At noon, Jin finished his private lunch with Natsuha. After making sure to fill her to the brim and leave her completely satisfied, he headed toward an office where Miwa was waiting for him.
As the old rule goes: "Before going out to conquer the world, you must first secure your own rear."
If he wanted to continue expanding his territory without issues, he knew he first had to thoroughly "pacify" Miwa and strip that poisonous jealousy off her the only way he knew how: by submitting her completely.
...
Knock, Knock
"Come in."
The voice that answered from the inside was soft, but loaded with that mature authority that turned him on so much.
Pushing the door open, Jin entered and made sure to lock it.
Miwa was alone in the office, leaning over her desk with a pen in hand, focused on grading a stack of exams.
The light from the window outlined the features of her beautiful face and the tension accumulated in her neck.
"Here I am, Miwa, just as I promised..." Jin said with a smile as he approached.
As he closed the distance, his senses were invaded by her scent: an intoxicating mix of expensive orchid perfume and that natural smell.
"Geez... I've told you a thousand times that at school you have to call me Shirakawa-sensei."
But although her words tried to be strict, when she finally looked at him, eyes shining with desire and a flirtatious smile that broke her teacher aura were revealed.
"...."
Jin simply walked until he was standing behind her and placed both hands on her shoulders, feeling the heat through the thin fabric of her blouse.
"Are you grading exams?" he whispered, while his fingers began to dig deeply into her tense muscles.
"Mmm... yes..."
Letting out a moan of pure relief, Miwa dropped the pen, while her eyes half-closed and her head fell back, surrendering completely and letting her body melt into those hands.
When Jin's thumb found a sensitive spot at the base of her nape and applied pressure, Miwa's body trembled violently.
"Ahhh..." A totally obscene moan escaped her throat, forcing her to bite her lip hard to keep from screaming with pleasure right there.
"My God... J-Jin-kun... your fingers are... amazing..."
Jin smiled smugly. After all, he had perfected this massage technique spending endless hours massaging Mira's shoulders and back.
Under the constant pressure of his hands, Miwa felt how her tension melted, leaving her body in a state of liquid relaxation.
While Jin kneaded her shoulders, his gaze inevitably lowered toward her cleavage.
Those juicy tits were screaming for him to touch them in a different way. It was obvious that those "muscles" were begging for hands that would cut straight to the chase and dig in with gusto.
His fingers slid slowly downward, as he leaned in to whisper in her ear:
"It must be exhausting carrying all this extra weight in front of the class all day, right, Miwa-chan?"
His hot breath hit her sensitive lobe, causing a shiver: "Let me handle holding them for you..."
And giving her no chance to reply. His hands slid under her armpits and captured her breasts with hunger, filling his palms completely with her flesh.
Even through the blouse and bra, the density, the heat, and the massive weight of her breasts were mind-blowing. They flooded his hands.
"Mmmmh~♥️!"
Miwa shuddered violently, but instead of pulling away, her body leaned back, surrendering completely to his control.
With her permission, Jin showed no mercy.
He grabbed them eagerly, squeezing hard from the base, filling his hands with that delicious weight, while his fingers punished those nipples that were already like stones through the fabric.
He was going all out, determined to drive her crazy.
"Look how they've gotten... they're so hard..." he whispered, increasing the pressure. "I have to massage them thoroughly if we want them to soften up..."
"L-Liar♥️...! This isn't any massage..." Miwa tried to protest, but the wave of electric pleasure that washed over her broke her voice, turning her words into moans.
Jin ignored her, and while his left hand kept kneading mercilessly, his right hand slid slowly downward, passing over her belly until it slipped under the hem of her skirt.
The moment his fingers invaded her panties and touched her clit, Miwa's head jerked back violently, slamming against his chest, totally overwhelmed.
And Jin, who always knew how to seize every opportunity, attacked.
Taking advantage of her open mouth to capture her lips in a filthy kiss.
His new passive [Silver Tongue] skill devastating her mouth with unnatural technique, combined with the expert dexterity of his fingers rubbing her most sensitive spot down below, was lethal.
"Mmmph! MMMMMM~~!♥️"
Miwa didn't even have time to process it before her hips arched and her body convulsed in a violent, explosive orgasm, soaking Jin's fingers instantly and leaving her trembling in his arms.
'So this is what [Silver Tongue] really does...'
He thought, observing Miwa, who lay sprawled out and panting, totally limp and with her mind blank.
Definitely, it was a dangerously sexual skill.
With a satisfied smile, he dragged a nearby chair over, sat down with his legs spread, and pulled her by the waist until she was straddling him, forcing her to face him.
At that moment, not a trace of the strict and dignified teacher Shirakawa remained.
Miwa was completely undone: the rims of her eyes were red, her lips swollen and bitten, and her blouse wrinkled and open, revealing the black lace of her bra rising and falling with her ragged breathing.
"J-Jin-kun... haa... ahh..." she gasped, seeking him out with a hazy, desperate gaze, unconsciously grinding her crotch against his hard bulge. "M-Ms. Kyoko took the day off... We're... ugh... completely a-alone..."
No more words were needed.
With his throat dry from arousal, Jin slipped his hands under her clothes and yanked her skirt up to her waist in one go.
Thanks to the earlier "massage," Miwa's panties were soaked, literally dripping fluids that ran down her thighs.
Meeting no resistance, Jin pulled the wet fabric aside, freed his throbbing erection, and positioned the head against her tight, slippery entrance.
Without warning, he gripped her hips tightly and, with a merciless thrust of his hips, sank into her in one go, burying himself to the hilt inside her hot, tight depths.
Slop!
"Gaaaaah...!"
"Hnggg!"
Moans escaped both their throats.
Miwa threw her head back, her body convulsing as she felt that monstrous invasion fill her completely, stretching her inner walls.
"Ahhh~... Jin...! Yes, yes...♥️! God, I missed you so much...!" she cried out, clinging to his neck desperately and burying her face in his shoulder. "You make me feel so good...!"
Holding her firmly by her thick hips, Jin began to thrust into her from below, pounding her womb without mercy.
Plap! Plap! Plap!
But the chair limited the range of motion of his waist too much.
He needed more angle and depth.
Without pulling his cock out of her for even a second, Jin hugged her tightly against his chest.
"Hold on tight."
With a single powerful movement, he stood up, lifting her into the air.
"Kyaaaah~♥️!"
Miwa let out a sharp cry that was half genuine surprise and half piercing pleasure when he impaled her to a point she didn't think possible.
Her thighs trembled violently and instinctively wrapped around Jin's waist like a tourniquet, desperate to find an anchor while she floated, supported only by his strength and the cock in her vagina.
"W-What are you doing...? Ahhh~♥️!"
With a grunt, Jin adjusted her soft, fleshy ass on his forearms, weighing his prize. And he began to walk.
He took long, heavy, and deliberate steps around the office.
Thump Thump Thump
With each stride, Miwa's body rose slightly only to be dragged violently back down, making her pussy bounce hard on the thick, veiny shaft occupying her.
SLOP! SLOP! PLAP!
The wet, rhythmic sound of her ass cheeks slapping against Jin's pelvis and the internal friction filled the silence of the office.
"Ah~♥️! Hngg~! J-Jin-kun...♥️! D-Don't walk! Stop! Ahhh~!"
Miwa had lost her mind.
The sensation of momentary weightlessness followed by a brutal penetration that pounded her womb again and again caused an electric vertigo in her stomach.
It was identical to the free fall of the world's tallest roller coaster, but concentrated entirely in her vagina, a pleasurable terror that was driving her crazy.
Jin felt Miwa start to have violent spasms around his cock, squeezing him like a fist.
The orgasm was imminent.
He picked up the pace, making the bounces more frequent and deeper, thrusting upward with his hips with every step to meet her halfway.
"Ahhh! N-No...! It's too much...! Jin! J-Jin-kun! Ahhh~♥️! It's here! I'm... I'm...! Ahhh! I'm cumming~♥️♥️!" she shrieked, clinging to his neck, arching her back in a tense arc while her nails dug deep into his shoulders.
Just when her eyes rolled back and the first wave of contractions hit her, Jin took advantage of the vulnerability and pressed his wet lips to her ear.
"Look how you're squirting, you stupid slut," he whispered, biting her earlobe. "Do you like getting fucked by your student standing up in your own office like this?"
"You're a cock-addicted whore, aren't you, Sensei? Say you're my cum-guzzling slut."
Those degrading words, the absolute contrast between her position of authority and being used as a simple portable hole for her student's pleasure, were the nuclear trigger.
They shattered the last fragments of her dignity and her brain short-circuited into pure masochistic pleasure.
"YESSS! I AM! I'M YOUR WHORE! AHHHHHHHH! GAAAAH...!"
Her body convulsed violently in a second climax, chained to and much more intense than the first.
She screamed his name uncontrollably, drooling on his shoulder, while her insides contracted rhythmically, milking his cock until draining the last drop of sanity.
...
Shortly after, while gently stroking her sweaty hair waiting for her to catch her breath, Jin broke the silence.
"Miwa-chan... do you want to know what really happened this morning?"
She, who was still floating in that post-orgasm haze, took a few seconds to process the question, but reality came rushing back.
She pulled away a little, lifted her head to look him in the eyes, and asked with suspicion and fear:
"Yes... What are those girls to you?"
"Those three girls mean nothing to me..." Jin replied calmly. "But Natsuha... Natsuha is my girlfriend."
'I knew it...'
Miwa felt a bitter pang in her chest, a sharp pain that not even the recent pleasure could hide.
As a substitute teacher, she knew the students in her class perfectly well. She remembered Natsuha: young, popular, rich, and with a very seductive body...
"And me...?" she whispered looking him in the eyes, full of resentment and palpable insecurity. "If she is the girlfriend... then what am I to you?"
"You are mine too, Miwa. I want both of you and I don't plan on breaking up with either one." Jin dropped the bombshell firmly, looking her straight in the eyes.
It was a risky move, but the numbers didn't lie: the book showed that her Affection level toward him was pegged at 100%. That, combined with the passive influence of his [Silver Tongue] and his own arrogance, told him he could get away with it.
Besides, lying to her now would only bring disaster later. It was better to be an honest and possessive bastard than a cowardly liar.
Miwa froze.
'What...?'
She didn't expect that honesty...
She wanted to scream at him, slap him, tell him to go to hell... But she couldn't.
The heat that still throbbed violently between her legs, the sensation of fullness he had given her, and the emotional addiction she felt were chains too strong to break.
Her body and her heart no longer belonged to her.
Frustration, jealousy, and desire mixed into a violent wave that needed to get out.
Suddenly, she bit Jin's shoulder with savage force.
Her teeth sank deep into his skin, clamping down until she tasted the metallic and salty flavor of blood.
She wanted to mark him, she wanted it to hurt him as much as it hurt her.
"..."
And Jin didn't even flinch, he didn't stop hugging her or even grimace in pain; he simply held her tighter, accepting the price to pay for his greed.
Seeing that he didn't reject her or let her go, Miwa's rage dissolved, giving way to the sweet resignation of defeat.
Slowly, she loosened her jaw and rested her burning cheek against his strong chest, inhaling his scent greedily.
"Hmph... You got off cheap, you bastard," she murmured. She could no longer live without him, even if she had to share him.
________
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