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Kanghyuk always came back from long surgeries like this:
Adrenaline buzzing in his veins.
Eyes sharp.
Hands restless.
Mind still racing from the battle of keeping someone alive.
Jaewon could see it the moment Kanghyuk entered the on-call room, by the way his cheeks flushed, hair messy, his scrub half-undone under his white coat, and mouth sharp with unspent energy.
"Professor," Jaewon said lowly from the couch, eyes narrowing.
Kanghyuk ignored him.
Stripped off his coat, threw it carelessly, pacing the room like a livewire.
Jaewon set down his book carefully.
"You need to calm down, Professor Baek."
Kanghyuk shot him a wild, challenging glance.
"What if i don’t want to?" he said, voice hoarse from hours of barking orders in the OR.
Jaewon smiled slowly.
A dangerous, sly smile.
"Then i’ll make you."
In two strides, Jaewon had Kanghyuk pinned against the wall, wrist caught above his head, body caged in.
Kanghyuk gasped and then smiled, reckless.
"Make me," he whispered, defiant.
Jaewon’s patience snapped.
He spun Kanghyuk around roughly. Forcing him to face the wall, then yanked down his scrub pants to his knees.
"No prep today, Professor," Jaewon growled into his ear. "You want to act wild, you take the consequences."
Kanghyuk whimpered, but the sound was needy, desperate even, already pushing his hips back.
Jaewon shoved his own pants down, slicked his cock sloppily with his saliva, and without waiting, lined himself up.
"Color," he demanded roughly, voice vibrating against Kanghyuk’s spine.
"Green," Kanghyuk panted, shivering.
Jaewon slammed in deep, burying himself to the hilt in one brutal thrust.
Kanghyuk screamed.
Jaewon gave him no time to adjust, fucking into him immediately, hard and merciless, using Kanghyuk’s own body weight against the wall to hold him up.
"You want to burn yourself out in surgery?" Jaewon growled. "Fine. I’ll fuck the energy out of you."
Kanghyuk moaned under him. His hands scrabbling uselessly against the cold wall, body jerking with every brutal thrust.
Jaewon grabbed a fistful of Kanghyuk’s hair, yanking his head back and forcing Kanghyuk to take it, to feel every inch of him driving deep, punishing, unrelenting.
"You’re mine," Jaewon snarled into his ear. "You come down for me. No one else."
Kanghyuk was babbling now, broken, pleading sounds, unable to form words.
Jaewon grinned savagely.
"That’s right. Can't even think anymore, can you?"
He slapped Kanghyuk’s ass hard, drawing a sharp cry, and kept fucking him through it relentless.
"You’re gonna cum when i say," Jaewon ordered. "Not a second before."
Kanghyuk whined. His cock leaking against the wall, body trembling with the effort to hold back.
Jaewon bent him even lower, pressing Kanghyuk’s cheek against the wall, hand snaking around to squeeze his throat lightly, just enough to make him feel it.
"You belong to me," Jaewon hissed. "No matter how brilliant you are. No matter how many lives you save. You’re mine."
Kanghyuk shattered.
He came untouched, sobbing Jaewon’s name. His cock painting the wall with desperate, helpless spurts. Body clenching violently around Jaewon.
Jaewon cursed, lost his own control, and fucked into him rougher, chasing his own high.
He came deep, filling Kanghyuk with thick, hot ropes of cum. Grinding it deep inside him with a low, guttural groan.
They both collapsed. Jaewon barely managing to catch Kanghyuk before he slid to the floor, boneless.
Jaewon kissed his sweaty temple, whispering soft, hoarse apologies now, holding Kanghyuk tight against him.
"You’re safe," Jaewon murmured, stroking Kanghyuk’s trembling thighs. "You’re mine. Always."
Kanghyuk whimpered weakly but when Jaewon tucked his face against his chest, he smiled. His breathing was slow but shallow, still trying to catch up. His thighs shook when Jaewon tried to move, there was no way he could walk himself.
Jaewon sighed softly, smiled to himself, and leaned down.
"Come here," he murmured. And with practiced ease, he hooked his arms under Kanghyuk’s knees and back, lifting him up effortlessly.
Kanghyuk gave a soft, sleepy whimper. He curl instinctively against Jaewon’s chest, burying his flushed face in Jaewon’s neck.
Jaewon carried him into the attached tiny shower room, heart melting at the way Kanghyuk clung to him even half-conscious.
"You did so good," Jaewon whispered into his hair. "So good for me, Professor."
Kanghyuk made a broken, sleepy noise. Almost like a kitten mewling. Jaewon’s chest ached with how much he loved this man.
He set Kanghyuk gently on the small bench in the shower, keeping a hand on his waist so he didn’t slump over and turned on the water, lukewarm and gentle.
Kanghyuk shivered at the first touch of the water but then sighed, melting even more into Jaewon’s hands as he carefully washed him down, wiping away the mess between his thighs, the sweat from his skin, the blood-rushed blotches on his delicate body.
Kanghyuk blinked up at him once. His eyes dazed and glassy, lips parted. Then in the softest voice imaginable, he breathed:
"Jaewon-ah..."
Jaewon nearly dropped the shower head.
"Fuck," he whispered under his breath, heart clenching almost painfully. But he caught himself. Smiled gently instead.
"Yeah, Professor. I'm here," he soothed, smoothing his palm over Kanghyuk’s damp hair.
Kanghyuk closed his eyes and within seconds, he was dozing off, head resting against Jaewon's chest.
Jaewon chuckled breathlessly. Gathered him up again, wrapping a towel loosely around Kanghyuk’s slender body. Carried him back to bed like he was something sacred. Laid him down carefully. Tucked the blanket up to his chin.
Kanghyuk didn’t even stir. Just a little unconscious smile on his lips.
Jaewon sat on the edge of the bed for a long time. Watching him. Listening to the soft sounds of his breathing. Feeling the faint aftershocks of the past hour thrumming in his veins.
His mind drifted back, months ago, to the first time they ever talked about this.
It had been a night like this too.
A brutal surgery.
A wrecked team.
And Kanghyuk, standing there in the locker room, trembling not from fear, but from too much energy still buzzing in his blood.
Jaewon had touched his arm gently.
"You need help coming down," Jaewon had said, voice steady. "You can't keep burning yourself out like this, Professor."
Kanghyuk had stiffened, defensive, walls rising instantly.
But Jaewon hadn’t pushed.
He just waited.
Offered his hand, quietly.
"I can be that for you," Jaewon had said simply. "Whenever you need it. Whenever it gets too much."
He still remembered Kanghyuk's face that night. The slow collapse of pride, the raw, aching loneliness in his eyes, the way he bit his lip so hard it nearly bled.
And then in a voice so soft Jaewon almost missed it, Kanghyuk whispered,
"I trust you."
Jaewon had promised himself, in that moment that he will never break that trust. No matter what.
Now, watching Kanghyuk sleeping so peacefully in the dim light, Jaewon reached out and brushed a stray lock of hair from his forehead.
"I’ve got you," he whispered, a vow renewed. "Always."
He pressed a gentle kiss to Kanghyuk’s temple. Laid down beside him, gathering him close. And closed his eyes, heart so full it hurt.
Outside the call room, the trauma center buzzed and screamed with life. But in here, in Jaewon’s arms, Baek Kanghyuk was safe.