As Vivienne fled the bedchamber in a panic, Seraphine sank back into the pillows, staring up at the ceiling with an inferno still burning in her veins. Her hands wandered aimlessly over her heated, sweat-slicked body. The memories of the past night slammed into her with a redoubled force.
This had been her very first time operating as a futa - and it had proved to be an absolutely mind-shattering experience. The sensation of deep, sensual penetration, the tight, scalding grip of a woman's interior, and the wave of pulsing strength radiating straight from her lower belly right up to her skull... it was something utterly unimaginable.
Though she had been somewhat clumsy at first, still learning the mechanics of a newly acquired member and the proper rhythm of her hips, her futa stamina had left her in a state of pure awe. She had climaxed six separate times - in massive, explosive waves that caused her entire body to shudder - and yet she still felt as though she could take that girl endlessly.
Lying in the rumpled bedding, her analytical mind involuntarily began breaking the phenomenon down into its base components.
Now I finally understand... she thought in mute astonishment. She finally grasped why men in her former world could completely lose their minds and obsessively crave sex.
The male orgasm and biological drive in this futa body were fundamentally different from her former female experiences - they were aggressive, primitive, demanding immediate fulfillment, and releasing a massive rush of pure triumph.
Furthermore, analyzing the physiology of her new body, she recalled childhood memories belonging to Seraphine Karsfeld. Despite possessing female organs alongside male ones, this body had never once experienced a menstrual cycle.
The futa reproductive system was geared strictly toward impregnation, which meant one absolute reality: two futa mathematically could not sire offspring together.
Suddenly, as the image of Vivienne’s writhing, milky-white body, her heavy, perky breasts, and her pleading facial expression flashed before her eyes, the blood in Seraphine’s lower stomach boiled all over again.
Her cock instantly went rock hard, lifting stiffly and pulling tight against her tendons.
Seraphine let out a heavy sigh, dragging her hands down her face as the full reality of the geopolitical and hormonal mess she had just stepped into crashed over her.
"Damn it all..." she muttered to the empty chamber with helpless self-irony. "Barely a month into a new body, and I've already transformed into a textbook idiot who listens to her cock instead of her brain..."
She sighed once more, trying to somehow comfort her battered ego. After all, it was hard to blame her - she had only inhabited this world for a short time and simply hadn't learned absolute discipline over her "little brother" downstairs yet. The fresh hormones were still bubbling away like pig iron inside a blast furnace.
***
As Vivienne fled down the corridor toward her quarters, she covered her flushed face with her hands, desperately wishing the stone floor would open up and swallow her whole.
Seraphine hadn't been the slightest bit gentle last night - she had relentlessly enforced a hard, dominant posture, refusing to surrender an inch of control for even a fraction of a second.
For the proud aristocrat of House Drachenberg, being pinned to a mattress and used like a bitch in heat was a devastating blow to her ego.
The absolute fact that she had surrendered her virginity to the Karsfeld heir purely through her own reckless carelessness burned like a live coal. Though she adored humiliating other suitors through physical violence, she had never actually experienced real sex before. She had been completely, utterly inexperienced.
There was only one way to drown out that profound humiliation: take it out on Cordelia. She swore a blood oath that she was going to make her official fiancée's life an absolute, waking hell starting today.
To no one - and especially not to her Sire, Eleonora von Drachenberg - would she ever utter a single word about what had transpired. Her peerless reputation would be permanently pulverized. Instead, she intended to personally exact her vengeance upon Seraphine. Or at least, that was what she aggressively told herself, even as her body violently trembled at the mere memory of the futa girl's touch.
***
Hours later, following a thorough internal audit of her psychological state and its long-term consequences, Seraphine was operating as if the nocturnal escapades had never occurred.
The mathematical probability of Vivienne running to her mother with a tearful complaint was practically zero - the proud sadist would never admit to spiking her own drink and begging to be fucked.
Even so, Seraphine preferred to practice basic operational security.
Following her morning calisthenics in her sports getup and a quick dip in the new bathhouse, she sat down to draft the schematics for flintlock muskets and twelve-pound field artillery pieces.
Rifled barrels and percussion caps were entirely too advanced for this stage - they required precision machine tools and mercury, and Karsfeld didn't even possess a court alchemist with whom she could co-develop advanced chemistry.
Finishing the plans, Seraphine marched down to the riverfront manufactory and instructed Sabine Keller to manufacture a test batch of one hundred flintlock muskets and three field cannons.
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Sabine furrowed her heavy eyebrows, peering closely at the complex cross-sections:
"These machines are centuries ahead of anything we know of gunpowder in this empire... Why on earth do you need this kind of concentrated firepower, my lady?"
Seraphine smiled mysteriously:
"We are establishing a local militia. The valley's defensive posture is pathetic, and an intelligent commander is always prepared. Keep this under absolute, strict security; I do not want any intelligence leaks."
Sabine scratched her thick neck. Shifting a portion of the artisan workforce away from irrigation pipes and onto gun barrels and wooden chassis required logistical gymnastics, but she deeply trusted the heir.
Thanks to the simple assembly line division of labor Seraphine had introduced, the peasant women forged isolated, individual components without having absolute visibility over the final weapon design.
Only the most trusted master forewomen were permitted to handle final assembly. Training a modern linear infantry militia was incomparably faster than spending decades rigorously drilling traditional, armored knightly cavalry.
Returning to the fortress, Seraphine descended to the dining hall. An illusion of superficial calm hung over the table.
Vivienne sat beside Cordelia, aggressively maintaining an aristocratic, ice-cold posture, but the absolute second Seraphine crossed the threshold, the blue eyes of the Arnsbruck aristocrat drilled straight through her.
Seraphine casually took a seat beside little Rosalie von Rosenfeld, chatting warmly and completely giving Vivienne the cold shoulder.
For the spoiled, entitled young miss of House Drachenberg, this was an insult infinitely more agonizing than a physical lashing.
That brazen little bastard won't even deign to look at me?! Vivienne boiled internally, violently crushing her hands beneath the table.
I swear upon the graves of my ancestors, before the week is out, you will be crawling in the dirt at my feet!
When she took a sip of wine, she violently choked - the exact same flavor profile instantly dragged up the memory of last night's searing heat. Her cheeks erupted into a feverish blush, a physical reaction that didn't escape the sharp, watchful eyes of Isolde Karsfeld:
"Is everything quite alright, my lady?"
"I merely... imbibed an excess of wine with breakfast," a thoroughly flustered Vivienne choked out, violently shoving back her chair and bolting to her feet. "Cordelia, be a good pet and escort me back to my chambers."
Cordelia stiffened visibly. She had assumed her fiancée would grant her a reprieve today, but an order was an order.
Inside the bedchamber, Vivienne immediately unleashed her raw frustration upon the younger futa.
Much to her absolute terror, however, the strikes of her riding crop no longer delivered an ounce of psychological satisfaction. With every whistle of the leather, her hyper-sensitive body violently flashed back to the rough, unyielding hands of Seraphine gripping her breasts, while a soaking wave of heavy arousal pooled in her lower belly.
Terrified by this sudden, catastrophic identity crisis, Vivienne hurled the riding crop into the dark corner of the room and screamed at the bruised, cowering Cordelia:
"Get out of my sight! I don't want to lay eyes on your pathetic face!"
The second the heavy door slammed shut, she collapsed face-first onto the mattress, hugging a silk pillow tightly against her chest. Her proud, dominating mind was losing a brutal, unmitigated civil war against her own traitorous, physically needy body.
***
At midnight, a soft knock echoed against Seraphine’s bedchamber door once more. The young heir opened it with stoic, absolute composure.
"You again? Do not tell me you came back for seconds."
Vivienne stood in the corridor holding a riding crop, clearly intending to forcefully reassert her dominance through raw violence. But the second she locked eyes with the freezing, mocking gaze of those sapphire eyes, her remaining shreds of resistance shattered entirely.
Instead of raising the weapon, she let it slip from her trembling fingers, dropped straight to her cold stone knees, and raised her tear-streaked face in utter surrender, whispering in a broken, shaking voice:
"Please... punish me, my lady..."
A predatory smirk bloomed across Seraphine’s lips. She aggressively hauled the aristocrat inside, threw the heavy deadbolt, and ensured the sound of the leather strap and muffled moans of total submission never pierced the thick stone walls.
Over the course of the following week, Seraphine’s double life in Karsfeld moved at a blinding, breathtaking pace. By day, she aggressively trained the volunteer militia under the watchful eye of Adelgarde Karsfeld, who had granted her total operational autonomy, completely mesmerized by her firstborn’s sudden, ruthless military zeal.
In the afternoons, she took Rosalie for leisurely strolls, unintentionally driving Vivienne green with murderous jealousy. And by night... by night, Vivienne routinely sneaked into her bedchamber, desperately begging for intensive lessons in absolute obedience.
The sadistic aristocrat had successfully devolved into a thoroughly submissive, command-starved pet for Seraphine.
When the dawn of the eighth day finally broke, Vivienne didn't attempt to flee the bedchamber. She lay curled up tightly against the elder futa’s shoulder, tracing idle, lazy circles against her heavy chest with a delicate fingertip, looking up with a blissfully adomed smile:
"What is your bidding now, my lady?"
Seraphine raised an eyebrow, genuinely surprised by the uncharacteristic, peaceful docility:
"'My lady'? Just like that, completely unforced?"
Vivienne flushed an adorable, deep shade of crimson:
"You explicitly demanded I address you thusly in private. I am entirely at your disposal; I will execute whatever you command."
Seraphine chuckled softly. She had gambled everything, but the tactical payout was priceless. She pulled the breathtaking aristocrat closer against her side, dropping her voice to a dark, conspiratorial purr:
"I am not going to lie to you, Vivienne. This is going to be terrifyingly dangerous, but if you serve me loyally, I will reward you beyond your wildest imaginings... I want you to act as my eyes and ears in Arnsbruck. You are going to systematically infiltrate and spy upon your own Sire, Eleonora, alongside monitoring Cordelia's treasonous plotting."
She had braced herself for hesitation, but not a single micro-expression of resistance flickered across the girl's face. Vivienne pressed a soft, lingering kiss against the skin of her neck, answering without a fraction of a second's delay:
"Your absolute will is my unyielding law, my lady."
With those words, Vivienne smilingly shifted her weight on the mattress, turning her gorgeous face toward a certain awaiting member eager to be properly looked after.
And just like that, Seraphine successfully secured the ultimate asymmetric weapon in the silent, bloody war to permanently secure Karsfeld’s survival. She had no earthly idea at the time that this dangerously broken, highly intelligent sadist would eventually evolve into the foundational bedrock of her entire imperial intelligence apparatus, and the most fiercely loyal favorite upon whose shoulders the absolute power of her rising dynasty would rest.