Purification Project: Succubus
by SerynSiralas
Copyright© 2026 by SerynSiralas
Fantasy Sex Story: After many centuries of service, Sera, chosen of Elune, attended to by her faithful priestess companion, Erys, is hand-picked for a most unusual, most dangerous mission. Not to do battle with the enemies of the goddess, Elune, but to tame a succubus through sex. Having long dreamed of eloping with the priestess rather than a demon, Sera is hesitant, but finds her hand forced by Erys.
Caution: This Fantasy Sex Story contains strong sexual content, including Fa/Fa Fa Consensual Fiction Fan Fiction Futanari High Fantasy DomSub Rough Group Sex Interracial Size .
On the tranquil surface of the endless and yet enclosed ocean of Sera’s mind, there was a disturbance. After many hours, many days of trying she had sunken into a meditative state, nourished by her connection to the goddess, Elune, and little else, and so she had sat for uncounted moons, seeing and hearing nothing, feeling nothing, time washing over her not without being felt, but without being registered. It changed. Something changed. The air in her quiet enclosure, her cell, was disturbed. There was a foreign presence, someone else, who brought unwelcome novelty to her. No longer was the air in equilibrium, precisely as warm as she desired it, no longer was the silence total, and no longer was she free of any scent.
Sera took the first conscious breath of many nights, and the honey-lavender scent of Erys assaulted her nostrils, and spread in her mind. Thoughts sprouted in the wake of that sensation, bringing her closer to the self that had laid dormant and now, at last, rose to inhabit her body again. How long had she been sat there, in meditative trance, waiting to be called upon?
Without success, she tried to vocalize that thought. Nothing but crackling sounds and breath came out. Sera inhaled, and blinked. Slowly. A single slit in the spherical, druid-grown coccoon of wood in which she sat allowed moonlight in, and by that light, she saw her own hands. Purple skin. Strong. As she had left them. Placed upon her knees, her legs crossed. Another breath. She was once a sentinel, now a kind of knight. Blessed, brought out to handle one crisis or another, otherwise remaining in trance, cared for by Erys. The priestess. Her priestess. Caretaker. The one who laid her to rest, lulled her to something not quite sleep, but a dissociation so profound and all-encompassing that she understood and registered nothing. Not until she was brought back. Sera tried again, after swallowing. Her throat was dry, but it still helped. Somehow.
“Why am I back? Why have you called me?”
“We need your help, sister,” Erys said.
Sera closed her eyes, trying, with ethereal thought-fingers, to capture that voice, to entomb the words within her mind, so that she could keep them as hers, forever. She breathed deep, focused inwards, but nevertheless felt the memory of Erys’ delicate voice slip her mind again.
“When will I be free of this debt?”
“What debt, sister?”
“Is that ... not why I sit here,” Sera said, halting herself. “Why am I here, if not to repay some debt?”
“You have chosen this, Sera,” Erys said.
Still, they had not seen each other. Sera remained on the floor of the little wooden bulb. Cell. Facing the arrow-slit window, her senses still settling in her. Competing for attention. She saw a sliver of the midnight blue, star-studded sky. She scented the priestess’ clean, perfumed form, the earth and vegetation outside, the rock giving off the heat it had absorbed throughout the day. She felt the cloth upon which she sat, the pliant wood below. Her own hands upon her knees. The temperature slowly falling, the humidity lowering. Erys had to have left a door open behind her.
“I chose this?”
“You looked upon me, looked me in the eyes, and nodded, when I asked, last, if you still wished to serve the order as you have for decades,” Erys said. “So, I set you here. Again. Agreed that, when next there was a need for you, I would call upon you.”
“And now there is a need?”
“You ought to wake properly, first. To be blessed, to have your connection with the goddess reforged.”
“Elune,” Sera said. She breathed in again, and tore her eyes from the little slice of the outside, to instead look at her arms. Bare, up to the middle of each upper arm. Strong. She was strong. Thick, blue-white, dimly shining bands of what seemed like luminescent paint coiled up and down, around, occasionally branching off into spirals. In the desert-ocean nothingness of her mind, soft moonlight came to her, wreathed her in its glow, and comfort. Again, she breathed in, deep. Closed her eyes, and allowed the feeling to encompass her, allowed the little, faint prickling dots to run their course across her skin. To her shoulders, her chest and back, her thighs.
Sera sensed the graceful footstep of her priestess, her sister in the faith, by her side. Standing there for a moment, then advancing to stand before her, turning in place to face her. Opening her eyes, she looked up, and saw her caretaker. Unbidden, Sera’s right hand, its fingers, rose from her knee just half an inch. There was an urge for it to rise further still, to find Erys’ cheek, and caress it. But she knew, as well, that this would be wrong. Unwise, somehow. Too familiar, too close. Closer than they were. Had been.
Instead, Sera watched Erys, framed by the pale moonlight, find a seat on her knees. White, simple robe, white tresses controlled by a ponytail nevertheless reaching so far down her back as to make it impossible for Sera to see where it ended. Faded, lilac wings painted on her face. Erys’ eyes were unusual, and until Sera had been sent far south, and had come upon a lagoon with unfathomably clear, turqoise-blue water, she had not had a natural thing with which to compare them. When had she been sent south? What had she done, there?
Erys, who seemed much more calm and comfortable with the situation than Sera, offered an understanding, pleasant smile. Rising from her seat on her own heels just so, she did not hesitate to reach her right hand out, cupping Sera’s cheek. Warm, and soft, and ... why was it fine for her to do it, if it was too familiar for Sera to do it? She looked into Erys’ eyes, and then lowered her gaze, as well as her brows.
“You have been torn out of nothing, and everything is very confusing right now, Sera, my knight. I know. I understand. But it will come back to you,” Erys said. She stroked Sera’s cheek, just so. “If you will only be patient, and let me work.”
“Work? On me?”
“Yes, sister,” Erys said.
Sera nodded. She raised her eyes again. Erys was a head smaller than her, and easily noted as so when sat where she was. Smaller, but confident in her smooth movements. Confident in the hand that remained, for another few seconds, on Sera’s cheek. Withdrawn, then, and dipped into a small pot that the priestess had produced from somewhere. From a sack, which she had brought in with her. Sera’s attention focused on the two extended fingers, index and middle, which emerged outstretched from the container, their tips aglow with azure-white material. Clinging to them. Sticky, and thick. Sera leaned backwards a few inches as Erys’ fingers approached her face.
“Be still, sister. I am touching up your markings, nothing more. Or less.”
“Markings,” Sera said. She took a breath, eyes sinking to her arms. The bands snaking around and over her skin had to be on her face, too. She exhaled audibly through lips only just parted, and then nodded, leaning back into her former position. “Fine.”
Erys’ fingers, beneath the sticky, cool material being carefully smeared against Sera’s skin, were warm. Comfortable. She wanted their touch, and a thought, at once her own and feeling an intrusion, came to her, a reminder of who Erys was. They worked together before. Many times. They had been here, in just this position, many times. And when Sera went into the trance state, Erys’ fingers had been there. A soft humming. The knight – that was what she was – had thought to herself that she hoped and wanted those fingers to be in place again when she woke. Even knowing, as she knew, that she would be confused when emerging again from slumber.
Those digits traced two curving lines down either side of Sera’s face. Jagged, in places. Glaives. Her markings were glaives. She raised her right hand, curling her fingers around Erys’ wrist, not to crush, not really even to stop, just to hold.
“We ... were close,” Sera said.
A wry smile creased Erys’ lips. “Were we?”
“I think we were.”
“I think you wanted us to be, sister,” Erys said. She wiped her hand thoroughly in a piece of cloth, and then laid her fingers against Sera’s cheek once again. For a little while. “What do you remember?”
“You were with me when I went into this trance. And I hoped you would be here, too, when I woke,” Sera said. “We have worked together for a long time. Known each other for a long time. You wake me when there is a need for me, and otherwise, I sit here. It is safer that way. Though I know not why.”
Erys caressed Sera’s cheek, and then withdrew her hand. Dipping its fingers into the pot once more, she indicated the vest and shirt that Sera wore with her head. “Remove those.”
As commanded, Sera removed her clothes. It was, for a moment, a mystery to her how she maintained the physique she still had, given she had remained still as a statue for days. Weeks. Months? But then, as she had not needed to eat or drink thanks to the power that flowed through her, neither had her body deteriorated at all. She was precisely carved from marble, as she had been when she entered the trance state, chiseled abs, muscle, on display. The swirling, thick bands of power coiled up over her torso, across one heavy breast, splitting then to reach shoulders and arms.
With a slow movement, one Sera had difficulty parsing, Erys pressed her fingers against some of that muscle, taking in a deep breath as she smeared the same azure-white, glowing substance into place, atop the already luminous lines. The priestess whispered nothings under her breath, words that Sera could not hear, little other than the occasional fragment recognized more from a pattern of breath expelled and lips moved than because the coherent sound reached her ears. The name of the goddess. Elune. She was being blessed, invested with power.
Erys stood, placed herself behind Sera, and repeated the seance there, drawing atop those lines that no doubt already existed, placing into them another measure of strength. And Sera remained, all the while, sat with her shirt and vest in her grasp, in her lap.
“We must do something about these scars,” Erys said, as she seemed to finish her work on Sera’s back. “Unless you want to keep them?”
“You have asked that before,” Sera replied. She narrowed her eyes, drawing thoughts up from an internal well she did not know she had. “And I asked you not to do anything.”
“You did.”
“Why ask now, again, then?”
“For precisely this reason,” Erys said. She placed the tips of a few fingers, spread, feather-light, against Sera’s strong back. “To make you remember.”
Sera remembered that, and more. It came back to her, like moss infiltrating and covering ruins, thoughts that were hers, a past her, returned, and covered over more and more empty space. Filled in the parts of her that were missing. She remembered, too, that she would now, at this point in proceedings, ask for the pot of sticky material herself, and that she was to touch up her lower body herself. That she did not want the priestess to have to kneel before her and do so. It was not proper. Sera reached a hand behind herself.
“You made me remember. At just the right moment, priestess. I will do the rest myself.”
“You need not.”
“I do,” Sera said. “Please, the pot.” After a few moments, it settled in her hand. A tiny thing, feeling light, and yet she knew that it would still be swimming with as much of the stuff as she needed. “I will be out in but a few moments.”
Seconds passed, and then she heard Erys rise, and walk to the door that she knew was there, even if she had yet to turn and see it. The hiss of the fabric covering the entryway moving over the priestess’ form, and then, the cloth settling, the weights at the bottom finding rest, Sera was once again alone.
Along with memories, with thoughts that told her who she was, who her friends and family and acquaintances were, alongside the glorious and terrible deeds she had accomplished in the past, had come other notions. Fragments of dreams, and desires, which she knew then that she had forbidden her past self – she should not have mentioned being close to Erys. She had not been. She had long desired to be close, but also known that she could not so denigrate the woman. Could not put in jeopardy her sacred duty, which they oversaw together. But, goddess, to be blessed, to be chosen, and then be unable to even think of using the blessing. Did Erys want it?
Sera stood. Slowly, unsteadily, for a few moments, after which she pressed open the settled buttons of her trousers, and began to work them down her hips and thighs. There were multiple aspects to being one of Elune’s chosen, the majority of them entirely chaste and well-known, but one thing in particular was kept rather more quiet, and for good reason. The reputation of any priestess working with one of the chosen would be sorely challenged – not that anyone engaged in anything untoward, but that would not stop any of the kaldorei from talking among themselves.
With an effort, she pressed her trousers another inch down, and then another, and, at last, they slackened and fell, revealing the colossal girth with which she had also been blessed. Its stirring was what had prompted her to ask whether she and Erys had been close, and though nothing but the priestess’ scent remained now, each breath let the lavender mist curl into and around Sera’s thoughts, causing the behemoth to waken a little more. She closed her eyes, breathed out, and found that it only caused her to cease, not to relax.
That colossus still remained in its place, wide, soft, flexible bands of cloth holding it against her densely muscled left thigh. There, it pulsed, very slowly. Waiting for Sera to slip up, for an errant thought to tell it to go on as it had been, and given just a few more moments, another memory came to her, arising from the murk of her mind at precisely the wrong moment. A moment’s mistake, when Sera had pushed aside the cover over the doorway to the baths, where her eyes had feasted upon Erys’ firm, peachy backside. She could not let go of that image, nor, she realized later, had there ever even been a question of control. Natural, primal, almost as if the gift she had been given by Elune set in her, encouraged in her, such behavior.
Sera took a deep breath, and sighed it out between parted lips. Tried to still her mind. Focused instead on the pot of sticky material, which she dipped twin fingers into, to then follow a slowly swirling band down her right thigh. She had to seat herself again to follow it all the way down past her knee, thrice circling her shin, tapering off into nothing as it moved past her ankle and onto the top of her foot. Much the same repeated on her other thigh. And, in that precise moment, rather more dangerously, from her hard stomach to the root of her huge, fat cock, down its smoothly-veined, weighty length, splitting into a twin-branched tree, one along its top, one curling down, repeatedly crossing over that wide, thick cumvein, as if to be sure to instill the blessing of the goddess in any load she pumped out.
Not because she wanted it to, but as a reaction to the stimulation, Sera picked up a piece of cloth to wipe the thumb-sized, hefty bead of softly glowing pre-cum from the head, the large drop still infused with the light of Elune even smeared and separated from its source. Again, Sera sighed out a breath, a hand resting against the side of that monster. Chosen. Somehow, this was a blessing. Somehow, she had to suppress the vivid image, the fantasy above them all, from playing in her mind once more. She failed, and pushed her pelvis forward against nothing, her mind unable to conjure the sensation that actually pressing into Erys’ ass would give her. She flexed, slowly, and another drop lengthened into a strand, which broke, and splattered to the floor. Glowing like a sort of flattened pearl, indigo filled with the purest white light.
Another moment passed. Sera, the sacred paint dried, was at last able to begin to work her trousers back on, though it was all the harder to get them on now, as thoroughly worked up as she was. It was not food or drink she lacked when she woke, but touch. Touch that Erys had given, before being sent away, so that her knight could regain control of all of herself. A paltry, thin veneer of control, one that had her struggle, wait, try to relax, and struggle again for over ten minutes, until, at last, Sera was able to re-seat her pants and button them back up. She closed her eyes for a few more moments, but found it not easier, but harder not to think of Erys in that singular, exploitative way. She needed a distraction, and, oddly, it would have to be Erys.
Sera steeled herself, exhaled, and ran a hand down over her face, as if to thus wring emotion from it, presenting only the stern control which she imagined the priestess expected of her. Play the statue. Dependable. Measured. Composed. Another breath, and then she turned, exiting her little cell.
Emerging into a dim hallway, Sera first looked side to side, then up. Erys was lit by little blue flames contained in blessed stone lamps hung from a ceiling several feet above, a simulacrum of a starlit sky maintained by what seemed to be lazy firefly lights moving endlessly back and forth along the corridor. Unceasing, turning when they reached the door at one end, and then again at the bare wall at the other.
“What is the mission?”
Erys took the few steps between her and Sera, reaching out for and taking both hands in her own. Thumbs drawing slow circles on the back of each palm. She did this rather than answer, and Sera felt a need to wash her hands thoroughly. It had been not so many minutes since she had been struggling not to stroke her mammoth blessing, and now, the priestess’ fingers met her own. Those that had so struggled. Beneath Erys’ breath, prayer could be detected. The faint movement of lips. Sound upon sound, some suggesting that she was in need of a drink. Dry lips.
“Priestess?”
Rather than answer, she shook her head. Faint annoyance in the movement, and so, Sera knew that she was not to disturb the investiture of power going on. The blessing of those markings she had refreshed herself, not just with power, but with the enhancement that seemed to take only on Elune’s chosen. Spellwork that made her slowly gather the power of the goddess to her, into herself, rather than shed it. That was the network Erys worked and made strong again, not some temporary infusion. Minutes passed so, in the dusk, their hands in each other’s, until the priestess finally looked up.
“Legion remnants still dot and pollute the lands despite their defeat,” Erys said. She kept Sera’s hands in her own. “One such dot, a succubus calling herself Nyxsheni, has grown careless, having seduced quite a following. That following not only feeds her, but it seems to make her bolder. Makes her feel safer.”
“And it falls to me to deal with her? Can someone else not swing the glaive and decapitate the beast?” Sera remained still, failing to make herself pull her hands free of Erys’ pleasant grip.
“She has become powerful. Strong enough that your special talents are needed, if we are to conquer and extinguish her influence.”
“Someone else could be blessed and infused,” Sera said.
“No one is blessed as you are, sister,” Erys said. She looked up at Sera intently, not speaking the words, but conveying, very clearly, that she understood the kind of blessing that came with being one of Elune’s chosen. It was difficult to hide.
“I will think about it,” Sera said. She pulled her hands free from Erys’, at last. Rather less enchanted than she had been a few moments before. “While I recover.”
“Of course, sister.”
A night passed, and then a day where rest proved elusive. Sera spoke to one of the other attendant priestesses at the order’s headquarters, to whom she confessed that she preferred to stay in the halls. Preferred not to have to be the one to deal with the succubus, Nyxsheni, that she would rather withdraw from her duties as both chosen and knight, and perhaps draw Erys with her. So many years had passed in trance and fugue-state that, every time she emerged into the world again, it felt a stranger. Its people felt like strangers, with so many changes, so many tragedies, forced upon them in but a brief few years. Centuries had passed with little of note happening, once.
Sera rose from her bed, in which she had gotten little sleep that day. If a succubus had set up its base of operations close to a knightly order meant to hunt down and exterminate threats such as her, it was either exceptionally stupid, or powerful. In either case, she did not feel like it was her place, her duty, to deal with it. Certainly not to do what was heavily implied by Erys. Using Elune’s gift to pound a demon into submission? It was for Erys, if it was for anyone. Not a succubus.
When Sera wandered the halls under fake starry skies, and the grounds under a real one, she found no trace of Erys. Or, rather, she found many of the expected traces – notes, half-consumed mugs of tea, dog-eared tomes – but none recent. All day-old. Inquiring, she learned, then, that Erys had left very early that evening. Having been told upsetting news, professing a belief that Sera had grown tired of her long service to the order, and so, that Erys would have to deal with the succubus herself rather than rely on her long-time protege and weapon in elven form. Sera.
Such a mission promised not to be simple, but at least quickly determined. Either you had the power to contend with and kill or subdue the demon, or you would be added to its roster of servants, its harem, your will subverted to its desires. Thus, when another night passed without word, and then another, and a third, Sera grew convinced that Erys had been added to the roster, rather than extinguishing Nyxsheni’s fel flame. On the fourth night, a report came to the order that a priestess seemed to have fallen into the service of the succubus, and so, Sera’s fears became manifest.
There was nothing else to do but what Erys had first wanted her to, without stating it explicitly. No matter what now happened, any vain dream of idyllic and untainted life with Erys had been put on hold, and perhaps more than that, and it was Sera’s doing. She was tired of service, and so, not recognizing Erys’ dedication to the land’s safety and the order’s mission, a knight’s refusal to serve had sent the priestess into the jaws of the enemy. An enemy she proved unable to properly contend with.
It was not to rid the world of another succubus, another minor evil, that Sera retrieved her old combat gear. She was past caring for such a thing, recognizing that a past self would have felt ashamed at such thoughts, but no longer managing to produce much guilt at the thought. She had given enough, now. Enough of herself, enough life, and owed no more. Not to duty. To Erys, she owed much. From Erys, she wanted much.
And so, Sera donned her elaborate armor, shining, silvered steel, clacking and rattling as segmented sections flexed and worked with her movements. The armor was necessary, not to fight the succubus, but to provide the appearance of an idiotic plan – to fight a seductress. So used to such tricks working, Nyxsheni might just expect that someone turning up in armor was the kind of simpleton she could control with them, perhaps not realizing, until it was too late, that she faced someone more than her equal. If Sera could give off the impression of something near to control, she could get close enough to the succubus for the actual plan to work. Close enough that she could fuck the succubus into the ground, trusting that the power invested in her could conquer the fel fire in the demon’s heart.
To save her priestess, Sera had to employ her grandest blessing. There was no other way. Trying to fight her way in, with how many blindly loyal servants the succubus had reportedly amassed, would be suicidal. No matter her skill in battle, her technique, reach, size, a tide of people enamored with and following the commands of someone no doubt entirely capable of sending them to their death would end poorly. Defense from all angles simply was not possible, and armor a stopgap, a chance not to have a mistake be the last. Not a perfect bulwark. No, it would have to be guile, and the succubus’ idea that she could subdue the will of one of Elune’s chosen through sex, that would carry the day.
It was very early evening when Sera set off. On her own, informing no one of where she was going. It would be obvious, anyway. The tavern where Nyxsheni had taken up residence, surrounded by her sycophant horde of admirers, was the only logical destination. Half a night’s journey through uncharted forest, the shield of anonymity that kept the order from the sight of its enemies, and Sera would be there.
In the borderlands where Felwood slowly gave way to Ashenvale forest, the lush greenery of the south encroaching on the twisted, corrupted landscape of the north, lay the tavern. A place on the precipice, once, but years of effort in reclaiming the lands north, blighted by the second Burning Legion invasion, had shifted it from that dangerous edge and into the relative hinterlands. Still a last stop, but no longer the last safe option. It lay several hours of walking into the living, noisy, enchanted woodland of Ashenvale, leaves endlessly rustling, brushing against one-another, drowned out here and there by loud insects, or aggressively courting birds.
Around the single, large structure, grown by druidic hand as so many kaldorei buildings were, nature stilled. Not that decay had set in. Instead, it seemed as if animals were drawn in by the same energy, the same invisible hand, that kept small packs of night elves, humans, trolls, and many others standing around. Every available surface had someone leaning against it, or sat upon it. If not the hindquarters of an elf, then a neat row of blue tits, chirping now and then. Or a squirrel, a badger, even a wayward crab had found its way to the lone building. Somehow.
Sera approached. Looked up to the open balcony of the two-story tavern, seeing the backs of several different people – both her own kind, and others. Each enraptured, it seemed, by whatever was happening inside. Some were armed and armored, others near-enough naked, and no one seemed to mind either way. Every scrap of attention was turned inwards, towards a warm and comfortable room, of which Sera could see only a fragment of a ceiling, lit by orange-red light. Soft tones, no flickering.
As she drew closer to the large building – really one central building and three adjoining, hammered and bolted-on structures, she came to a momentary halt. The same invisible hand that had captured so many other beings who had strayed too close came for her, too, but it was an ethereal brush of fingers against her cheek, beneath the helmet which entirely enclosed her face. A nail digging into the surface of her mind, getting nowhere, finding and digging no holes. That was the feeling, with more strokes, more fingers digging, as she drew closer.
She spent no time at all on the lost souls outside, most of them not even looking at her. The few that did could not conceal their jealousy at the mere fact that this stranger, this silver-filigree, towering knight, was allowed to step inside where they, presumably could not. At a certain point, the seductive agents of the Legion have used up their servants, and so they are sent away. To wither and die, or to remake and rebuild themselves, so they can once more be consumed. Such was the fate of those outside, or, rather, it would be. If Sera failed, and succumbed. She halted once more, for a moment, and when she began moving again, metal-covered boots rattling and stamping against the living wood of the floor, her limbs shifted subtly slower as she moved.
From within the ground floor came the scent of people. Not the enclosed, thick, unpleasant smell of unwashed filth and day-old sweat, but rather a pleasant warmth that attacked the nostrils. Sera shook her head, and blinked, and cast off the building illusions imposed upon her senses. Saw what the succubus had amassed, not what she wanted to portray. Saw people of all different kinds, shapes, draped over sofas, chairs, on the floor, behind and atop the counter. Most asleep, or so taken with the mind-warping fel magic infusing the air that they laid and stared, and did nothing save indulge in the false pleasure of senses deceived.
A few had the energy to slowly pleasure themselves, a few more to fuck, or to eat, or drink. But, on the whole, the dark interior, lit by churning, orange-red globes of captured light, was more a landscape of people than of things.
Forging a path through this cloying mess of bodies was an arduous task. Had it been a battlefield, Sera might have been able to drive them before her, make the mass part so as to get away from the reach of her glaive, but none of those present had done anything to deserve death or injury, as far as she could tell. The trolls, or lone orc, perhaps, but no one else. So, like a plow in tough ground, she moved aside the landscape as best she could, slowly, moving the occasional questing hand away from her thigh, or backside.
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