Chapter 391 (Shin-bi)
Translator: RaidenTL
Chapter 391 (Shin-bi)

(Shin-bi Noona)
"...That... that day?"
Shin-bi Noona asked back, reacting to Si-woo's question as she endured his caresses.
"The day of the group blind date. The two of us left the private room cafe early. After that, I put you in a taxi and sent you home... then I went back to the cafe because of Se-hee Noona..."
Si-woo spoke as if to remind her of everything that had happened that day.
"Oh... that day... thanks to you putting me in that taxi... I got home safely."
Shin-bi Noona answered awkwardly, as if the memory had suddenly resurfaced.
Si-woo turned her toward the bed and moved the hand that had been gripping her butt toward her groin.
As his hand touched the front of her groin, Shin-bi Noona reflexively flinched, pulling her waist and pelvis back.
Si-woo pressed his own pelvis against her backside, preventing her from retreating any further.
His massive cock shaft slotted perfectly into the crack of her buttocks.
Feeling her panties, which were already damp with moisture, Si-woo continued.
"I heard from Ye-na that you made it home okay, but..."
He casually mentioned Teacher Oh Ye-rin’s name without any honorifics, as if testing the waters.
"Ah... right... she... she said that?..."
Shin-bi Noona reacted tensely to hearing him speak of Teacher Oh Ye-rin so familiarly.
"Ye-na is your aunt, right? When I went to the academy for counseling before, Seul-gi told me that."
Si-woo asked the question to clearly confirm the relationship between Teacher Oh Ye-rin and Shin-bi.
"S-Seul-gi did? Haah... th-that's... yes... th-that's right... she's my aunt..."
Shin-bi Noona answered as if troubled by both his question and his actions.
Meanwhile, Si-woo pressed down on her pubic bone with his palm and ground his pelvis against her ass.
Pleasure spread through her, as if being squeezed out by the pressure of his cock shaft.
"Did you hear from So-ra or Se-hee... about what happened after you left?"
Si-woo asked, seemingly trying to confirm exactly how much she knew about the situation that day.
"Yes... I-I heard... that you... and the older guys... got into a fight and went to the police station..."
Shin-bi Noona answered while her buttocks and groin were being crushed by Si-woo's cock and palm.
"The moms came to pick us up from the station... and instead of an aunt, your aunt came to pick us up as our guardian..."
Si-woo spoke to her as if explaining the events of that day.
"Isn't it strange? Unless they're family or a direct guardian, it's not easy to take custody of kids who are held at a police station for causing trouble..."
Si-woo spoke as if raising suspicions about the true identity of Teacher Oh Ye-rin, who had taken custody of them as a representative despite not being a blood relative or official guardian.
"......"
Shin-bi Noona remained silent, closing her mouth as if she were being cautious about answering his suspicions.
Si-woo applied pressure with his fingers over her thin panties, forcing the fabric and his fingers into her fissure.
His middle finger, along with the wet front of her panties, buried itself deep into her slit.
"Haaah... Si-woo... w-wait a second..."
Shin-bi Noona writhed, flinching as if trying to stop his aggressive movements.
Si-woo pulled his hand away from the triangular valley of her panties.
—Slap!
He raised the hand he had just pulled away and delivered a sharp blow to her buttocks.
"Agh!"
Shin-bi Noona let out a pained moan, startled by the impact.
"Get on the bed and face down on your hands and knees!"
Si-woo commanded in a low, overbearing voice.
"Si-woo... I... this is... my f-first time..."
Shin-bi Noona spoke in a pathetic voice, as if pleading for him to be gentle.
—As if, when you've already been rolling around, sucking and licking with Se-hee Noona...—
"Get on the bed! I said face down on your hands and knees!!"
Si-woo repeated the command dryly, completely ignoring her plea.
"Haaaaah..."
Shin-bi Noona let out a long, sorrowful sigh at his stubborn command.
Soon, as if she had no choice, she climbed onto the bed and got into the prone cat position.
There she was, on all fours, wearing nothing but her bra and panties.
Her voluminous breasts swayed beneath her bra, which had been pushed upward.
Her buttocks and the wet fissure of her groin were barely covered by the thin, tiny scrap of fabric.
As if trying to match the state of her pushed-up bra, Si-woo pulled down the panties covering her ass and groin.
The thin fabric caught around her thighs, just below her buttocks.
Her snow-white ass and neatly groomed groin were exposed.
Like a piece of installation art meticulously arranged, her bra and panties were shifted just slightly away from where they should be.
Shin-bi Noona's body trembled with shame.
Her twitching, tensed buttocks and her downward-dangling, swaying breasts made Si-woo's cock even harder.
Si-woo climbed onto the bed and positioned himself behind her.
He lined up the tip of his throbbing cock with her split fissure.
Using his glans, Si-woo parted her labia, spreading them wide as if rummaging through them.
His cock, already wet with pre-cum, was further coated by her pussy fluid.
Pushing his pelvis slightly forward, he nudged the tip of his cock into her hole.
—Squelch!
Si-woo's cock entered the gap between her parted flesh.
At the tip of his cock, he felt a membrane-like obstruction blocking his path.
The fibrous veil that proved Shin-bi Noona was a virgin.
Feeling the tension of that membrane, Si-woo put strength into his waist and pushed his cock in until the very last second before it broke.
"Haaauuugh!"
Still face down, Shin-bi Noona moaned in agony, pressing her thighs together.
"Slap!"
Si-woo spanked her ass once more, telling her to relax.
"Haaah!"
Shin-bi Noona's body, supported by her hands and knees on the mattress, trembled violently.
Si-woo grabbed her waist with both hands, thrust his pelvis forward, and slammed his cock—which had been resting at the vaginal opening—all the way in.
—Pop! Snap!
The sensation of a membrane tearing traveled through the tip of Si-woo's cock.
—Squelch!!
Si-woo's cock pierced through the fibrous wall that had blocked him and surged deep into Shin-bi Noona's vaginal opening.
"Haaaaauuugh!"
Shin-bi Noona arched her back and upper body, molding herself to the shape of the massive cock entering her.
With about half of his shaft buried inside her, Si-woo waited for her tremors to subside.
"I was thinking to myself... what would have happened if I hadn't gone back to Se-hee after leaving with you that day...?"
As her trembling began to calm, Si-woo started talking as if to himself.
"I probably would have been having a great time having sex with you instead of Se-hee, without even knowing those guys had drugged her and were raping her, right?"
Si-woo was putting the thoughts that had been floating in his head into concrete words.
He intentionally used the phrase "instead of Se-hee" to let Shin-bi Noona know that he had indeed had sex with Se-hee Noona.
"Haaaaah...!"
Instead of answering, Shin-bi Noona gasped for breath, her vaginal opening tightening around him.
—Slap!
Si-woo struck her buttocks, telling her to release the tension in her hole.
"Agh!"
Her butt muscles tensed in surprise before she consciously and slowly relaxed her vaginal opening.
"When you brought those contraceptive pills, you knew then too, didn't you? That Se-hee and I had sex!!"
Si-woo was interrogating her as if he had found the thread that would unravel all her secrets.
"You knew everything, didn't you?! About the perverted things I did while Se-young was sleeping, and about me having sex with Mom! That's why you took Se-young and ran away to Aunt Seon-ju's house!"
Si-woo laid out his secrets, cornering her with his questions.
"......Haa......haa......haaa...."
Shin-bi Noona remained silent again, her breathing growing ragged.
"You knew about me having sex with Aunt Seon-ju and Cheol-jin's Mom too, didn't you? You must have been sharing everything on your smartphones."
Si-woo spoke as if dragging out the things she was desperately trying not to mention.
He followed up with question after question, demanding an answer.
"Huuu... huuugh..."
Shin-bi Noona let out a sobbing moan.
Her vaginal opening tightened once more.
—Slap! Slap! Slap!
Si-woo violently lashed her buttocks with both hands when she failed to answer.
"Agh! Ah! Haaah! I... I knew! ...It... it hurts! Ugh..."
Overcome by the pain, Shin-bi Noona blurted out the truth, her speech slipping into formal speech.
In that moment, Si-woo thought of Su-a, who had supposedly been trained by Aunt Seon-ju since she was a child.
As expected, it seemed Shin-bi Noona knew all the details about the secrets of Si-woo and his family.