The moment they stepped into the accommodation, Eun-jo couldn’t hold back his moans any longer. Panting, he pressed his face against Park Se-yul’s chest.
“Hngh, T-Team Leader…”
The pressure in his blocked urethra had turned painful. Every tiny movement made his lower body throb and his waist twitch uncontrollably. Please… please… he muttered over and over again, not even aware of what he was saying.
Park Se-yul led him into the bathroom and positioned him in front of the toilet. In one swift motion, he pulled down Eun-jo’s bottoms, exposing his lower half, and took hold of him.
“Huh, hah…! Ah…!”
The moment the plug was removed, Eun-jo’s whole body convulsed. Pain and relief crashed through him at once, a bizarre combination that stole his breath. He’d never felt anything like this before.
Before he could even recover, a large hand clamped down around his flushed cock.
“A-Ahh…!”
“No patience, as always.”
Clicking his tongue in mild annoyance, Park Se-yul began moving his hand. Every time his firm grip squeezed over the sensitive flesh, Eun-jo’s breath caught in his throat.
“Uuh, ahh, ahhh…!”
“Hold it.”
Park Se-yul blocked the dripping slit and gave a quiet order. Then, with his other hand, he began stroking again in a slow, relentless rhythm.
Slick pre-cum wet his palm, making each movement louder, squelching with obscene clarity as he moved up and down.
“Hueet, uh… uh…”
Eun-jo could no longer even form coherent words. His mind blank, he surrendered his body to Park Se-yul’s touch, trembling as though every nerve had been lit on fire. Gasping, he tilted his head back, breath hitching, body no longer feeling like his own. Everything was in Park Se-yul’s control—he loomed behind him like an immovable wall.
A sudden wave of emotion surged in Eun-jo’s chest. Feeling helpless and overwhelmed, he turned to glance at him—and then, on tiptoe, pressed their lips together.
Smack.
Their lips parted with a soft, wet sound, and Park Se-yul’s intense gaze locked onto him.
“I was wrong… Huh… please, Team Leader…!”
Just as a tear rolled down Eun-jo’s cheek, Park Se-yul growled in a low, dangerous voice,
“Next time, you’ll do it this way too.”
“Huh… uh…”
“You’ll handle everything yourself—with this.”
He gave the glans a sharp squeeze.
“Don’t you dare cum without permission. Got it?”
Eun-jo nodded frantically, not even sure what he was agreeing to. Watching his desperate expression with satisfaction, Park Se-yul used his other hand to spread Eun-jo’s buttocks apart.
In a blink, the swollen tip pressed against the tight entrance. As Eun-jo gasped, the heated, slick interior—softened by arousal—welcomed him in with little resistance.
“Hahhh…”
Park Se-yul let out a low breath as he buried himself to the hilt, pubic hair brushing against flushed skin. Unlike usual, when the tight ring clenched down like it wanted to bite, the inside was warm and pliant, trembling in anticipation. As he began thrusting shallowly and quickly into that sensitive spot, wet sounds filled the room, and white froth bubbled at the rim.
Eun-jo’s toes curled helplessly with every thrust. Clenching around him with all his might, Eun-jo tossed his head back, sobbing.
“Team Leader… hngh… uh… please…! Huh, hueet… I-I’m gonna die…”
Whether it was semen or urine—he didn’t care. He just needed to release. Crying out, Eun-jo gripped his waist, trying to hold himself together as the relentless pounding shattered his senses.
“Please… please…! Hnghh, I want to cum…!”
“Can I cum inside you?”
“Y-Yes… yes…!”
At last, the answer he’d been waiting for. A low smile crept across Park Se-yul’s lips. As he started thrusting harder, Eun-jo’s moans rose in pitch.
“Uh, uuh…!”
Eun-jo clamped down as he was pushed forward, his body reaching its limit. Sensing it, Park Se-yul finally released the blockage.
With a sudden rush, Eun-jo started to urinate. The sound of the stream hitting the toilet bowl rang out sharply in the bathroom. Trembling with a mix of shame and overwhelming relief, he barely noticed what came next.
A thick warmth spilled inside him.
“Heup—!”
Eun-jo sucked in a breath at the searing sensation. It was a lot—so much that his lower abdomen felt full, and the liquid even began leaking out from where they were still connected. Dazed, Eun-jo stared down at his body. Urine was still dribbling from him, even as another fluid continued to fill him from within.
“Huh… hahh…”
Only then did he realize what was now stretching and heating his belly.
It was the same thing he had just let go of.
“Huh, ah, I… I peed… hueet, ah! I really peed…!”
After pouring every last drop into him, Park Se-yul began to move his hips slowly, deliberately. As the tip of his cock nudged against Eun-jo’s swollen lower abdomen with a kook, kook, he let out a hoarse groan.
“Just cumming as a Guide isn’t enough for you, huh?”
“Hueet, uh… ahhh…!”
Eun-jo couldn’t believe that not only had he come, but there was urine inside him too. Trembling with embarrassment and shock, he gasped for breath. Park Se-yul gave a soft smile and pressed a gentle kiss to his cheek.
“Don’t worry. I’ll take it all out.”
The thick shaft that had been buried deep inside began to slide out. The moment it moved, Eun-jo panicked, afraid that everything inside might spill out along with it. He grabbed at Park Se-yul’s waist, clutching him desperately.
“Ah—no, no! Please! I… I think I’m gonna…! Ah, Team Leader…!”
The moment Park Se-yul pulled out completely, the warmth he’d released inside gushed out. Hot fluid ran down Eun-jo’s thighs in thick rivulets.
The twitching rim clenched and loosened as though it still remembered the shape of him. Watching that hole—so flushed, so lewd—it stirred an instinctive urge in Park Se-yul to claim him all over again.
“Huh… hahhh…”
A wave of raw shame crashed over Eun-jo, flushing him from head to toe.
Park Se-yul caught him as he collapsed, pulling him into his arms. With gentle strokes, he patted his back like soothing a child.
“You did well.”
Only then did Eun-jo begin to cry. Tears streamed down his cheeks, not from pain or fear, but from the overwhelming release. Burying his face into Park Se-yul’s chest, he clung to him as if afraid he might disappear.
Looking down at him—flushed, trembling, thoroughly marked—Park Se-yul’s lips curved with satisfaction.
He’s mine. This one who waits only for my touch, who breaks only at my hands.
“Yeo Eun-jo.”
“Huh… uh…”
Park Se-yul reached out and cupped Eun-jo’s cheek, but Eun-jo flinched and turned his head away, still unable to meet his gaze. Thankfully, Park Se-yul mistook it as lingering shock and let his hand fall.
Damn. That was insane.
The memory of being completely filled replayed in Eun-jo’s mind. His lower body tensed involuntarily.
I… liked that kind of thing?
Afraid Park Se-yul might catch the smile creeping onto his face, Eun-jo buried himself deeper into his arms.
That was the moment he realized a truth he hadn’t dared face before— He had discovered a new part of himself.
***
The training didn’t stop there.
Before long, Eun-jo became used to the sensation of having his urethra plugged. Humans are forgetful creatures—and with each repeated experience, the sting faded into something dull. In its place grew something else: anticipation.
That thrill, that sharp pleasure when the plug was finally removed— It was something only Park Se-yul could give him.
“Mmh…”
Eun-jo stirred from sleep, awakened by a familiar sensation. As his eyes adjusted, he saw Park Se-yul crouched between his legs, blanket tossed aside like an afterthought. He was still fully dressed—neat uniform, styled hair, the picture of professionalism.
Except his hands were anything but.
With practiced ease, Park Se-yul slid off Eun-jo’s pants and grasped his thighs. Cool fingers brushed over sensitive skin, drawing a low moan from his lips. No matter how many times it happened, Eun-jo still couldn’t get used to that temperature difference. Squirming, he instinctively tried to pull away—but Park Se-yul didn’t budge.
He grabbed Eun-jo’s cock and frowned.
“Did you cum?”
The question came with a wry smile.
“You get hard just from being touched now?”
“…No.”
Of course, it was true. These days, he welcomed the pleasure more than the pain. He longed for it.
Knowing exactly what he was thinking, Park Se-yul’s grip tightened.
“Cut the act. Your body’s already begging for it.”
When his shaft was stroked up and down, it swelled almost instantly. It was hard to believe it served the same function as any other man’s—Yeo Eun-jo’s was just too cute. Smooth with not a hint of pubic hair, pale pink in color, and tipped with a round glans that was not only adorable but ridiculously sensitive.
Conditioned through repeated training, Eun-jo let out a soft, shivering moan.
“Hnn, ngh… Team Leader…”
A desperate plea—please, just put it in already. Watching Eun-jo’s flushed expression, Park Se-yul grasped the head of Eun-jo’s cock, angling it toward himself. Then, with a flick of his finger, he conjured a long shard of ice and slowly pushed it into that tight, trembling slit.
“Nnngh…!”
Just like yesterday—and the day before—the greedy little hole swallowed it down in a rush. No hesitation. Feeling how smoothly it slid in now, Park gave Eun-jo’s lower belly an approving pat, as if rewarding a job well done.
“Still keeping it plugged nice and tight. Otherwise, this hole would be leaking all over the place.”
Eun-jo looked up at him with narrowed, sulky eyes. Park chuckled.
“What kind of Guide gives their Team Leader that look?”
“…Me.”
Who was the one obsessed with that dripping hole anyway? Feeling like he was the only one being treated like a pervert, Eun-jo shot him a side-eye glare. Then, mumbling under his breath, he pulled up the pants that had slipped down to his ankles.
“…Shoving a plug into someone’s dick—only you would do that, Team Leader.”
“So? You hate it?”
Park’s hand suddenly tugged at his waistband.
“Want me to take the plug out right now?”
His hand slipped underneath, fingers stroking that sensitive place. When they nudged the plug lodged inside his urethra, Eun-jo gasped sharply.
“Yeo Eun-jo.”
“….”
“Think you can hold it in?”
It sounded like a question, but it wasn’t. It felt more like a command—a test. And deep down, Eun-jo knew—if he said yes, Park Se-yul would just push him even harder, take him all the way to his limits again.
