Morning
Kain woke up to something warm… something soft… and something very fluffy pressed against him.
He blinked.
And blinked again.
There were tails.
A lot of tails.
Wrapped around his legs, chest, and neck like velvet vines.
Heat pulsed off them like a cozy furnace, and in the center of it all was her.
Lupa.
But not exactly.
Her body had grown slightly taller, more womanly, her curves filled out just enough to make his already problematic situation worse.
Her ears were longer, twitching slightly even in sleep, and her tails, six of them now, flared with a faint, ethereal glow.
"...She evolved," Kain whispered like he was narrating a Pokémon game.
"My goddamn vixen evolved into a Legendary"
He shifted under the crushing softness, trying to pry a hand free.
"Lupa," he muttered.
"You're hugging me like I'm a body pillow stuffed with meat"
Her eyes didn't open, but her nose twitched, and suddenly, she nuzzled into his neck and purred.
A purr.
"That's adorable. She's gone full Yandere-Fox Mode"
He checked his system window with a slight tilt of his head.
[Lupa. Desire/Obsession: 91%]
His soul left his body.
With a sigh of both suffering and ego-inflated pride, he slid his hand around to her ears.
Soft.
Sensitive.
Fluffy as fuck.
"Fine. You wanna play, let's play fox," he muttered and gave her a scratch.
Her leg kicked.
"Ahn~"
And then, like a damn furnace, she pressed her forehead to his and whispered, barely audible, "Mine…"
He gently tapped her cheek.
"Yo. Fluffzilla. Wake up"
Lupa stirred, her tails twitching before slowly retracting from their suffocating hold.
Her eyes blinked open, dazed, golden, and half-lidded with lingering obsession.
"…K-Kain…?"
He raised a brow.
"You hogged the bed, wrapped me up like a kebab, and moaned in your sleep. You better not be expecting breakfast too"
Her face instantly flushed pink, and she quickly sat up, pulling the blanket to cover herself even though she was "fully clothed".
"W-What?! I didn't mean to—I just—"
Kain chuckled darkly, sitting up against the headboard like a king.
Cool, relaxed, untouchable.
"You know, Aiden was in this room last night"
She blinked.
"...He was?"
Kain smirked.
"Yeah. You lay right where he sat (lie). Not even a flinch from your nose. Guess his scent didn't matter much anymore, huh?"
Lupa's lips parted, but no words came.
Her ears drooped slightly.
He tilted his head, pretending to scan the air.
"Wow. You don't even look guilty"
She looked down at her lap.
"...I'm not."
That caught him off guard. For just a second, Kain blinked, then casually opened his [System].
[Lupa. Affection: ???]
[Loyalty: ???]
[Lust: ???]
[Desire/Obsession: 100%]
[Override Status: MATE LOCKED]
[Current Bond Status: Terminal]
Kain slowly closed the window with one hand.
"...Well, shit"
"I want to break up with Aiden," Lupa whispered, her voice barely audible, like she was confessing to a crime.
"I can't look at him without lying anymore. It's not fair to him"
Kain reached out, two fingers under her chin, lifting it so their eyes met.
"Don't," he said, tone cold and smooth.
Lupa blinked, confused.
"But—"
Kain's grin returned.
That wicked, perfect smirk.
"You'll just cry and feel bad. Let me rip out another piece of his heart"
His fingers brushed her lips.
"Let the Blue-Haired Boogeyman finish what he started"
She shivered.
"Kain… are you really going to—"
"Already did," he murmured, and with a flick of his fingers, his hair shimmered into a brilliant, cruel blue.
The color that haunted Aiden's every dream.
And Lupa?
She gasped, then blushed.
Hard.
"…Gods help me, I think I love you"
Kain leaned back, arms behind his head.
"They always do in the end"
He got up and began clearing his desk, setting up a crystal orb, mirror, and a sound-dampening rune like a guy prepping for a YouTube prank channel episode titled:
"Stealing Your Girl: Round 2 (ft. I'm his Best Friend)"
He lit a candle, not for the mood, but because dramatic lighting always made the tears glisten better.
Lupa blinked from his bed, sitting cross-legged with a pillow in her lap.
"...Wait. Why are you setting that up?"
Kain smirked.
"Gotta take care of some business. You remember that masked guy who 'seduced' Aqua?"
She squinted.
"...Yeah? The one Aiden kept crying about? With the blue hair and voice modulation—"
She trailed off.
Her eyes widened.
Her ears slowly shot up.
"You—"
Kain gave her finger guns.
"Bingo"
Lupa's jaw dropped.
"You were the blue-haired bastard who railed Aqua?!"
Kain laughed as he clicked a few runes into place.
"Not 'railed.' Elevated. Classed her up. Gave her a proper home"
"Aqua's in your harem?"
"Yup. She calls me Master now," he said casually, adjusting the lighting.
Lupa's hands clenched the pillow so tightly that it gave up and burst at the seams, and fluff went flying.
Her tails flared.
For a moment, just a moment, Kain felt a chill go down his spine.
A cold, ancient, fox-shaped fury behind him.
"...Are you mad?" he asked, casually placing a barrier rune between them.
Just in case.
Lupa paused… then burst out laughing.
"Oh my gods," she gasped.
"That actually explains so much. I always thought Aqua was shallow, but now? No. I get it"
She tilted her head with an amused smirk.
"If I saw that blue-haired swagger demon in a mask, too, I'd fold like a cheap fan"
Kain snorted.
"She did fold. Like three times. In one night"
Lupa threw a pillow at him.
"You're such a villain"
"I'm not a villain," he corrected.
"I'm the final boss of boyfriends"
With a flick of his wrist, the orb shimmered, ready for the call.
Lupa leaned over to watch with a grin.
"We're watching a man die this early?"
"Oh yeah," Kain said smoothly, "And we're recording it in 4K"
Aiden's Room
He squinted at the unknown call request on his tablet.
His hair was messy, still bed-tousled, and his mug of cheap academy coffee steamed gently beside his half-eaten toast.
He should've ignored it.
He really, really should have.
But the rage?
The PTSD from the last time?
Unavoidable.
He accepted the call.
And there he was.
Blue hair.
Smug smirk.
That damn mask that covered up his eyes.
Aiden stood up so fast his chair clattered backwards.
"You again?! What the hell do you want now?! Haven't you ruined enough already?!"
The masked man tilted his head, lazily brushing his gloved fingers down a soft pair of fluffy fox ears.
The camera panned just enough to catch the white and silver fur, the low, pleased hum from the woman attached to them, and the gentle flick of a tail wrapping around his waist.
Aiden froze.
He knew those ears.
He knew that tail.
"...Lupa?" he whispered, horrified.
The masked bastard didn't say a word.
Instead, he kissed the base of her ear and slowly dragged a finger down her tail, the camera catching the shiver that went through her.
Aiden's voice cracked.
"T-Those ears… those are only for a kitsune's—"
"—lover?" the blue-haired bastard finished.
His voice was low, mocking, with just the faintest rasp of satisfaction behind the mask.
"Yeah. She's really warm in the mornings, too. A bit clingy though"
"YOU SON OF A—" Aiden roared, slamming the table.
But the masked man just chuckled.
"Thought you could have another girl? Dude… you fucking jerked off to me taking your first girlfriend"
"THAT WAS–"
Aiden was cut off by a cruel laugh.
"So I'm gonna steal your second girlfriend's virginity as well, I guess it's like another gift from me to you"
Lupa finally looks at the camera, her cheeks flushed and eyes glazed with pleasure.
Her usual confident demeanor is completely gone.
"He made me feel special... and he promised to satisfy me..."
Kain chuckled darkly, running his fingers through her hair.
"That's right, buddy. I'm giving her the warmth she needs and not some half-hearted dates and empty promises"
The orb shook as Kain shifted, pulling Lupa closer to him.
She leans into his touch instinctively, her tails wrapping around his legs.
He took off his shorts, only having his black briefs on.
He then proceeded to kiss her neck, his lips leaving a trail of marks while she struggled to maintain eye contact with the orb.
His hands are already sliding under her clothes (he had her get dressed to add double damage).
"She tastes so sweet, Aiden. Look at this beautiful face before I fuck her tight little fox hole…"
"S-stop it," Aiden's little pleas came out.
Kain didn't care as he gently grabbed her chin and turned her face towards the camera, forcing her to watch as he slipped his hand between her legs.
"She's so wet already... look at her juices dripping down my fingers. This is what she really wanted all along"
Lupa's eyes close in bliss as she moans, her body betraying her words completely.
She starts grinding against Kain's hand, her tails thump excitedly against the sheets.
"See? She's not thinking about you anymore," Kain whispers, his voice full of satisfaction.
"Stop... please... It's not true..."
Aiden's voice is cracking with pain, but Kain ignores him, slipping two fingers deep inside Lupa.
Kain's fingers explored Lupa's wet passage.
Her inner walls gripped him tightly as he thrust in and out, coating his hand with her essence.
Lupa's moans grew louder, more desperate, as Kain's fingers pumped relentlessly inside her.
Her tails thrashed wildly, the soft fur brushing against Kain's skin as her body trembled with pleasure.
Aiden's vision blurred, tears streaming down his face as the humiliation and heartache consumed him.
Once again, he was powerless to do anything, only being able to watch the masked bastard have Lupa squirm and moan under his touch.
"M-my Lupa..." Aiden choked out, his voice barely audible over Lupa's wanton cries.
Kain's chuckle echoed through the room, a dark and sinister sound.
"Your Lupa, Aiden? No, she's always been mine"
"You were just a placeholder, a stepping stone to get to her"
His fingers curled inside Lupa, stroking her inner walls as he felt her climax approaching.
"That's right, cum for me," his voice low and husky with pleasure.
He curled his fingers just so, hitting the precise spot to send Lupa spiraling into ecstasy.
Her cry of release was music to Kain's ears, a sweet reward for his patience and skill.
He pumped his fingers faster, prolonging her orgasm as her walls spasmed and clenched around him.
When her final aftershocks faded, Kain slowly withdrew, Lupa's juices coating his fingers.
He brought them to his mask, licking her essence from his skin with a satisfied smirk.
"Look how happy she is, Aiden. You could've given her this pleasure anytime, but you chose to neglect her instead"
Kain leaned in, his voice a mocking whisper directly into the orb.
"Bet you're thinking of all the things you should've done differently, huh?"
Aiden's fists clenched, his vision red with rage and despair.
"You're a sick bastard, you know that? Using a girl like that, manipulating her for your own twisted pleasure..."
Kain's smirk grew wider, his eyes glinting with malicious amusement behind the mask.
"Twisted pleasure indeed, Aiden. You're one to talk, stuck in your misery and insecurities while I'm out here living life to the fullest"
He straightened up, his movements fluid and confident as he finally divested himself of his black briefs.
His erect cock jutted out, thick and imposing, already twitching with anticipation.
Lupa's gaze, glazed with residual pleasure, slowly focused on the impressive sight before her.
Her lips parted, a soft gasp escaping as she took in the size and girth of the monster about to claim her virginity.
Aiden's jaw dropped, his mind reeling at the sheer audacity of the blue-haired bastard.
"You can't be serious," he whispered, his voice shaking with horror.
"Oh, I'm dead serious"
Kain's chuckle was low and husky, underscoring the arrogance simmering beneath his words.
He grasped Lupa's hips, positioning himself at her entrance with deliberate slowness, the tapered head of his cock parting her folds as he pressed forward.
"I've been waiting for this moment, Lupa"
Aiden's scream tore through the room, a desperate, anguished plea that fell on deaf ears.
"No, stop, not Lupa, she's not for you!"
"She's mine, you bastard!"
Kain's progress halted momentarily at Aiden's outburst, his grip on Lupa's hips tightening.
He turned his head slightly, his mask glinting in the dim light as he regarded the distraught Aiden.
"Well, that's kinda funny"
Kain taunted, his voice unyielding.
"You thought you could have them both, that you deserved it after the way you treated them? You're delusional"
He pushed forward again, his cockhead breaching Lupa's pussy with a fluid, unhindered ease that spoke volumes of her preparedness.
A soft, high-pitched whine escaped her lips as she took the initial intrusion, her body tensing around the invasion.
Kain's thrusts gradually increased in tempo, each stroke deliberate and deep, his massive cock stretching Lupa's passage to its limits.
Her tails thrashed wildly, the soft fur a stark contrast to the brutal, primal act unfolding before Aiden's eyes.
Lupa panted, her eyes half-lidded in ecstasy, her voice a mocking whisper as Kain's cock relentlessly pounded into her.
"You should have been the one to take this step, Aiden. You've always been so cautious, so afraid to claim what's yours"
Each powerful thrust from behind her matched her mocking tone, Kain's cock driving deeper into her body with an intensity that left Aiden breathless.
"You could've been the one to make me scream like this," Lupa continued, her words dripping with cruel satisfaction.
"But no, you were too worried about hurting me"
Kain's fingers dug into Lupa's hips, his pace unrelenting as he thrust deeper.
Lupa's walls fluttered around him, her inner muscles clenching and releasing in time with his thrusts, urging him on.
Aiden's hands shook, his fingers itching to brush against the small length beneath his pants once more.
He squeezed his eyes shut, biting back a whimper at the shameful pleasure that coursed through him at the mere thought.
It was a cruel twist of fate, knowing Lupa's cries of ecstasy were prompted by another's touch, yet Aiden couldn't deny the gnawing ache within him.
"Pathetic," Lupa's scornful tone cut through the fog of lust clouding Aiden's mind.
Kain's pace never wavered, each thrust a vicious reminder of Aiden's inadequacy.
He couldn't even look away, transfixed by the raw, unbridled passion playing out before him.
With a ragged breath, Aiden reached down, his fingers closing around the modest girth of his erection.
He stroked himself tentatively, the friction a pitiful contrast to the intense pleasure being elicited elsewhere.
As Kain pounded into Lupa, he reached up with one hand to grasp her fox ears, tugging gently on the soft fur as his other hand roamed her body.
His fingers tweaked her nipple, sending a jolt of pleasure through her aroused frame.
"Again, Aiden?"
Kain taunted, his voice low and husky with pleasure.
"You can't resist, can you? So pathetic, touching yourself while watching me fuck your woman"
Lupa's breath hitched at the dual sensations of Kain's thrusts and delicate touches, her hips jerking into his hand as she moaned wantonly.
"Don't stop," she begged, her voice strained with building ecstasy.
"Make me scream for you"
Kain's grip on her ears tightened, his fingers digging into the sensitive skin as he fucked her with renewed vigor.
Lupa's nails dug into Kain's arms, her body arching into his touch as she teetered on the brink of climax.
Aiden's trembling hands slowed, his gaze snapping up to meet Kain's as the other man's cruel laughter pierced the air.
"P-please, just stop," Aiden begged, his voice a pitiful whisper.
"I can't take this anymore"
Kain released Lupa's ears to wrap an arm around her waist, pressing her back against the wall as he continued his relentless assault.
Lupa's tails, no longer bound by the constraints of her arousal, wrapped around Kain's legs, the soft fur a stark contrast to the brutal intimacy unfolding before Aiden's eyes.
The orb's camera panned out, capturing the full scene in crisp 4K resolution.
"Don't worry, Aiden," Kain taunted, his voice a low, menacing growl.
"I'll give you a front-row seat to my victory"
With a final, vicious thrust, Kain buried himself to the hilt inside Lupa, his hips grinding against hers as he spilled his seed deep within her.
With a grunt of pleasure, he withdrew from Lupa's spent body, his thick cock glistening with his cum.
He stroked himself a few times, coating Lupa's fluffy tail and the base of her ears with pearly ropes of cum.
Lupa shivered, her sensitive skin tingling where Kain's seed landed, marking her as his in a perverse display of dominance.
"Look at that, Aiden," Kain's voice dripped with smug satisfaction as he stepped back, admiring his handiwork.
"I've decorated your girl with my essence. She's mine now, inside and out"
The orb's camera zoomed in on the messy aftermath, Lupa's formerly pristine fur now streaked with Kain's cum.
Her tails, still wrapped loosely around his legs, slowly released him as she slumped against the wall, her breath coming in ragged gasps.
Aiden's eyes felt dry, his mind numb with the intensity of the scene before him.
He could only watch, mesmerized and appalled, as Kain's cum dripped down Lupa's fur, painting a perverse picture of his betrayal.
Lupa's laughter cut through the heavy atmosphere, a cruel, mocking sound that mocked Aiden's pathetic state.
She pointed a shaky finger at the orb, her eyes glinting with a mixture of humiliation and dark amusement.
"Look at that!" she cackled, her voice ringing out starkly against the silence of the room.
"The poor bastard actually came watching another man cum all over me!"
Kain's chuckle joined hers, a deep, gravelly sound that resonated with sadistic glee.
"Isn't that something, Aiden? You couldn't even wait for me to finish before you spilled your pathetic load. You really are a loser"
Aiden's face burned with a mix of shame and anger, tears pricking at the corners of his eyes as he tried to form a response.
But words failed him, stuck in the pit of his stomach where the crushing weight of his inadequacy resided.
"Don't even try to explain," Lupa scoffed, rolling her eyes.
"We all know the truth – you're just jealous that you can never make me feel this good"
As the orb's camera panned out, showing the whole sorry scene in stark detail, the last image seared into Aiden's brain was the unmistakable smirk on the man's face.
"And remember, Aiden," the blue-haired bastard said, his voice dripping with mocking condescension, "try being a better partner to your next girlfriend"
"She deserves so much more than a pathetic mess like you"
With that parting shot, the orb's feed suddenly went dark, plunging Aiden into oppressive silence.
He stood there, frozen, his heart heavy with defeat and his mind reeling from the crushing depth of his own inadequacy.
The weight of his failure bore down on him like a physical force, driving the breath from his lungs and leaving him gasping for air.
"K-kain… I need to call him… he'll know what to do"
Kain's Room
He was lying on his bed, arms behind his head, completely shirtless and smug as hell, Lupa's fluffy tail wrapped loosely around his waist.
She was still breathing heavily, curled up against him with a glazed, ruined look in her eyes.
He hadn't even wiped the smirk off his face when his phone began to ring.
"Oh, for the love of—"
Kain muttered, glancing at the caller ID.
He nearly choked on his own laughter.
Aiden.
The poor bastard.
Lupa stirred beside him, her ears twitching adorably.
Kain reached over and casually muted his phone for a second.
"You gotta be kidding me," he said under his breath
"He just watched his girl get folded like laundry, and his first instinct is to call me?"
He leaned forward and whispered with a chuckle, "She was right here, bro"
Unmuting his phone, Kain adopted his usual charmingly concerned tone, masking every trace of his earlier villainy.
"Yo, Aiden? You good, man? You sound like someone just ran over your puppy"
"Kain! K-Kain, I—"
His voice cracked.
"Lupa cheated on me!"
Kain gave a masterclass in faux-surprise.
He even gasped.
"No. No way. Lupa? Are you sure?"
In the background, a very satisfied fox girl snorted softly into Kain's chest.
"I-I saw her… with him again… that bastard with the blue hair!"
Aiden's fists clenched.
"I should've known something was wrong after she wouldn't let me touch her ears…"
Kain kept a perfectly straight face, though internally he was howling.
"Damn, that's sacred for kitsune, isn't it?"
"Yeah!"
Aiden said desperately.
"She said it was only for her mate"
His voice cracked again, weaker.
"She flinched when I tried reaching for it. Like I was disgusting"
Kain tilted his head, feigning deep, solemn thought.
"Sounds like you really need closure, man"
Aiden nodded slowly, clearly on the verge of tears.
"Do you think… Maybe I can win her back? Maybe I just wasn't giving enough attention…"
Kain glanced at Lupa's bare back, the light bruises and kiss marks he'd deliberately left for her to see in the mirror later.
"Are you sure that's what you want, man?"
"You said the blue-haired bastard claimed her, right?"
"Yeah," Aiden muttered, his voice wobbling.
"But maybe she's confused. Maybe… maybe it's not too late"
Kain leaned back, resting his head on his arms again as Lupa nuzzled deeper into his side, utterly content.
Her ears twitched against his bare chest as if agreeing with the absurdity of the conversation.
"Hmm," Kain hummed thoughtfully, already cueing up the next act of cruelty in his head.
"But if she already gave her ears to him…"
He paused, letting the silence stretch just long enough to make Aiden squirm.
"That's like a kitsune wedding ring, right? If you believe in all that spiritual bond stuff?"
"I-I mean, yeah, it's tradition. But maybe she didn't mean it—maybe it was just a slip—"
Kain smirked so hard it nearly broke his face.
Lupa, still pretending to sleep, let out a very self-satisfied sigh.
"You're saying she slipped… into another guy's bed?"
Kain asked lightly, biting back a laugh.
Aiden didn't answer immediately.
Kain could practically hear the gears in his head grinding to a slow, painful halt.
That special kind of dawning horror, the one that creeps in when you realize you're not the main character of your own story.
"Damn," Kain muttered, his voice now dripping with faux sympathy.
"I'm sorry, bro. That's rough"
"Y-you think I should confront her?"
Kain's grin was pure evil.
"If it gives you closure," he said with a soft chuckle, "sure. But just… be ready, Aiden. Sometimes, when a girl moves on… she really moves on"
He hung up before the poor bastard could reply, tossing the phone aside.
Lupa peeked up at him, that smug, lazy expression barely hiding her amusement.
"You're awful," she whispered, her voice still hoarse.
Kain glanced down at her, brushing a thumb along her fluffy ear.
"Yeah, but you like that"
He slid out of bed like a man who hadn't just ruined someone's life.
He stretched, arms high over his head, letting the sunlight dance off his chiseled torso.
Lupa's eyes trailed over him with a lazy hunger, but she didn't say a word, just kept her tail loosely swaying behind her.
"Get dressed," he said casually, tossing her shirt from last night onto the bed.
"We've got a scene to rehearse"
Lupa blinked, still recovering.
"Scene…?"
"Aiden," Kain replied, already rifling through his wardrobe, "is gonna confront you in class today"
"Probably cry. Maybe scream. Definitely makes a fool of himself"
He threw on a black shirt.
Tight enough to show off, but not enough to brag.
Dark slacks, black boots.
He took his time buttoning up the sleeves, smirking at himself in the mirror.
"You're gonna need to keep a straight face," he added coolly.
"Poor bastard still clinging to the idea you were his"
Lupa sat up slowly, dressing piece by piece, ears twitching.
Her gaze held that same lazy, satisfied gleam as before, but now laced with anticipation.
[System Notification]
[Lupa Kitsuna has been added to your harem]
[She will no longer question your actions and will follow you whichever path you choose]
Kain raised an eyebrow at the glowing window before him.
"Took long enough," he muttered, swiping the notification away.
Another prompt appeared immediately:
[Query Detected: Will this affect Subject's Yandere parameters?]
[Answer: No suppression. Loyalty overrides consequences]
Kain blinked.
"Wait… so she's loyal and still clinically insane?"
Behind him, Lupa hummed softly as she got dressed.
Kain sighed with a smirk, straightening his collar.
"Guess I need to explain some things later"
Lupa tilted her head, confused.
"Hmm?"
"Nothing," Kain said smoothly.
"Just thinking about breakfast"
And maybe, just maybe, a little public humiliation to go with it.