Ninja Servants of Subaru (Ninja Girl TF)
Added 2025-04-14 21:00:08 +0000 UTCSunlight streamed weakly through the dusty windows of the old library, casting long shadows over rows of forgotten books and relics. Subaru Natsuki wandered among the towering shelves, his footsteps echoing softly in the quiet room of the Roswaal mansion's most hidden wing.
He wasn’t exactly sure what he was looking for, but Beatrice had hinted that a grimoire that could make him much richer was stored here. “Subaru, why don’t you search for the grimoire of wealth yourself? It’s not something I was particularly interested in, so it should be here, I suppose.”
Drawn deeper into the maze of shelves, Subaru’s attention was caught by a corner where the dust seemed untouched. Hidden on a lower shelf, he spotted a scroll that stood out from the rest. It was wrapped in dark leather with shiny silver patterns that caught the dim light.
Subaru wiped off the dust, revealing the label: "Ninja Servant Summoning. Beatrice didn’t mention anything about ninja stuff. This could be cool!”
He untied the silver string around the scroll with eager fingers. As the knot loosened, a faint glow began to seep from the parchment.
Heart racing with excitement, Subaru unrolled the scroll on the floor. It was covered in strange, flowing writing and symbols that shimmered softly. He couldn’t help but touch the script, his finger tracing the weird symbols.
“I feel like… I shouldn't be able to read this…” Subaru spoke, his expression one of absolute surprise. “But I can… This isn’t Japanese… So why…?”
The doors to the library were thrown open. Making him jump.
“Sup.” The voice of a young girl declared, which Subaru instantly recognized as Felt. Though even knowing that it was her did not spare Subaru from a near heart attack.
“Ah! Felt. What are you doing here?” Subaru turned, still squirming at what was happening.
To his second shock he was surprised to see Reinhard was here as well, having just entered the library just behind Felt. For a moment, all of the worry he had about the situation was gone. “Oh Reinhard, you're here too. Good to see you too.”
“The pleasure is all ours.” Reinhard replied, bowing in his very typical Reinhard fashion. “As for why we are here… We have some stuff to discuss with Emilia and Roswaal so we stopped on the way here. Then we got told that you were looking in a library for a rare treasure, and I thought it would be a shame not to at least say hi before we leave.”
“Ha, typical!" Subaru shook his head, then raised the scroll, almost as if he was showing it off. “But luckily for you, I think it's all going well so far. Just found a scroll, which definitely has some magic. Though I am not sure what kind.”
Felt raised an eyebrow, crossing her arms as she leaned back slightly. "And how exactly do you know it's magic, Subaru? Because it's old and dusty?"
"No," Subaru retorted, his excitement undimmed by her skepticism. "It actually glowed when I touched it! That's not normal, even for old and dusty things."
Felt snorted, clearly amused. "Wow, it glowed? That's your big sign? My grandma's attic would be a wizard's lair by that logic."
Ignoring her tease, Subaru unfurled the scroll again, pointing to the elegant script. "It says it's a 'Ninja Servant Summoning' scroll. Can you believe it? It can supposedly summon ninja servants."
Reinhard, who had been quietly observing the scroll over Subaru's shoulder, perked up. "Ninja servant summoning, you say? I've read about techniques that summon servants in old texts, but I've never witnessed one in action."
Felt looked from the scroll to Subaru, a mischievous spark in her eyes. "Well, why don't you give us a demonstration, Subaru? Summon a ninja servant right here, if it's so magical."
Subaru shifted uncomfortably. "Uh, well, there's a small problem. I'm not exactly a magic caster, you know?"
Reinhard nodded thoughtfully. "If the scroll reacted to you, Subaru, it might be attuned to your spirit somehow. These kinds of artifacts sometimes choose their user. You should be able to activate it."
With a hesitant sigh, Subaru looked down at the scroll. The characters seemed to dance under his gaze, almost encouraging him. "Okay, here goes nothing." He focused on the script, unsure of what he was supposed to feel or do.
"Imagine the servant you wish to summon," Reinhard instructed, watching closely.
Subaru closed his eyes, took a deep breath, and pictured a ninja, agile and stealthy, appearing before him. Maybe also sexy. Ninja girls are sexy and hot, right? That's their whole deal of trying to hide in plain sight. At least if his knowledge from video games was anything to go by. In any case, he reached out a hand and traced a symbol on the scroll as it had shown him when it first glowed.
For a moment, nothing happened, and Subaru's face fell. But then, a faint light began to emanate from the scroll, growing brighter and brighter. Felt stepped back, her earlier mockery replaced with wide-eyed surprise.
Subaru's heart raced as the light enveloped the room, casting strange shadows on the walls. "Uh, guys? I think it's working..."
The light from the scroll suddenly intensified, blinding them momentarily. As it faded, the air felt charged, and the library fell silent, save for the soft rustle of the scroll settling back down on the wooden floor.
Subaru looked down in surprise as a faint glow began to emanate from his hands. "What the…?" Before he could react further, a blast of light shot forward from his palms, curving through the air as if alive, homing in on Felt.
"Felt, watch out!" Reinhard shouted, leaping forward to intercept the blast with his sword drawn, ready to protect her, but as the light reached him, it didn't stop or deflect. Instead, it enveloped Reinhard completely, passing around his sword and wrapping him in its bright embrace.
Subaru's eyes widened in shock, his heart pounding as he watched the glow consume Reinhard, who stood motionless, caught in the unexpected spell.
Reinhard’s appearance changed. While he had always been a handsome man, there was now something distinctly off about his appearance. It was only getting worse by the second. The curves of his face were altering more into a softer, almost feminine visage. Despite how his appearance changed, none of his beauty was lost. His lips grew plumper and there was a crack from his nose as it diminished in size.
A softer face stared at them both with bigger bright blue eyes. The confused expression that he wore made him look adorable as his expression just seemed to highlight the cuter parts of the changes that were happening to his face.
“Ehh!" Subaru and Felt both gasped in unison, then looked at each other for a moment before returning their gaze to the white knight in the room.
"What?" Reinhard exclaimed, his voice a mixture of confusion and concern, but more so for Felt than for himself. Felt on the other hand just pointed at Reinhard, whose features were subtly yet unmistakably changing. "Reinhard, do you feel any different? Did your magic resistances stop working? Your face! It's changing!"
"I... I don't…" Reinhard began, his voice faltering. Suddenly, another shudder rippled through his body, more intense than before. Both Subaru and Felt watched in awe and horror as his frame grew larger, his clothes straining against the sudden increase in size. Standing taller over the pair then he had before, standing heads and shoulders above them.
Reinhard stared at them. One of his hands ran down his face.
"It seems… so," Reinhard replied with a hint of wonder in his voice. "It's strange, but I don't feel any pain. Just... different.” Reinhard’s legs began changing. The lower half of them were gaining a slim appearance. Yet none of the muscle within them was disappearing, gaining a new hint of strength to them.
The inverse happened when it reached his thighs. Both of them swelled like rising loaves of dough. Meat and muscle filled them at every level. With how much more they were growing it made their ripening curve become all the more apparent within them. Further straining Reinhard’s thighs in ways neither of them had imagined. Each massive thigh looked like it was twice if not thrice their original size with how massive they were now.
“Holy! I think different is one way to put it!”
“Reinhard, just what is happening to you! Why did your thighs change in such a manner!”
Reinhard squeezed them, unable to stop himself from doing so. A slight thrill went through him the more he did. Savoring the feel. But despite how strange and worried he should be about it, all he could feel was funny.
Yet the more he stared, the more there was an itch in the back of his mind. Something which hit him on a spiritual level. Making him feel at ease with everything.
Subaru said. “Reinhard, is everything ok? You’re staring at me a little more intensely than I would like.”
“I’m alright. It’s…nothing. Don’t worry about it.”
Despite his words, it did nothing at all to alleviate some of the tension running through them. What fear and worries Subaru and Felt had escalated.
His arms diminished next. Losing some of the defined power they had. A more feminine mystique came over him as he did. With his biceps deflating like a pair of balloons. Cracks came from his shoulders as some of their girth diminished. They moved closer together, adding more to the womanly appearance to Reinhard's frame than there already was.
All of them watched as Reinhard’s core shifted, losing more of the strength it had. With how much bigger Reinhard was, it was easy to see it diminish. With how tight it had become, it was like the shirt that had been thrown over him was getting bigger. The broadness of his hips was becoming more apparent with every step of the process. Rips formed down the center of it. Exposing the slim core Reinahrd had. Further showing the difference in his new build.
Small moans and squeals came from Subaru and Felt. Neither of them able to fully comprehend it. Even though they could watch and see it happen it refused to fully connect.
Reinhard shuddered. Biting his plusher lips as a pull resonated between his legs. In an instant what masculinity he had disappeared. It retreated into his body as if it had never been there in the first place. Both of his balls then followed, sending shocks through his body which dulled his mind. One of his hands reached down. Rubbing between them and feeling a set of new lips between them.
“Oh dear, it seems that I have indeed become a member of the fairer sex now.”
“Wait, you mean you’re a…a…”
Neither of them could finish the sentence. Not with how everything else had just happened. Both Subaru and Felt’s heads went light. As if helium had filled their noggins and was getting worse by the second. What tension and focus they had disappeared.
Both of her cheeks inflated. Swelling against the confines of her pants. With how large they were getting, her pants looked like they were painted on with how much they clung to her backside. Even digging into the front of her crotch with how much tighter they were. What room and volume her pants had were disappearing. Suddenly, the pant’s button snapped, no longer able to support the girth she had.
Subaru and Felt could only stare at the bodacious booty Reinhard had now. Each buttcheek looked like they were a pillow in their own right with how massive they were.
As the last of the transformation settled, Reinhard's attire adjusted somewhat miraculously to fit her new form, though it was much skimpier and form-fitting than before, resembling a ninja's outfit rather than the regal uniform of a knight. Her stance shifted, becoming more graceful yet still poised with the undeniable strength of a warrior.
As they watched, something even more astonishing happened. Breasts began to form on Reinhard's chest, growing into massive round shapes that stressed the fabric of her uniform. Every strap and button seemed to fight a losing battle, struggling to contain the new curves. Bits of fair, pale cleavage peeked through the gaps, as if clamoring for release.
When the tension became too much, the restraints gave way, and the fabric parted slightly, allowing the breasts to bounce freely. Reinhard let out a breath that sounded almost relieved, and a pleased smile spread across her newly softened face. “Much better.”
"Holy Moly! Did that just… Did you just grow breasts?" Subaru asked tentatively, his concern for his friend overtaking his initial shock.
“Yes…it seems like I have. I have to admit these are bigger than I thought they would be.”
Reinhard grabbed one of her breasts and massaged it. Like a merchant, getting a feel for the weight. She did not look at all shocked by what she was doing. Instead she looked calm, relaxed even, almost savoring what was happening to her chest.
Both Subaru and Felt knew that nothing would be the same again, but the immediate concern was what Reinhard, now looking more like a figure from a fantastical illustration than the knight they knew, would do next.
Felt, still staring, finally managed to tear her gaze away from Reinhard's transforming figure to look at Subaru. "Subaru, what did you do?" she demanded, her tone accusatory yet tinged with worry.
Subaru shook his head, his expression one of bewilderment. "I didn't mean for any of this to happen. I thought it was supposed to summon ninjas or something, I didn’t think it would lead to him changing. This is Reinhard, out of everyone I never thought he would lose to a spell!” he protested, his hands shaking slightly as he clutched the now no longer glowing scroll. "The scroll… it just reacted on its own!"
Felt, her voice rising with panic, turned to Subaru. “Then do something!”
“What do you want me to do?” Subaru threw his hands up, his frustration matching hers. “I am no master of this spell either!”
“Just cast a reversal spell! There has to be one in the scroll!” Felt insisted, her eyes darting between Subaru and the transformed Reinhard.
Subaru hesitated, then grabbed the scroll again. “Well, you asked for it!” he muttered under his breath. He scanned the ancient text, looking for anything that resembled a reversal. “I don’t know… This doesn't look like what we need, but it's another spell… Screw it, I'll just try to use both of those at the same time!”
As he focused on the text, Subaru's hands began to glow, one with a soft blue light and the other with a vibrant green. With a deep breath, he directed his hands toward Reinhard, unleashing the energy built up within. Two bolts of light shot forward, twisting through the air. Even though he aimed straight at the knight, the bolts made a sharp ninety-degree turn and homed in directly on Felt.
Felt, caught off guard, could only gasp as the twin bolts struck her. Her entire body started to glow with the same intense light that had enveloped Reinhard. She looked down at herself, her expression one of disbelief mixed with a hint of fear.
“Subaru! What the hell?” Felt's voice trembled as the light began to sink into her body, which wasn’t a good sign for any of them.
Subaru stepped back, his eyes wide. “I... I tried to reverse it, I swear!” He watched helplessly as the spell took effect, which meant that he was now pretty sure that he just made the situation worse.
As the light enveloped Felt faded completely, her entire body began to tremble. Subaru and the newly transformed Reinhard watched in stunned silence as Felt began to change. Her body slowly elongated, stretching taller with each passing second. Felt's eyes widened in a mix of fear and wonder as she looked down at herself, her view inching further away from the ground.
As she grew, her features matured right before their eyes. Her face, once youthful and impish, now took on a more refined and elegant structure. Her cheeks thinned, her jawline sharpened, and her eyes grew larger and more commanding. Subaru couldn’t help but step back as Felt’s stature reached his height and then shot past him, towering over him as her frame continued to stretch until she was nearly one and a half times his height.
Her physical change didn’t stop at her height. Felt’s hips widened, accommodating her new, statuesque form, giving her a poised and powerful silhouette. Her chest expanded, becoming more pronounced and aligning with her newfound maturity. The fabric of her clothes strained against the rapid growth, seams stretching and threads pulling tight as they struggled to contain her changing form.
Felt’s hands flew to her sides, trying to hold down her clothes which seemed smaller and tighter with every moment. "What's happening to me?" she cried out, her voice deeper, tinged with the timbre of maturity.
Reinhard, still adjusting to her own changes, moved closer to Felt, offering a steadying arm. "Stay calm, Felt. We'll figure this out," she said, her voice soothing but carrying an undertone of uncertainty.
Subaru, watching the transformation with a mix of awe and horror, felt a pang of guilt. “I didn’t mean for this to happen,” he murmured to himself, clutching the scroll. He looked from the scroll to Felt, realizing the power it wielded was far beyond what he had anticipated.
As Felt finally stopped growing, standing tall and regal, her appearance was that of a woman nearly twice her age, embodying a grace and presence that commanded the room. Despite her elegant and powerful new look, the confusion and fear in her eyes made it clear she was still trying to comprehend her rapid transformation.
“Ahn~” a sharp gasp suddenly escaped Felt's lips. Her gaze dropped downward, eyes widening in disbelief as her bust began a rapid expansion. Each moment saw her chest swell larger, quickly surpassing her previous proportions, growing through the sizes as if flipping through a catalog at an impossible speed. The growth didn't stop until her bust was more than twice the size of her head, the fabric of her once-modest attire straining to contain it.
Simultaneously, her hips, butt, and thighs began to inflate, each expanding in harmony with her upper body. Her silhouette morphed into one of dramatic curves, each line of her body accentuating a figure that seemed sculpted to an almost impossible standard of perfection. Her thighs thickened, robust and powerful, resembling the sturdy trunks of ancient trees.
Amidst these physical transformations, the remnants of her tattered clothing began to reassemble themselves. The fabric twisted and turned, stitching itself back together into a mockery of her once-elegant yellow dress. The new outfit clung to her enlarged form, designed provocatively to reveal as much skin as possible without crossing into indecency. Strategic cuts and slits in the fabric offered glimpses of her transformed physique, each element of the design accentuating her new, overwhelming features.
When the transformation finally ceased, Felt stood there, a towering figure of Amazonian stature. Her bust was immense, each curve exaggerated beyond belief, her thighs were as thick as tree trunks, and her posterior was as round and large as medicine balls. She looked down at herself, her expression a mixture of awe and confusion. The changes were drastic, leaving her feeling both empowered and uncertain about the physical power and allure she now possessed.
As Felt attempted to confront Subaru, her voice wavered, betraying her uncertainty. "Subaru, what have you—what's happened to me?" she started, her words trailing off as she struggled to maintain her focus.
Subaru, noticing the change in her demeanor, cautiously approached her. "Felt, I'm so sorry, I didn't know the scroll would do this... are you okay?" he asked, his voice laden with concern and sheer disbelief on everything about Felts body.
"I—yes, but I don't... I mean, why would..." Felt's attempt at reproach faltered, her sentences becoming disjointed as her anger seemed to dissipate with each word. Her expression softened, and her stance relaxed slightly as she stared down at Subaru.
"This is just so strange, Subaru, I feel different, but also... it's not bad?" Her tone was questioning, almost as if she wasn't even sure herself anymore. With each sentence she spoke, it became increasingly evident that her initial frustration was giving way to a burgeoning acceptance of her new form.
“I’ll think of something… wait. Did you just…” Subaru exclaimed in shock, having fully expected for Felt to be angry at him.
However Felt nodded slowly, her earlier impulse to argue visibly ebbing away. "I guess... if you're here, it might not be so bad. What should we do now?" Her gaze was now fixed on Subaru. It was as if she was actively looking for his words and opinion.
Subaru blinked in confusion at Felt’s words. "What do you mean by that?" he asked, his voice tinged with concern and even more disbelief. “I don't know any more about this weird situation than you do!”
Before Felt could respond, Reinhard stepped forward, her expression one of realization. "I think I finally understand how this spell works," she declared confidently. "It doesn’t summon ninja servants; it transforms people into ninja servants."
Subaru scoffed at the idea. "That's ridiculous," he retorted, unable to believe what he was hearing.
But Reinhard was insistent, her voice firm. "It's true, Subaru. In the last few minutes, it feels like a ton of ninja techniques and skills have been drilled into my head. And more than that, I feel a strong desire to call myself your servant."
Subaru stared at her in shock. "If you feel that way, that would mean—No, Felt would never feel similarly. There’s no way she would bow to anyone," he argued, his voice laced with disbelief.
However, Felt, standing taller and more imposing than ever, nodded slowly. "It’s true I wouldn’t normally bow to anyone," she admitted, her voice calm yet firm. "But now, I feel... it’s okay to bow to you, Subaru. I feel very similarly to Reinhard. Something deep inside me wants to be your servant, even if just in secret. I want your dreams to come true, no matter what they are."
There was a brief silence between the two girls and Subaru. It honestly felt torturously like forever for him. Felt and Reinhard really just declared their allegiance to him, didn’t they?
Subaru ran a hand through his hair, feeling completely out of his depth. "Uh, okay, this is a lot to take in," he stammered, his voice betraying his inner racing thoughts. "I mean, I’m just a regular guy, and now suddenly I’ve got two... incredibly loyal and, uh, very transformed ninja servants?"
“We will figure it out. I promise.” Felt declared, not a little bit deterred or worried about anything apparently. And she was the three and a half meter lady with literal boulders on her chest.
“If I may.” Reinhard started, having observed the troubled look on Subaru's face "There might be something we can try," she said, her voice calm and collected. "It's called the 'ninja art of seamless integration.' It should make it appear as if we've always looked this way to everyone else."
“Really? Such a convenient thing exists?” Subaru exclaimed, shocked.
“Sure does. It's usually used to smuggle items into places they don’t belong, but I guess we can use it to make it seem like we have always looked like this too~” Felt explained, her proud haughtiness shining through again. “Impressed?”
“I will be if this really works.” Subaru perked up at this, a glimmer of hope in his eyes. " Can you try it?"
Both Felt and Reinhard nodded confidently. "Of course," Reinhard replied. "After all, we are expert ninjas now. Expect only the finest executions of the best techniques."
Felt added with a slight smirk, "Yeah, that's one way to say that we know a trick or two. Ready?"
With a mutual understanding, they both focused, channeling their newfound ninja skills that Subaru has never seen before. Each murmured the incantation while their hands moved through the air in precise, fluid motions, perfectly in sync. The air around them shimmered subtly, a subtle veil of magic weaving around their bodies.
Then suddenly, both of them stopped. Reinhard flashed her signature confident smile at him while Felt wore a very proud expression. Again, there was a moment of silence between them.
“Did it work?” Subaru asked. “I mean… I can still tell that you are… different.”
“What sort of expert Ninja would we be if we didn’t make our master unaffected by the spell we are casting?” Felt declared, almost sounding offended.
“My thoughts exactly. Please don't mistake us for amateurs.” Reinhard agreed firmly, making Subaru feel almost ashamed for asking.
"Well… I guess there is only one way to tell if it worked. Let's leave the library," Subaru suggested, his voice fluttering a bit as he still couldn't get used to this bizarre situation. "If it worked, no one should react to your new appearances."
Both Felt and Reinhard grinned. And thus, the three of them took their steps out of the library, Subaru shaking from the possibility that someone asked him what he did to those two. Now all he could do was hope that whatever spell they cast did in fact deliver what it promised…
—
…
As the clock struck midnight, the quiet of the room was filled only by the soft ticking and the occasional rustle of leaves outside Subaru's window. Lying on his bed, he couldn't help but replay the events of the day in his mind. It had been surreal, to say the least.
Subaru sighed, a mix of relief and disbelief coloring his thoughts. The spell—the "ninja art of seamless integration"—had worked flawlessly. Throughout the day, Felt had moved through the mansion with ease, her interactions with Roswaal and Emilia as casual as if she had always been the towering figure she now was. Even more surprisingly, no one had commented on Reinhard's new, distinctly feminine appearance or the fact that Felt's proportions were now anything but ordinary. It was as if everyone's memories had been altered to accept these changes without question.
The day had ended without incident, which is why the current situation was so baffling to Subaru. His room, usually a place of his privacy in a mansion very much guarded, were people that were not supposed to be there. Felt and Reinhard had managed to sneak into the castle undetected, now standing side by side at the foot of his bed. The moonlight streaming through the window illuminated their figures, casting long shadows across the floor.
"Okay, I am just gonna ask. How long have you been here?” Subaru asked, looking at the two bombshell girls next to his sacred alone time bed.
“If you don’t know, then that means that we are quite good at our job as your personal ninjas, no?” Felt smirked, her sassy reply was something Subaru really didn't need at that moment.
“Then let me ask something else. What are you doing here?" Subaru sat up, looking more directly at the two girls.
Reinhard stepped forward, her voice as calm as ever, but with a hint of something unspoken behind her tone. "Subaru, we need to talk about what today means for all of us," she said, her eyes locking onto his with an intensity that made him sit up straighter.
Felt nodded in agreement, her expression serious. "Yeah, it's about our roles now. You know, as your... ninja servants." Her voice wavered slightly, betraying her uncertainty about how to handle this new dynamic.
Subaru's heart raced. The day’s events had been extraordinary, but this late-night visit suggested there were still unresolved feelings and questions about their altered lives. "Okay, let's talk," he replied, motioning for them to sit.
Subaru nodded, motioning them to sit, but the two girls exchanged a brief glance and took a deep breath instead. Standing firmly, Felt began, her voice carrying a newfound weight. "Allow us to introduce ourselves again, so that you know where we stand."
"I am Felt, born in the slums, now a candidate to become the empress of Lugunica, and I hate this kingdom," she declared with a fierce intensity, "But I will do anything to improve the lives of those who have nothing."
Then, with a fluid motion, she knelt before Subaru. "But that is just a ruse. In reality, I am Felt, Master Ninja, undercover, serving Lord Subaru, and my goal is to make any of your dreams a reality."
Reinhard followed suit, her demeanor solemn yet confident. "I am Reinhard, a knight of Felt, because I believe she has what it takes to be empress."
She then knelt alongside Felt, mirroring her declaration. "But that, too, is just a ruse. In reality, I am Reinhard, Master Ninja, undercover, serving Lord Subaru. My goal, like Felt’s, is to make any of your dreams a reality."
Throughout the entire introduction, Subaru's expression shifted from surprise to utter disbelief. The room was thick with the weight of their words, and Subaru found himself flabbergasted, unable to reconcile the day’s surreal turn of events with the scene unfolding before him.
His voice faltered as he tried to respond, "I... this is... a lot." Subaru paused, trying to gather his thoughts. "You’re both telling me that… despite knowing that I used the servant summoning technique on you… you still want to serve me? And you don’t want me to look for a way to reverse it?"
The room fell silent. There was no hesitation. They really meant everything they said completely seriously. Subaru had to process their statements for a moment, while both of them just looked at him, expectantly and determined. Subaru knew there was nothing he could say to change their minds anymore.
"Now, I guess we need to figure out what my dreams actually are," Subaru said half-jokingly, attempting to lighten the mood and maybe give himself a moment to think about what their words truly meant for him.
At Subaru's attempt to lighten the mood with a joke, Felt's face broke into a smile, her earlier seriousness melting away into a playful tease. "I bet you've always dreamed of spending a night with an overly busty lady in bed, haven't you?" she asked, her tone light yet suggestive.
Reinhard, catching the drift, chimed in with a wry smile, "Is that so? Oh my, what a naughty master we have. Thankfully, we are both skilled in that kind of work too." Her voice was teasing, perfectly in sync with Felt’s playful banter.
Both women then proceeded to crawl into Subaru's bed, their movements graceful and assured. Subaru’s heart raced, and he began to panic as the reality of the situation dawned on him. He was utterly unprepared for this type of attention, especially from his two ninja servants who seemed to be enjoying the flustered state they were inducing.
As they settled on either side of him, Subaru’s mind raced with thoughts of what this new dynamic meant, and how drastically his life had changed in just one day. His last coherent thought before the night took whatever course it was going to take was a mix of bewilderment and realization:
Getting ultra-hot ninja servants sure has various perks that need getting used to...

—
So… Subaru has tried out some new magic. As you can tell, it didn't go exactly as he planned. The ninja girls did in fact appear, they just weren’t “summoned”.
Collab with Warden101
Sketches drawn by ThatFreakGivz