(Warhammer 40,000 TF, Various TF)

Based on a story by @FudgeFiend , check them out!

The mission to retrieve the bones of Saint Kaltauk was destined for failure. The Astra Militarum declared it a tactical folly. The Adeptus Mechanicus flat-out denied the possibility. Even the venerable Adeptus Astartes of the Iron Hands chapter had deemed there no viable material benefit to their retrieval.

For the Adeptus Sororitas; however, there was no reason ‘tactics’ could ever overcome the need for faith. The Order of the Sacred Rose dispatched a full convent to their retrieval, heedless of their comrades’ warnings.

Two hundred courageous souls had invaded a so-called daemon-world, all thanks to the help of the courageous Rogue Trader Atzoc. His name would forever be remembered, a tragic necessity as the voyage had claimed his life, as well as a hundred and ninety-six of the Sisters who he had ferried.

Three of the four survivors recovered in the ship’s training grounds, celebrating a victory with sweat and grunts of exertion. They were Celestians, the finest of the Sisters of Battle, and their journey through the daemon-world had rendered their souls invincible to all corruption.

It was almost a shame that this protection had not been extended to their Canoness Annabelle – and a greater shame that none of the three were even aware that she had vanished.

So the three continued to train. Sera wore her full ceramite plate armor, flawlessly executing a flurry of blows against the room’s combat servitor. The clamor of her blade against the servitor’s mechanical flesh served as music to Laila and Grace. The two sparred unarmed, Laila in her bodyglove and Grace in the loose-fitting robe of her homeworld.

Laila smirked as her foot caught the flowing garb, setting Grace off-balance. Ever the hothead, Laila couldn’t resist throwing a barb her comrade’s way. After all, this wasn’t their first bout where she’d managed to use Grace’s robes against her. “How many times-”

That was all the words she could utter before Grace’s elbow met her gut, driving the wind from her lungs. The stumble had been a feint, and Grace had used her robes to hide her shift in stance to an attack. “At least once too many, clearly,” said Grace with a smirk.

Laila sputtered indignantly, though her wheezing soon turned to laughter. “Fair… Enough,” she managed, coughing.

Concern flitted across Grace’s features, a small frown marring her expression. “Was that too hard? You’re more winded than when that Bloodcrusher trampled you.”

“That was when I was adorned in my sacred armor,” chided Laila, waving off the woman’s concern.

“Ah,” Grace smiled, “then perhaps I need give you time to arm yourself? Then it might be an even match. What do you think, Sera?”

A ripple flickered through reality, the exact kind of disturbance that typically accompanied a failure of the ship’s protective Gellar fields.

A ripple flickered through reality, the exact kind of disturbance that typically accompanied a failure of the ship’s protective Gellar fields.

Laila clicked her tongue, measuring how long it would take to travel from the training room to her quarters. Too long, by her estimates. Though with Sera’s aid, perhaps…

The unmistakable clatter of a fallen weapon told her that no aid would come from her sister’s direction. Laila dreaded that sound, she’d heard it too often across thirty years of war. But these decades of experience couldn’t prepare her for what would come next.

Neither would Grace’s time spent poring over pages of sacred texts. The slender woman’s mind raced at the sight of Sera growing… hairier.

It was like watching a wave of fur erode a sand sculpture of a woman. As the fur swept across her form, her head seemed to shrink within her armor. Her legs seemed to go limp beneath her, but as Sera fell to the floor, it was clear that her muscled form was no longer a fit for her own plate.

The woman’s gloved hands spasmed as though she was being electrocuted, all before they too fell to the ground empty. Laila and Grace caught sight of smooth, dexterous fingers growing thick and coarse with pink-skinned hide.

To her credit, Sera did not once panic. If anything, she looked outraged that this de-evolution was a foe she couldn’t properly fight. Her nose flattened slightly on her face, ears growing rounder. She squirmed within her oversized plate, snarling. Her mouth opened, revealing sharpened teeth and a flatter tongue.

“OOH-OOK AHH!”

Grace recognized a simian’s cry, just as she recognized a chimp’s features. But she couldn’t reconcile that with any sensible explanation.

Sera, on the other hand, had no knowledge of chimpanzees. She knew of all manner of xenos creatures that deserved an expedient death, but knew nothing of benign Terran creatures. Though… Even if she had, that wouldn’t have let her think for much longer.

Her skull shrank around her brain, its smooth shell flattening away her thoughts. Her next cry ended with a guttural choke, her eyes crossing and more than a little spittle accompanying her tongue past her lips. Ironically, said lips were still adorned with her black lipstick, like a cruel mockery of a woman.

“Guh-ook?” Sera babbled idiotically, looking to strangers that she knew she should have recognized. She squirmed within the strange warm-cold thing that was trapping her, freeing herself and her dexterous tail after only a few seconds of effort.

Before the two sisters could fully come to terms with what was happening, another ripple passed through the air. It was as though reality had become fluid, and a stone had been dropped into destiny. 

“Sera? Throne help me, she’s turned into some sort of… Of…” Laila’s mind raced, but she found her thoughts slipping around the word.

“Ape?” Grace desperately tried to think of a way to protect herself and Lailah. Tragically, she was far too late for that.

“Ah, thanks you! Sorry, I must forgot the word,” Laila hummed, a musical accent slipping into her tone. Her dark eyes lightened to a rose red and a cerulean hue crept across her skin. She didn’t seem to notice these, or even her own nose flattening down into her face. Her skin smoothed until she sported a vertical slit between her eyes.

“Sister Laila?” Grace hated that she had to ask. She already had an idea was happening, but it was an atrocity. Her cocksure friend was looking more and more like a foul alien Tau by the second.

Though… No Tau sported such a voluptuous figure. Battle-hardened muscle was softening along the woman’s body, and in its place her breasts and hindquarters swelled. Her bodyglove, able to withstand most blades, was no match for the overwhelming titflesh and assfat.

“Hm?” Laila’s hum was echoed by the sound of tearing cloth, her décolletage bursting free of its cruel confines. “Why you look at me like that?”

Laila licked her lips. They tasted… Minty. That was weird. Or was it? After all, humans seemed to truly love the feel of her tingling saliva on their wonderful bodies. She loved servicing them… Right?

A flicker of reason reentered her mind, but it was just for a moment. After all, faith was no match for destiny. Nonetheless, Laila could tell that her combat experience was transforming into experience dueling beneath bedsheets.

… Well. ‘Dueling’ might be a strong word. After all, a Tau diploslut like Rai’la was far too submissive to put up anything like a fight. “And… Why Rai’la worry about ape when strong Imperium right here?”

Grace had never felt so helpless. She’d survived a catastrophic invasion of a daemon-world, and for what? A cruel fate that she couldn’t evade?

“Throne damn it!” She spat, the taste of copper filling her mouth. A sharp pain split her tongue, and she could feel it twitching like two snakes against her gums. “Nmgh… Why did that hurt to say…”

Her eyes widened. “No, not me too!” She blinked rapidly as her eyes burned, but without a mirror couldn’t see her sclera darkening to a daemonic midnight black. Her skin burned, though it was like the heat was coming from within her own body. And with the heat came an… Emptiness.

It was a feeling that Grace had never experienced in her life. It was hunger, but not for food. She began to sweat, the thin droplets staining her skin a mottled pink-purple. Her soft toga made her tingle from head to toe.

“Emper-achgk!” Again, pain. “Warp take it!”

Warp. The hell that daemons were spawned from, the immaterium ships had to hazard crossing, an anathema to humankind. And yet… The word was so enticing. “Or… Perhaps, warp take me…”

Grace could hear the words she was saying, but she refused to accept them. She was a pious Sister of Battle. She was not some sex-starved cultist! S-sex-starved? Where had that come from? The only slut here was that blue-skinned T’au.

“Ohh, Rai’la never seen such human before…” Rai’la tilted her head, smiling dopily as the human’s hands twisted. Fingers clumped together into pincers not unlike some of the ocean life on her homeworld. Idly, Rai’la wondered what they might feel like.

“Don’t lump me in with common mortals, fishface.” Grace snarled, pushing her shoulders forward to squeeze her soft breasts together. The skin between them merged, until they were just a single, heavy tit. It felt amazing, like finally cracking a stubborn joint.

“Do not me mean to-mmph!” Rai’la’s protest was cut off by lips against her own, a forked tongue slipping down her throat, violating her esophagus. It was slimy and warm and absolutely amazing. Her eyes rolled and she let out a dimwitted moan.

Grace felt her head pull back, shuddering internally at how long it took her tongue to slither up from the alien’s neck. She was supposed to purge xenos, not kiss them! She was a champion of humanity! Even if her body had disavowed her own kind…

“You like that, pet?” Grace’s voice now bore a sultry huskiness, and wisps of purple smoke curled past her lips with every word.

“Ky’love you all kai’rota…” Rai’la babbled hornily. At this point, she’d say nearly anything to press her blue curves against that sensuous figure, to be lashed by its words and claws, to give everything of herself to it…

Sin could feel the Tau’s mind break, just as Grace could feel Sin sliding across her fading psyche like the moon blotting out the sun. The new mind was… Horrifying. It dripped with malice and contempt and lust, so much lust.

Pleasurable lust, blissful lust, toe-curling lust. Grace felt herself slip beneath the surface of her conscious, and even her subconscious. It was like she was being dipped into a vat of the most potent aphrodisiac she could conceive of.

What human mind could possibly prevail?

Sin licked her lips as the annoying nagging voice slipped from the recesses of her mind. Finally, she would be able to free herself of the rest of this wretched form. With the help of the drooling blue imbecile, of course.

“Ha! A pathetic morsel, but you shall sate She Who Thirsts until my next meal.” Sin curled her toes, letting her feet twist and reshape to match her dark God/esses’s bidding. Her toes twisted into talons, a nightshade hue creeping its way across her purplish skin.

Twin horns burst from her skull, forceful enough to bring with them a trickle of her black blood. Its heat was a tantalizing sensation, a sexual drug that threatened her mind with a great time. She cackled, letting the robe on her body fall so that the bimbo T’au could feast her eyes on Sin’s glorious flesh.

“Thirsty? Rai’la help!” Rai’la eagerly sucked in a deep breath of air, bulging her throat like an amphibian. She closed her eyes to focus on some of the muscles that made Tau diplosluts such renowned courtesans. Then she stretched out her tongue, feeling the muscle grow in her throat, sliding up her neck until its tip pressed against her lips.

Sin arched an eyebrow as the alien’s tongue slopped free of her mouth, accompanied by a veritable waterfall of thick drool. This ‘Rai-lah’ didn’t even seem to care that her thick tongue wetly splatted between her enormous breasts.

“… Fascinating.”

“Funny, even!” A new voice chirped. Irritatingly, it possessed the same idiotic glee as the T’au.

Sin turned, finding a human with pink-and-blue hair and utterly garish taste in clothing. It was almost like the clothing of… No. Sin’s eyes narrowed as she recognized the patterning of the Aeldari jester-god. While most of the knife-ears were fun sport, these creatures were an abominable threat to her kind.

Anna giggled at the mean look on the daemy’s face. Then she turned her gaze to the babbling chimp and the idiot bimbo blueskin. The clown-girl wobbled her fat tits to really show how great this was. “Oh, you all turned out so great! Master’s totes gonna adore you!”

That was as much recognition as she was granted. There might have been some tiny, tiny part of her mind that was still the Canoness Annabelle. This part of her brain might have recognized her sworn sisters had been changed just as she had, and might have despaired. But all of that would only have happened if it was funny. And as far as Anna was concerned, the only funny thing was how funny her next funny performance would be.

Anna flicked her wrist, too fast for even the daemonette to react. A cloud of confetti burst into the air, accompanied by three small triangular prisms. Master Re’larii said they were something called ‘tesseract labyrinths,’ but that was way too many silly-bulls for her clown brain to comprethingy.

Instead, she just called them ‘mean-shaped suck-sucks’ and suck they did. Each of the small trinkets opened a small hole in reality, absorbing a different girl in its confines, catching them perfectly until Master Re’larii would call upon them again. 

Anna clapped her gloved hands delightedly. “This really is so much fun! I can’t wait to see what’s next!”