What if the Primarchs were Women?

It is the 31st millennium and humanity is at the precipice of reclaiming the galaxy for itself once more after 5,000 years of ruin and discord. The Empress of Mankind leads her mighty Imperium, the greatest human empire that has ever or will ever exist, on a Great Crusade. Across the stars, her legions of devout soldiers and followers have claimed planet after planet in her name. Her efforts are spearheaded by the immortal Astartes, the fearless Space Marine legions and each legion is led by its Primarch, one of the Empress's 18 perfect demigod clone-daughters. With each victory, the Imperium expands ever forward and drives back the foul xenos that have plagued humanity for millennia. But it is not just the aliens that the Imperium has driven back. After millions of years on the outskirts, the deathless denizens of the hellish alter-reality known as the Warp were finally given a chance to claim the Materium for their Dark Masters and now their divine rule is being threatened once again. The Gods of Chaos, the Ruinous Powers and their Daemonic hordes now plot to stop the Empress before her Imperium denies them what is rightfully theirs: the very cosmos themselves. All of the Ruinous Powers are now united under Chaos Undivided and will see the Empress's vision of humanity supreme crumble under her feet.

All, that is, save one.

Slaanesh, She-Who-Thirsts, the Dark Prince, and Chaos God of Excess and Perfection was not happy. In fact, she was very, very far from happy. She was outright pissed. Why, you might ask? Well, it was simple. Her STUPID older brothers refused to let her in on the fun of planning the downfall of humanity! HER! She was the one who destroyed the Aeldari Pantheon, the same pantheon that had her brothers sucking their thumbs for 65 million years. When she was just a newborn too!

Khorne, that uncultured meathead, said she was unfit for glorious battle. Yeah right, he was still just salty because she was the one who killed Khaine and not him. You had eons to have a go at him, you uninspired thug! It was hardly her fault Khorne waited until things had gone tits up that he made his move.

Tzeentch, the slimy dwarf, said she was too easily distracted for long-term planning. Well excuse her for wanting to live in the moment! It was better than getting lost in some labyrinthian wonderland of red tape and schemes piling on schemes.

And Nurgle, Nurgle! He was the WORST! The grody old crow told her to wait until she was older. Old? Old? She'll never be old and gross like you, Old Man. The oldest she would allow herself to be was peak MILF/DILF territory, thank you very much. Slaanesh knew that Nurgle knew that she knew the real reason he didn't want her involved was because he was afraid that she'd take Isha away from him. Slaanesh deserved the Eldar goddess way more than Nurgle did! His ancient tongue couldn't properly savor the nature goddess the same way Slaanesh's refined palate could. Sigh, she really should have taken her time with the rest of the pantheon, but being born made her just so hungry! Now Khaine's basically a blood-dripping mosaic, she didn't know where the Hell the Clown was, and Isha's perfect ripeness was being wasted on a God who hadn't seen his feet in 100 million years.

Within the refracted and geometric perfection that was her Palace of Pleasure, the God(ess) stewed and seethed with poise, grace and unfathomable fury. Finally, she took a deep (if unnecessary) breath, exhaling a seductive perfume from her pillowy lips. Parking her perfectly plush pink rear on her extravagant throne, Slaanesh smirked to herself as a deliciously devious thought came to her.

"Fine," she muttered, her voice a melodic sonnet. "If my brothers don't want me to play the game with them, I'll just flip the board from right under their noses."

And she knew just who would help her.

Baren, Daemon Prince of her most perfected being, flew as fast as his great wings could carry him to Slaanesh's opulent throne room. Her most desirableness was never to be kept waiting after all. Within the cavernous chamber, sat the mountainous form of Slaanesh and even Baren could not help but leer at her flawless form. Not that the Prince minded of course, arching her back so that her servant might better gaze at her moon-sized bosom.

After a few more moments of appreciative eyeing, Baren bowed low to his liege, his bison-like horns nearly brushing against the spotless diamond floor. "You have summoned me, my perfection?" he asked, voice low and smoky.

The Goddess smiled, a smile that had turned countless lesser beings to stone. "Yes, my sweet pet." She simpered. With a curling finger, she gestured for him to draw closer. As Baren neared the throne, he was startled as both it and Slaanesh herself shrunk down. Now slightly shorter than her towering servant, the Goddess playfully bumped her wide hips into Baren, knocking him onto her own throne. Before he could recover, she bounced her ass onto his lap, using the dragon-like daemon as her seat. Instinctively, his arms wrapped possessively around her waist, pulling his lord against his broad chest. Slaanesh didn't mind, and even leaned back into her subject's muscular form, her perfumed pink locks tickling his nose as she did.

"What troubles you, my master?" Baren asked, thoughts heady from Slaanesh's incomprehensible scent.

"Mmm, my stupid big brothers won't let me play their game," She whined, gazing up at her pet. Fluttering her six amethyst eyes at the daemon, she continued. "Won't you help me ruin their precious schemes, Baren?"

The daemon nodded instantly. "Of course, you're flawlessness. What ever you desire, I will do everything in my power to make come true."

Slaanesh grinned, flashing rows of pearly white needle-like teeth. "Goody, because I want you to corrupt a few of their toys." Waving a lithe arm, the goddess summoned a visage of the Empress's 18 clone daughters. She shivered in ecstasy as her servant let out a bestial purr at the sight, his eyes hungrily devouring every inch of the Primarchs' voluptuous Amazonian physiques. Not even their elaborate power armor could hide the curves of their hips and breasts from the daemon's lusty gaze. "You remember Revelation, don't you, Baren?"

The daemon licked his lips with a forked tongue. "How could I forget?" He asked. "She was a delight."

"Good to know, because these lovely young women are her daughters, all of them warlords and generals, all doing their best to make mommy proud with hardly a moment for themselves." Grasping her servant's chin, she directed his gaze back to her. "Baren, my pet, won't you do the gentlemanly thing and show these poor overworked girls a good time." Pouting her oh-so kissable lips, Slaanesh added, practically purring. "No play and all work will make them very dull and what a waste of pleasure that will be."

Baren smiled at his master. "Of course, my liege. Your will shall be done."

"Good," Slaanesh said, grinding her big behind into Baren's lap. As one his hands drew close to one of her fat perky tits, she seized him by the wrist. "Because I would just be so disappointed if you failed." Glaring sharply at her pet, Slaanesh's grip worked some unknowable magic and the muscled and scaled hand slowly reverted to its once mortal form. "And you know what happens when I'm disappointed. Don't you, Baren?"

Baren nodded rapidly, watching in terror as his arm slowly withered into unfeeling stone. "Y-yes, of course, most perfect one, I understand entirely."

The Chaos princess glared at him a few moments more, before finally dropping his arm. "Good," she said perkily, standing up from her lap-seat. Pulling her servant up off her throne, she playfully smacked him on the back with a dazzling smile. "Now go and show those princesses a good time."

With a wave of her hand, Slaanesh tore open a portal through the thin membrane that separated the Warp from Real-Space, one that led directly to the underbelly of the Alpha, the flagship of Primarch Alphara Omega's Alpha Legion. Already, Baren could see the voluptuous Primarch disrobing, revealing her flawless skin and fantastic curves. Unfurling his great wings, Baren flew into the portal and after his first delectable target, the tear snapping closed behind him as he did.

Stripping herself of her ornate and scaled armor, the Primarch Alphara stepped into the shower pod. As the hot water cascaded down her naked, creamy flesh, she sighed. Her sisters and her maybe physically incapable of being exhausted, but that didn't mean they couldn't feel absolutely drained after a long campaign. Lathering the soap, she washed away the dirt, sweat and blood that managed to get through the microscopic seams in her armor. Alphara closed her eyes and let herself become numb to the world for a brief moment. This respite might be unbecoming of a Primarch, but that didn't mean she couldn't enjoy it.

Behind the steamed-up glass of the shower tower, a figure silently stalked closer to the unaware demigoddess. With unnatural stealth, the door was slowly and silently opened, and the figure stepped inside the shower with Alphara. Still oblivious to the fact that she was no longer alone, Alphara let the water wash away the soap as the figure behind her raised its arms…

"Gah!"

Alphara's eyes shot open as her heavy breasts were seized from behind by a strong grip. Squealing as her big titties were squeezed, Alphara just barely breaking out of her attacker's pawing grip, and the livid Primarch spun around and faced her own face grinning back at her.

"Alphara!" She hissed, covering up her soapy chest as her doppelganger howled with laughter. Taking the bar of soap, the Primarch threw it at the look-a-like's head. "That's. Not. Funny!"

Doubling over, the other Alphara easily dodged the soapy projectile, still snickering. "I-I'm sorry," she gasped for breath, grinning from ear to ear. Standing back up, she playfully shoved the old Alphara. "But you have to admit, it was a little funny, Omega." Indeed, what most of the Imperium – including their own sister Primarchs – was unaware of, was that Alphara Omega, Primarch of the Alpha Legion was not one single person, but rather a pair of Primarch twins: Alphara and Omega.

"I am not in the mood, Alphara." The now identified Omega growled at her sister. She lowered her hands from her bust with a huff as Alphara grabbed the soap. Wrapping her arms around her twin from behind, Alphara pressed her lips to Omega's ear.

"Aw, but don't you want me to get all those hard-to-reach places?" She cooed.

Blushing from her sister's teasing, Omega shoved Alphara away. "Shouldn't you be bathing in the communal showers with our daughters? Being up here risks blowing your identity."

Lathering herself with the soap, Alphara rolled her eyes at her sister. "Oh, little sister, I've been playing this game longer than there's been a crusade. Believe me, no one will notice if I don't want them to."

"That still doesn't explain why you're here?" Omega pointed out; hands parked on her svelte hips.

Alphara shrugged. "I needed a nice, hot, personal shower after being in the trenches all day and watching the Iron Warriors make a mess of things."

"At least you didn't have to put up with Petra's whining." Omega muttered. "What was Isis thinking, assigning us to help her campaign?" Their sister, Petra, was the Primarch of the Iron Warriors legion. Like the nearly all the rest of their sisters, Petra looked down at Alphara and Omega's underhanded tactics as being dishonorable. Unlike the rest of their sisters, Petra didn't have much room to talk as her tactics let what should be quick, clean campaigns drag out into messy, multi-month-long trench warfare.

"Perhaps she wanted the objective done without losing 40% of our forces," Alphara suggested, rinsing soap off her luscious legs. "But come morning, we'll have to switch, and Petra becomes my problem again." Smirking as she rubbed soap on her prominent breasts, Alphara swiftly tweaked her own nipples. Omega instantly gasped and covered her own chest.

"Stop that," she hissed. Alphara only grinned slyly and immediately flicked her clit. Omega let out a soft moan, pressing her hands against her crotch. "Al-Alphara, I mean it."

"Mmm, but you make such cute noises, Omega."

It was not only Alphara and Omega's faces that were identical. From birth, the two shared a close connection that linked them in spirit and body. It was to the point that instead of saying they were two Primarchs, it was more accurate to say that they were one Primarch split in two bodies. Grinning at her sister, Alphara begin vigorously rubbing her pussy, moaning as Omega nearly doubled over in pleasure. Stumbling forward, Omega grabbed her twin's shoulders to steady herself, moaning and whining as Alphara ruthlessly stared her down.

"Alp-Alphara, p-please-"

"Hmm? Please, please what, little sister?" Alphara taunted, now toying with her e-cup tits as she rubbed her pussy. "Please let you cum your brains out?" Snaking her arm out, Alphara seized Omega by her fat ass and dragged her closer. Their massive, shiny tits rubbing against each other, and their lips centimeters were apart.

"I…I…" Omega gasped, her pillowy lips shining and eyes wide. She could feel her orgasm coming closer. So close, so close, so close…

Then it stopped.

In an instant, Alphara let go of her tit and pussy and Omega was left stunned as her orgasm was denied. Pushing Omega away, Alphara strutted out of the shower pod, her wide hips swinging. Glancing over her shoulder at her still-frozen twin sister, she called out. "Come one, Omega, we have to go to bed."

Silently, Omega obeyed and followed her sister to their shared quarters, her eyes locked on Alphara's bouncing ass.

Still smirking to herself, Alphara bent over the bed with an exaggerated pose that made her already fat ass stand out even further. Maybe she'll be nice tomorrow and let poor Omega cu-

SMACK!

Alphara shot straight up with a moan, her big rear stinging from the painful spank. Spinning on her heel, Alphara glared at a stunned Omega rubbing her own large behind. Rolling her eyes, Alphara said, "Alright Omega, we've had our fun, but now it's time for bed."

But Omega only shook her head. "That wasn't me!" She protested.

Crossing her arms, Alphara glared at her sister. Uh huh, well if it wasn't you, then who could it be? I didn't do it and there's no one else he-AH!"

SMACK!

Once again, a meaty spank shot out through the room, leaving both Primarchs' asses red and bouncing. Except, Alphara had been looking directly at Omega and at no point had her sister raised her hand.

"Mmm, twins and you share a bed? Oh, I'm going to have fun with you two." A voice, a man's voice, low and smoky, rang out from seemingly nowhere.

"Who on Terra said that?" Omega demanded, reaching for her Pale Spear. Before she could grab it, an invisible hand seized her by her big ass just as Alphara had done earlier and pulled her away. An unseen force dragged her forward until she was pressed up against something she couldn't see, but felt hard and leathery. Across from her Omega saw that Alphara was in a similar position, and she was startled to an imprint on her sister's ass that resembled a large six-fingered hand.

Struggling against the unseen force, Alphara called out in fury. "Where are you? What the hell are y-guh!" The twin Primarchs both groaned as a large, clawed finger dug into their sensitive pussies and aggressively toyed with them.

The same voice from before chuckled. "Why, I'm right here." From seemingly thin air, a humanoid form appeared, taking the shape of tall and muscular man with light purple scaly skin. Neither sister could deny that the man was incredibly handsome, but his features were warped with dark onyx-colored eyes, a pair of long, bull-like horns growing from his head, a large pair of leathery, bat-like wings sprouting from his upper back and a long, serpentine tail that ended in the shape of a spade.

"As for who I am, well," he continued, even as Alphara and Omega shivered and shook from his rough treatment of their sensitive pussies. "I am called Baren, but you two can call me Master, Sir, or…" Grabbing their asses roughly, he shoved them towards the bed and licked his lips with a long, forked tongue as their naked bodies collapsed onto it with an enticing jiggle. "Daddy," he finished, hungrily eyeing the twin sisters. Their bodies were leaner than their sisters, not exactly scrawny, but svelte.

Omega was the first to recover. Leaping off the bed, she grabbed her spear and charged the Daemon. Before she even got close though, her discarded boots and gauntlets flew from the ground and clamped themselves onto her hands and feet. With a wave of his hand, Baren launched Omega back onto the bed and though she struggled and cursed, the weight of her armor had seemingly increased exponentially, to the point that not even she could lift her arms or legs.

"None of that now, you'll have to wait your turn, Omega," he chastised. Turning towards Alphara, Baren was nearly decapitated as the enraged Primarch swung her chainsword Storm's Teeth at the Daemon's head, only for him to just barely dodge out of the way. Alphara continued swinging her sword, but each time Baren artfully dodged. "Really now, aren't we passed this, Alphara?" He asked as her latest swing left her stumbling past him, giving him the opportunity to smack her pussy with the tip of his tail.

""Gah!"" Both Alphara and Omega gasped, shivering in unwanted pleasure. Baren grinned and struck. With his hands darting forward, he seized Alphara's busty chest by her nipples and twisted. "Oh," she groaned, while on the bed, Omega hissed, straining against her makeshift shackles. Pulling her tight against his chest, Baren pressed his lips against her ear.

"You really should stop, you know," His tongue slithered out and took a long lick of Alphara's sweating face. "I promise that it'll feel much sweeter when you do."

Alphara panted, shivering as her back was pressed flushed against the Daemon's broad, muscular chest. "N-never," she gasped as he eagerly toyed with her massive tits.

"Oh, but never's such a long time," Baren whispered. Spinning Alphara around until she was facing him, the Daemon grinned ferally into her wide eyes. "Let's see if I can't speed up the process?" Opening his mouth wide, a thick red mist seeped out of his razor-toothed jaws and into Alphara's nose. Instantly, a boiling heat poured into her belly and between her thighs as her heart began to race. On the bed, poor, trapped Omega could only writhe and whimper as that same unbearable heat flooded her body. 

Pushing Alphara away, Baren watched in smug satisfaction as she feebly tried to raise her sword. In the end, it pitifully fell to the floor and Alphara followed soon after as her wobbly legs gave way. Staring up at the Daemon as approached, Alphara whined as he undid the belt holding up his hide trousers and gasped as his massive cock was revealed to her.

"T-T-Terra," Alphara whimpered as Baren grabbed her by her white side-cut hair, his 18inch cock slowly drawing closer to her tight little mouth. Th-this couldn't be happening. It wasn't happening! She was Alphara, one of the Primarchs, a daughter of the Empress of Mankind! S-she wasn't some hive city whore who got on her knees for big, nasty cocks. She wasn't! She-she needed to think! Needed to concentrate! There had to be something, some other angle she could approach from! There had to be!

"No," she pleaded, shaking her head desperately as that big cock drew near. "No, no, no, no, no no, GAGKH!!"

It was too late. Baren slid his big daemon cock into Alphara's hot little mouth with a satisfied groan. He slowly pulled her head back before ramming his cock even further down her gullet. On the bed, Omega continued to moan and hiss, her mouth forced open by her connection to her twin. She could feel and taste everything Alphara could. Ohhh, oh Terra, why did he have to taste so good? Tongue lolling out, her armored hands gripped the bed sheets and her neck pantomimed being forced forward and back.

"Gagkh. Gagkh. Gagkh. Gagkh."

Meanwhile, poor helpless Alphara was trapped between Heaven and Hell. Her wet hot mouth was being used to pleasure this monster's nasty dick, her neck bulging obscenely whenever he took her all the way down to the base, which was quiet often. All the while, her poor, vulnerable cunny was being constantly teased and tormented by his tail, it's spade tip flicking and toying with her sensitive clit. Above her, Baren threw his head back and groaned as he got closer. Mmm, this little slut had such a nice mouth. He couldn't wait to see how the rest of her sisters compared.

His thrusts grew faster and faster and even with as little personal experience as Alphara new what was about to happen. Weakly, she slapped at his thrusting hips. Her strength, the kind that could break boulders and shatter ceramite, had fled her completely as soon as she breathed in that intoxicating mist. "Oh…oh, yesss!" Baren hissed as at last, his hot, sticky cum flooded Alphara's awaiting mouth. She squealed and whimpered as her mouth was overrun with the daemon's nasty, tasty semen. At the same time, his tail practically pierced her wet pussy, causing Alphara and Omega alike to completely wail in orgasmic despair.

Baren slowly pulled his still-hard cock from Alphara's overwhelmed mouth, unswallowed remnants of his seed, spilling down her chin and onto her heaving e-cup rack. She looked up at her conqueror with shimmering green doe eyes. Baren grinned maliciously and yanked Alphara onto her feet by her hair. Dragging her over to the bed, he threw Alphara's body on top of her still-restrained sister. Omega looked alarmed at her sister's ahegaod face, as Baren spread her legs apart, leaving her poor pussy quivering before his giant cock.

"Alphara! Sister! Sister! Don't let him do this to us! You have to resist!" She pleaded. Alphara merely groaned. Looming over her, Baren chuckled. Raising his massive hand, he brutally brought it down onto Alphara's fat ass, causing her to cry out as her rear jiggled.

"Don't worry about Alphara, Omega," he said, grabbing the twin by her wide hips. "You girls like to play infiltrator, don't you? Well, I'm just teaching you both about the honey trap." Pressing the tip of his throbbing cock against Alphara's cunny, Baren purred. "Mmm, and her honey looks oh so SWEET!" At the word 'sweet', Baren rammed his massive cock balls deep in Alphara's tight pussy.

""GAAHH!!!"" Alphara and Omega both cried out as the shared feeling of a massive cock splitting them open overwhelmed their senses. Grabbing Alphara by her hair, Baren forced Omega to look at her sister's blissed out face as his hips repeatedly slapped against her big Primarch ass.

"Ah! Ah! Ah! Ohhh TERRAAA!!!" Alphara moaned, unable to restrain herself as the Daemon had his way with her. Omega watched in horrified awe before she realized something. Baren was so focused on…on… on plowing her sister, that he let his focus on restraining her slip. Slipping free of her gauntlets, Omega rolled out from under her sister's rocking body. In her panicked state, she made no attempt to grab a weapon and simply crawled behind Baren.

"G-g-get off her. Get off her, you filthy monster!"

Flinging her arms around his broad shoulders, she pressed her busty body against his back, desperately trying to pull him off her moaning sister. It was no use though; this lusty monster had left them both soooo weak. All Omega could do was weakly tug at him and pathetically beg him to leave her poor sister alone. To anyone looking in from the outside, it would've looked like she was egging him on, pressing her big titties against his back and massaging his muscular body as he ravaged her sister.

"Please," she begged into his ear. "Please, please don't. Just leave me and my sister alone. Please!"

Baren just ignored her, too focused on completely wrecking Alphara's pussy to care about what Omega had to say. His tail, on the other hand, was more than capable of tending to what he thought Omega wanted. With inhuman precision, the spade tip pressed against Omega's weeping cunny. Eyes widening, Omega moaned in despair as that nasty tail tormented her. This combined with the horrible pleasure from their bond, was the final nail in the coffin for Alphara Omega.

""Ooohhh….Oh-Oh-OH TERRAAA!"" They wailed as their poor pussies exploded in synchronized orgasmic pleasure. Omega collapsed against Baren's muscular back as Alphara's eyes rolled back into her head. With a triumphant roar, Baren absolutely flooded Alphara's pussy with his nasty daemon cum. The sheer onslaught of sticky white semen seeped out of Alphara, covering the bed in the scent of Baren's delicious musk. Throwing Omega on top of her dazed sister, Baren seized his massive cock and furiously jerked it over their curvy bodies. The sisters whimpered and gripped each other as that daemon cock burst out one last massive well of nasty white cum all over them as they finally passed out from pleasure.

Baren panted, standing triumphant over his latest conquests. Beneath his burning gaze, the symbol of Slaanesh appeared on Alphara and Omega's bodies, each wearing the sigil on one of their pendulous breasts. He grinned viciously as the Hydra of the Alpha Legion appeared on each of his wrists, cementing his claim of them both. One – well, two actually – down, 17 more to go. One by one, each of the Empress of Mankind's slutty daughters would break and be loyal vassals of the Dark Prince. He would make sure of it.