Japan, Year 202X

The town of Iino, just south of Fukushima and near Mount Senganmori considered itself a hot spot of UFO activity, a title the slowly dying town held onto and pushed further into after the events of the nuclear disaster in 2011. This far in the rural mountains of Japan, it gave the people a harmless thing to obsess over, build museums to, and for those around the area to guffaw and laugh at.

Only they were right, with an alien ship indeed crashing into the mountainside, the government moving far quicker than even the most enthusiastic residents of Iino could react to capture, clear, and cover up the incident. The ship and its parts were moved to the nearby city and buried deep in a black site where scientists could observe, interact, and experiment on the extraterrestrial craft.

One of those scientists, Dr. Rachel Laine, was the odd one out. As a foreigner she normally wouldn't have even been allowed on site but her husband Akira was the lead and her own work in the field of quantum physics gave her valuable insight. The rest of the group was less enthusiastic about her presence, even less so when she made the original breakthrough on how the ship had made it to Earth.

It wasn't enough that the ship was alien, but it was extradimensional as well, powering its drive with a crystal that drew its energy from another plane of reality, allowing it to defy the very laws she had learned to generate infinite power. The possibilities were endless, but Dr. Laine urged caution as the team began to move rapidly, the rest of the scientists eager to prove their own worth and not be left out of the annals of history.

They were reckless, and despite her warnings, concerns, and eventual attempts to get them removed that against the wishes of her husband ended up with her own expulsion, they continued on unaware of the dark secret the technology contained. It was inevitable that they would test something beyond their comprehension, and one fateful evening her own husband was overseeing the production of a prototype drive when the crystal activated on its own. The resulting explosion killed everyone in the lab, but what came next would be a disaster worse than the one from years before as it created a tear in reality itself…

And the Cult of Ssythrax began to pour through.

Those early days were difficult, learning more about the strange cult and their powers, about the god that they worshipped and the realm of energy that he dwelled in. Dr. Laine began calling it the Void, a gap of endless possibility between dimensions where someone, or perhaps just on its own, an entity known as Ssythrax came into being. They enslaved humans and wielded dark powers, with some people even being transformed into more monstrous versions of the lower ranks, leading the cult against their former species.

It wasn't until Dr. Laine created the Void Power Beacon, a bracelet and diadem she had designed specifically to pierce reality and take a fraction of the Void's power for humanity to wield that the tide began to turn the other way. The technology was dangerous, with only a few special young women (and the Doctor herself) capable of wielding it without hurting themselves. In the surrounding city, they managed to find five such girls including the doctor's own daughter and her closest friend, and with the power to transform into heroes of light, the Sol Sirens were born to protect their planet from evil.

Yuna was a modest and gentle girl known for her traditional beauty and kind nature, becoming Siren Yellow to help those in need. Sakura was a brilliant student in her own right, with the girls knowing that no matter the odds Siren Blue will come up with an intelligent plan of attack. Kyoko was a rougher sort than either, the good-natured but bad-tempered tomboy ready and willing to take the fight to the enemy as Siren Orange. Hotaru was a normal schoolgirl before the incident, but no one could question her willingness to put it all on the line for her friends as Siren Green.

And her friend, Ayumi, was the best of them all. Brave, beautiful, and courageous. Despite her mother's foreign heritage everyone knew she was a natural leader and so Dr. Laine's daughter took command of the team as Siren Red.

Together, they managed to contain the problem to an area of town now known as the Exclusion Zone where the fragile barrier between realities could be torn open at a moments notice by Ssythrax's cult. Their command center was a spire of silver and glass erected in mere months, just on the edge of the zone where they could react to a moment's notice.

Unfortunately for them however today was different, because they were rescuing one of their own.

"Aww… is special, pretty Ayumi here to save her friend?" Surrounded by Ssythraxian slave soldiers, a suspiciously normal-looking school girl stood in a menacing fashion next to another soldier, identical to the other enslaved human women around her except for the green glow of a gem on her wrist. Towering behind them was a statue of the Dark God himself; broad chested with six massive arms spread wide, hands tipped with sharp claws. His snake-like visage was alight with the purple glow of corrupt energy leaking from the sockets of his eyes, fanged mouth curved in devilish delight.

"You don't have to do this Mikumi! You can still turn back to our side!" Siren Red grimaced as she dodged a soldier's swing, gracefully sending the person flying with a kick as she turned back to face the girl. It was a strange feeling to be back at her old high school, lost to the Exclusion Zone, but she couldn't dawdle on that. It was also strange for one of the Ssythraxian Generals to know who she was, and while she would try to save both Mikumi and the enslaved Hotaru next to her, Siren Red wouldn't hesitate to put down her former classmate to save her closest friend.

Mikumi laughed maniacally, dark purple energy coiling around her. "Turn back? Because here you are to save the day again? I was under His control for weeks and you were nowhere to be found but now that I've taken Hotaru you're here in less than a day? This is your fault!"

Siren Red flinched, the accusation as false as it was damning in its own way. It was impossible for them to keep track of everyone who gets captured and transported back to the Void, the Sirens could only do their best to rescue those who come back as fodder for the Ssythrax’s Generals. If she had known and been able to do anything, she would have done all in her power to rescue Mikumi. They weren't particularly close but Akumi had been student council president with Hotaru as her second and Mikumi had been treasurer.

A position she had used to pull Hotaru into the Exclusion Zone alone and ambush her. Siren Green was known for her loyalty and selflessness, and she wouldn't hesitate if a friend called her in need.

The sound of a heavy thud echoed next to Siren Red's head and pulled her out of reverie, Siren Orange fist colliding with one belonging to the exosuit of a Ssythraxian Juggernaut. Unlike the regular slave soldiers, mechanical fists and legs encased an enslaved human, their face obscured by a silver helmet and the suit giving them far greater strength than a normal soldier. Unfortunately for the Juggernaut, Orange's signifying trait was her strength, and they were sent flying into a crowd of soldiers several meters away.

"Yo! Don't let her get to you Red! If she's this far gone there's nothing left to do but punch her until she stops moving!" A manic grin was ever-present on Siren Orange's face when they got into a scrap, the young woman having been in trouble several times over for starting and almost always ending fights at her old school.

A grin that flagged slightly as a tendril of dark energy wrapped around her exposed fist, a feeling of peace and serenity flooding her system. For a moment, the energetic Siren felt herself begin to surrender, a heavy blanket of submission overtaking her normal aggressiveness as her muscles started to relax…

"Siren Blast!"

A burst of blue energy crashed into the Angel, a Ssythraxian soldier that was little more than a woman encased and restrained in a cocoon of purple latex, floating in the air with several tentacles of corrupting energy emanating from her back. The Angels radiated an aura of submission to their Dark Master that was difficult for even the Sirens to shrug off at point blank range, a lesson Orange should remember more often as she shook it off and looked towards her teammate.

"You can't just hit every problem, stick to the plan." Siren Blue adjusted her glasses, surveying the field and continuing to fire off concentrated blasts of energy. "Yellow, Enforcers at three o'clock."

More timid than her fellows, Siren Yellow glowed with vibrant energy regardless, her hands extending out towards a large group of slave soldiers. At their back were a different sort of Ssythraxian, dressed all in black and eagerly whipping their slaves into a frenzy. The sadistic Enforcers could turn an average group of soldiers into a massive problem, but Siren Yellow quickly snuffed out their energy with her own, gentler wave of yellow light, pacifying the gathering of enslaved humans, purple suits beginning to fade as the Siren's powers dissolved Ssythrax's hold over them.

"Got it!" Unconsciously, Siren Yellow put both her hands to her lips in shock after speaking so loudly. Yuna came from a respectable, upper-class family and was trained in more delicate arts than fighting cosmic threats.

"It doesn't matter! I'll take you all on myself! All glory to Ssythrax!" Mikumi screamed, a pillar of dark energy coalescing around her, the body of an average school girl twisting into a gaunt monster, a purple latex dress swirling into existence around her growing form. A large mitre bearing the symbols of Ssythrax formed above her head, covering her eyes as Mikumi's mouth twisted into something too large and too full of fangs for a human to have as she surrendered herself fully to the Dark God.

Siren Red let out a sigh as her teammates gathered at her back, their missing member oblivious to what was going on around her as she stood motionless next to the now monstrous Dark Vizier of Ssythrax, green light glowing brightly at her wrist in response. The time for talk was over. She held the vibrant ruby diadem on her wrist to her chest, the gem's light radiating powerfully before Siren Red thrust her hand out, unleashing a wave of powerful red energy that knocked back the entire initial wave of slave soldiers and other minions.

The attack was strong enough that several of the enslaved humans were stripped of their uniforms, removing Ssythrax's hold over them as the more powerful units disintegrated back into the Void. Pointing at the transformed General next to Hotaru, she shouted out the order to charge.

"Sirens, to arms!"

* * * * *

"Are you sure you're fine?"

"For the last time, yes. I just want to be left alone."

"I know, but after such a traumatic-"

Hotaru waved off Ayumi's words in annoyance, a grimace painting the young woman's face as she tried to usher her friend out of her bedroom. Chief Doctor Fujimoto had finally released her from observation after the other Sirens had defeated the Dark Vizier and rescued her and the captured civilians, and she was properly tired of being fussed over. Hotaru also wanted some privacy to wallow in some self-pity and judging from the worried expression coloring Ayumi's face she knew it.

"I don't even really remember anything after Mikumi ambushed me, so I'm less traumatized Ayumi and more embarrassed."

"You don't have to be embarrassed! She's my friend too after all, if she asked me to meet her outside-"

"But they didn't use her to get to you, they targeted me." Hotaru's voice was bitter enough to make her friend flinch, her reaction only making Hotaru feel even worse for herself. "Sorry. It's just the truth. You're Siren Red, the leader, the one who never makes any mistakes and if they thought they could have sprung the same trap on you, they would have."

She watched her friend nervously bite her lip as Hotaru restrained herself from rolling her eyes. Ayumi was the perfect leader; charismatic, courageous, and able to plan a fight both before and in the heat of battle. The blond half-Japanese girl was also gorgeous, her brilliant blue eyes and tall feminine figure had been all the high school they had both attended could talk about when she first arrived. If she had one flaw it was that Ayumi was completely oblivious to how incredible she was.

"They didn't target you because you were the easier target Hotaru; you're the most loyal and selfless of the Sol Sirens and wouldn't hesitate to help a friend in need."

Despite her surliness, Hotaru avoided clicking her tongue as her teammate found another way to turn the conversation away from Ayumi's own lack of shortcomings and instead try to build up a friend. She was obviously sincere too, her earnest belief in seeing the best in everyone yet another thing that made Ayumi the perfect leader of the Sol Sirens.

Earnest enough that even as upset and embarrassed as she was, Hotaru was tempted to let the young woman standing there in her loose red sweater and black skirt hug away all the negative self-talk swirling around in her head. Peeking out from the nearby bed though was a slip of purple fabric and the one thing Hotaru absolutely could not work through with Ayumi, forcing her to close her eyes and breathe.

"Look… Thank you alright? I feel much better, but I'd still like to be alone for a little while." Hotaru watched the tension leave Ayumi's shoulders at the gentleness of her tone. I wonder what she'd think if she knew the real reason I wanted to be alone? Who am I kidding, she'd find some way to work it into a positive.

"Alright." Ayumi clearly felt better now that it seemed like Hotaru had calmed down, taking her long blonde hair out of the loose ponytail it was in and shaking it out before retying it. "Well, if you still want to talk-"

"I know where to find you." A genuine smile did creep across Hotaru's face as it was quickly mirrored by Ayumi. All of the Sol Sirens had their own private rooms but they were close together, with the two long-time friends right next to each other.

The smile lasted long enough for her to gently close her door, falling away as she locked it and turned back towards her bed and the purple piece of contraband she absolutely should not have taken out of the hazard locker. Hotaru wasn't lying that she didn't really remember much of her time as an enslaved member of the cult, but when she saw the thing she had been hiding from Ayumi about to be incinerated, she had snatched it off the pile of trash and absconded with it to her room before she had even realized what she'd done.

I just… I just need to confront this feeling in the back of my mind… There's nothing wrong with confronting difficult emotions, Doctor Fujimoto even said so.

Hotaru's rationalization felt flimsy even in her own mind, but she required some explanation to her actions. Specifically a different explanation than the fact that, as she walked towards the bed and pulled out the garment she had rescued from destruction, that even just holding the slick fabric in her hands was enough to quicken her breath and tighten her nipples in arousal…

Turning around in the mirror, she held up the bodysuit of a Ssythraxian slave soldier in front of her body, unable to hold back the shudder of desire pulsing through her she beheld it. Unlike Ayumi she wasn't anything special, perhaps a bit taller than her peers but Hotaru's dark brown hair was cut in a messy bob, her face unremarkable unless she put in the hours of effort applying make-up to dress herself up. She still had no idea why the bracelet of pulsating green energy on her wrist had chosen her, especially as Hotaru's body was now aching to slip into the uniform of her enemy.

The doctor said I was clear. All the tests came back negative for any Ssythraxian energy influence, but why is my body so…

The purple material in her hands felt warm and smooth, thin enough to reveal even her modest curves but strong enough to cling to them tightly and display underneath it she was completely naked. Arousal found its way to her core, forcing her thighs to squeeze together in delight at the thought. Even though her mind was free from any influence or memories of her time underneath Ssythraxian control, Hotaru's body still clearly remembered what it had felt like and her taut nipples and dampening sex were eager to share.

Despite her shaky breath, Hotaru's hands were steady as she set down the suit and began to strip off her thin green sweater and jeans. Her modest handfuls didn't require a bra unlike her bustier comrades, but her soft cotton panties were eventually caught by her fingers and slipped off, removing the last potential barrier between her body and the smooth material of the slave-suit. Goosebumps littered her arms as she picked up the suit again, the open back wide and ready for her to begin slipping inside.

A perverse thrill slithered into her as she slid one leg inside, warm rubber encasing it as she began to pull the uniform up. The purple suit clung to her skin but there was no resistance until her foot hit the beginning of the stilettoed heel. Hotaru had never worn anything with a heel higher than two inches, and the six inch stem was attached to an arched sole that looked painful and contorting. Like the leg of the suit though, it seemed to conform and encase around Hotaru's foot and soon she was balancing on the delicate heel to dress the other leg.

How do they move so fast in these heels, and why is it so comfortable? I've worn flats that- Mmmmm! Hotaru's thoughts fluttered as her second leg made its way to the bottom, allowing her to stand and begin the process of pulling the suit up both her legs. The material it was made out of had some stretch, but then it would cling against her like a second skin, making her aware of every encased inch as soon she was almost up to her crotch. The sensation was like no other clothing she'd ever worn, her hand gliding along the smooth purple rubber and sending tingles of delight through her body. Having it around just her legs wasn't going to be enough.

She needed more.

A soft moan escaped Hotaru's lips as she pulled the suit up to her waist, stretching the material against her pussy, puffy and wet and all too eager to feel the smooth rubber wrap around it. Pleasure had her back arching as the latex fabric clung to her rear, clinging around each cheek as if it was tailor-made to her body. A part of Hotaru's mind knew that she could still stop, strip off the slave-suit and sneak it back towards the incinerator. Her body had other plans though, the pleasure of it encasing and wrapped around her lower body, having her pulling up the front to slip her arms into their sleeves.

Hotaru stretched out her fingers, the snugness of the suit as it stretched and then conformed perfectly around each digit. Her transformation bracelet repositioned itself on top, the science behind the device that existed in multiple worlds beyond her but the sight of it on the purple latex gave Hotaru a shiver of dark thrill. All that was left was for her to find the metallic-like seam in the back. Her nipples were hard and visible against the thin latex chest as she pulled tight, her hands gliding along her spine and finding the separated fabric seemingly gluing itself together and finally, blissfully, sealing the uniform around her.

A slave-suit... Her thoughts were fogged with pleasure as her gloved hands glided along latex fabric, stretching and smoothing it so that her body was covered perfectly. There were accents around her hips, chest and neck that matched the one along her spine, flexible but more rigid than the rest of the suit, that Hotaru had to align into place. Once that was done though, once every curve and angle of her body was on display in smooth, shiny purple perfection, she had to come face to face with herself in the mirror.

Her face was flush, lips parted as Hotaru panted at the sensation of almost imperceptible resistance to her every movement. There was no escape from it, clinging to her body so tightly that she could clearly see the shape of her aroused womanhood and the symbol above it. Normally glowing with energy, the jagged and curved symbol of Ssythrax was dull and dead along the arch of her mons, but Hotaru could still feel the pull of the slave-suit, and the heat of wearing something so wrong was all her own.

Fingers found one puffy nipple and pulled, forcing a moan from Hotaru's mouth as her other hand went down between her legs to stroke herself. Her body didn't care that she was wearing the uniform of her enemy, a uniform of submission and servitude to evil. All it cared about was the smooth texture covering every inch of her skin, the tingling of her aroused nipples and pussy throbbing against the warm smoothness in aching need. Hotaru let her legs spread, and to her surprise they went wider than she needed for just a hand, feet wide as her body crouched and the hand on her breast began to move to the back of her head…

Oh… Oh! A flash of arousal and shame shook through her, setting her body alight with the thrill of letting her other hand join its twin to rest on the nape of her hair, chest thrusting out and nipples diamond hard trying to pierce the fabric. Hotaru knew the position her body wanted to go into; they'd caught plenty of slave soldiers engaging in acts of worship, their mouths moving in unison to praise their dark master as they exposed their bodies as much as they could. Only it wasn't a slave soldier trying to enter into the position but Hotaru, and the embarrassment of such a pose was almost too much to bear.

She had another option though, one somehow even more shameful and yet that twisted feeling in her body was capable of delivering such bliss that Hotaru didn't stop herself from going back to the bed and picking up another scrap of purple latex. The skull cap, much like the suit, didn't seem like it was alive but Hotaru couldn't help the shudder of delight at the sensation of it gripping her skin, pulling it down over her head and the accented edges sealing itself up against the neck of the suit. Hotaru was completely sealed in now, a thrum of delight turning dark and devious inside of her as she turned towards the mirror.

No longer was there a reflection of her in a purple suit, Hotaru's individuality erased and reshaped into that of an obedient slave soldier cooing in bliss as she started to assume the position of worship. Second thoughts were being drowned out by pleasure, the knowledge that what she was doing was bad only adding an edge to the ecstasy pulsating through her. They were gone when Hotaru discovered a secret of the suit, her spread legs forcing her hips forward and finding a series of four nubs, barely noticeable and yet the difference in sensation to the rest of her smooth prison only enhanced their existence, surrounding her aroused clitoris.

Hotaru's body reacted on instinct, hips gliding forward to rub her hardened clit against the extrusions and sending waves of bliss through her veins, her legs spreading wider and letting her dip even lower. Hotaru's modest breasts strained against the latex as she thrust her chest further forward, hardened nipples joining her clit in delirious pleasure as she continued to hump the air. It was so wrong, so embarrassing to watch herself in the mirror and yet the only thing her brain could think of was "More.", pressure straining her throat as words began to form unbidden and yet…

"All glory to Ssythrax."

Her mouth couldn't help itself, her vision blurring at the edges as ecstasy was taking hold of her, forcing the heretical saying out of her lips. There were no consequences though, no sensation other than the slave-suit encasing her and rubbing against her clit with every worshipful stroke, and the dark desires tempting her to surrender to them as her mouth formed the words again willingly.

"All glory to Ssythrax."

They hissed out of her, pleasure vibrating from her very core and sending her spiraling deeper into its depths. As Hotaru released a sharp keen of need, her concerns began to melt away in favor of pushing herself to higher heights of ecstasy.

"All must serve Ssythrax."

"All must obey Ssythrax."

"Ssythrax is Pleasure, Ssythrax is Purpose, Ssythrax is Truth."

The mantras bubbled up from the back of her mind, each one a staccato of pleasure to her encased clit and nipples. Her confined body was wrapped in sensations that beat away at her desires, Hotaru's mind losing the ability to comprehend anything but the bliss that was enshrouding it and the words that were replacing her thoughts.

"His will is my will. Submit. Obey. Enslave."

Her tongue rolled out of her mouth as her eyes blinked slowly, drool starting to form as it returned to its proper place in worshipping the God of Darkness. Hotaru's body moved in rhythm to the words, each time ending with her clit rubbing against the inside of the suit, the small nubs only sending her deeper into her submissive stance to stimulate it even further.

The Siren bracelet on her wrist flared green, but Hotaru didn't care about that. Not when her body was in so much desperate need. When she was edging herself to the rhythm of words of worship that were fogging her mind and body with until nothing else remained. When the only thing left was her eager and willing surrender.

And deep down inside her, something was shifting. It wasn't just her body straining against the embrace of her slave-suit for more pleasures, nor her mind being battered and reshaped by the words spilling from her lips until no other thoughts were left but those of obedience. Hotaru's very soul was beginning to stain. The sharp edges of betrayal and weight of corruption were tainting her with their poison, and she was loving the inevitability of it. She had only had a taste of enslavement, and it had been enough for her to fall again at the first opportunity. No one could resist this pleasure, ideas of freedom or resistance being replaced by Hotaru with newer, darker desires.

The kind that once she orgasmed would transform her from a loyal friend and fighter for humanity into another cultist of Ssythrax, and that release was so tantalizingly close the slave-suited Hotaru in the mirror could only groan and smile at that future.

Hotaru's vision went white as her thigh muscles tightened, her body frozen almost in pain at the ecstasy crashing through her body, having built the waves higher and higher and now it was here. To wipe away her very existence in favor of a singular entity, in favor of slavery, in favor of the God of Darkness. All that was left was for Hotaru to submit, fully and completely, with but a single word to send her cresting into oblivion.

Yes!

The howl that escaped from her was animalistic as the first of many thunderous orgasms rocked her body, Hotaru blind to anything but the ecstatic release. Pleasure erased every thought, every idea, her very identity as she came and came and came. There was no more Hotaru, no more Sirens, no more fighting, just pulse after pulse of bliss… and Him.

It started as a warming hand palming her core and sending tendrils of corrupt, evil, and utterly ecstatic energy throughout her body. In comparison to the bright light of her Siren transformation, this was heavy and dark and utterly addictive to indulge in as it began to fill her. Pulsating purple light filled the edges of Hotaru's vision as her eyes finally cleared, her mind going slack with shock as she took in her reflection. She was still in the slave-suit, her legs still splayed wide and impossibly balanced on the insane heels, with her hands behind her head so she was exposed and on display. The previously dull symbol of Ssythrax above her womb was now glowing with purple light, growing brighter by the second as His power began to flood her system.

Oh no! No no no… Yessssss….

For a brief moment as the afterglow of her orgasm faded, Hotaru's mind briefly returned at the realization that she hadn't just been self-pleasuring herself. The act of putting on the slave-suit, of worshipping the Darkness and surrendering everything in the pursuit of orgasm had summoned him through the Void. Her twisted fantasy had become reality, and she could feel the tendrils of corruption pulsating through her body. There was enough of her left that she could still turn back, but instead Hotaru's smile only grew as she felt Ssythrax's power fill her. She had tasted only a fraction of the ecstasy the dark god had to offer, and she wanted more.

"Your will is my will." The words were thick on her tongue, no longer meaningless as she could feel the dark power listen and respond. "Your desires are my desires." Pleasure dominated her mind, flaying away at virtues she once held dear to be replaced by something greater. "I worship and obey. I serve and obey. I exist and I obey. Glory to Ssythrax! Glory to Ssythrax!"

She could feel Him coiling around her, the sensation of being embraced by the suit only enhancing the feeling of her new Master taking control. Hotaru loved her slave-suit, loved how it now glowed with His power to show the world her submission. The pulsating green of her transformation bracelet behind her head was now tinged with purple, the device that took power from his realm and gifted it to her being corrupted. Now it would serve a different purpose, the purpose it should have always had as Hotaru moaned in orgasmic bliss. She had been told that the Sirens had been chosen based on their compatibility with the power of the Void, and now she knew what that truly meant as He whispered His will into her open mind.

It meant the path she now walked was inevitable. Her resistance had been a lie. This brief moment of freedom between enslavement had been a lie. All of them had been born to be His and slowly, as she straightened and stared at the green bracelet that would have normally transformed her into the Siren of Loyalty, a new role began to blossom in her mind. Ssythrax's power was defiling the device with His energy, dark purple power infecting its green light and transforming it to fit His purpose, and if she said the words she always said, her hand hovering over the glowing light…

"Henshin!"

Like normal, green light enveloped her as the bracelet pierced the barrier between worlds and let her draw upon the power of the Void. The brilliant energy was cool and refreshing, but rather than embrace it Hotaru began to tear open the hole in the barrier wider… And then there was Him.

Another orgasm ripped through her as she floated into the air, dark and corrupting energy flooding her system. It overwhelmed the sensation of her usual transformation in an instant, twisting her body in ecstatic pain as Ssythrax took hold of her. Her scream was one of agony but also blissful surrender as Hotaru's body shifted into a form more suited to serve Him.

The purple latex of the slave-suit flared into a sickly green color as her bones were cracked and reshaped, the sensation of six large clawed hands grabbing at her thighs, waist, and breasts. Her legs grew longer, feet straining and arching into the heeled bottoms as unholy strength filled her. Her hips widened, stretched by Ssythrax's clawed grip and their width only being enhanced as the pair around her waist squeezed. Hotaru's waist shrunk, past the point that was healthy as her breasts began to inflate. The modest mounds continued to grow past the size of her head, Hotaru moaning as the sharp claws of the hands gripping them began to dig in.

His touch was flame on her body as she began to take on inhuman proportions, gaining in height until she would tower over the tallest of her peers. Hotaru's hands flexed and strained against their gloved prison, repurposing themselves to be tipped in sharp claws. The sensation of Ssythrax's claws embracing her gained weight, becoming real as they gripped her in their dark purple grasp. A line of pleasure formed along her spine as they joined to an exoskeleton, creeping up into a collar where the corrupted green diadem flared to life at the hollow of her throat. The tail of it began to curl around her body and between her spread legs.

It would have been enough for her to feel Him against her wet and swollen womanhood, to grind her clit against the solid mass that now snaked between her legs to rest right below the glowing symbol of Ssythrax. Instead Hotaru moaned in worship as His twin cocks pierced her body, her Master gifting his newest General with his presence inside of her for eternity and both her rear and her pussy gripped Him in response.

Hotaru's face began to warp, lengthening and sharpening as her nose flattened against her face, her hair erased underneath the hooded covering to let the latex touch even more of her skin. Slowly, her lips plumped up to an obscene size and were stained purple, the buzz of aphrodisia now gracing them. They parted for her tongue as it grew and stretched, gaining a level of strength and dexterity that had Hotaru hissing in delight at the new sensations her violet-dyed appendage was capable of.

The last thing that changed, His final gift, were her eyes, as she began to return to the ground and the purple and green light in the room began to fade. They were all that remained of her humanity, the small slip of her face that wasn't covered by green latex paling to a deathly pallor. Her pupils began to thin, slitting vertically as dark power began to fill them. Slowly at first, but it wasn't long before her gaze was one of vibrating purple rings, the different hues pulsating hypnotically as she settled on her feet in front of her reflection.

Hotaru was gone, both as a boring human girl and as a simple slave soldier. Ssythrax had reshaped her to fit her new purpose, her body both feminine and yet alien. Her legs were too-long and slim in their heels, her hips wide and accented by raised purple claws grasping her thighs. Her breasts as well were too large and round, overfilling the hands of Ssythrax that held them high and only emphasizing that her waist had been squeezed impossibly thin. At her crotch, the symbol blazed with corrupt power and clawed hands reached up to cup the angular face, too-plush lips pursing in delight at her reborn form.

Slave Siren Green moaned in pleasure, body pulsating with His energies and will, confined in green latex and wrapped in His embrace, the dark purple exoskeleton encasing her with pleasure as the green light of her collar radiated with matching pulses of violet. She was monstrous. She was beautiful. She was powerful, and she was completely His.

"All glory to Ssssythrax." The words sounded strange, warping with powerful Void energies and hissing out of her transformed mouth. The response was immediate, the twin cocks filling her body pulsing her with ecstasy, rewarding His newest slave for her submission to His will. Green moaned again in delight, long tongue extending out as her own hands went to her breasts, enraptured by the sensations her corrupted form could feel.

Why would anyone fight this… How could anyone fight this? Green began to giggle at the absurdity of the thought. It's because they don't know. The glee of His power coursing through her, her very soul grasping at the evil energies and luxuriating in their strength… No one could resist Him once they felt His touch, would beg for Him to corrupt and fill and reshape them. The other Generals were just weak, they were normal unlike Green and the rest of the Sirens who had a special connection to the Void and therefore Ssythrax and the source of his power. She could feel how strong she was, how much of His power she could pull on, and instinctively knew she was beyond any of his previous slaves.

Slave Siren Green knew what she had to do, the weight of His desires and her purpose straightening her even as her too plush lips formed a wide smile. She was a snake in the grass, her presence and betrayal at the moment unknown by her former teammates. Together they were still a force she had to respect, but Green knew the inner workings of the tower and the other Sirens and, with the help of Ssythrax, she could separate them. After that… it would be so easy, she laughed evilly to herself, to corrupt them.

The Sirens connection to the Void made them powerful enemies but would also be their doom, a back door she could squeeze open for her dark Master. They'd resist, uselessly, but eventually His temptations will chip away at even the strongest of their wills until they too realize the inevitable: They were born to serve. They were born to obey. They were born to be enslaved by Ssythrax.

A knock at the door interrupted Slave Siren Green's thoughts, but her enhanced senses told her who was there and she couldn't help the dark laughter from flowing as her hypnotic gaze began to glow brighter and pulsate faster. She hadn't expected to get the opportunity to use her new gifts so soon, but her long tongue licked her lips in delight as she moved towards the entryway…

* * * * *

"Hotaru?"

Ayumi opened up the door to her friend's room and was immediately overcome with a wave of dizziness. She grabbed her head, a blonde strand falling in front of her face as she closed her eyes, steading herself before finally opening them. It was strange, her mind reeling as she tried to get her bearings, no longer at the entrance of Hotaru's room but inside closer to the bed.

What? Ayumi blinked, trying and slowly ungumming her thoughts as she stood straighter. Despite her friend's insistence, she didn't feel right leaving Hotaru the way that she did, a part of her subconsciously knowing that something was still bothering her. Still, she demanded to be left alone and against the small part of her telling her otherwise, Ayumi had enough other duties to take care of that she acquiesced. Only when she had returned on her way to her own room, she had heard strange sounds coming from Hotaru's room.

They were muffled, impossible to decipher from outside and feeling like the worst friend in the world. She had knocked on Hotaru's door against her wish to be left alone and it had opened…

That strange sense of dizziness returned, forcing Ayumi to shake her head to clear it out. There had been a memory there, of the door opening and Ayumi walking inside. A memory of a gentle touch and evil eyes, concentric circles of violet color pulsating in and out until her brain was mush, of a voice both familiar and alien entering her thoughts and twisting them into a different shape…

It was gone as soon as she blinked though, leaving her empty and confused as she remembered opening the door herself now, walking inside to find Hotaru.

The shower in their shared bathroom was clearly on, and with a blush Ayumi realized she could hear her friend humming in the shower, the tune unfamiliar and strangely hypnotic. Tension eased from her shoulders as she relaxed as she nervously tucked the stray blonde hair back behind her ear, blush rising further as she realized that maybe she shouldn't be standing in her friend's room while they showered, the normally courageous leader of the Sol Sirens hoping to sneak out before she got caught.

A slip of something red distracted her, sticking out like a sore thumb on the green sheets of Hotaru's bed. Without realizing it, Ayumi had already walked over to pick it up, inspecting the garment before realizing what it was and her face now fully flushing.

The rigid corset was smooth and warm against her fingers, metal accents and hooks gold against the bright red leather that looked to be put together without any seams or laces to tighten it. Instead the constricting garment had some stretch, and although it lacked any support for the chest the dips along the hardened top would fit neatly underneath the wearer's breasts.

I want to wear it. The thought wasn't hers, but it came unbidden as Ayumi stared at the piece of lingerie. Her mind was still trying to figure out where such a thing had come from and why it was in Hotaru's room. Her friend wasn't one for flashy undergarments and Ayumi knew for a fact that she didn't own something like this before the creation of the Exclusion Zone. Except here it was in her hands, blood red fabric stiff yet supple as she touched it, and the thought of what it would feel like against her skin buzzed across her body.

Again, Ayumi's mind felt dizzy and this time as she finally came to she was stripped out of the black skirt and red sweater she had on and was standing in front of the mirror. She still had on her white cotton panties and bra but the corset was still in her hands. The image of what it would look like, that brilliant rich ruby color against her naked flesh was giving the advantage to temptation as it warred with common sense. Her simple underwear would clash with the luxurious garment and would have to be removed…

I'll just… try it on. Quickly. Hotaru always takes long showers. Flimsy rationale found, Ayumi couldn't shake the eagerness from her hands as they slipped into her panties to pull them down or unhook her bra. Her lips parted softly as she wrapped the corset around her waist. It grew tighter, more constricting with every click of a hook being put into place but her breaths were turning shallow with heat as slowly but surely, she finally clicked together the last hook underneath her bare breasts.

It was tight, forcing her posture to straighten and sending her boobs bouncing slightly before returning to the position of barely being cupped by the garment. Her pink nipples were swollen with need as Ayumi took in her body, the red of the leather stunning against her pale skin, the golden hooks glinting in the light. She had a thin waist to begin with, but now her slenderness was only emphasized, drawing attention to the curves of her waist and the size of her breasts, Ayumi's lips parted in arousal at her stunning reflection.

Sexy. She wasn't a vain girl, if anything quite the opposite, but the vision of her in the mirror was undeniable. For the first time in her life, Ayumi felt like she finally understood what everyone said about her attractiveness, about her body as she twisted this way and that. Her pale skin was flawless, her curves enviable and feminine, and her breasts were… A noise of bliss escaped her as slim fingers found the pointed peaks of them, nipples hard and eager to be toyed with. What had once been an annoyance was morphing into something else as she took in the large pale orbs held up for offering by the red corset.

She'd be irresistible if anyone saw her like this, the thought again coming from somewhere else but in her current state it circled around her mind over and over before eventually sinking into its wrinkles like water soaking a sponge. Ayumi moaned audibly as her hands began playing with her breasts fully, an idea worming its way towards her core to alight it with pleasure. She imagined what the reaction would be if she walked outside like this, right now, and knew what she'd find.

A beauty like her, dressed in nothing but a bright red corset that squeezed her body erotically would be overwhelming to the members of Siren Tower. A fantasy was starting to take shape inside Ayumi and she could feel it in every pore of her as it flooded her senses with pleasure. Visions of her going about the tower, her perfect body on display for all to ogle at and fantasize about on their own.

They wouldn't be able to take their eyes off her, the curves of her large breasts and well shaped ass replacing common sense and thought with images of her. The idea was unnatural to her normal thoughts, but instead of raising concern in her mind all it did was arouse Ayumi further. She stood even straighter, thrusting out her chest as the corset squeezed her again delightfully, its embrace only further inflaming Ayumi's desires as she undid the loose ponytail of her long blonde hair and pulled it tight and high.

She wanted it, unaware of the gaze of vibrating purple eyes watching her as Ayumi let the fantasy take hold, unaware of the changes that were forming in her own mind. Ayumi wanted attention, unconsciously luxuriated in the hidden voyeur's scrutiny as she imagined her co-workers falling under the spell of her beauty. She wanted to be the only thing on their mind. She wanted her very existence to overpower any and all thoughts until only she remained. She wanted to consume their very being until-

"Warning! All Sirens to Command HQ! Ssythraxian Energy Detected! Warning! All Sirens to Command HQ! Ssythraxian Energy Detected!"

The alarm blared to life and shocked Ayumi out of her reverie, embarrassment coming fast to replace the unusual sense of narcissistic vanity that had come up and only mostly succeeding at doing so. When you looked this good it was hard to be completely humble after all, the corset squeezing her body in response to the thought as Ayumi released a soft moan. She glanced down at her discarded clothing and undergarments, sighing in disappointment as she slowly covered herself back up with the sweater and the skirt.

It was enough to otherwise be naked underneath sans the delightful lingerie whose constant embrace was a warming presence. Her nipples still stuck out clearly against the red sweater, giving away that she wasn't wearing anything underneath and would certainly garner some attention. Still, something about her appearance wasn't satisfactory, like she wanted more…

A flash of red in the corner of her eye drew her head to Hotaru's dresser, and Ayumi made a sound of approval as she walked over to pick up the tube of lipstick. She didn't need make-up to look good, but something about the dark, rich ruby staining her lips filled her with pleasure as she applied it. Ayumi pursed and popped her lips, delighting in the slash of blood red her lips were now colored. Much like the visible shape of her nipples against the sweater, the lipstick would draw the attention of her peers to her sensuality, giving the mirror a provocative pout that sent a thrill of dark delight through her.

Satisfied at her reflection, Ayumi sighed in annoyance at the alarm continuing to blare as she popped the cap on the make-up and returned it to the dresser. For some reason, she stopped in front of the mirror again, all the more aware of the confident and tempting way she was presenting herself. It was still an unfamiliar emotion to her, no matter how intoxicating.

"I'll worry about it later." She nodded to herself, leaving her body to enjoy the sensation of the corset squeezing her while her mind wandered towards what new threat could possibly have emerged. As she hustled down the hallway, the idea that anything was different, that the slightest flare of her skirt would reveal that Ayumi wasn't wearing underwear melted away. She looked good, she felt good, and even though the part of her that desired to share that knowledge with everyone seemed to be twisting into something darker and more possessive, the taste of it was too delicious to give more than a passing thought.

Second thoughts and concerns faded as she walked, Ayumi unaware of the slight flare of her transformation bracelet, a strand of purple light escaping with the usual red for just a moment. Unaware of the echo of evil laughter emanating from Hotaru's room as Slave Siren Green, now sitting on the bed smiling at the display her friend had just put on. If that had been the reaction of the strongest of them to the barest of her Master’s influence… Green sighed in delight, stretching her beautiful alien form tall as she began to gather dark power.

All shall serve. All shall obey. Ssythrax is Truth. Ssythrax is All. Victory was certain, the enslaved woman cooing in pleasure as she vanished in a flare of evil light, the Slave Siren of Betrayal’s mind already turning towards the next stage of His plan…