Watch and Learn
In front of A-rang senior’s eyes—perhaps because we were about to do anal sex, something we had never done with her before—I felt a subtle tension coil through my body, while Seo-rin senior did the same in her own way, as though bracing for some sudden explosion that could erupt at any moment. The instant the glans began to sink slowly inside her, we both let out a small, relieved moan at the same time.
“Hoo, ooooh…♡”
“This damn flesh toilet can barely take the head and it’s already like this? Feels like my cock’s about to snap.”
“That very tightness is proof of an excellent flesh toilet, one that can hold every drop of what Master has poured inside without spilling a single one, is it not?♡ If my rear feels good, you need only say so honestly instead of trying to slander it♡”
“You really are a sly little snake. Trying to dodge it like that?”
Once the glans was fully accepted, the tension seemed to drain from Seo-rin senior as well. She began to push her hips back to meet my movements, while A-rang senior—looking by far the most visibly nervous of us all—asked in a trembling voice.
“H-hey… are you okay?”
“Huu… What do you mean…♡”
“Does it hurt back there? The front hole is made for taking things in, but that one… that’s for pushing out, not putting in.”
“Naturally, the first time I thought it would tear♡ Master’s cock is so large, after all. I prepared and trained myself in advance, resolved to take it from this side, yet reality is indeed different—hnngh♡ H-haah, it is♡”
“Eek…?!”
A-rang senior’s eyes went wide like a startled rabbit as she watched Seo-rin senior happily push herself down onto the shaft. She reached back to touch her own rear and flinched.
“More surprising still. You, who claim to be Master’s number-one pussy, have yet to offer this virginity♡”
“O-offer what?! I’m the one giving it! I was going to take it myself! But you went and stole it completely… Hey!”
“Huuuunnngh♡”
Seo-rin senior let out a loud, deliberate moan as if to make sure A-rang senior heard, then turned to me with a seductive, upturned smile.
“How is it, Master?♡ This is the first rear hole you have ever tasted♡ What does it feel like to claim the hole even Cheon A-rang has yet to give?♡”
“How is it? Downright insolent. A toilet hole trying to sneak out white piss like that is nothing but an insolent hole.”
“S-Seung-yong, you…!!”
A-rang senior glared at me as though betrayed. At the same time, she seemed to realize this was a perfect chance to observe anal sex up close and learn how it worked, so she only ground her teeth and stayed put. I decided to shift the mood with a spanking.
Smack—♡
“Hnghooooh?! W-why are you suddenly spanking my rear?!”
“Why spank it? Because it’s there.”
“Do not sully George Mallory’s famous words like that?! You simply wanted to hit it, did you not♡”
She had been teasing and provoking A-rang senior just moments ago; perhaps the interruption left her feeling unsatisfied.
“Then whose fault is it for having a spankable rear?”
“A spankable rear… Are you saying mine is? Hoo-hoo, Master’s favorite rear to spank…♡”
“What the hell, why is that girl enjoying getting spanked?”
When the senior protested, I answered with another sharp smack and a curt reply. Seo-rin senior’s complaints vanished instantly; she licked her lips and pushed her hips back toward me again.
Of course, Bok-soon burned with jealousy—“Don’t ignore my rear!”—but naturally, none of us heard a word of it.
Schlup… schlurrrp…♡
“How is it, Master? Can you slide in easily at this point?”
“You’re doing well. So why were you clenching so tightly earlier and making things difficult for me?”
“Hnngh♡ E-even when I behave, you still hit me♡”
After a few more spanks, Seo-rin senior’s rear loosened nicely. I slid in smoothly, and A-rang senior—who had been touching her own rear—spoke in a shaky voice.
“W-what… how is it going in so easily?!”
“Because I am Master’s flesh toilet, of course♡”
“I already know you’re a flesh toilet! That’s not what I meant!”
Whether it was because I suddenly picked up speed or because she had never imagined Seo-rin senior’s rear could be this thoroughly trained, A-rang senior’s reaction was intense.
‘Or maybe…’
“Huu… C-crazy… I can barely get a finger in…”
I pretended not to hear A-rang senior’s cute muttering and kept thrusting powerfully into Seo-rin senior’s eagerly offered rear.
Thrust—♡
“Huuuunnngh, uuung…♡”
“Whew, it’s all the way in. What a pain that was.”
Seo-rin senior’s now-pliant rear gripped my cock tightly. Once she had taken me to the hilt, she wore a deeply satisfied smile and panted with her tongue lolling out like a dog.
“Huuuunnngh♡ I-it’s all the way in…♡”
“Mm, it is. Now it’s time to properly show A-rang senior just how excellent a flesh toilet you are.”
“Haa♡ H-how… are you going to make me do something humiliating again…♡”
“Aah, why are you pressing your ear against my womb?!”
Despite her words, Seo-rin senior buried her face against the lower belly of Bok-soon—who had already sprayed her genuine pussy juices—and paid no mind to the mess on her own face. She reached back with both hands, spread her cheeks wide, and shouted loudly so her rival could hear.
“Master♡ The flesh toilet is ready♡”
“Eek…?!”
A-rang senior, who clearly had not expected Seo-rin senior to submit this completely, and who had been poking at her own rear as if imagining anal play, jumped in place.
“Mm, good. I’ll use you right away—huh?”
“Hngh?!”
“Kyaa, kyaaak?!”
Thud—!
Just as I was about to release the urge rising along my shaft straight into Seo-rin senior without hesitation, a powerful vibration suddenly shook the floor.
Could there still be some monster we had not defeated lurking inside?
Thinking so, I looked around warily, but—
“Huh, the ceiling is opening.”
“Precisely above our heads… Wait, it feels as though the floor we are standing on is rising.”
Realizing the identity of the earlier vibration and the floor beneath us as the ceiling slowly opened and our view rose higher, we all stared at one another with blank faces.
“This place we’re standing on… don’t tell me…”
“An elevator? This was an elevator the whole time?”
“Now that we have cleared the interior saha-gin, they are probably issuing us an eviction order.”
“W-wait?! I’m completely naked right now!”
We had planned to look for stairs or an elevator after finishing the subjugation, but who would have guessed the very spot where we were doing something so lewd was a fighter-jet elevator?
Staring blankly at the now fully open ceiling and the blue sky beyond, I gave Seo-rin senior’s rear a little thrust as the ceiling drew closer and her hole grew even tighter and more delicious around me.

Thrust thrust—♡
“Ooooh♡ M-Master, this is not the time♡ W-we need to get dressed♡ I had forgotten, but Kim Bok-soon’s speedboat should be arriving soon♡”
“Heeheehee, it’s unfair that only Bok-soon and I get to do service. You join in too, Seo-rin.”
“Y-you meanie♡ I-I have to run… hnngh♡ P-pull it out, pull your cock out♡”
As the view rose higher and the runway came into sight, Seo-rin senior’s rear squeezed me even tighter. I chuckled and grabbed her plump cheeks firmly.
“Come here. Where do you think you’re running off to, flesh toilet? I haven’t even pissed yet.”
“L-let go♡ We’ll be seen like this♡ They’ll find out I’m a perverted knight who, completely naked on site, spreads her own rear and receives Master’s urine in her anus♡ If you don’t pull out right now, hnnghooooh♡”
She said that, yet had no real intention of pulling away.
I pointed at Seo-rin senior’s rear and spoke to A-rang senior, who had come right up beside me to watch.
“Here, watch carefully and learn. How a rear hole squeezes a cock. Come closer, would you?”
“Aah♡ Cheon A-rang, you wench! Do not look♡ Do not look, I said♡ Master too♡ Can you not hear the boat engine right now?!”
It was no lie meant to escape the situation.
Both A-rang senior and I had indeed heard the motor sound and glanced around.
But we quickly realized Seo-rin senior had mentioned the boat not to end the scene, but to heighten her own exhibitionist pleasure. Without needing to speak, A-rang senior and I looked at each other and grinned widely, our mouths splitting ear to ear.
“Heh heh, stay still! Lee Seo-rin, you bitch, we’ve got you now!”
“C-Cheon A-rang, you wench♡ L-let go♡ Let go, I said♡ Aah♡ We’ll be seen—everyone will know I’m a flesh-toilet knight who services Master’s urine while naked on site—o-oooooh♡”

Shhhhhhh—♡
A-rang senior grabbed Seo-rin senior’s hips and rear with both hands to keep her from escaping, while I began to release my urine into the insolent flesh toilet.
“Let go♡ Let go, I said♡ Look, the boat is right there♡ Everyone can see me receiving Master’s urine…♡”
“Heh heh heh, you take a few days off too! This is perfect. I’ve been wanting to spar a bit and you keep showing up to nag… What the— is this girl cumming from her rear right now?”
The scene was utterly obscene.
“I recall being told several times at yesterday’s strategy meeting that an unmanned boat was coming here, so I fail to understand why everyone is so excited.”
Bok-soon muttered quietly at the sight, but once again, none of us heard a single word.