Chapter 683
Chapter 683
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Translator: Ebonarch
Chapter: 683
Chapter Title: Teacher's Challenge (2)
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A man's sexual arousal isn't solely dictated by physical pleasure.
Who his partner is and the situation they're in are crucial factors as well.
Viewed through that lens, Si-woo was experiencing an excessive level of mental excitement.
Si-woo knew Rinne's usual demeanor all too well.
She possessed the refined elegance of a lord's cherished daughter, blended with the crisp aura of a martial artist.
If likened to a flower, she was akin to a black rose—stunningly beautiful, yet deadly with poison-tipped thorns that could fell anyone daring to pluck her.
And her strength? During spars, it was always Si-woo who ended up with a broken limb, rolling on the ground, while Rinne looked down with her lofty gaze.
Yet here she was, stripped bare save for her pantyhose, kneeling before him.
Her upward glance, as if gauging his reaction in that pose, sent his senses reeling.
Regardless of the circumstances, the reversal in eye level and gaze instilled a profound sense of conquest.
Lick... lick...
Rinne's tongue meticulously traced the shaft, severing his train of thought.
Even someone as cool and prickly as her had a tongue that was naturally warm and smooth.
The occasional brush of her hair against his thigh and her tepid breath sent shivers of delight through him.
And to top it off, he had a prime view of her cherry-like nipples and pert breasts—something rarely seen. It was arguably one of the ultimate indulgences a master could offer her disciple.
"Slurp... slurp..."
But there was one unexpected twist.
What Rinne was doing wasn't fellatio in the strict sense.
From start to finish, she simply kept licking.
After licking the shaft for quite some time, a single drop of pre-cum plopped onto her forehead.
The mental exhilaration, combined with the ambiguous stimulation that fell short, had caused clear fluid to bead up like a spring welling forth.
Rinne rubbed her forehead and locked eyes with Si-woo's glistening urethral opening, now slick as if he'd wet himself.
Even in this moment, her expression remained utterly composed, devoid of any allure or embarrassment.
The only thing present was fervor.
"Is this a precursor?"
"What do you mean?"
"It didn't come out before."
She paused her licking to scrutinize it intently.
"Does it emerge when you're satisfied with the sexual preference?"
He could guess what she was misunderstanding.
She seemed to think it was some kind of heartfelt essence, like the juices that gather when grilling shiitake mushrooms.
Though they'd put it off several times, this was Rinne's first real encounter with his cock, as they'd always inserted right away.
"That's not it."
"Why?"
"Even if you ask me... This is pre-cum. It comes out naturally. You just haven't seen it properly before."
"......"
Rinne's eyes widened ever so slightly, then narrowed.
This was a textbook case of knowing something in theory but not connecting it to practice.
Still, she didn't throw a tantrum or get annoyed.
She resumed licking the shaft just as before.
Until that point, Si-woo had thought her psychological barrier lay at that spot.
But now, a realization dawned.
Did Rinne even know what proper fellatio entailed?
"...Slurp..."
And that hunch was spot on.
Last night, Rinne had only eavesdropped from beyond the door.
Visually, she'd only caught the tail end—sensing the mana fluctuations, rushing back, and glimpsing him thrusting into Dorothy's rear, along with the handprints on her ass.
The rest she'd inferred solely from sounds and dialogue.
If it had been a fight between Dorothy and Si-woo, Rinne could've visualized most of it mentally.
Unfortunately, she lacked the prior knowledge to discern specific caresses from audio alone.
Her life had been devoted to the sword, after all.
Thus, it never occurred to her that she had to cram that massive thing into her mouth until her jaw ached.
She was simply puzzled: 'The sound's different from Dorothy's.'
Smack.
That prompted Rinne to experiment further.
She started with tentative flicks of her tongue tip, then used the flat of her tongue.
Her licking range expanded from just the shaft until her tongue finally grazed the smooth scrotum.
"Ah."
This was a pleasure only those experienced could appreciate.
Somewhere between ticklishness, comfort, and ecstasy.
The first time he'd received ball play, he'd been shocked at how good it felt—rivaling full fellatio.
It made perfect sense, really.
The scrotum was a genuine erogenous zone.
Having it lavished by a tongue far softer and more delicate than any man's was pure bliss.
Just to be safe, he'd warned her in advance.
"Master, absolutely no biting or sucking."
"Make it a command."
"Use just your tongue to lick."
"Slurp, slurp, slurp."
Confirming his reactions had grown more pronounced, Rinne grasped the shaft with her hand.
She lifted the balls firmly, then licked from the seam upward along the underside.
Her delicate nose and forehead occasionally brushed the underside, leaving saliva trails—potent mental stimulants in their own right.
"Slurp, slurrrp..."
The issue, however, was that the glans—where male sensitivity peaked—remained untouched.
At this rate, reaching climax would take an eternity.
As Rinne diligently serviced him, his cock throbbed massively.
Feeling a pull in his lower abdomen, Si-woo made a suggestion.
"Isn't this enough?"
"Not yet."
By then, Rinne had realized this method wouldn't produce the sounds from Dorothy and Si-woo's session.
No matter how far she extended her tongue and licked, that specific noise eluded her.
Maybe it required stronger sucking?
With doubt-filled eyes, she glared at the glans, then lunged and sucked hard.
"Guh!"
His cock, accustomed only to teasing licks that tickled like ejaculation control, was hit with intense stimulation.
Normally, Si-woo could've endured it.
His astral body boasted enviable stamina and restraint.
The problem was the potion.
Far from mere aphrodisiac, it acted like a premature ejaculation elixir; he couldn't adapt to the sudden shift and climaxed instantly.
It had taken just 15 minutes and 10 seconds.
Pop!
His cock burst from Rinne's mouth as he gasped raggedly.
Even a martial arts master like Rinne was a total novice at sex.
Her startled reaction unfolded in slow motion amid the surprise.
Splat! Splurt! Splurt! Splurt!
"Mmph?!"
A small yelp of shock escaped her pursed lips.
Semen sprayed wildly across her refined face, as if she were urinating.
Shooting out like a water gun yet thick and jelly-like, it clung like a facial mask.
The volume was insane—easily two or three times his usual load.
He should've been more cautious.
Even diluted, Yebin's custom aphrodisiac was a magical elixir.
"......"
In mere seconds, Rinne's pristine face—once as clear as if freshly licked—was a total mess.
Semen splattered her red lips, nose bridge, rigid cheeks, bangs, and even part of her crown.
One eye was glued shut; the other barely open, with droplets dangling from her long lashes like butterfly antennae.
White blooms dotted her thighs and breasts where she'd clenched them.
The sight was intensely erotic, but now wasn't the time for detached admiration of the contrast between her black hair and the semen.
This was a super-emergency—he'd facialed his master without permission.
"......"
One of Rinne's frozen eyes pierced Si-woo with icy sharpness.
Having sticky, warm, fishy bodily fluid smeared on her face warranted fury.
To her, it was akin to being spat on repeatedly.
"What do you think you're doing?"
Inspiration struck.
He was already committed, like riding a tiger.
Since she'd braced for this, escalating the intensity and variety was inevitable.
This time, he had to make her truly regret it.
Thus, brazenness—utter brazenness—was the way forward.
Hesitating and playing her game might not get him through the week until Dorothy returned with intel.
"I wanted to cum on Master's face."
"You insolent..."
Rinne faltered, brain-fried by her absurd disciple's gall, but as comprehension dawned and she bared her teeth—
"You commanded me to, so I assumed you'd resolved to cater to my tastes."
"......"
"You saw how my mana amplified with Dorothy yesterday, so you must know what's required."
"......"
"Realizing your usual approach wouldn't trigger mana amplification, you donned stockings, offered oral, and issued commands... I took it as fully tailoring to my preferences. My apologies if I misunderstood."
To Rinne's ears, Si-woo's words rang true.
She'd anticipated a degree of this from the start, hadn't she?
Instead of raging, she snapped her fingers, flinging the clinging fluids from her hair and face.
"...So, did it please you?"
"Yes."
"I can't comprehend tastes like yours... But do as you like."
She wouldn't indulge him like Dorothy, but she'd try accommodating his preferences as much as possible.
She resolved to attempt it exactly three more times.