Your Toilet Is Ready♡
Knock, knock, knock—
"Huh? Who is it?"
Through the window, the faint light of dawn filtered in alongside my phone screen announcing half past five in the morning.
Did I mishear that?
Figuring I still had a little time before heading out for my morning workout, I buried my head back into the pillow for a bit more sleep.
Knock, knock, knock—
"Master, I know you're home. Come out this instant."
"…?"
At the sound of another knock followed immediately by that voice, my eyes snapped open like a computer screen powering on, and I bolted straight for the front door.
Ding-dong—
"Senior Seo-rin? We just saw each other yesterday."
"Honestly, even if you are under disciplinary action, have you gone completely soft in the head? You clearly heard the knocking, and yet… M-Master, you bastard?! Why have you come out naked again?!"
The one hammering on my front door was none other than Senior Seo-rin, clad in full armor.
She wasn't in the tracksuit she'd worn yesterday—she had on the plate she always wore around campus—so this clearly wasn't a massage visit. A regional assignment, maybe?
Could be she came to keep tabs on me before shipping out, worried A-rang and I were cooking up some fresh scheme.
I raised both hands toward her in a show of pure, innocent goodwill. Senior Seo-rin, still flustered by the sight of my bare body, let out a long sigh.
"How in the world did I end up declaring myself a flesh toilet for a shameless Master like this… Fine. I can see you're healthy enough. Get ready."
"Heh. You're calling me Master properly now? Our Senior Seo-rin is so swee— Wait, get ready for what?"
I genuinely had no idea.
I gave my cock a little bounce as I asked. Senior Seo-rin swallowed hard, cleared her throat once, and answered.
"We are leaving for volunteer work on the West Sea. I cannot simply leave you at home committing indecent acts just because you are under discipline."
"Why are you telling me this on the day we leave?! And volunteer work? The school didn't say anything about—"
"The school may have handed down a punishment close to house confinement, but as Master's flesh toilet, I judged that alone insufficient. And had I told you in advance, you might have tried to run."
"Don't you think your opinion of me is a little harsh?"
I let my cock droop as I said it. Senior Seo-rin flustered for a beat, then shook her head firmly.
"Do not play the pitiful act. I have already grasped every filthy corner of Master's nature through this pussy of mine."
"Tch…"
"So wash up and get ready. I will wait here."
"Yes ma'am."
"…Why are you answering and not going in to wash?"
"Hmm… I wonder why?"
At my playful reply, Senior Seo-rin's brow twitched.
She may have become my flesh toilet, but she still fundamentally saw me as "Cheon A-rang's right hand," and this side of me clearly rubbed her the wrong way.
Figuring I'd teased her enough, I was about to head in and wash when—
"Honestly. There is simply no helping this Master of mine."
"?"
Clank—
With a sudden sigh, Senior Seo-rin dropped into a crouch right there on the spot.
"Senior? What are you doing right n—"
"Do not play dumb. I already know every filthy thought running through Master's head."
I tilted my head at the truly abrupt behavior and called out to her, but Senior Seo-rin, still crouched, shoved her face straight toward my cock and—
"Mwah♡ Here. Your toilet is ready♡ You would have preferred my pussy, but unfortunately my pussy-toilet is currently unusable thanks to the armor♡ So I will let you use my mouth-toilet as much as you like instead—use it however your heart desires♡"
"…?!"
To my astonishment, she pressed her lips right against my urethral opening, then opened her mouth wide for me to see.
Right… this senior… for all her outward appearance, she really was an absurdly lewd senior…
Her sudden move left my mind blank for a moment—but then I looked down at the lewd Female Knight crouched before me, gazing up at me and my cock with eyes full of anticipation, and I let out a deep sigh as I checked her lewdness.
In a single day it had skyrocketed—surpassing even her rival, Senior A-rang.
What if Senior Seo-rin's pussy had been a seal locking this lewd nature inside her… and I just punched through it with my cock?
Even I had to admit it was a crude, barely coherent theory—too vulgar to even call a guess. And yet the perverted Female Knight senior still kneeling before me, tongue lolling out long and happy, ready to drink my piss, kept lending that filthy speculation more and more credibility.
I clicked my tongue and spoke down to her.
"I don't particularly want to use a filthy mouth-toilet like this."
"Hnnngh♡ M-Master, you bastard… saying things you don't mean while casually degrading me…♡"
"It's not degradation, it's fact. Who in the world would want to use the mouth-toilet of a lewd Female Knight who shows up at a guy's bachelor pad first thing in the morning?"
"W-Who are you calling a lewd Female Knight who pretended not to care while staring at Master's cock and soaking her underwear♡"
"I never said that?"
One taste of a man and she completely lost her mind.
"Hnnnngh♡ It is far too humiliating♡ Not only am I forced to serve a shameless junior as Master—I have been reduced to a toilet that gives his cock a morning kiss and is forced to drink his urine after he took my virginity like a rape. It is so shameful and humiliating I cannot bear it♡"
"You mean you can't bear holding back a pussy orgasm. You exhibitionist Female Knight."
"Hngh?!"
I'd struck dead center. Under my cold, deliberately degrading gaze, Senior Seo-rin's lips had been twitching into a smile—then her whole body shuddered as if an earthquake had hit her alone.
I clicked my tongue again, loud and clear, and asked the senior still panting with her tongue hanging out like a dog, voice full of certainty.
"You just came, didn't you."
"Kh… To have my womb flutter from a degrading look and words like that… To climax in the hallway with my pussy clenched tight—I am still undertrained…♡"
"Hopeless, the lot of you."
The armor meant I couldn't even check her pussy, so a half-assed lie of "I didn't come" would have papered over the whole thing—yet Senior Seo-rin immediately confessed she'd climaxed from her pussy alone.
For a second I wondered if it was simply her proud Female Knight nature that refused to lie. Then she glared at me with a face that screamed she was about to explode, as if to say it is absolutely not whatever you are thinking, and shouted—
"But I will not break from something this small♡ No matter what humiliation and shame Master subjects me to, I will never break♡ Not until I have properly corrected Master's shameless heart with this pussy♡"
"Heh heh heh. So you were trying to turn me on and tempt me into wanting to use the mouth-toilet? My saying I didn't want to use it got under your skin?"
"Haaah…♡"
I want to drink it♡ I want to drink it♡ I want to serve his cock♡
Despite my mockery, the intense lust for my cock swimming in Senior Seo-rin's sky-blue eyes made me snicker as I spoke.
"Fine. When my flesh toilet goes this far, refusing to use her would make me a pretty lousy Master."
"Kh… Do not get cocky♡ For now I may be forced to play the role of Master's flesh toilet, but…♡"
"Got it, so open your mouth, you toilet bitch."
"Y-Yes…♡"
The eyes that had been glaring at me with a vow never to break went hazy and unfocused the moment I growled the order.
"Here is your mouth-toilet♡ Whether it is cum or piss—or even Master's contemptuous spit—I would be grateful if you dumped it all in with joy♡"
"Mmm, now you finally look like a proper flesh toilet. Extremely adorable. The armor's a bit hard, though."
"You fiendish Master♡ Come—please… please use my mouth-toilet. Grant me the honor of refreshing Master's cock with it…♡"
That armor had to be packed full of raw female scent by now.
Watching Senior Seo-rin plant soft little kisses on my cock while earnestly begging to be used as a toilet, I felt the urge to piss climb my shaft and my body trembled.
"If you don't spill a single drop, I'll give you a reward."
"A reward…?"
"Two creampies in a row without pulling out. How's that?"
"…!"
Gulp—♡
The lewd Female Knight already drowning in the taste of cock swallowed hard at the offer.
But then she shook her head, forced strength into her eyes, and looked up at me.
"That is not a reward—that is a violation♡ You mean to thoroughly corrupt me into a complete flesh toilet♡"
"A flesh toilet already begging to drink my piss has a lot to say about being used for exactly that purpose. You're a convenient pussy-bitch I can use whenever and wherever I want. Anyway—consider it done."
"Kh… This is a contest♡ Whether I fall to pussy-corruption, or Master trains me into a perfect flesh toilet—a contest—ah, aah♡"
Sssssssss—♡
The moment she finished steeling herself with that vow never to lose, Senior Seo-rin opened her mouth wide and began catching the yellow stream jetting from my cock.
"Gulp♡ Gulp♡ Gulp♡"
"Heh heh heh. Listening to you gulp it down. All dressed up in that magnificent armor just to do something this filthy. You're a disgrace to Female Knights and women alike, you know that?"
"Gulp♡ Haa♡ I-I will never break… I will never fall♡ Mwah♡"
Talk was always cheap with her.
Even now she was craning her head forward to match the weakening stream, sucking down every last drop of residual piss that might still be left in the urethra.
"Mm. You really didn't spill a single drop. So—where's the thank-you?"
"Haa… That was delicious♡ Thank you for letting me drink your urine…♡"
"Good girl. This is your place. Remember it well."
"Haa♡ J-Just you wait…♡"
I stroked Senior Seo-rin's head as she swayed like a drunk, then slipped straight into the bathroom.

Line art rough of Bok-soon currently in production…!!