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kimetsu-no-yaiba-writings · 9 months ago

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Bitter Poison

(The sequel to Sweet Elixir)

Pairing: Sub!Muzan x Dom! Female Reader

Summary: Five years ago, the massacre at the Kibutsuji estate claimed your father and his noble patient Muzan. Left with the burden of being the town's only doctor, you find yourself burned out and apathetic, numb to your loss and calling. But when the young lord you believed to be dead reappears as a soulless monster and confesses his horrific crimes, you finally find catharsis in treating him roughly, and enter into a pact with Muzan which will bind your soul to his for eternity.

Content Guidance: NSFW. Dom!reader is rougher than I usually write. Oral and vaginal intercourse. Reader gives: slapping, biting, hitting, nipple play, rough handjob, ruined orgasm, overstimulation. Reader receives: Orgasmic bites, cunilingus, creampie, and Muzan turns reader into a demon by fingering her. Approx 6.5k words

The massacre at the Kibutsuji estate rocked the town and neighboring villages. Someone or something had torn through the mansion, killing everyone in sight.

By all accounts it was a bloodbath.

Your father was among the dead. And his patient, Muzan Kibutsuji, the young, sick nobleman with whom you had once shared a couple of beautiful, passionate hours, was gone. Whatever beast took him hadn't even left a body to bury.

You felt the loss of both men; the one you had loved your entire life and the one you had adored only briefly. But grief had to wait as you were saddled with the crushing responsibility of being the town's only remaining doctor.

Still, even as you found yourself swallowed by work, you couldn’t go a day without being reminded of your loss.

Theories ran as rampant as the perpetrator. Some said a bear or a wolf was to blame for the massacre. The men of the town organized a hunt, but the forests were strangely devoid of all predatory animals. Others suggested that Lord Kibutsuji himself was the killer, but logic told you that was absurd. Muzan had barely been able to walk, let alone massacre an entire household.

Five years passed and the frantic rumors turned to whispers, then eventually to stories. Everyone knew someone who knew someone who had seen Muzan Kibutsuji soaked in blood and prowling the streets. You ignored it as much as you could. Your work consumed you, as did bitterness. Night after night you were dragged from your home to tend to simple ailments which could have waited until morning. Night after night you felt your calling toward helping people dwindle. Your energy and your well of compassion depleted.

Time smoothed the edges of your mourning and you learned to live with that weight in your chest. Your work kept you busy. So busy in fact, that one night you fell asleep at your table with the oil lamp burning beside an open window and a stack of papers. You were fortunate to make it out of the house. But your research, your father’s notebooks, your home were all consumed by flames.

And it was then, as you stood helplessly watching your family home burn to the ground, that you saw him.

Electric currents shot through your nerves, tingling along your spine as your eyes met. Muzan's gaze, once warm jasper red, was now a vibrant shade of crimson. He wore a fine black kariginu, elegantly embroidered with gold, and carried himself with an air of confidence– arrogance even– befitting of his noble name.

The air in your lungs escaped you as you found yourself caught in a tangled web of thoughts; it was impossible, the man standing not ten feet away from you could not be Muzan, and yet…

“How?” The one word which escaped you summarized so many of your questions. How was he still alive? How was he standing there so renewed, as if illness had never sapped away his strength? How had your father died and Muzan survived?

But he did not need to speak. Somehow you knew the answer; every fiber of your being screamed it at you: Muzan was no longer human. One word ran through your mind over and over: Yokai.

He approached you, each step slow and deliberate, as though he was still growing accustomed to his body. “You,” he said. His voice was the one thing completely unchanged; still as dark and enthralling as the first time you encountered him. “I… was searching for you.”

Your senses screamed at you to run from him, but your logical mind told you to stay. That urge to flee was wrong– there were no such things as monsters, of course he was human. What you were looking at was a miracle of medicine, nothing more.

Reaching out a hand, you gently clasped his chin between your fingers and tilted it from side to side, inspecting his visage. Though still pale, he was teeming with strength and every bit as beautiful as the day you met him. Your body reacted at once to his presence, remembering the way he had made you feel, surrendering himself to you and permitting you to use him for your pleasure. “You found a cure?”

“Yes.” His eyes fluttered shut at your touch, his lips parting around a hard-won breath. "And now I've returned for you.”

Muzan despised humans.

The urge to kill, to end every life he encountered had been ceaseless since the day he imbibed the blue spider lily. Pitiful, wretched; every living thing was cursed to die sooner or later, and what better way than by his hands. He was a calamity, a natural disaster, a god of death, with power that mere mortals could not fathom coursing through his veins. Life in all its forms disgusted him.

But…

Not you.

Bathed in the amber glow of the raging flames, he found you, his Goddess, the one woman he had ever loved, if only for an hour or two in a life half-forgotten. He knew your scent, your taste, your soul.

His rage, his bloodlust, his vengeful heart stood still and meek at the sight of you in your soot-stained nightdress– so fragile and yet so powerful. And when you reached out to clasp his chin between your delicate fingers, oh… he felt as if his lungs had turned to iron.

How could that be? How could such a gentle touch quell the raging beast? How could a mere mortal render a demon so powerless. A quiet sound of longing emerged from between his lips. Only it wasn’t simply a sound, it was your name, spoken with a reverence he hadn’t known he was capable of. He hadn’t even known he remembered it, the vestiges of his mortal life all but faded.

And then you kissed him.

Every atom of him pulled toward you; warring desires of lust and hunger as the supple flesh of your lips teased his. And before his aversion to humanity had time to kick in, he found himself kissing you back, his fingers threading through your hair, his heart beating to the fervent rhythm of a desperate mortal man.

Oh, what was this power you wielded so casually? He was terror beyond comprehension, yet as your tongue slipped into his mouth, his knees damn near gave out.

Of course, he had lied to you. His true purpose in searching for your home had been purely to uncover your father’s notes and discover additional information on the formula which had transformed him… but as you kissed him, his grasp on that goal faltered entirely. Besides, your home was in flames, the research likely burned to ash. It didn’t matter.

“I thought you were dead,” you whispered, lips trembling against his before you pulled back and gazed into his eyes with a mix of curiosity and relief. As besieged as he was by his need for you, it seemed you fared no better. The fire behind you paled in comparison to the light you found in each other’s presence.

Perhaps his apparent resurrection had shaken you from your senses, perhaps you were susceptible to his sway, or perhaps you were simply a different kind of monster than he, but amidst the wreckage of your life, he saw no fear in your eyes. No. Your eyes reflected only his image.

And as for Muzan… Muzan found himself blinkered to the world beyond you. The flames paled, the night faded, and the moon lost her luster.

You were his moon now.

His only moon.

Dawn was fast approaching and he needed to shelter from the sun’s lethal rays. He would make you this thrall if necessary. But he would not let go of you now that he had you.

“Come,” he said, offering you his arm. “You can stay with me.”

Everyone had assumed the Kibutsuji mansion was empty. The gardens were overgrown, the windows boarded over, no one came or left. But somehow you found yourself in a room you had only ever visited once before but which you remembered in vivid detail– Muzan’s bedroom. From the inside the house looked exactly the same as it had five years ago; clean and elegant. The tatami mats in his room were well-maintained, the walls decorated with soft clouds and graceful cranes. The only change was that the somber air of lingering death was no longer present.

The first time you met him you had felt that immediately; the looming presence of death and sorrow surrounding Muzan. But now, even knowing what had occurred in that house, that it was very possible you stood in the same spot that your father died in, you felt only relief, curiosity, and an overwhelming urge to be at Muzan’s side.

You couldn’t tear your eyes from him as he hung a red sheet of ramie fabric over the already boarded window, blocking out the pale gray slivers of light between the wooden panels.

“You’re an intelligent woman,” he said at last. “I think you know, don’t you? Your logical mind is telling you it can’t be true, but your gut is telling you otherwise. Tell me, what do you think I am?”

The question gave you pause. “You’re human, of course–”

“No, no…” he stepped closer, the fabric of his fine kariginu and hakama folding against your legs. “What does your instinct tell you?”

A chill crept along your spine as you looked into those blood-red eyes. His pupils were no longer round, but narrow almost reptilian slits. His skin was still as pale as the day you had met him, but it had been made flawless– without a blemish, shadow, or even pores. The air between you was stifling as you raised your hand to caress his cheek, finding his skin unnaturally hot. He should have been burning up with a fever.

He bowed into your touch, breath blowing against your palm. Your lips found his once more, unable to resist the lure of his kiss even as your soul screamed at you to run.

But Muzan's lips remained still beneath yours, his hands grasping your upper arms with terrifying strength before the dam overflowed and he kissed you back slowly… almost experimentally.

And with that kiss you felt as though you were wrapped completely in a shroud of darkness.

“Yokai…” the word, spoken against his lips, sounded ridiculous and right on your tongue.

His smile widened as he pulled back and took your wrist in his hand, long talons pricking the tender flesh above your artery. “And yet, you aren’t afraid.”

"You killed my father, didn't you?” Heart emptying as the question left your mouth, you waited for the inevitable response. You knew before he even uttered a word.

“Yes. I killed the doctor.”

The remnants of your world shattered around you as he admitted his crime so matter-of-factly. The pressure that had been building in your chest for five years finally released, and you felt as though you were drawing breath for the first time.

“I was not yet a demon,” Muzan said, his eyes distant, the trace of his smile still lingering. “I was still very much mortal.”

Your blood burned. After five years of numbness your soul awakened, and your ire was unleashed upon the demon before you.

“Curse you!” you spat, striking him across the face with all your strength. He didn’t even twitch, even though your palm throbbed and stung so severely tears sprung to your eyes. Still your rage poured over. You pounded his chest with the sides of your fists, over and over until your arms ached and your breath was nothing more than ragged burning gasps.“Damn you to fucking hell, Muzan Kibutsuji.”

He simply stood and bore your wrath, his arms extending to support you when your legs gave out and you stumbled forward, tears soaking into the fabric of his kariginu. When you sank to your knees, Muzan knelt with you. The arms which wound around your back were strong and sure, nothing like the weakened limbs of the man you had known. And yet, as he held you and permitted you to cry and curse and strike him, you found comfort and catharsis in his rigid embrace.

“And curse me too,” you wept. “Gods, I can’t help but want you.”

“Have me then,” he whispered, his thumbs swiping away your tears. His touch was comforting and infuriating, far gentler than a monster that you were supposed to hate should have been capable of. “You have been the torment of these past five years, the damned itch I could not scratch. I have wanted you every single day since that first encounter. Every day, both in this form, and the pathetic mortal I once was.” He forced a breath through his nose, his crimson eyes narrowing as he bowed his head to rest against yours. “I don’t care if you despise me. Just—”

You silenced him with a kiss, hard and deep, full of loathing and longing, your treacherous body aching for him, seeking the solace of simple pleasure. Muzan was familiar and strange all at once. He still kissed the same way he had as a mortal; his lips lazy and soft, receiving your kiss rather than kissing you. And yet It didn’t matter. All that mattered was the heat, the sensation, the delectable whimpers of yearning coming from him, purging the bitter poison which had infected your heart for years.

Despite his inhuman strength, Muzan bent to your will, allowing you to push him backward until he was forced to let you go, bracing his hands on the tatami mat by his ankles for balance, his torso arced toward you.

By some demonic art, his fine clothes simply disappeared, falling from his body in tatters and dissolving into the air. His robe, his hakama, his kanmuri cap all seemed to melt before your eyes, leaving the man completely bare. His long, black waves of hair tumbled down over his shoulders as you traced the lithe shape of his abdomen, his muscles twitching and stuttering beneath your palms.

Even in this corrupt, demonic form, he was so beautiful he made your lungs ache, and just as willing to submit to you as he was when he was mortal. And while he seemed to feel no pain when you hit him, your gentler touches made him crumble. A broken sigh escaped his lips as you ran your fingernails across his chest, catching his nipples and making him gasp.

Gods, you were certain you were going to hell; the nights you had silently resented your patients had long ago ensured that. What harm was there in indulging the whims of your desire?

You kissed him firmly, sinking your teeth into his lower lip, relishing the deep, shivering groan which tumbled from his lips as you ran your fingers through the trail of ink-black hair starting at his navel, and wrapped your hand around his semi-hard cock.

“You destroyed my world,” you hissed against his ear. “Now it’s my turn to destroy you.”

“Do what you will,” he said, his voice strained as you pulled his hips toward you with one hand and began to pump his cock in your other fist. “I am yours.”

He should not have felt anything toward you, and it irked him that he did. That a demon should bend so willingly to a loathsome mortal– the fact that he didn’t loathe you at all. None of it made any sense. Every other human he had encountered had sparked nothing in him but an overwhelming urge to snuff out the miserable light of their existence and tear their flesh with his teeth. But not you.

Why?

The question ran around and around his mind. Why you, out of all the thousands of humans he had encountered in his demon form? Why didn’t he want to crush you, consume you, break you, watch the life leave your eyes?

His throat flexed as you pressed your mouth to his chest, your tongue slippery and warm against his nipple, sending humiliating bolts of pleasure darting straight to his cock.

Fuck, the pace of your ministrations was brutal, the tunnel of your fist aggressively tight. Pleasure and pain tangled and became one as you bit his chest, pulling the air from his lungs as your teeth sank into plush muscle and flesh.

It was as if no time had passed at all the moment you touched him; you had complete dominion over his body and his pleasure. The strength and power he had acquired were meaningless in your presence. He was as weak to you then as he had been on his deathbed.

“Ahh… curse you, woman,” he groaned, fighting the urge to put an end to it even as he thrust his hips toward you. "You'll be the death of me."

“Silence,” you hissed, firmly slapping his chest, making his nipples tingle and pucker before returning your mouth to one, and tickling the unattended one with your fingertips and causing him to moan.

The power you held over him was humiliating, and it made his cock so hard he could barely function. Your soft hands, punishing him with such ruthless pleasure, expertly pulled him apart. The bliss you gave him was the first he had felt since that day you bestowed upon him your own brand of medicine, and now, embittered and vengeful, you still felt just as sweet. His stomach muscles clenched and spasmed as he drew closer to oblivion, his eyelids fluttered shut.

“Ngh…” He panted. “I’m… almost—”

“Are you close, my pretty demon lord?” you whispered.

He nodded, his breaths just shattering gasps. “So close…”

“Good.” You stopped and released your grip.

His heart emptied. “No damn you don’t stop. Don’t… nghhh… stop!” he cried out as his orgasm limped through him, its power completely dwindled by the loss of your touch. His cock wept pathetically, half-heartedly spurting and dribbling cum as he gasped for breath. “Cruel… torturess...”

“A small price to pay for what you’ve done,” you said, pulling off your sooty nightdress and casting it aside.

Muzan’s breath hitched. He remembered your shape in vivid detail when he remembered nothing else of his human life; every curve and crease of your form, the warmth and plush softness of your thighs cradling his head. He remembered your taste, your scent, the way you had praised him, the way you had held him afterward and told him he had done well. But you were somehow even more beautiful having aged half a decade.

He should have despised it; the relentless march of time, the fleeting nature of your mortality. But he could not despise you. Never. Time had softened you, made you somehow ethereal to his eyes. Muzan had never truly believed in gods, but you elicited the same reverence in him he imagined the temple monks felt when they beheld the rising sun. To him, you were divine, a vengeful goddess.

And who better to walk at his side for eternity?

You leaned back in, taking hold of his cock once more, your touch sending jolts of searing torment through his body. It was too much, and yet he craved you so completely he was even willing to endure your cruelty.

And while you mercilessly jerked his cock, you slapped his chest again. And again. Of course, the physical pain was nothing to him, but your audacity, the way you humiliated him… it made heat pool in his chest, kept his cock from going limp, made his cheeks rosy, and before long he was little more than a blushing, mewling mess. “Please…”

“Please what?” Your soft hands pumped up and down his length, using his cum to make them glide. “Is this where you beg my forgiveness?”

“No… no I would never beg that… I don’t need your forgiveness– ahh-hahh–”

You bestowed another slap to his breast. Gods, it thrilled him to no end, to watch the blood and heat rising in your face, to know he was pushing you and you would keep on giving. Your domination was beautiful, your touch addictive. And you were enjoying this as much as he was. He could see the arousal in your face; the way your pupils almost drowned out the color of your eyes, your staggered breaths, and flushed cheeks.

In five years of slaughtering every mortal he encountered, five years of watching them cower with tear-streaked faces and eyes bulging with fear, he hadn’t found a single one so unrattled by his demonic nature. And he simply adored you for that fact. Among others.

He couldn’t stop himself from collapsing forward, to press his face to your neck, breathing in the intoxicating scent of your skin. How his body ached for you; both the delectable taste of your flesh, and the divine sanctum of your cunt. “Please,” he whimpered. “Please…”

“I mourned you,” you said, your lips against his ear. “I wished you were back in my arms on the nights I had nothing else to cling to besides memories. And all along you were this… monster.”

He should not have cared. It was against his nature to feel empathy or even regret… but some part of him did. Some small, shriveled part of him did regret hurting you.

When you grasped his jaw between your fingers, he allowed you to lift his chin, moaning as your tongue slid up the length of his throat, warm and wet and voracious. His body undulated involuntarily, his hips pistoning away from you as the stimulation grew unbearable.

“If I’d have come to you sooner you…” His body jolted as you took hold of his cock once more. “Mmhgh… you would have hated me even more than you do now.”

"Oh my foolish demon Lord, I don't hate you." You whispered, flicking his nipple with your tongue. "How could I bring myself to hate something so pitifully beautiful?"

"Pitiful? The gall…"

You smirked. "Yes, pitiful. Look at you, Muzan.”

Raising his head, he looked down at his body and a gasp escaped his lips. His chest was flushed pink, littered with bite marks he had no inclination to heal, his nipples swollen and glistening with your saliva. His cock was bright red at the tip, glazed with his own spend, twitching in your grasp. The humiliation of it all only made him need you more. “Only for you.”

“Such a pretty sight. So overcome. So utterly helpless. All for me.”

Your praise, your derision… It was too much. His broken breaths and clenching muscles made his chest and belly judder as he drew nearer his climax. His cock throbbed in your hand.

"Ah… you're close again?" You taunted, slowing your strokes to an unbearably languid pace. “Human or yokai, it’s all the same, Muzan. Your cock will always belong to me.”

"Ohhhh-oh-oh-oh curse you…" he ground out in agony, his eyes screwing shut. "If you don't hate me, why then do you insist on torturing me?"

“Tell me to stop,” you whispered against his ear.

Damn you. “Never.”

“Good. You take your punishments well, Muzan.” You smirked as he fell against you once more, desperately trying to buck his hips against your palm. “Tell me, who owns your cock?”

“I won’t say it.”

You pinched his nipple harshly, making him whine.

His dignity was in tatters and you had the single thread holding him together in your grasp. “Fine.” He bared his teeth as your thumb teased the weeping slit of his cock with languorous circles. “You do.”

“Good boy.”

As soon as the words left your lips his orgasm erupted, his seed squirting from him in pearly ropes, spraying his thighs and belly as his back curved in euphoria. The broken, feral cries which emerged from him were muffled by your lips as you pulled him into a claiming kiss.

Even as he came undone, you managed to send desire spearing though his body, sucking his lower lip the way you had when he was mortal, your arms wrapping around his back, holding him firmly to you.

“Ffffuck, let me taste you,” he begged as you broke away from the kiss, gazing up into your eyes and despising the desperate whininess of his voice. One night was not enough. He needed to spend his unending years with you, surrendering to you and earning your adoration. "I need to taste your cunt. I need it.”

And you, merciful goddess of vengeance, were only happy to oblige.

Muzan groaned as he dragged his tongue through the slick folds of your labia, sending frissons of pleasure rolling through your body. You lay on your back with him between your thighs, head raised to watch him devour you. Despite everything, his beauty still enraptured you; the ebony waves of his hair spilling over your thighs, his crimson eyes fixed on yours, the subtle curve of his lips as he tasted you again. So beautiful and so utterly wicked.

“That’s it,” you said, pulling in a shaking breath as his tongue lapped at your clit. “Keep doing that. Don't stop until I say.”

As a human his technique had been sloppy, unskilled but eager, and as a demon he was no different, only now his strength was unfathomable, and he apparently no longer needed to breathe. What he apparently lacked in experience he made up for with fervor, licking you with such frantic and animalistic passion you could hardly stop from crying out. Your hand came down to thread your fingers through his hair, your grip tightening as you bucked your hips against his mouth.

Gods, by rights you should have despised him; the monster who had left your life in tatters, but try as you might to hate him, your weary soul craved the comforting abyss of his. You knew the hands which clung to your thighs had choked the life from people. The mouth hellbent on driving you to euphoria had feasted upon human flesh. The heart you felt so strongly bound to was wicked and inhuman.

And none of it mattered.

None of it mattered because for the first time in five years, you had some semblance of control. The monster lapping at your core was yours to command, bending to your whims because it pleased him to do so. No one was begging you to save lives. No one needed you for anything more than your cunt.

With that beast between your thighs you finally found peace. Muzan gave you such simple, primal pleasure which deadened the rest of the world. The cries of the dying, the fists pounding at your door, the choking coughs of the sick and frightened villagers who clung to you and pleaded with you to do what you could not… all silenced.

The pounding rhythm of your heart, the gasps emerging from your lips, the growls and wet sound of his mouth devouring your essence, they drowned out the constant hum of the world.

“Please,” he whispered against your cunt as he circled his nose around your clitoris and lapped at your entrance. He pressed two fingers inside you, pumping them slowly and sending electricity rolling through your spine with every thrust.

You were close, your muscles clenching and breath becoming staggered. “Please…what?”

“This. For eternity.” His lips surrounded your clit, lavishing it with a deep, loving kiss before whispering against it, “Let me worship you forever. Let me take you away from all the death, the sickness, the misery.”

“Yes,” was all you could manage as you came undone, fingers tangling in his long hair, pushing him down to grind your cunt against his ravenous mouth.

The feral growl which emerged from him only extended your pleasure, your walls fluttering and clenching around his fingers as he put his wicked tongue to divine work. Waves of euphoria rolled through you as you cried out in bliss, only vaguely aware of a brief pinprick of pain deep in your cunt.

And amidst the pleasure you felt the sensation of being filled, as though it was his cock inside you, spilling into you, pumping you full of his seed. But that couldn’t be.

“Muzan…” you gasped, “that’s enough.”

His chin was glistening with your essence as he withdrew his fingers and pulled back to kiss his way up your body.

“You are mine forever,” Muzan said as he lay down beside you. His breath was hot against your neck. “And I am hopelessly yours. If you are my moon then I am your wolf. Your hands are the only hands wound around my leash, your voice the only sound that can bring me to heel.” His eyes drifted over your flesh. “Please let me taste you.”

“Haven’t you tasted enough? Ever the greedy nobleman, even when you’re no longer a man.”

A slow smirk tilted his lips. “I don’t mean your cunt. I mean your blood.”

Logic told you that you should be disgusted by his request, but you were anything but. Some part of you was curious, some part of you no longer feared pain. And some part of you was deeply aroused by the thought of it.

“Very well,” you sighed, “since you were so good for me.”

The sharp pain of his fangs piercing your neck was only momentary, before pleasure overtook it, stronger and even more consuming than any orgasm. It throbbed through your body, pulling primal cries of bliss from you.

“Mmmhh…” A deep moan emerged from him as he drank your blood, his cock throbbing against you.

The ecstasy was overwhelming and never ending; your cunt still throbbing while his teeth penetrated your flesh. That feeling of fullness bloomed in your belly, a heat gathering deep in your core, the pain of it deadened by the pleasure of his bite. Your lifeforce leaked into him as he lay beside you, his unattended cock pressed against your hip as he compulsively rutted against you.

Finally, he withdrew his fangs, lapping at the wound he left in his wake, savoring every drop of you. And at once your body was consumed by the throbbing pain in your core.

“Gods… what did you do to me?” you asked, gasping for breath as your hand coiled around his bicep, anchoring you to him. The slick heat of his tongue on your throat made you ache.

“I gave my moon a gift.” He brought his trembling fingers up to cup your face, peppering your cheeks with soft persuasive kisses. “More than pleasure. More than love. I have given you eternal life.”

“What– Muzan… what is this?”

“Yokai,” he whispered against your ear. “We are the same, you and I. I gave you my blood and you gave me yours.”

Your heart rate spiked as the meaning of his words settled upon you. It was his blood inside you. The essence coursing through your veins was no longer just yours but his as well, his demonic power flooding through you, transforming your mortal body into that of a demon.

And it burned. It burned so badly you wanted to tear out your veins.

Some part of you fought back, perhaps your soul, or perhaps simple animal instinct, snarling in the depths of your mind that he had no right to this, no right to steal away your humanity and pull you into darkness with him. But that protest was swiftly silenced by the lure of the abyss he offered.

Muzan was the devil, but you welcomed his oblivion, knowing that the ceaseless din of life dared not enter his shadow.

So instead you clung to him, crying out in agony and euphoria as he held your convulsing body to his, the tender touch of his fingers threading through your hair at odds with the pain flowing through you.

"No more death," he said, holding you as agony and darkness engulfed you. In the shadows, only his voice remained. "You will live eternally at my side, bound to me as I am to you.”

Muzan’s body no longer needed air to live, and yet he released a shaking breath as he lay in the aftermath of passion. He had given you so much blood– more than he had ever intended. It was a miracle that your cells hadn’t rejected his gift.

You had survived the initial transformation but had not yet awakened. Try as he might to detach himself from concern, Muzan's blood-red gaze remained fixed on you, waiting for movement.

And he despised that. He despised that he had allowed such turmoil, that his defenses were lowered and the last vestige of his humanity still clung to his soul like a parasite. It was against his nature to feel anything beyond bloodlust and hatred, to crave anything but violence. But as you slept peacefully at his side, the heart he thought long-dead ached with the thought that you might never wake.

He should not have cared whether you lived or died. And yet, he couldn't stand the thought of you slipping from his grasp. Perhaps it was simply his pride, refusing the world the audacity to take what was his. Or perhaps it was the fact that your presence, your love, your domination quelled his raging soul.

And, oh, when your eyes opened, when they shone with renewed strength and divine malice, he could hardly contain his excitement. He bit into the back of his hand as he took in your visage; his perfect creation, his love, his moon. Any resentment was entirely forgotten.

“You are beautiful,” he whispered, sitting to observe you as you pressed your tongue to the tip of your fangs. You were his triumph. You were proof of his genius, his power, his wisdom.

Your eyes darted around the room, wide and frantic as if seeing the world for the first time. “I can feel your strength in my veins.”

How that pleased him. To think that he had succeeded so spectacularly, that he had known instinctively to create you and had achieved such perfection.

And you were right. He knew it the moment you slammed him to the ground and pinned him down, straddling his hips and grinding your heat against his weeping cock.

He had imbued you with near terrifying strength.

Despite his own demonic power, as he tried to raise his hands from where you held them to the tatami mat, he found himself as weak against you as he had been during that first encounter when his mortal body was ravaged by sickness.

Somehow, he had made you even stronger than himself.

And damn it all, that excited him beyond anything he had ever known. There wasn’t a force on earth that could hold him down but you.

He was powerless as you lowered yourself onto him, the wet heat of your perfect cunt squeezing his cock and pulling a pathetic whimper from him.

“That’s it,” you grinned, your fangs protruding over your lower lip. “You make such pretty sounds for me.” You pressed your clit to his mons and rolled your hips, damn near euphoric as you ground against his coarse hair, seeking friction. It seemed your transformation had heightened your hedonism, and Muzan found himself little more than a tool for your indulgence.

“Curse you to hell,” he groaned, the heat rising in his face as you used his cock for your own selfish pleasure.

“Now now, Muzan,” you chided, your voice as foreboding as an oncoming storm. “Play nice, or you’ll never get to cum again.”

His lip curled, bearing his fangs as you rode him at an agonizingly languid pace. “What have I done?” he groaned, throwing his head back as you kept him hanging on the edge of pleasure. “I’ve created a monster.” Try as he might, he couldn’t break free to grip your hips and control your pace. Your thighs kept him wedged so he couldn’t thrust up into you.

When you came his eyes flooded with tears of frustration and adoration and anger, even the walls of your cunt made stronger and more devastating by your transformation. Every pulse of your orgasm squeezed his cock almost unbearably tight.

“Ah-ah-ah fu-uh-uhck,” he groaned, the sinews in his neck straining as he clenched his own core and tried once more to buck his hips into you, desperate for release. “Please please please please.”

“So you do remember your manners,” you smirked as you lifted your hips, until only the very tip of his cock remained buried inside you.

Gods, he was on the verge of tears as he raised his head to watch it almost slipping out of you. “No please, no please don’t stop… let me cum please don’t do this to me.”

Desperation cracked his voice but he no longer cared about his dignity. It was irreparable at this point anyway. His ego was gone, his only concern was that you kept on pleasuring him.

“Say you’re sorry for all you’ve done.”

“I’m sorry,” he cried, as sincere as he had ever been. “Forgive me, forgive me please.”

You simply threw your head back and laughed, dropping down onto his cock with enough force to drive a cry from his lips. And you fucked him hard, fast, the pleasure so intense his legs trembled. You released his wrists and lightly slapped his chest again and again, not enough to hurt, but enough to make the fat and muscle ripple beneath your blows.

Curse you. Curse you and the way you made him adore you. Curse you and the power you so mercilessly and perfectly wielded over him.

“Oh fuck,” he gasped, sucking in a breath as the first throbbing pulses of his orgasm rocked through him. “Oh fuck.”

“Cum for me, Muzan. I won’t stop until it’s dripping out of me with every thrust.”

You tore him apart with your pleasure, his back arching as he flooded your cunt, cumming harder than he ever had. What a monster you were, what a wonderfully malevolent goddess.

“Nghh, fuck,” he groaned, covering his flushed face with his arms as you rode him tirelessly, not a drop of his seed spilling from you. “It’s too much… please…”

The gleam in your eyes said you were far from finished. “Now, Muzan… I’m disappointed. Surely you’re not so easily defeated. I know you can keep cumming for me, my pretty king.”

Curse you. He was simply helpless.

Tags: @vampcubus @cloverussy @birbgoboom @chiyoso @taramultiuniverse

And he adored it.

#gnawing at the bars of my cage #highly recommend reading this #muzan x reader #muzan kibutsuji x reader #x reader #kny muzan kibutsuji x reader #kny muzan x reader #kimetsu no yaiba muzan kibutsuji x reader #kimetsu no yaiba muzan x reader #demon slayer muzan kibutsuji x reader #demon slayer muzan x reader #aster recs #gem recs

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kimetsu-no-yaiba-writings · 11 months ago

Text

words to use when writing

Appetite:

craving, demand, gluttony, greed, hunger, inclination, insatiable, longing, lust, passion, ravenousness, relish, taste, thirst, urge, voracity, weakness, willingness, yearning, ardor, dedication, desire, devotion, enthusiasm, excitement, fervor, horny, intensity, keenness, wholeheartedness, zeal

Arouse:

agitate, awaken, electrify, enliven, excite, entice, foment, goad, incite, inflame, instigate, kindle, provoke, rally, rouse, spark, stimulate, stir, thrill, waken, warm, whet, attract, charm, coax, fire up, fuel, heat up, lure, produce, stir up, tantalize, tease, tempt, thrum, torment, wind up, work up

Assault:

attack, advancing, aggressive, assailing, charging, incursion, inundated, invasion, offensive, onset, onslaught, overwhelmed, ruinous, tempestuous, strike, violation, ambush, assail, barrage, bombard, bombardment, crackdown, wound

Beautiful:

admirable, alluring, angelic, appealing, bewitching, charming, dazzling, delicate, delightful, divine, elegant, enticing, exquisite, fascinating, gorgeous, graceful, grand, magnificent, marvelous, pleasing, radiant, ravishing, resplendent, splendid, stunning, sublime, attractive, beguiling, captivating, enchanting, engaging, enthralling, eye-catching, fetching, fine, fine-looking, good-looking, handsome, inviting, lovely, mesmeric, mesmerizing, pretty, rakish, refined, striking, tantalizing, tempting

Brutal:

atrocious, barbarous, bloodthirsty, callous, cruel, feral, ferocious, hard, harsh, heartless, inhuman, merciless, murderous, pitiless, remorseless, rough, rude, ruthless, savage, severe, terrible, unmerciful, vicious, bestial, brute, brutish, cold-blooded, fierce, gory, nasty, rancorous, sadistic, uncompromising, unfeeling, unforgiving, unpitying, violent, wild

Burly:

able-bodied, athletic, beefy, big, brawny, broad-shouldered, bulky, dense, enormous, great, hard, hardy, hearty, heavily built, heavy, hefty, huge, husky, immense, large, massive, muscular, mighty, outsized, oversized, powerful, powerfully built, prodigious, robust, solid, stalwart, stocky, stout, strapping, strong, strongly built, sturdy, thick, thickset, tough, well-built, well-developed

Carnal:

animalistic, bodily, impure, lascivious, lecherous, lewd, libidinous, licentious, lustful, physical, prurient, salacious, sensuous, voluptuous, vulgar, wanton, , coarse, crude, dirty, raunchy, rough, unclean

Dangerous:

alarming, critical, fatal, formidable, impending, malignant, menacing, mortal, nasty, perilous, precarious, pressing, serious, terrible, threatening, treacherous, urgent, vulnerable, wicked, acute, damaging, deadly, death-defying, deathly, destructive, detrimental, explosive, grave, harmful, hazardous, injurious, lethal, life-threatening, noxious, poisonous, risky, severe, terrifying, toxic, unsafe, unstable, venomous

Dark:

atrocious, corrupt, forbidding, foul, infernal, midnight, morbid, ominous, sinful, sinister, somber, threatening, twilight, vile, wicked, abject, alarming, appalling, baleful, bizarre, bleak, bloodcurdling, boding evil, chilling, cold, condemned, creepy, damned, daunting, demented, desolate, dire, dismal, disturbing, doomed, dour, dread, dreary, dusk, eerie, fear, fearsome, frightening, ghastly, ghostly, ghoulish, gloom, gloomy, grave, grim, grisly, gruesome, hair-raising, haunted, hideous, hopeless, horrendous, horrible, horrid, horrific, horrifying, horror, ill-fated, ill-omened, ill-starred, inauspicious, inhospitable, looming, lost, macabre, malice, malignant, menacing, murky, mysterious, night, panic, pessimistic, petrifying, scary, shadows, shadowy, shade, shady, shocking, soul-destroying, sour, spine-chilling, spine-tingling, strange, terrifying, uncanny, unearthly, unlucky, unnatural, unnerving, weird, wretched

Delicious:

enticing, exquisite, luscious, lush, rich, savory, sweet, tasty, tempting, appetizing, delectable, flavorsome, full of flavor, juicy, lip-smacking, mouth-watering, piquant, relish, ripe, salty, spicy, scrummy, scrumptious, succulent, tangy, tart, tasty, yummy, zesty

Ecstasy:

delectation, delirium, elation, euphoria, fervor, frenzy, joy, rapture, transport, bliss, excitement, happiness, heaven, high, paradise, rhapsody, thrill, blissful, delighted, elated, extremely happy, in raptures (of delight), in seventh heaven, jubilant, on cloud nine, overexcited, overjoyed, rapturous, thrilled

Ecstatic:

delirious, enraptured, euphoric, fervent, frenzied, joyous, transported, wild

Erotic:

amatory, amorous, aphrodisiac, carnal, earthy, erogenous, fervid, filthy, hot, impassioned, lascivious, lecherous, lewd, raw, romantic, rousing, salacious, seductive, sensual, sexual, spicy, steamy, stimulating, suggestive, titillating, voluptuous, tantalizing

Gasp:

catch of breath, choke, gulp, heave, inhale, pant, puff, snort, wheeze, huff, rasp, sharp intake of air, short of breath, struggle for breath, swallow, winded

Heated:

ardent, avid, excited, fervent, fervid, fierce, fiery, frenzied, furious, impassioned, intense, passionate, raging, scalding, scorched, stormy, tempestuous, vehement, violent, ablaze, aflame, all-consuming, blazing, blistering, burning, crazed, explosive, febrile, feverish, fired up, flaming, flushed, frantic, hot, hot-blooded, impatient, incensed, maddening, obsessed, possessed, randy, searing, sizzling, smoldering, sweltering, torrid, turbulent, volatile, worked up, zealous

Hunger:

appetite, ache, craving, gluttony, greed, longing, lust, mania, mouth-watering, ravenous, voracious, want, yearning, thirst

Hungry:

avid, carnivorous, covetous, craving, eager, greedy, hungered, rapacious, ravenous, starved, unsatisfied, voracious, avaricious, desirous, famished, grasping, insatiable, keen, longing, predatory, ravening, starving, thirsty, wanting

Intense:

forceful, severe, passionate, acute, agonizing, ardent, anxious, biting, bitter, burning, close, consuming, cutting, deep, eager, earnest, excessive, exquisite, extreme, fervent, fervid, fierce, forcible, great, harsh, impassioned, keen, marked, piercing, powerful, profound, severe, sharp, strong, vehement, violent, vivid, vigorous

Liquid:

damp, cream, creamy, dripping, ichorous, juicy, moist, luscious, melted, moist, pulpy, sappy, soaking, solvent, sopping, succulent, viscous, wet / aqueous, broth, elixir, extract, flux, juice, liquor, nectar, sap, sauce, secretion, solution, vitae, awash, moisture, boggy, dewy, drenched, drip, drop, droplet, drowning, flood, flooded, flowing, fountain, jewel, leaky, milky, overflowing, saturated, slick, slippery, soaked, sodden, soggy, stream, swamp, tear, teardrop, torrent, waterlogged, watery, weeping

Lithe:

agile, lean, pliant, slight, spare, sinewy, slender, supple, deft, fit, flexible, lanky, leggy, limber, lissom, lissome, nimble, sinuous, skinny, sleek, slender, slim, svelte, trim, thin, willowy, wiry

Moan:

beef, cry, gripe, grouse, grumble, lament, lamentation, plaint, sob, wail, whine, bemoan, bewail, carp, deplore, grieve, gripe, grouse, grumble, keen, lament, sigh, sob, wail, whine, mewl

Moving:

(exciting,) affecting, effective arousing, awakening, breathless, dynamic, eloquent, emotional, emotive, expressive, fecund, far-out, felt in gut, grabbed by, gripping, heartbreaking, heartrending, impelling, impressive, inspirational, meaningful, mind-bending, mind-blowing, motivating, persuasive, poignant, propelling, provoking, quickening, rallying, rousing, significant, stimulating, simulative, stirring, stunning, touching, awe-inspiring, energizing, exhilarating, fascinating, heart pounding, heart stopping, inspiring, riveting, thrilling

Need:

compulsion, demand, desperate, devoir, extremity, impatient longing, must, urge, urgency / desire, appetite, avid, burn, craving, eagerness, fascination, greed, hunger, insatiable, longing, lust, taste, thirst, voracious, want, yearning, ache, addiction, aspiration, desire, fever, fixation, hankering, hope, impulse, inclination, infatuation, itch, obsession, passion, pining, wish, yen

Pain:

ache, afflict, affliction, agony, agonize, anguish, bite, burn, chafe, distress, fever, grief, hurt, inflame, laceration, misery, pang, punish, sting, suffering, tenderness, throb, throe, torment, torture, smart

Painful:

aching, agonizing, arduous, awful, biting, burning, caustic, dire, distressing, dreadful, excruciating, extreme, grievous, inflamed, piercing, raw, sensitive, severe, sharp, tender, terrible, throbbing, tormenting, angry, bleeding, bloody, bruised, cutting, hurting, injured, irritated, prickly, skinned, smarting, sore, stinging, unbearable, uncomfortable, upsetting, wounded

Perverted:

aberrant, abnormal, corrupt, debased, debauched, defiling, depraved, deviant, monstrous, tainted, twisted, vicious, warped, wicked, abhorrent, base, decadent, degenerate, degrading, dirty, disgusting, dissipated, dissolute, distasteful, hedonistic, immodest, immoral, indecent, indulgent, licentious, nasty, profligate, repellent, repugnant, repulsive, revolting, shameful, shameless, sickening, sinful, smutty, sordid, unscrupulous, vile

Pleasurable:

charming, gratifying, luscious, satisfying, savory, agreeable, delicious, delightful, enjoyable, nice, pleasant, pleasing, soothing, succulent

Pleasure:

bliss, delight, gluttony, gratification, relish, satisfaction, thrill, adventure, amusement, buzz, contentment, delight, desire, ecstasy, enjoyment, excitement, fun, happiness, harmony, heaven, joy, kick, liking, paradise, seventh heaven

Rapacious:

avaricious, ferocious, furious, greedy, predatory, ravening, ravenous, savage, voracious, aggressive, gluttonous, grasping, insatiable, marauding, plundering

Rapture:

bliss, ecstasy, elation, exaltation, glory, gratification, passion, pleasure, floating, unbridled joy

Rigid:

adamant, austere, definite, determined, exact, firm, hard, rigorous, solid, stern, uncompromising, unrelenting, unyielding, concrete, fixed, harsh, immovable, inflexible, obstinate, resolute, resolved, severe, steadfast, steady, stiff, strong, strict, stubborn, taut, tense, tight, tough, unbending, unchangeable, unwavering

Sudden:

abrupt, accelerated, acute, fast, flashing, fleeting, hasty, headlong, hurried, immediate, impetuous, impulsive, quick, quickening, rapid, rash, rushing, swift, brash, brisk, brusque, instant, instantaneous, out of the blue, reckless, rushed, sharp, spontaneous, urgent, without warning

Thrust:

(forward) advance, drive, forge, impetus, impulsion, lunge, momentum, onslaught, poke, pressure, prod, propulsion, punch, push, shove, power, proceed, progress, propel

(push hard) assail, assault, attack, bear down, buck, drive, force, heave, impale, impel, jab, lunge, plunge, press, pound, prod, ram, shove, stab, transfix, urge, bang, burrow, cram, gouge, jam, pierce, punch, slam, spear, spike, stick

Thunder-struck:

amazed, astonished, aghast, astounded, awestruck, confounded, dazed, dazed, dismayed, overwhelmed, shocked, staggered, startled, stunned, gob-smacked, bewildered, dumbfounded, flabbergasted, horrified, incredulous, surprised, taken aback

Torment:

agony, anguish, hurt, misery, pain, punishment, suffering, afflict, angst, conflict, distress, grief, heartache, misfortune, nightmare, persecute, plague, sorrow, strife, tease, test, trial, tribulation, torture, turmoil, vex, woe

Touch:

(physical) - blow, brush, caress, collide, come together, contact, converge, crash, cuddle, embrace, feel, feel up, finger, fondle, frisk, glance, glide, graze, grope, handle, hit, hug, impact, join, junction, kiss, lick, line, manipulate, march, massage, meet, nudge, palm, partake, pat, paw, peck, pet, pinch, probe, push, reach, rub, scratch, skim, slide, smooth, strike, stroke, suck, sweep, tag, tap, taste, thumb, tickle, tip, touching, toy, bite, bump, burrow, buss, bury, circle, claw, clean, clutch, cover, creep, crush, cup, curl, delve, dig, drag, draw, ease, edge, fiddle with, flick, flit, fumble, grind, grip, grub, hold, huddle, knead, lap, lave, lay a hand on, maneuver, manhandle, mash, mold, muzzle, neck, nestle, nibble, nip, nuzzle, outline, play, polish, press, pull, rasp, ravish, ream, rim, run, scoop, scrabble, scrape, scrub, shave, shift, shunt, skate, slip, slither, smack, snake, snuggle, soothe, spank, splay, spread, squeeze, stretch, swipe, tangle, tease, thump, tongue, trace, trail, tunnel twiddle, twirl, twist, tug, work, wrap

(mental) - communicate, examine, inspect, perception, scrutinize

Wet:

bathe, bleed, burst, cascade, course, cover, cream, damp, dampen, deluge, dip, douse, drench, dribble, drip, drizzle, drool, drop, drown, dunk, erupt, flood, flow, gush, immerse, issue, jet, leach, leak, moisten, ooze, overflow, permeate, plunge, pour, rain, rinse, run, salivate, saturate, secrete, seep, shower, shoot, slaver, slobber, slop, slosh, sluice, spill, soak, souse, spew, spit, splash, splatter, spout, spray, sprinkle, spurt, squirt, steep, stream, submerge, surge, swab, swamp, swill, swim, trickle, wash, water

Wicked:

abominable, amoral, atrocious, awful, base, barbarous, dangerous, debased, depraved, distressing, dreadful, evil, fearful, fiendish, fierce, foul, heartless, hazardous, heinous, immoral, indecent, intense, mean, nasty, naughty, nefarious, offensive, profane, scandalous, severe, shameful, shameless, sinful, terrible, unholy, vicious, vile, villainous, wayward, bad, criminal, cruel, deplorable, despicable, devious, ill-intentioned, impious, impish, iniquitous, irreverent, loathsome, Machiavellian, mad, malevolent, malicious, merciless, mischievous, monstrous, perverse, ruthless, spiteful, uncaring, unkind, unscrupulous, vindictive, virulent, wretched

Writhe:

agonize, bend, jerk, recoil, lurch, plunge, slither, squirm, struggle, suffer, thrash, thresh, twist, wiggle, wriggle, angle, arc, bow, buck, coil, contort, convulse, curl, curve, fidget, fight, flex, go into spasm, grind, heave, jiggle, jolt, kick, rear, reel, ripple, resist, roll, lash, lash out, screw up, shake, shift, slide, spasm, stir, strain, stretch, surge, swell, swivel, thrust, turn violently, tussle, twitch, undulate, warp, worm, wrench, wrestle, yank

#Very helpful!#Had to reblog for my fellow writers :)#writers on tumblr #writing

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