was the only thing that kept you going, the clothes inside were far too precious for you to take that risk.

The siren hasn't mentioned the chest since the night he left it but it's impossible to tell if your actions bothered him. He's too good at masking his emotions, his face a blank canvas. Some nights, you do admit that you wonder if he even has them – if he can feel the same things that you do.

You're not quite sure which answer scares you the most.

One thing you do know though, is that you need to learn more about him. You're not one to be a sitting duck and this is driving you insane. Seokjin must have some weakness, something you can use against him or that might aid you in your escape. Perhaps he hibernates in the colder months or he needs to swim for a set amount of hours for his body to function. You refuse to believe he's invincible.

"So," You swallow thickly as Seokjin turns his lifeless eyes to you, "You mentioned that you have brothers?"

Your voice is barely audible enough to carry over to Seokjin but it sounds much too loud within the walls of the cave. You ball your hands in your lap, hoping your expression doesn't show just how terrified you are of willingly calling upon his attention.

"Indeed, pet."

"How many do you have?"

The siren raises one hand to the sky, inspecting his sharp claws. "Enough."

He obviously doesn't want to answer that topic – move on.

"Y-you said something about a sea witch. How did you find them?"

"Now why would you want to find a sea witch, little human? Unless you want to get turned into a fish, they are of no use to you."

"Right, o-of course," You exhale, biting back the urge to throw some colourful language his way.

You try a few more, but there are only so many meaningless questions you can ask before you give up, tired of the aloof answers you get in return. It's like he knows exactly what you're trying to do. Considering Seokjin isn't willing to disclose any type of information, even knowledge that is worthless to you, it's pretty clear that you can't bait him into revealing anything useful.

He's too smart.

Seokjin stretches his arms above his head, showing off his lean muscles as his back pops. The crunches sound terribly loud, like he's trying to crack open every vertebra in his spine.

He lets out a satisfied sound, head tipped back to soak up the sun as he says, "Now that I have answered all of your questions, little human, you should give me something in return. Tell me something interesting about yourself, pet, something that you deem worthy of a meal. It is horribly tiresome to fetch your food at the time."

You suppose it was absurd to think that the siren would continue to feed you without demanding something in return. Perhaps he's already starting to tire of his little experiments.

You pick at your nails, the splintered edges uncomfortable and raw.

There's only one story a creature like him will find interesting – one you swore you would never tell anyone that wasn't there to witness it when it happened. But, as twisted as it is, the siren might be the only one who won't judge you.

The faded scar on your throat burns as you swallow, the phantom pain of a knife digging into your skin flaring up as you say, "I killed someone."

Glancing up, you find Seokjin staring straight at you, his dark eyes glittering under the sun. His tail does a small wiggle, fin smacking the water in what you can only assume to be intrigue.

"Tell me more, pet."

"He was sick," Your hand flies to cover your mouth as your lips move without your permission. You didn't even feel the thrall this time, no push or tug to indicate that Seokjin was in your head. There's only a small tickle at the back of your brain, like you need to scratch your scalp.

Seokjin has never used the thrall on you twice in one day before now. It must be that you're already tired from earlier that he can affect you so easily, that he can slither his way back in without you even noticing he's trying.

Seokjin grins, lips stretched into a terrible smile as he says, "Go on."

"W-we had been out on the sea for many months, five full moons, and we still had a few to go before we would reach the nearest port," You say, taking a measured breath.

"One of our cooks starting acting strangely – he was suddenly anxious and angry, exploding at any minor inconvenience. He started picking fights with the crew, causing too much tension. It was cabin fever, we all had it, but for him, it was worse. It made him sick."

You let your hands fall to your side, fingers uselessly grasping for the knife that isn't there anymore.

"He attacked one of the cabin boys in the kitchen, sliced two of his fingers clean off as he delivered him a freshly caught fish. He followed the poor lad up on deck when he ran, waving his knife around and screaming at anyone that tried to calm him down. The sea... she can be brutal, too big. Staring at the same unchanging horizon every day had chipped away at his sanity, left him with nothing but fear and anger at being trapped by the same water day in and day out."

Seokjin says nothing, his black eyes staring you down as he waits for you to continue.

"He tackled me to the ground before I even knew what was going on. When I looked him in the eyes, I knew he wasn't there anymore. There was no recognition, no emotion. Just survival. He managed to give me this while I was trying to fight him off," You lightly touch the scar on your neck, tracing it from the bottom of your jaw down to your collarbone.

"The others couldn't pull him away either, he was like a beast. I am, was, vice-captain of the ship. It was my duty to protect my crew. I couldn't let him hurt anyone else," Your voice falters as you stare at the monster in front of you, at the creature you couldn't protect your crew from. The cook was a weak mouse in comparison.

"So, I... I killed him. He wouldn't have made it even if we had locked him up, he was simply too far gone. It was more merciful to let him die."

The siren is silent for a beat, his eyes roaming over your face before he tips his head forward and laughs. At least, that's what you think he does, the series of weird clicking noises that gurgle in his throat sounding oddly joyful despite how grating the sound is.

"You truly are fascinating, pet. I made a good choice letting you live."

The hand by your hip clenches, your heart beating painfully in your chest. You wish you still had your knife, that you had something you could drive into Seokjin's throat to hear him choke on his last breaths. You weren't expecting sympathy, but you also didn't think he would find your story entertaining – funny, even. He truly is terrible.

You say nothing in return, your anger making it hard to think; to feel anything but the hatred stirring in your heart.

Seokjin, seemingly pleased with what he heard and not at all bothered by your silence, does what he always does and leaves the moment he gets what he wants.

You stare at the empty spot he left, the wet imprint of his long body the only thing left behind.

You're not sure how long you sit there, caught up in old memories and emotions you've tried to ignore for so long, but the sun has started its descent by the time the siren makes his presence known again.

This time, you watch as Seokjin leaves you not one, but five fish, all half mangled and twitching as the life drains out of them. He flings a few pieces of driftwood up on the dock, staring at your curled-up form for a minute before he swims away.

It's only when your stomach starts to rumble that you force yourself to rise to your feet, walking slowly over to the haul the siren brought you. The wood is wet and soggy, but a few days out in the sun should hopefully dry it enough that it might be used to start a fire.

You let out a humorless chuckle as you drag your hands across your face. You truly are little more than a mutt, waiting for your master to reward you when you do something he finds amusing. How embarrassing. How weak.

No matter how rabid you feel, you know that biting the hand that feeds you will do you no good here. If you want to survive, to live, perhaps it's time to roll over and accept your fate.

You're not sure if you're getting better at resisting the thrall or if Seokjin just isn't bothering to use it at full force anymore, but you no longer blackout when he comes to visit you. It feels like you're in a dream, vision spotty as you watch yourself move forward on unsteady feet, falling right into Seokjin's waiting arms. The siren holds you close to his chest, arms squeezing you so hard the pain registers even through the haze.

Weeks have passed since the day you told Seokjin your story, since you slowly began to surrender to your situation. The siren still follows the same routine but he seems to have sensed your compliance – your defeat. Your mind is still blocked off, barred from taking control of your body, but now you're able to feel everything that was only a dull memory before. Perhaps the darkness, the blissful ignorance, was a small mercy compared to this.

Seokjin lets out a guttural sound as he pushes his face into your neck, his sharp claws slicing through your shirt. His tongue drags over your skin with a desperation you haven't felt before, teeth nicking your skin.

As terrible as it is, you've grown used to Seokjin's touches, his presence. On lonely nights, you find that you almost wish to see him, just so that you don't have to face the darkness all alone.

You have come to know what to expect from Seokjin but this is new, dangerous, a far cry from the stoic and in-control creature you've been around for the past months.

The siren's hold on you is crushing, your bones aching under the strong pressure. He skims his nose along your skin, huffing as he breathes in your scent. There's a pause, a stretch of heavy silence, and then blinding pain as sharp teeth sink into your already injured shoulder.

Your vision whites out, ears ringing as the thrall suddenly snaps and everything comes rushing in at once. Your shoulder is spasming, muscles jerking with agony as Seokjin digs his teeth in deeper, an animalistic sound tearing from his throat as he draws blood.

It hurts. Gods, it hurts.

A wounded scream rips from your throat as you attempt to claw at his face, desperate to get his teeth out of your shoulder. Seokjin growls as you deliver a deep scratch on his cheek, pulling back just a smidge to create the sound. Seeing an opening, you tangle your hand in his long hair, jerking it back with all your might. You're lucky Seokjin doesn't tear a chunk of your shoulder out as his head snaps back, surprise making his tight grip around you lessen. It's just enough for you to fight your way out of his embrace, body shaking with fear and adrenaline as you roll onto the stone.

Grabbing your shoulder, you try to scoot backward on the slick ground, your own blood making it hard to get enough friction.

Your legs falter as Seokjin turns in your direction, the siren looking like he crawled right out of hell. His expression is crazed, hungry, blood dripping from his unhinged jaw. You can see straight down his throat from how open his mouth is, his stained teeth and black eyes creating the perfect picture of a demon.

Seokjin hisses as you attempt to move, a horrible sound that makes every strand of hair on your body stand straight. He digs his claws into the rock in front of him, using his strong arms to drag himself forward.

"Come here, pet," Seokjin gurgles, his voice hardly even human.

"No no, please don't," You whimper, a newfound urgency propelling you back.

Something in the siren's expression flickers at your broken pleading, like he can't decide if his hunger or entertainment is more important. The confusion, the small sliver of hope it gives you, only lasts for a few seconds before he shakes himself out of it, Seokjin's clawed hand reaching out for your ankle.

Just as he's about to wrap his hand around your foot, your feeble kicks doing little to deter him, you both hear the distant sound of people.

It must be another crew daring to brave the mountains, their rambunctious singing and laughter so terribly out of place. They're either obvious to the stories haunting the pass or trying to compensate for the oppressive silence they no doubt felt the moment the ship entered it. Your heart flutters with longing at the sound of humans singing and laughing, your chest constricting with a yearning you thought died weeks ago. They sound happy and lively – everything the siren is not.

You watch as the same realization hits Seokjin, as he registers the sound of food entering his territory. The siren's jaw pops back to normal as he licks his lips, his empty eyes flickering up to the darkening sun as he says, "The ocean appears to be smiling kindly on you tonight, little human."

Frozen to the spot, you feel your heart drop to your stomach as the siren twists around and dives back into the water with an urgency you haven't seen from him before.

The moment he's out of sight you let out an ugly sob, hope draining out of you alongside the blood that runs down your arm. You tear at the sliced fabric that's barely holding on to your body, wrapping it around your wound with shaking fingers. It's a poor excuse for a bandage, the material soaked through in seconds, but you still tighten it as much as you can, hoping it'll be enough to stop the bleeding. Only left with your undershirt, you can feel the shivers begin to set in, your adrenaline crashing.

You had given up hope on being rescued a long time ago but to have it this close, just on the other side of the mountain, is torture. You can't even alert the unsuspecting crew of what's coming, of the deadly creature that's lurking below their ship.

Scream, scare them off.

Just as the futile thought strikes you, you hear it – him. The gentle hums that cause a hush to fall over the ship.

You cover your ears, not wanting to hear what comes next. You don't know if Seokjin's thrall can still affect you here but you'd rather not take the chance and risk waking up at the bottom of the lake. Closing your eyes, you try to pretend that none of this is real, that all of this is just a terrible, terrible dream.

You let out a weak sob as the first scream pierces the air. Their terrified yells echo between the mountains as they're forced to jump one by one, their final moments brutal and panicked. There's no gentleness in Seokjin's song this time, only urgency as he compels them to their deaths.

He was starving.

For some unfathomable reason, the siren must have been starving himself to the point of breaking, trying to withhold from killing you. It all adds up to why he was acting so out of character over the past few days, his behavior more erratic than normal. He had been trying to fight off the urge to eat you.

If the ship hadn't arrived when it did, if it had only been one second too late, you would've been dead by now.

You curl up into a small ball, body cold and numb to the pain as your shield your ears, wrapping your arms securely around your head. "Thank you," You whisper to the faint moon, guilt twisting your stomach into knots.

Tears drip down your face as the screams continue to reverberate into the night, choked apologies passing through your lips until you feel them going slack. You don't fight the darkness that pulls you under, your soul begging for rest, for a place the screams of Seokjin's massacre can't reach you.

You jolt as a cold hand wraps around your shin.

Eyes flying open, you manage to push yourself up on your elbows before your shoulder gives out, the movement sending a sharp pain all the way down to your fingers. You grit your teeth, breathing through your nose to steady yourself as you glance up at Seokjin.

The siren wraps his hand tighter around your leg, using it for leverage as he drags himself up on the rock. You were close to the mouth of the cave when you passed out but now you're almost at the edge of the dock, feet only a few steps away from the still water below. Seokjin's thrall must've been too strong, urging you to come closer even when you were unconscious.

Perhaps you have truly lost your mind or maybe the night is playing tricks on you, but for once, there's actual emotion on Seokjin's face. The siren grins, his black eyes ablaze with something as he pushes forward. He tugs your legs apart, fitting his body between them. His hands rest on either side of your ribcage, his face so close that you can practically taste the stench of death that washes over your lips with every breath. The water cascading from his skin makes you shiver as it hits your own, the droplets soaking through your undershirt in seconds.

"Pet," Seokjin purrs, inching his face closer.

You hold your breath, limbs frozen with fear, as the small distance between you disappears.

You can only watch and you're horrified to find that the first thought that strikes you is how mesmerizing the siren looks. The moon shines brightly behind him, giving the scales climbing up his stomach and the small patches on his arms an iridescent shine. It's no wonder sirens have been described as beautiful creatures, not with how Seokjin's pale skin is illuminated, practically glowing, under the night sky.

You see his head tilt down, his dark eyes roaming over your bandaged shoulder. The wound only seems to ache more under the pressure of his gaze.

"Good work, little human," Seokjin comments, pleased, "You patched yourself up just to stay with me longer. I am not cruel, I will reward you for this."

What a good dog you are, licking your wounds for your master just so that he can tear them open again.

Your legs twitch on each side of Seokjin's body, resisting the urge to kick at his tail. Angering him will do you no good and you're ashamed to admit that the spark of excitement in his features leaves you curious – makes you want to know just what a siren considers a reward.

Seokjin ducks his head lower, pressing his nose right against your throat. The sharp bite you're expecting never comes – instead, there's only the soft press of his lips roaming over your skin, hurried kisses scattered across your neck. He lowers himself to get more access, nudging your head back as he settles more of his weight on your body. It leaves your hips completely immobile, your arms trembling with the effort it takes to keep yourself raised off the ground.

You hold your breath, scared to move as much as a muscle.

The siren's tongue flicks out to taste your skin with every kiss, leaving a trail of saliva covering your neck. The cold air only heightens the contrast between his warm lips and the slick skin he leaves behind. You're caught off guard when he suddenly attaches his lips to the underside of your jaw and sucks, pulling the sensitive skin there between his lips.

You let out a startled gasp at the sensation, small shudders traveling down your spine as your reaction only seems to spur Seokjin on, the siren quickly finding more spots to mark up.

Your whimper, surprised, as he uses a claw to slice through the bottom of your undershirt, exposing your waist and stomach. His cold hand finds the exposed area immediately, rubbing and squeezing at your skin as he drags his hand up and down your waist. He somehow manages to keep his claws off your skin, only digging them in faintly whenever you grow too quiet. He seems to enjoy the involuntary sounds you make, his actions only growing more and more frenzied as he tries to pull more of them from you.

"Touch me," Seokjin growls against your throat, his voice half strangled as he pushes you down to lie flat on the ground.

Mindful of your aching shoulder, you raise a tentative, shaking hand up towards his arm, grasping his toned bicep. You can feel the power thrumming under his skin, how strong he is from that simple touch alone.

Seokjin is quiet as you slowly glide your fingers up his arm and over his shoulder, feeling how the texture keeps switching between soft skin and hard scales whenever you encounter a small gathering of them. It's a curious feeling, one your brain struggles to fully comprehend.

You continue your touch down his back, careful to steer clear of the fin that protrudes along his spine. He lets out a harsh breath, low clicks gurgling in his throat as you let your hand fall away, not daring to go further than his waist.

You glance up as he pulls back, breath stuttering in your chest as you take in how wild he looks. Seokjin's expression is hungry, but it's nothing like the empty, ravenous stare you saw before he tried to take a chunk out of your shoulder. No, this one is pure desire – lust.

Your stomach flips with disgust as you realize that the hunt, that killing that innocent crew, actually turned him on.

Seokjin pushes himself back, emerging his lower body in the lake before he wraps his arms around your knees and pulls. You slide across the rock, thighs meeting Seokjin's torso as your legs fall over the edge of the dock, the water hitting just above your ankles.

You cry out from the harsh yank, pain flaring up in your shoulder as the still-open wounds are dragged across the uneven surface. The bandage does little to lessen the burn of it, your vision growing spotty as you struggle to breathe.

"You humans are so weak," Seokjin scoffs, his voice swimming in your ears. *

The siren tugs at your trousers, annoyed at how the fabric doesn't budge. He uses his claws, meeting no resistance as he slices right through them the moment it takes a little too long to get them off.

You jerk as Seokjin settles his hands on your exposed thighs, mapping out your skin.

Your vision begins to clear as you get your breathing under control, heat creeping up the back of your neck as you register just what the siren is looking at. Seokjin's torso is blocking you from closing your legs, exposing everything to him.

His dark eyes never waver from your cunt, in fact, you're not so sure he even blinks as he watches you squirm.

"Be still, pet," Seokjin says, the points of his claws pricking into your delicate flesh to get his warning across. He squeezes your thighs, his forked tongue swiping across his lips, "I was right. Your thighs do look delectable."

Horrified, you feel your hole pulse with arousal at Seokjin's words, wetness slicking up your folds.

The siren makes a curious sound at the sight, one hand drifting closer to your cunt as he lowers his head. You tense up, muscles locked tight, as Seokjin runs his finger over your clit. A choked moan makes it past your lips as he begins to rub at it, eyes bright as he lightly pinches your nub.

Receiving pleasure from the creature that has trapped and hurt you is the last thing that you want, but it's been so long since you've been intimate with someone like this. Your body gives in easier than your mind, eager to feel any touch as long as it'll make you feel good.

It's a reward, just take it. Who knows if you'll ever get to feel like this again.

"You're so wet, little human," Seokjin comments as he drags a finger up and down your folds, spreading your arousal around.

"You can't– no, no claws," You hurriedly say as you feel his knuckle graze your hole, stopping Seokjin in his tracks. "We-we're fragile, remember?"

The siren purses his lips, contemplating the information as he moves his hand back to your thigh. Arms curl under your knees before you can even breathe a sigh of relief, the air being punched right out of you as Seokjin dips his head down to lick a stripe between your folds.

"Oh Gods," You gasp, fingers clawing at the stone below you as the siren's forked tongue flicks over your clit with every pass, making your clenching hole gush with slickness.

You let out a broken moan as Seokjin prods his tongue at your entrance, black eyes flickering up to meet yours just as he pushes it inside.

Seokjin has lowered his body even more into the water, leaving him at the perfect height to feast on your cunt. His tongue worms his way into your hole, the wet muscle reaching deeper than what should be possible. Your veins feel like they're on fire, your body burning up with arousal as Seokjin licks and sucks at your folds, nose bumping against your clit. You can't stop yourself from grinding against his face, hips twitching with the little leeway he gives you.

"Seok-seokjin," Your hand flies down to his head at a particularly harsh suck, his teeth skimming over your delicate heat. The mixture of fear and pleasure leaves you lightheaded, your heart beating erratically in your chest.

The siren growls as your fingers curl into his long hair, the sound vibrating against your skin as you tug at his locks. You can't tell if you're trying to pull him away or press him closer, but either way, Seokjin doesn't listen.

You keen as his movements only seem to grow more frenzied, the siren drunk on your taste as he continues to lap up your slick. His grip around your legs is bruising, locking you in place to let him use you as he pleases. You continue to whimper out his name, your little cries only spurring him on further.

The white-hot pleasure in your stomach only continues to build the longer Seokjin eats you out, the pleasure mounting so quickly you don't know what to do with yourself.

You don't want this but you also do – and those conflicting emotions only intensify every suck and lick from Seokjin.

"Good pet," The siren groans, his warm breath fanning across your folds.

You finally erupt as he attaches his lips to your clit and sucks, your orgasm ripping through you so violently you almost feel like you're going to pass out. Your back bows off the ground as you let out a loud moan, your knuckles white from the tight grip you have on Seokjin's hair. You ride out the waves of pleasure that seem to hit you over and over, the siren lapping up your essence like a starving man – like he's never tasted anything as good before.

Your legs are trembling with oversensitivity once you come back to yourself, your cunt clenching helplessly around Seokjin's tongue as he keeps trying to lick up more of your slick. You hastily remove your fingers from his hair, weakly pushing at his head to make him back away.

"Stop, it's too much," You whimper.

Seokjin makes a displeased sound in the back of his throat, tongue dragging through your folds one last time before he pulls back. There's something in the siren's gaze that looks even more predatory than it's ever done before, his plush lips slick with your wetness. *

"You did well, little human. It was about time you gave yourself to me," Seokjin says as he brings his hands to your hips, the corner of his mouth quirked.

"What do you mean?" You say, voice faltering, "You told me to touch you, you made me touch you – made me enjoy this."

The siren tsks, shaking his head as he pushes you down on the stone dock, fingers gliding over your stomach. "Did you feel me using my thrall, little human? You touched me because you wanted to, you gave in because you wanted to feel good. This was all you, pet."

"No, that's not..." You trail off, biting the inside of your cheek. You didn't feel the ticklish sensation that usually comes with Seokjin's thrall when he asked you to touch him. You don't feel sick now, not like you always do whenever you snap out of it.

You... You did all of this on your own volition.

Seokjin sees as the realization dawns on your face, the blooming devastation making his fin hit the surface with excitement.

"That's right," He murmurs silkily, "Accept the fate that the sea has bestowed on you, pet. You were made to be my little plaything."

You feel Seokjin move away as you stare mindlessly up at the twinkling stars. You pull your aching legs together the moment he's gone, bringing them up to your chest. Without the siren's body shielding you from the frigid night air, you just feel cold. So awfully cold.

Just accept your fate.

You hear the water move as the siren ducks under the surface. The lake ripples as he swims, only a few flaps of his tail bringing him up on the side of the dock, where your head has turned. His dark eyes burn holes into your face as he drops something on the stone in front of you, the metal clinking as it bounces off the surface.

Heart stuttering in your chest, you reach out and snatch up your old knife, your shoulder burning as you put pressure on it. Your eyes grow wet as you turn it around in your hand, the familiar weight and polished grain of the wooden handle the closest thing you have to anything that feels like home.

You thought you had lost your knife forever when you jumped off the ship, that it was sacrificed to the sea together with your crew and vessel.

The siren's face is unreadable as you glance up at him, expression flat as always. One thing is for sure though – there's no part of Seokjin that views you as a threat, that's concerned you'll use your knife against him.

It breaks your heart to know that he's right. Even if you kill him, you have no way to get out of here.

Seokjin's pale hand emerges from the water to place something delicately on the edge of the dock. You let out a small gasp as he removes his fingers, the round sphere beautiful as it reflects the stars shining above. It looks to be a massive pearl made out of obsidian, the surface glossy and smooth.

You lay your knife down, meeting Seokjin's burning stare as you bring your trembling fingers forward to pick it up. The pearl is heavy in your palm, your hand barely even managing to close around the size of it.

The moment you pick it up, Seokjin lets out a pleased chitter, his mouth showing off that terrible smile again as he says, "You've proven to be a fascinating pet, I don't think I'll tire of you just yet."

"You're mine now, little human."

a/n: i really hope you enjoyed the final chapter of TOP! writing mer!seokjin was a nice break from my usual stories and it was fun to revisit the tcs-universe. i would love to hear what you think about the chapter – comments and reblogs make my day!! 🥺💖

if you enjoyed the story and would like to support me, you can do so here! 💖

#okay here I am again bc I cannot stop talking about this lol #like how do I express how I love that you don’t hide away from the gory and gross details like how seokjins breath REEKED #like if he’s eating ppl his breath has gotta be rank and how much it disgusts yn is a great realistic detail #and the screams yn can hear from outside and just how much her shoulder hurts being dragged around and shut #like you never take away from the fact that seokjin is a scary monster in this scenario - not that it stops yn from wanting to fuck him SO #and you never take away from yns position that she hates him she’s afraid of him but you know what…might as well take the reward he’s giving #and sadly at this point he is all she has and vice versa #also…is seokjin gonna give out more rewards????#is yn going to accept them?? i guess at this point she won’t have a choice but still #i doubt seokjin is gonna want to make babies the way tcs!jk did but it would be interesting as to what rewards he’d give #and the mystery is why does yn have such a strong resistance?? im going to assume she is Just That Girl!!#and I think seokjin knows deep down yn is special bc why else give her the Pearl?? yknow??#i wonder if let’s say for some reason yn asked a sea witch to turn into a mermaid would she be more powerful? would his thrall not work?#i love much about this universe for how much we do and don’t know it’s amazing #thank you for sharing this #i think I’m done with the tags but if anything else I’ll come politely screaming in your inbox lol #thank you bless you bless your house bless your favorite tv shows I hope they get new seasons and finales and reboots #and of course if I wasn’t clear seokjin was and still is hot he’s dangerous and that doesn’t make me less attracted okay!!!#am i fucked up for being into the whole bit of jin calling yn pet and little human yes!! yes im fucked up sign me the fuck up!!

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