Chapter 686
Chapter 686
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Translator: Ebonarch
Chapter: 686
Chapter Title: Teacher's Challenge (5)
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Rinne's astonishing service didn't stop there.
"Ahng. Ahng. Ahng."
Like a cat stretching languidly, Rinne lay prone with flexible grace and began shaking her hips on her own.
Rinne had been taught the virtues of chastity from birth.
Naturally, this was an act she'd never done before in her life, nor had she ever assumed such a position.
Yet Rinne was a master of nothingness, capable of moving her body down to its very tips exactly as she desired.
Propping her upper body firmly with both arms, she moved only her hips and waist back and forth, stimulating his member.
Each time she pulled her hips all the way back, a foreign sensation pushed up almost to her jaw.
But she paid it no mind.
A mere foreign feeling was nothing special at this point.
Hadn't they mingled their bodies countless times in just this way?
With the pain now far milder than before, nothing could stop Rinne.
-Squish, squish, squish.
The result?
Without ever letting it slip out even once, Rinne's non-virgin hole devoured his cock lewdly from the glans to the base.
There was no denying that he was feeling pleasure.
Even if many sensations related to 'happiness' were blocked off, Rinne's five senses were acutely sharp.
Detecting Shin Si-woo's pleasure in this state of tight, intimate insertion was far from difficult.
-Twitch, twitch, twitch.
The intense throbbing of the meat rod wriggling so fiercely was proof of his pleasure.
"Ahng. Aaahng. Ahng."
Si-woo lay sprawled out, blankly watching his master's hip movements as she not only spread herself wide but moved on her own.
Normally, this should have aroused him immensely.
Wasn't this a chance to behold Rinne's coquettish charms and seductive gestures, unseen by anyone else?
Moreover, the rhythm was metronome-precise, delivering a startlingly taut pleasure straight to his lower body.
But this was a complete failure.
To put it simply, it was mental pleasure that fell utterly short of physical ecstasy.
Sensation-wise, it was exquisite, but any man who got excited by those moans would have to be deranged.
If anything, it acted like an arousal coolant, chilling even millennium-old lust.
"Hoo..."
Yet he couldn't bring himself to say it.
Despite the reciprocating motion, Rinne's body showed almost no reaction.
Normally, even if she didn't vocalize her pleasure, her body's responses made it clear she felt it—but now, not even that.
In other words, from those radio-static moans to her self-initiated thrusting, it was all Rinne's effort solely to excite Si-woo.
Telling a woman trying this hard, "Teacher, you're kinda unsexy? What's with the moans?" felt too cruel.
Especially after he'd already slipped up once and crossed a line.
"You've got more talent than I thought? This is good."
So he offered praise instead.
"Ahng. Ahng. I see."
Rinne paused briefly, then resumed her movements.
Even master-disciple taboo (師弟姦) came with opportunity costs at this point.
Since Rinne had resolved to satisfy her disciple's twisted tastes, there had been considerable expenditure.
Halfway through, she'd seriously considered if she was falling into the sunk cost fallacy.
But hearing his satisfied voice made her feel, for the first time, that enduring the shame had been worth it.
This might actually achieve her goal tonight, igniting her motivation with a surge of optimism.
"You can hit me too."
"Pardon?"
"You can spank my hips with your hand."
Finally, mistaking it for a winning streak, Rinne upped the ante.
Dorothy's snowy ass skin marked with autumn leaves.
And judging by the crisp slapping sounds that had wrapped around him so tightly, he'd clearly spanked her hips in this position.
Being spanked like a naughty child would be humiliating, but at this stage, it didn't even qualify as true humiliation.
'That's not the issue...' Si-woo thought, as the crisis sense he'd briefly forgotten reawakened.
As expected, Rinne began trying all sorts of things.
The intensity kept escalating.
And for some reason, Rinne's own threshold was skyrocketing exponentially.
It felt like he'd triggered something.
Si-woo's eyes unconsciously drifted to the fine tea set neatly displayed on the shelf.
Should he use Rinne as a makeshift teapot, like he had with Dorothy?
But they were already past foreplay and thrusting earnestly.
She might not even permit a play that brought only shame without direct relation to sex.
He decided to try spanking her hips as she asked.
-Slap!
"Ahng!"
-Slap!
"Ahng!"
Through the torn stockings, half-exposed bare skin clung to his hand, while the other half spilled over the mysterious nylon.
Each spank brought a slightly sharper, awkward moan from Rinne, and her hole twitched.
Just like when teasing her nipples—her tightness switch—it clenched steadily, then released, repeating the cycle.
From Rinne's earlier remarks, Si-woo's hypothesis was now nearly confirmed.
Rinne's body undoubtedly felt pleasure and even reached climax.
But for some reason, she couldn't perceive the pleasure stemming from it.
Based on this theory and her physical reactions, spanking her ass gave her pleasure similar to nipple play.
"Ahng. Ahng."
This part was oddly arousing, yet seeing her expressionless face and mechanical moans deflated it...
"As expected of Teacher's ass. The impact feels great—like a drum."
Even Si-woo's lewd taunts lost their edge.
At this point, Rinne didn't seem to mind anyway.
About 30 seconds passed as he half-zonked out, spanking her ass?
Suddenly, Rinne's body seemed to slip from control, transmitting off-beat vibrations.
Compared to the well-tamed mucosa before, it tightened stiffly, like the first insertion.
It was the reaction right before climax.
And it reached the body owner, Rinne, far more vividly than Si-woo.
"......"
Recalling Dorothy's wails, this must be 'going'.
The symptoms presumed to be orgasm fell into four broad categories.
The body briefly lost control.
Especially the front and back holes contracting inward tightly, then releasing unconsciously, over and over.
Breath that had grown ragged filled to the brim, then suddenly halted as the heart raced madly.
Toes splayed so wide they cramped, fists clenched tight, the whole body shuddering violently.
Unpleasant sensations and the foreign feeling blurred away, replaced by a unified oneness.
The first three were sensations she could take or leave, but this oneness wasn't something to simply dislike.
Of course, feeling orgasm while penetrated in such a filthy hole brought a twinge of humiliation...
But viewing it as a physiological response made it hardly embarrassing.
"Kuhuh..."
Her awkward moans paused briefly.
A strange nasal sound leaked through her halted breath.
Her ass clenched even tighter, her wing-like shoulder blades quivering pitifully.
Here, Rinne committed all-in.
If it clenched so tight he could feel every bulging vein on his cock, the pleasure for him must be immense.
Statistically, Si-woo had cum many times when Rinne reached climax.
So, she would emit a ridiculous animal cry to fulfill his satisfaction and conquest.
The animal type? A cow, like Dorothy.
She'd studied and prepared in advance—it was the safest choice.
Even after successive vulgar acts befitting a whore, imitating an animal struck a massive blow to her pride.
"Mmm... Mmm..."
But synergizing physical and mental pleasure would surely hit his tastes.
Like after extreme sparring, she forcibly steadied her panting breath.
She parted lips melted limply, unresponsive.
Vocalization was difficult in this state.
"Mooooh..."
Rinne succeeded in producing a not-too-loud, but not small, sound.
That instant.
"Um, Teacher?"
Si-woo's call, unable to hide his bewilderment, conveyed one clear fact to Rinne.
He wasn't aroused—he found her attempts ridiculous.
Rinne's focus was impeccable.
Once fixated on one thing, she ignored all else.
Even mid-act.
Until now, she'd been absorbed solely in 'satisfying' Shin Si-woo, painting the big picture visible only to her.
But his reaction shattered her illusion.
Like swallowing the red pill, chaotic, painful reality emerged.
"Mooooh..."
Suddenly, even to her own ears, the truly bizarre cry sounded awkward—nothing like Dorothy's.
"......"
Rinne's voice cut off abruptly.
She'd endured his mockery ignoring her natural figure, the humiliation of objectification.
Imitating an animal—what was so impossible about that?
But Rinne had overlooked something...
Shame and self-loathing are emotions born from within.
They intensify when self-initiated, not forced by others.
The truth that her self-humiliating acts stirred no emotion in him brought indescribable disillusionment.
If she'd at least felt climax pleasure, it might not have mattered.
Amid raging currents of ecstasy, self-loathing would be a mere drifting chip.
But unfortunately, Rinne felt no pleasure.
"......"
-Pop!
Rinne rose up.
The embedded member slipped out with a cheerful sound.
With a flick of her fingers, the already torn pantyhose shredded into rags on the floor, and telekinetically summoned clothes draped her body.
Back to her usual self, as if nothing had happened.
Her face burned red amid suffocating humiliation.
"Follow me to the training ground."
"Pardon?"
"Sparring."
"Pardon?"
"Come on!"
Like a bolt from the blue mid-sex, Si-woo was dragged to the training ground.
That day, Rinne channeled her shame and humiliation into rage, unleashing it all on Si-woo during the spar.