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stupid fucking bet.
The words swirled around Hae-rin's clouded head as Kang-hyuk drove into her abused cunt at a slow and antagonizing pace.
bastard. scheming son of a bitch.
how did she end up here?
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The dumb bet was about "the first to lose their temper in the next 48 hours.", classic office shenanigans. Less than 24 hours in, her coffee machine in her office was gone, later found in her wall cabinet. She didn't react. Not even when her meticulously organized case reports and case studies happened to grow a pair of legs and get mixed up, 'all by themselves'.
But she wasn't above those petty antics either. She swapped his black coffee with Nurse Seo-hwa's syrupy sweet latte— watching from afar as his face fell on the very first chug. Her kimchi-jjigae 'accidentally' got dumped on his pristine white shirt, right before a conference.
The rest of the team? Unfazed. They’d witnessed their ridiculous antics far too many times to be surprised by any of it.
But then came the email.
Kang-hyuk had authority that she didn't— and he wasn’t above using it to win this ridiculous bet. The email informed the team about the delegation of a complex orthopedic case to Choi Min-jun, instead of her. She stormed into his office with a furry of a hundred suns to rip him a new one.
And rip him a new one, she did. Only to discover the truth—the email had been sent to her alone. Nobody else.
Thirty-four hours. That’s all it took. Bet thoroughly lost.
After he reassured her that the email had only been sent to her and not the whole team, she huffed and asked, "What do you want?"
But to her great dismay, the smug bastard didn’t want anything… yet. Instead, he leaned back in his chair, that infuriating smirk firm in place, and said, "Patience is a virtue. I’ll cash in when the time is right."
That was two weeks ago.
Now, at 2 a.m., Hae-rin found herself standing in front of his apartment door, knocking.
He had just returned from an international case, as a favor for the health minister, and his official joining was still three days away. But she needed to read that case study he had mentioned, or else her brain would kill her with all the overthinking.
Good thing they were next-door neighbors.
The next thing she knew, they were fighting—arguing over the case, over medical theories, over every damned thing they always fought about. Words sharpened into knives, logic be dammed, and somewhere in between, they lost track of whether they were debating or challenging each other in ways that had nothing to do with medicine.
Then something snapped. In seconds they were on each other—lips clashing, hands grabbing; later a tangled mess of limbs on his king-sized bed. Chest flush against the other, sweat covering their bodies.
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Hae-rin‘s body shook under the pressure of Kang-hyuk’s larger frame, fingers and nails digging into his back and shoulders, her hair sticking to her face with a mix of sweat and tears. She was sure she looked a total mess. God, if someone saw her like this, that too under him, of all men on planet Earth—career down the fuckin’ drain.
It all felt too hot, too tight—too much. Her thighs trembled under the sluggish assault of his hips, every movement winding the tension in her stomach tighter and tighter, like a coil ready to snap. The lines between pain and pleasure blurred so completely that nothing made sense anymore.
His thrusts became harder, pushing her to the edge of insanity, every movement measured and deliberate. “You lost the bet, and you know I’m a man of my word,” he muttered against her ear, his voice low and thick with satisfaction. “This—” he punctuated his words with a slow, deep thrust, “—is my prize.”
“You are absolutely insufferable,” she choked out between uneven breaths.
“I swear to God, Baek, you have to be the most maddening, egotistical—” Her words fractured into a sharp gasp as he thrust particularly deep and then stilled, silencing whatever insult she was about to hurl his way.
“Want me to stop, then?” he murmured, halting completely. This instantly elicited a flurry of curses from her beautiful mouth.
“Look at that face,” he taunted after a sudden, sharp thrust, amusement laced in his voice. “Where’d all that attitude go?”
Her eyes rolled back, a choked gasp escaping her lips as her nails raked harder against his skin. Kang-hyuk hissed in her ear at the sharp sting, but his movements didn’t soften.
Her body was betraying her in the worst way possible, and she hated it. Hated that she could barely keep her eyes open, hated the way she couldn’t stop shaking, the way her legs had long since lost their strength.
She whined under him, begging for release. But Baek Kang-hyuk was never an easy man. He was cruel, with a big dick and an even bigger ego. His favorite pastime was toying with people and watching them crumble.
And her? She was his favorite plaything.
He had always thought about how he’d make her pay for all the times they fought tooth and nail, and what greater opportunity than this?
Her. Vulnerable and bare beneath him, body snug against his.
The bet was just a front. He wanted to torment her just as much as she had.
But control was a losing battle in this game for two. It slipped away like sand between his fingers.
Feeling her soft, all-too-warm body press against his own turned his mind into hot mush, every twitch and tug setting his nerves on fire. His eyes drank in every expression of her reddened face, and his ears memorized every broken gasp and moan from her lips.
The real torment was his own—his cock, painfully swollen, trapped in the vice of her throbbing heat. Fucking hell. Every time he pushed in, he wanted to stay buried inside that tight, scorching heat. Her body clung to him like she needed him, like she was made just for him.
“Baek please—“ she attempted to lift her hips for more, but his sturdy hands on her hips pinned her down.
“Please what?” he mushed, his mouth biting and sucking the soft skin under her ear. “Use your words, Song.”
An almost unfamiliar whine escaped her lips, tears already forming from the denied pleasure.
He pressed his forehead to hers, breathing in her moans. Her lips looked swollen from the way she bit onto them to suppress the humiliating sounds leaving them.
He hadn’t kissed her once since he entered her.
And that, along with everything he was doing, pissed her off beyond belief.
“Fuck you…” she groaned. Mapping out his back with her nails.
“You’re doing just that.” A lazy smirk spread across his face as he thrust into her—slow and hard—forcing a strangled cry from her throat. She arched more into his chest, her frustration palpable. His grip on her sides only grew stronger.
By now, her body should have been accustomed to his slow torture. But like most things unattained in this world by Song Hae-rin, her body didn’t cooperate with her logical brain.
Every time he thrust into her a little harder than before, her breath hitched, her brain went static, and her fingers scrambled against his skin.
Fuck him and his stupid stamina.
How long had it been going on? Too long.
His hips moved in methodical ways—calculated and cruel. He started slow, building her until she was hanging over the edge, only to drag her back down. It was painful, so agonizing. Unfortunately for her, he knew the tells of her body within the first few minutes of this endeavor.
Whenever she tugged at him—desperate to pull him closer, to bite into his neck, shoulder, arm—he knew she was near.
And that’s when he slowed down noticeably. It drove her absolutely mad. It drove her to tears.
She bit his shoulder hard, dragging her nails across his back in revenge—sure to leave marks. She called him every nasty name under the sun in her delirium, voice hoarse from overuse.
Hae-rin’s whines and moans were like narcotics shot straight into Kang-hyuk’s bloodstream. Her desperate pleas tightened every muscle of his body so painfully that his restraint ran low.
“Kang-hyuk, let me…please...” her words trailed off into thin air as her gasps and moans rang around the room. He froze.
Fuck.
Hae-rin never used his given name. Not outside the hospital. Not in the OR. Not in emergencies. Not even when they were in Iran a year ago, treating patients in a war zone. Not even when they shared their first kiss that started this whole mess a week ago.
Never.
The sound of his name on her lips, wrecked and breathless, hit him harder than a bullet ever could.
He groaned, deep and primal, as his grip on her tightened, his nails digging into her skin, surely leaving marks. His restraint snapped like a frayed wire.
His hand snaked around her throat, tilting her face up to meet his gaze, his chest rising and falling with ragged breaths.
“Say it again,” he rasped, voice low and dark.
Her brain was on autopilot with only one goal. She needed to come, or else she’d lose her mind.
“Kang-hyuk…please, let me come.” any sense of shame and pride that was hanging on had left her system completely by that very moment.
Baek Kang-hyuk had spent his entire life mastering control.
On the battlefield? Control meant survival.
In the operating room? Control meant lives saved.
But here?
With her?
Control was just a goddamn game, and he had lost.
A guttural growl tore from his throat as he slammed into her, hard and mercilessly. Finally giving in to everything he’d been holding back. Her cry was a plea, and he answered it with every ounce of pent-up frustration and want he had for her.
His pace was relentless. His body caged her in, his hips snapping against hers with a force that made the bed shake. He buried himself inside her over and over, as if he could carve his name into her very bones.
“That’s it, baby,” he coaxed, his voice dark and breathless, his forehead pressing against hers as he took in every shudder, every gasp, every twitch of her body. “Give it to me.”
And she did.
Hae-rin shattered, her body seizing beneath him as waves of pleasure wracked through her. She wrapped her legs around his waist and buried her hands into his hair to ground herself even a bit. Her lips chanted his name over and over without ever making any sense of what she was saying.
But he wasn’t done with her.
Her walls clenched around him, a tight vice that had him seeing white. Instead of slowing, his pace barely faltered. He chased his own high, dragging her through the aftermath. Her body jerked and arched into his with overstimulation as he continued his merciless rhythm.
“Kang-hyuk—too much...” she sobbed, but her body betrayed her, still quivering and responding to every movement.
“Just a little more, baby,” he husked, his command over himself slipping entirely. His fingers tangled in her hair as he let himself drown in her. “You’re being so good for me.”
His release hit him hard, groans ripping from his throat as he buried himself deep, his body trembling against hers.
For a long moment, there was nothing but their tattered breathing, stars and white swimming behind their closed eyelids. His forehead pressed against hers as he tried to steady himself, trying to piece back the fragments of his shattered control.
“I hate you...” she mumbled against his lips as they plastered against hers.
He let out a breathless chuckle. “Hmm, sure didn’t sound like it.”
Her half-lidded eyes came to full close, cheeks flushed, and her body still twitching with overstimulation. “Go to hell, Baek.”
He grinned, pressing a lingering kiss before murmuring against her lips, “Already there, sweetheart.”
Fuck him and his stupid bet.