City ​​of Witches 684

## Chapter 684 – #138_The Teacher’S Challenge (3)

#684

1.
Sex is good.
Whether it’s front or back, isn’t it a biologically designed act to make you feel good?

But even if it feels good, there are situations where you’d rather avoid it.
For example, if your immediate safety and the difficulty of your future life depended on sex, you wouldn’t just be able to happily wiggle your hips.

So, I’d like to stop this nerve-wracking sex where it’s a toss-up whether my magic amplification will be exposed or not.

Rinne, oblivious to Siwoo’s feelings, was on all fours on the tatami mat, her rear end raised.
It was the same position Dorothy had been in last night when Rinne sensed the magic’s fluctuations and barged in.

“Now, put it in.”

Rinne, who had never allowed any position other than standing, even when giving her rear.
Wearing only pantyhose on her naked body, not getting angry even when she was given oral sex or when I came inside her, and even kneeling on all fours like a defeated female.

“……”

Siwoo, knowing the resolve and desperation hidden within her, couldn’t help but tremble with anxiety.
He could feel that he was only a few steps away from being forced to ejaculate inside her.

So, Siwoo thought.

If Rinne had chosen a method that would make her listen to Siwoo’s request.
He would inflict upon her a level of shame she couldn’t handle.

As we can see from the example of Dorothy, who was once a strong figure, Siwoo has never lost a battle in bed.
Normally, even Rinne, who boasts a seemingly solid fortress, could be made to flounder in a swamp of humiliation and pleasure, but…

There was a big problem here.

It was none other than Rinne’s own peculiarity.
She doesn’t feel pleasure, and this is a serious matter.

Siwoo’s bed fighting is strong because he can freely control the carrot and the stick.

However, Rinne’s powerful frigidity completely blocks the carrot called pleasure.

In other words, he has to use only the whip while playing in a way that breaks Rinne’s will…
There’s no guarantee that Rinne won’t go ballistic in the process.

So, the point is to walk a fine line, not touching Rinne’s reverse scale, but only breaking her will.

“What are you doing?”

Rinne, who had been kneeling for a while without any action, turned around and asked.

“First, you need to take off your stockings… Ah.”

Let’s slowly start the engine.

“You’re going to do as I say today, right? Otherwise, you won’t be able to trigger the magic amplification.”
“…That’s right for now.”
“You’ve decided to follow my orders today?”
“Yes.”
“Then, before you put it in, tear them yourself.”

-Rip!

Rinne tore the crotch of her stockings more readily than expected.
The scene that followed was more suggestive than expected.

Through the blurry, thin mosaic, the plump pussy flesh appeared.
The brand-new pussy that has never been used and the rear pussy that has already been experienced several times are clearly visible.

The buttock flesh that had slightly protruded from the pressure of the stockings looked even more delicious than when it was completely naked.

“I did it.”
“……”

My saliva goes down at the sad, simple male instinct.

“Now, can you spread it wide?”
“Spread?”
“Hold your buttocks and let me see every inch of your private parts, especially around your butthole.”
“……”

As expected, Rinne’s movements stop.

I intentionally used expressions that would make her feel ashamed.

For a woman to have to spread her vulva wide open is a situation that would naturally cause shame.
Especially for the refined Rinne.

Rinne’s hand, reluctantly extended, grabbed her buttocks and gently pulled them apart.
Displeasure dripped from her delicate fingertips.

-Crack

In that gap, the dry lips made a dry sound again, and the pussy mound that had been tightly closed was opened.
The back hole, which I had never been able to fully appreciate, also revealed its calyx.

“Is that all you can spread?”

A physical reaction that Rinne usually shows when she gets angry.
Reflexively looking for a sword, shooting a sharp gaze, or twitching her eyebrows.

“……”

But now, Rinne was facing forward.
Therefore, she revealed her anger with a completely different movement.

-Twitch!

The back hole, which was not concealed by the stocking mosaic and the buttock groove, tightened and loosened strongly.

Is it because of the unnecessarily effective aphrodisiac?
Rather than being scary, I only have strange and somewhat lewd thoughts like, ‘So, has Rinne been putting strength into her back hole every time she’s been angry?’

“You spread it more.”
“More. Your pussy isn’t spread properly.”
“……”

Finally, Rinne spread both holes wide open.
Two pieces of mochi fell apart, exposing the bright red inner membrane.
The milky membrane that could be seen vaguely through it clearly proved Rinne’s purity.

“Stay still in this position.”

-Grind

Rinne silently endured the humiliation and bit her teeth so hard that they were about to break.
She repeats her obsession, close to fanaticism, that she will do anything for strength, and tries to maintain her posture.

So far, she had only shown her naked body or offered her back hole.
The former didn’t bother her much, but the latter was a shameful thing even by Rinne’s standards.

The growth of Tiferet, the magic amplification that might be the catalyst.

She had endured all sorts of insults to induce it.

But as soon as she handed over the reins of the relationship to Shin Siwoo, the level of intensity rose sharply.

Even for Rinne, who has a weak sense of sexual concepts and no awareness of sexual pleasure itself.
The act of showing both holes wide open is a very unusual and perverted act.

It was incomparable to simply giving up her body.
No one had ever treated Rinne like this before.

“Hmm… Teacher, you’re really pretty.”
“……”
“Both front and back.”

Shin Siwoo’s breath touches her open vulva.

Rinne glanced back and realized that he was observing both holes with his face so close that she could feel his breath.

Let’s stop.
It was all useless.
Let’s look for another way.

The moment Rinne thought so and tried to get up.

-Squish

Something soft brushed against her vulva.
From the clitoris, it swept through the inner membrane of the open vagina and up to the back hole.
It crawled up slowly and stickily, like a slug, leaving behind a sticky fluid.

-Slurp, squish squish

“What the hell…”

Rinne was bewildered by the rough breath that brushed against her buttocks.
She thought it was just a finger swipe.
She never imagined that he would bury his face in her rear and push his tongue into her anus.

Once the tongue went up to the buttock groove, it poked and pried open Rinne’s back hole as if a tentacle was digging in.

“Ugh…”

Rinne’s face contorted strangely at the indescribable, bizarre sensation.
Since Rinne doesn’t feel pleasure, it was certainly not because she felt good.

She just felt a surge of revulsion, like when a slimy bug crawls into her clothes.
It was exactly as Siwoo had hoped, but.

“Stop it right now.”
“Huh? It was just getting started?”

Rinne couldn’t stand it anymore and got up.

She had already endured a lot.

She had tolerated oral sex, giving orders, having semen splattered on her face, and even accepting things while crawling like a dog.
She was even willing to tolerate being spanked on the buttocks.

But this was not it.

She knew about this unruly disciple’s bizarre obsession and perversion towards the back hole.

But to think that he would not only put his dick in that dirty hole, but also his tongue.
That was far beyond Rinne’s common sense, and at the same time, it was completely contrary to her sensitivity, which could endure almost anything.

“How dare you do such a dirty thing…”
“Dirty? But you’re a witch, Teacher.”

Siwoo responded shamelessly and slyly.
His voice was similar to when he was dealing with Dorothy.

Then, is Rinne exciting him like Dorothy is now?
Was she doing a good job?

Rinne’s eyes, exposed to utter confusion, trembled unlike her usual self.

“Yes, it is. But it’s still a dirty thing.”
“You’re being too picky for someone who said they’d do as I say, aren’t you?”
“……”
“You’ll have to work hard to satisfy me with your weak body, Teacher. I’m doing you a favor.”

Rinne closed her eyes at Siwoo’s mockery.

The pure magic that filled Dorothy’s whole body when the magic wave was created was no ordinary thing.
It was a miracle that only Shin Siwoo could perform, and it was the reason why Rinne decided to ‘try’.

She couldn’t give up like this.

“Hoo, I understand. Do as you wish.”

Rinne knelt down again, just like before.

“I’ve got a good idea now that I see you’re shy, Teacher.”

Rinne sensed something ominous in Siwoo’s mocking words.

“I was going to do you a favor, but you refused. I want an apology and compensation for that.”
“…What is it?”
“I want to feel good, so please beg me to lick your dirty hole. By the way, that’s an order.”

An order that made her head spin.
Dorothy was actually forced to say such lines.

“I, I want to feel good… So, my, my, my…”

Rinne’s lips mumbled.
It was shocking to watch from the side, but the shame made her brain burn when she tried to say such vulgar words herself.

The scene that came to mind at that moment was the rain.
The gray scenery that she could never forget.

Life does not forgive weakness.
The weak cannot protect anything.

Then, now that there is nothing left to protect.
Why is she struggling for strength, sacrificing her life?

The answer was always one.

Because that’s the only thing that gives her a sense of reality.

Rinne, who had straightened her almost broken will.

In a way, it was a procedure according to plan.
Rinne is now unbearably ashamed, and Shin Siwoo is enjoying watching Rinne in that state.

If she endures a moment of mockery, a reward for reaching a higher level awaits.

Rinne’s heart, which had been boiling with all sorts of random thoughts and worries, calmed down.
If what she was feeling was pleasure, there would have been even the slightest bit of disarray, but.
That was just a hypothesis that was different from reality.

“I want to feel good. I beg you to lick my dirty hole.”

Siwoo was speechless at Rinne’s calm declaration, which did not feel even a little bit seductive.

“……”

Is she really doing this?
Is Rinne, who is the epitome of pride, really going to grant this request?

It was just a moment, but it was as if he could see the future.
A precarious future where Rinne, who had overcome all sorts of perverted acts, would eventually receive Siwoo’s magic amplification.