The Ten-Minute Endurance Test
Kang Seonmi lay prone on the massage bed, carefully regulating her breath.
With her bare hips raised high, Han Munho’s hand approached from behind, carefully positioning the enema nozzle.
“Insertion will now begin. Please relax your muscles.”
-Squelch.
“Nngh… haa…”
As the nozzle slid in with deliberate care, Kang Seonmi clenched her teeth tightly. A strange pressure. A brief, alien sensation. The instant something thin and elongated pushed past her entrance, instinctive resistance flared alongside acute discomfort in her rectal opening.
It’s weirder than I thought…
Even so, the feeling seemed bearable. True to her proud nature, she refused to quit halfway and flee. Even in this abnormal situation, Kang Seonmi stubbornly held her position.
Soon came the sound of liquid traveling through the enema hose.
-Glug, slosh…
“Ugh…”
The first sensation arrived slowly yet unmistakably. The feeling of something viscous and clotted sliding into her anus. A cold chill accompanied it, and a heavy weight began to build below her abdomen.
This is… the protein shake…
No matter how she rationalized it, the sensation defied logic. The peculiar texture that was never truly pleasant even when swallowed now forced its way up inside her belly. Within that bizarre feeling, she sensed the protein shake flowing steadily into her body.
-Glug.
“Ugh, haa…”
The characteristic heavy, cold sensation unique to protein shake. It did not flow in lightly like water; the moment the liquid surged, a dense pressure began to fill her from the inside out and spread.
It’s so cold…
Neither warm nor lukewarm, but outright cold. Even as the chill radiated from within and her insides filled with that strange fullness, Kang Seonmi fought to keep her expression neutral.
100ml. 200ml.
As the protein shake continued to fill her intestines, she bit her lip harder by degrees and gripped the bed sheet until her knuckles whitened.
300ml. When roughly half had been administered.
“…Hngh. …Haaaa.”
Moan-like breaths kept escaping her. And for reasons she could not fathom, her body grew increasingly hot.
Despite the pressure inside her, a delicate sensation akin to pleasure transmitted itself through her nerves, tangling her thoughts.
-Drip.
“Ugh, haaaaa…”
Even after the final surge and the full 500ml of protein shake had entered her, the confusing mixture of feelings refused to settle.
This is supposed to be… massage…
The question rose, but no answer followed. If she voiced suspicion only to learn it truly was nothing more than a simple medical procedure, the shame would become unbearable. Moreover, the thought that she might fail to endure a treatment her junior Nanhee had already received wounded her pride too deeply. All she could do was endure.
“To properly observe the effects of the enema, we will maintain internal pressure for the next ten minutes. This is the most critical stage, so even if it becomes uncomfortable, please endure as much as possible.”
“……”
Ten minutes.
It was uncomfortable, but not beyond her ability to bear. The protein shake was colder and heavier inside her than expected… yet it was only ten minutes.
It’s 2:20 now. If I can hold on until 2:30…
Kang Seonmi glanced at the wall clock, then began silently counting the seconds in her head. Her stomach remained quiet for the moment, yet the unmistakable awareness of something filling her persisted.
Along with the rising urge came occasional surges from her rectum, like faint vibrations rippling outward.
-Rumble. Gurgle.
“Hngh…”
Each quiet exhale seemed to intensify the pressure. Three minutes passed in that state, and the sensation of something forcefully pressing against her anal sphincter shifted her emotions into sharp, electric tension.
It’s not as easy as I thought…
She could still hold it, but only by devoting every ounce of concentration to her rectum and anus.
-Rumble. Gurgle.
By the five-minute mark her abdomen had moved beyond mere heaviness into powerful, surging urges.
“Haa, hup… haaa…”
Kang Seonmi bit down hard on her lip and tensed her thighs, desperately trying to suppress the feeling.
Six minutes. Seven. Eight.
Her body reacted to the increasingly agonizing pressure. The slightest lapse in focus and it felt as though everything would come bursting out. No matter how far she had already gone in accepting the enema, she could never tolerate expelling it in front of a stranger. The shame was simply unacceptable.
-Rumble, rumble, rumble…
Just two more minutes…
After another quick glance at the clock, Kang Seonmi lowered her head and clenched both her fists and her sphincter with all her strength. Should she lift her waist slightly? Change position? Or… carefully move a hand back to her buttocks?
All sorts of impulses flooded her mind, but she crushed them with nothing but raw pride.
It’s only ten minutes… Don’t act pathetic…
Until the very end, Kang Seonmi endured by tightening her rear entrance as if nothing were wrong.
“Time is up. You did very well, Miss Seonmi.”
Only when she heard Han Munho’s calm voice from behind did Kang Seonmi finally feel a sliver of relief.
“…I-it wasn’t much. More bearable than I expected.”
She fought to keep any tremor from her voice and maintained an air of nonchalance.
“Yes, you endured it exceptionally well. We will now proceed with expulsion.”
“……Yes.”
The bathroom.
Part of her wanted to dash there immediately, yet a wave of anxiety rose in her mind at the same time.
Can I even make it there like this…?
The terrifying possibility that she might lose control on the way flooded her thoughts. Still, she hid the emotion and spoke as casually as she could.
“…I’ll go to the bathroom now. Which direction is it?”
Despite her effort to sound calm, a strange tension colored her words. Even so, she fought to keep her expression composed and preserve her pride.
“One moment, Miss Seonmi.”
At Han Munho’s next words, even someone as proud as she could not hide her shock.
-Clink.
“There is no need to visit the bathroom. You may expel it right here.”
“…Excuse me?”
Kang Seonmi’s eyes widened.
A large stainless steel basin sat on the floor. The suggestion that she should relieve herself—no, expel the enema’s contents—into it in this very room struck her as so absurd she was momentarily speechless.
No matter how much she had accepted the enema, being told to expel it here instead of in an actual bathroom naturally triggered fierce resistance.
“Are you joking right now…”
“There are three reasons you must handle the expulsion here rather than in the bathroom, Miss Seonmi.”
“Pardon?”
“First, our shop does not contain a restroom. To use one, you would need to step into the building hallway. Since you cannot go out naked, you would have to put on at least minimal clothing.”
“……”
“You are already at your absolute limit. If you attempt to dress and move in your current state… you will almost certainly have an accident.”
It was an irrefutable argument. Just as he said, her body—already pushed to the brink—would react violently to even the smallest movement.
“Then… could you at least give me a gown or something…”
“The second reason is that taking even a few steps right now would be extremely difficult for you. Even if you covered yourself with a gown, do you truly believe you could walk without incident?”
“……”
“And the most important reason of all… confirming the state of expulsion during the enema is itself part of the massage therapy.”
“…Confirming the expulsion… state…”
Though he phrased it delicately, she understood its meaning perfectly. He was simply couching it in professional terms. In reality, he intended to observe every detail as she expelled the contents of her body.
“The enema prior to anal massage is not merely about expulsion. Observing what is expelled, in what quantity, and in what manner is a vital part of the process. We must verify whether your enema was performed correctly, whether additional flushing or intestinal cleansing is required, and examine the anus’s ability to relax and contract during expulsion. All of these are essential steps.”
“So you’re saying you’re going to watch me… defecate, openly…”
“It is a necessary process, Miss Seonmi.”
“……”
No matter how necessary it was, the thought of expelling something from her anus in front of a stranger filled her with humiliation. Yet she had already come this far. Refusing now, after everything, felt strangely pointless.
Still, the idea of letting him see her push out the enema fluid along with the waste that had been inside her body was…
-Rumble, ruuuuumble…
“Haa, hu, hngh…”
Even as she wrestled with her thoughts, her body continued reacting urgently. Caught in a storm of confusion, Kang Seonmi found herself being forced toward a single inevitable choice.