The Masochistic Sex Slave Became a Daughter-in-Law
After finishing a deep kiss with my wife, Seo Yunjae turned to me.
"Bro, I'm taking over as the head of Erebos now. And for the sake of marrying Lee Seol noona, I won't hold back on any means necessary."
Yunjae's face, gazing at me, was still that of the bright young man. I could feel his deep affection and trust toward me. It was like the twisted, secret camaraderie between hardcore fans sharing their idol obsession. But his eyes had definitely changed. Even in those still-gentle pupils, I felt an inexplicable pressure closing in on my throat.
Reading my expression, he thought I'd misunderstood something. Waving his hand dismissively, he said to me,
"Ah... I have no intention of taking your place, bro. Instead, I'm stealing Rex's spot."
At those words, a hot, sweet moan escaped from between my wife's lips, carrying a feverish heat.
"Haa... haa... ah...."
Her eyes were still glazed over, unfocused and misty. Was her heart already stolen by Rex, who had ravaged her with his overwhelming physique? Or was she relieved at the thought of finally being freed from that brutal beast? I couldn't tell.
"Alright, bro. You should head out now. Time to meet your parents. Noona, have a good time with your mother-in-law."
With that, Yunjae left first. He couldn't afford to waste even a single moment now. His life had gained an all-too-clear goal: Lee Seol.
I took my wife's hand. But the heat radiating from her palm was unnaturally scorching. Her trembling fingertips weren't from fear—they were spilling out suppressed arousal.
From beyond the wall, in the Training Room, sounds were drawing her in deeper and deeper.
"Haak, haak...! No.... Aaah! Rex... Aaah! Master Rex!"
A moan verging on a scream. The source echoing from inside the Training Room was the secretary office intern, Shin Ayoung.
Just a few hours ago, she'd left home with her parents seeing her off—a perfect "daddy's girl" with Seoul National University credentials and flawless beauty, the pride of her family. Landing an internship at the secretary office of Choegang Group, Korea's dream job for job seekers, practically guaranteed a full-time position.
Her parents probably still believed, even now, that their precious daughter was shining as a glamorous career woman at the group headquarters, carving out a brilliant future.
But right now... she was mating.

Not with a human—with a dog. Pinned beneath the massive Doberman Rex's heavy body, her human dignity was shattering.
"Haak, haak....! Rex, Master Rex....!"
A situation reason demanded she reject. Yet from Ayoung's lips burst not resistance, but the moans of a female surrendering to pleasure.
Unreal sensations she'd never even dreamed of wrapped around her entire body. Rex's hot breath on her crushed skin, his savage thrusts. Matching the massive male dog's violent movements, her sanity tore apart in shreds.
Squelch, squelch.
Grotesque friction sounds and the beast's growls vibrated the Training Room's air. Each time that nauseating noise reached us, my wife's shoulders heaved dramatically beside me.
"Haa... haa........"
My wife wasn't looking at me. Her unfocused eyes were fixed on that horrific, stimulating scene where humanity was being erased.
Gripping my hand, she mouthed Shin Ayoung's cries of Rex's name, chewing them over like an echo.
"Ah......"
A thin breath leaked from my wife's lips. It was unmistakable envy. She was getting aroused listening to the screams of a young woman being violated by a beast.
Shin Ayoung, lost in ecstasy from Rex's merciless pistoning, her sweet mating cries suddenly twisting into a tearing scream.
"Ah....! What's this... Aaah! It's swelling... inside, it's swelling inside!"

Creak, splurt. Grind, squish.
The sound of flesh meshing without a gap. It had finally begun. The dog's cock ballooning massively inside the woman's vagina, locking her in place—what they call tie/knotting.
Forcing her immobile, it high-pressures hot semen into her to impregnate the bitch. Then waves of prostatic fluid push the seed deep into her womb.
Forty whole minutes. For that endless time, Ayoung had to endure the beast's excretory breeding with her entire body.
"A, aaaah! So hot, too hot!"
Spurt! Gush, gush!
"Hiiik, ah......! Aaaang!"
Squelch, splooosh—!
"A, aahhh! It's... filling me... my insides, filled with dog cum..!"
Her scream-mingled sobs mixed with the wet noises.
Squelch, splat! Slurp, sluuuurp— Crunch, grind!
"Haa.... haa.........."
My wife was losing her reason too.

Gasping raggedly, her body heating up with uncontrollable desire.
Tie/Knotting. It was the moment my wife loved most during mating with Rex. The savage pistoning was thrilling, but true pleasure came after. The instant she was pinned, unable to move, by the beast's massive cock. The humiliating sight of Korea's goddess, once worshipped in purity, vulgarly locked to a dog's dick. She couldn't forget that dizzying thrill of depravity.
Her lower belly throbbed. Her womb began contracting violently. That scorching sensation. The beast's seed blasting high-pressure. The hot, sticky semen endlessly defiling her womb.
"Ah......"
My wife's lips quivered faintly. The mating with Rex that Chairman Seo had forcibly interrupted today. Watching Shin Ayoung receive the "blessing" meant for her, my wife writhed in a thirst mixed with pity and jealousy.
But then, shattering the silence, my phone rang. It was Kim Gisa.
"I've brought your parents. Where should I take them?"
"Ah, thank you, Kim Gisa. Tell them we'll meet at the department store first floor."
The call reached my wife's ears. She'd seemed ready to lose herself and crawl back into the Training Room, but she froze. Her hot breaths slowed, reason flickering back into her unfocused eyes.
Her hand was still burning hot, her face flushed with irrepressible arousal. But with those tiny trembling fingers, she gripped my hand tight and hurried away from there.
Fleeing the beastly noises from the Training Room—no, her own ugly desires.
Even freshly bathed by us moments ago, hearing Shin Ayoung's moans had heated her up unbearably again. A lewd, sour scent of a bitch in heat wafted from her body, stimulating me.
"Ah... honey... I need to use the restroom."
Maybe she'd splashed cold water on her face. When she returned from the bathroom, she seemed somewhat composed. But her breaths were still quickened.
I was amazed anew. This woman, already a slave to pleasure, now accepting it herself without denial. And yet here she was, overcoming it.
I had a faint idea why. She was desperately looking forward to today's meeting with my parents more than anything.
Five years ago, her family had shattered. Since then, she'd lost a warm home. So lonely all that time. Dining with her in-laws was profoundly special to her—a chance to relive that lost familial warmth.
She took my hand and smiled. Her mouth smiled, but her lips quivered. Sweat still beaded on her forehead.
Her body, so thoroughly conditioned to pleasure. But she was barely holding on.
Thud... thud.... Click... click... click...
As we distanced ourselves from Chairman Seo's Training Room, pulsing with lewd energy, the heat of her arousal seemed to fade bit by bit.
We met my parents like that at the department store first floor.
"Mom... Dad!!!"
The moment she spotted them, my wife rushed over and clung tightly to their arms. The lewd aura that had possessed her was gone. In its place was only the innocent joy of a bright child.
Like an orphan starved for affection meeting warm foster parents, pure happiness bloomed across her face. Eagerly, she spoke up.
"Mom, Dad! Before we eat, let's shop here first. Tell me anything you need. I really want to buy you gifts."
I fell for her all over again. Just moments ago, this masochistic slave had pitied the interrupted dog mating. That lewd woman was now beaming innocently, chatting with my parents.
It wasn't split personality. Two contradictory sides, seemingly incompatible, paradoxically complemented each other, shining brilliantly.
"Hehehe."
In that moment, I felt a surge of superiority over Seo Yunjae and chuckled unwittingly. He'd never witness this side of her—only I could.
She finally persuaded my stubbornly refusing parents. Hearing Mom say Dad needed a spring jacket, we headed to the third-floor menswear.
She deliberated carefully, picking and choosing clothes. In that simple daily joy, she radiated happiness, dazzling with brilliant light.
I barely resisted recording it to brag to Yunjae.
She found the perfect jacket matching Dad's taste, but didn't stop there—meticulously selecting more. After a long tussle with Dad's firm "no more needed," she struck a happy compromise.
Spring jacket, pants, shirt. Total 850,000 won.
She pulled out her debit card from her wallet. I'd planned to use the organization's unlimited-limit card, but she insisted on hers. Only I knew the meaning.
The clerk taking the card wouldn't know. Nor my parents... nor anyone there.
Superstar Lee Seol earns hundreds of billions yearly. It all goes to the organization. Even her slave earnings are mostly skimmed as fees and management costs. After selling her body all month and being toyed with in training shows, she gets barely 2 million won monthly.
That was recent, with pay bumped up. And 90% of her saved training fees were seized recently... so probably under 10 million left now.
That precious blood-sweat money from five years. She was using it now for my parents.
Her heart felt so dear, aching my chest. Her eyes moistened at being able to buy clothes for Dad.
No one else would grasp the true weight of that 850,000 won but us.
Now she latched onto Mom, nagging sweetly like a child begging for a toy until Mom confessed her wish.
Finally, Mom shyly admitted—like a girl—that she wanted a lipstick from the first-floor store.
Even high-end, it wouldn't top 100,000 won. But for Mom, who'd lived frugally forever, the department store's glamour alone was overwhelming.
A longed-for but forbidden realm. But now, holding hands with Lee Seol—existence itself a brand—she could stride in confidently anywhere.
Mom wanted to browse with her and pick a lifelong treasure. My wife, thrilled like a kid, led us to the first floor.
Arm-in-arm between Dad and Mom, she looked like their daughter. As ambassador for countless luxury brands, she became their sturdiest, flashiest armor.
Thanks to her, Mom freely explored high-end cosmetics stores she'd never approach otherwise.
Finally, Mom stopped at a top-tier luxury counter—the so-called "big three" of prestige brands. Ironically, it was C Company, where Lee Seol was currently ambassador.
Snooty clerks who'd subtly snub Mom's modest look now treated her like VIP.
Mom picked up a lipstick with trembling hands. 70,000 won. My wife rushed to pay, then schemed cutely to gift a fancy luxury bag too.
She handed her precious debit card to the clerk. But then...
The clerk said puzzledly,
"Um... Ms. Lee Seol... it says insufficient funds??"
My wife tilted her head. With just under 10 million in her account, plenty should've remained after Dad's clothes.
The clerk couldn't imagine she might actually be broke. As a luxury brand employee, she strutted like royalty. And Lee Seol was their ambassador—no way she'd lack 70,000 won.
She just blamed the machine, swiping repeatedly.
Then a text arrived on Lee Seol's phone. From Lee Hyun.
The organization shadowing us like ghosts. They'd watched her happy face leisurely, then pulled this cruel prank for "fun."
My wife's pure white face flushed crimson with shame in an instant. Just 70,000 won. Her account lacked a mere 70,000.
So humiliating, so pathetic. She felt utterly insignificant. Mom's innocent joy at the little lipstick. She wanted to pay quickly and surprise her with a luxury bag she'd never owned.
To see her mother-in-law's overwhelmed delight. But failing even 70,000 won... unbearable.
And that emotion ignited her masochism.

Gush... Instead of tears, hot love juices soaked below. Her pad was dangerously drenched again.
Her eyes slowly succumbed to the masochistic pleasure of misery. Dizzying sweat beaded between her smooth cleavage and underarms.
Her pheromone-laced dizzying sweat and the thick scent of her aroused juices began wafting subtly.
Her legs trembled with excitement. Her lower belly throbbed. She craved her pussy wrecked. Wanted to mate with Rex right now. To plummet below human.
I sensed the danger.
"Dad, pay with this."
I handed Dad the unlimited card and hurried my wife to the restroom.
But in that brief moment... I wasn't the only one catching her secret heat scent.
A natural aphrodisiac that paralyzes male brains into arousal, even in trace amounts women miss.
Beside her wasn't just me—another male. My father. Her father-in-law.
Dad hid his crotch with the new clothes bag. His age-softened dick had stiffened rock-hard.
Still entranced by her alluring scent, he stared piercingly at his daughter-in-law's plump ass heading to the restroom.