"What did you do with my mom?"
Text from Jinwoo sent to Aunt Gyuri's smartphone.
Aunt Gyuri, lying down, picks up her smartphone and checks Jinwoo's text.
"?"
Aunt Gyuri, looking puzzled, stares at her smartphone for a while and then sends a question mark to Jinwoo.
-Slap!!
Jinwoo suddenly slaps Aunt Gyuri's butt with his palm.
"Heuh!"
"What kind of relationship do you have with my mom, Gyuri?"
Jinwoo sends another text.
Jinwoo waits for Aunt Gyuri's reply.
"We're just old friends, Jinwoo."
Aunt Gyuri quickly moves her hand to send a reply to Jinwoo.
-Slap!
-Slap!
-Slap!
Jinwoo's palm relentlessly hits Aunt Gyuri's butt again.
"Haah! Heuhng"
Aunt Gyuri lets out a sobbing moan as if she's about to cry.
Jinwoo pulls down Aunt Gyuri's leggings, which were halfway down her butt, to her mid-thighs.
Aunt Gyuri, now in a humiliating position as when she was tied to the sofa by Jinwoo.
Jinwoo looks down at Aunt Gyuri with a complex expression for a moment.
Jinwoo's question and actions seem hard to understand at a glance.
However, Jinwoo had some conviction that made his questions and actions possible.
**
Jinwoo had been thinking all the way to Daeho's house after school.
The stories about infidelity Aunt Gyuri shared with Jinwoo during sex.
Aunt Gyuri was already having sex with Jinwoo at that time.
Whether it was a secret affair for a day or an ongoing sexual relationship, there wouldn't be much difference if it were discovered by his mom.
From Jinwoo's perspective, everything was supposed to be kept secret from his mom.
But the nuance and atmosphere of Aunt Gyuri's stories were oddly different.
Infidelity wasn't acceptable, but a couple of times of sex seemed like it wouldn't be a problem even if his mom found out.
No, rather, Aunt Gyuri was talking as if she had already assumed that their relationship would be revealed to his mom.
And his mom's strange attitude that had been peculiar even before that.
The first time Jinwoo informed his mom about his misdeeds towards Aunt Gyuri was through a text message.
Jinwoo had sent a photo of him touching Aunt Gyuri's butt while she was doing yoga to his mom.
Jinwoo did it to gauge his mom's reaction, who had been accepting of his other misdeeds.
But his mom's response was very different from Jinwoo's expectations or hopes.
His mom only texted back with "When?" and "Did you do it?", observing the situation calmly.
His mom neither got angry about what Jinwoo did to Aunt Gyuri nor mentioned it even once afterwards.
As if it were a natural thing.
Even during the family gathering on Saturday, when Jinwoo was giving Aunt Gyuri a massage, his mom purposely moved to the kitchen.
In a situation where her son and her best friend might develop a sexual relationship.
Even after seeing Jinwoo give an almost erotic massage to Aunt Haeju in an erect state.
Even when Jinwoo sent a photo of him humiliating Aunt Gyuri during the massage, his mom only replied with one word, "Contraception."
Even in such a dangerous situation where Sohee, Minji, and Sua might come out of their rooms at any moment.
Despite the sexual misconduct Jinwoo had committed towards his mom, there were too many parts of his mom's attitude towards his relationship with Aunt Gyuri that he couldn't easily understand.
Thinking back, it was his mom who sent Jinwoo to Daeho's house to borrow a blindfold the first day he spanked Aunt Gyuri's butt.
Something he could have easily gotten from Daeho at school.
Even considering that Daeho had other errands and let Jinwoo go to his house alone, it's worth thinking if it was really a coincidence that Aunt Gyuri greeted him in yoga clothes.
Can all these situations be explained by the fact that his mom had a submissive tendency?
Ultimately, Daeho's meaningful words overheard on the school rooftop during recess.
The slave contract of Aunt Gyuri that Daeho found might have been influenced by Aunt Gyuri and her husband.
After long contemplation, Jinwoo finally reached a presumptive conclusion.
His mom and Aunt Gyuri shared some special status or relationship.
Aunt Gyuri was clearly seducing Jinwoo through Daeho.
At least, she intentionally let slip information about the slave contract to let her son and his friend Jinwoo know that she was a sex slave.
His mom would have known that Aunt Gyuri was seducing Jinwoo.
Not just knowing, but actively condoning or participating in Aunt Gyuri and Jinwoo's sexual relationship.
The broken promises of his mom were somehow related to the extraordinary events Jinwoo learned or experienced in this past week.
How they would affect Jinwoo's life…
Jinwoo now had to confirm each of those secrets one by one.
**
Jinwoo places his cock between Aunt Gyuri's buttocks, then slid it into the moist split beneath her groin.
Aunt Gyuri slightly lifted her pelvis, preparing to welcome Jinwoo's cock in front of her groin.
Jinwoo rubbed his large cock back and forth in Aunt Gyuri's slippery crack, then aligned the glans with her hole and pushed it in.
-Swoosh!
"Haaah!"
Aunt Gyuri's sensitive vaginal opening clamped tightly around Jinwoo's glans, extracting pleasure as if squeezing.
Jinwoo, with the glans resting at the entrance of Aunt Gyuri's pussy, kneels and picks up his smartphone.
He takes pictures of his glans lodged in Aunt Gyuri's groin.
-Click!
-Click!
-Click!
Pictures vividly capturing the junction.
Jinwoo immediately sends the taken photos to Aunt Gyuri.
-Ding!
-Ding!
-Ding!
The notification sounds and Aunt Gyuri picks up her smartphone to check the text from Jinwoo.
As she sees the picture of his glans lodged in her pussy, her vaginal muscles twitch in response.
Aunt Gyuri, focusing on the sensation of Jinwoo's glans embedded in her pussy, buries her face in her crossed arms holding the smartphone.
Aunt Gyuri, seemingly not ready to confess the truth to Jinwoo just yet.
Jinwoo sends Aunt Gyuri the most definitive and powerful evidence he has.
Aunt Gyuri's slave contract.
-Ding!
The notification sounds again, and Aunt Gyuri, shocked, checks the text with Jinwoo's glans still lodged in her pussy.
Several pictures of the slave contract documents had been sent from Jinwoo's smartphone.
Aunt Gyuri's vaginal muscles clamped around Jinwoo's glans rippled as if responding to the photos of the slave contract.
Jinwoo, intending to fully insert his cock into Aunt Gyuri's pussy, holds her waist firmly with both hands.
Pressing deep inside her pussy to a painful extent.
"Aaah!"
Aunt Gyuri lets out a long, sensual moan.
Jinwoo pulls back, leaving only the glans at the entrance, then pauses.
"Does it feel good here?"
Jinwoo asks Aunt Gyuri as if insertion and thrusting are part of the massage course, contrasting the tone of his text.
"Ah… yes~ it… it feels good… Jinwoo, there… Can you do it a little harder?"
Aunt Gyuri, burning with desire, urges Jinwoo with her eyes tightly shut.
"I'll go slow. We don't want a repeat of lunch, right?"
Jinwoo teases, recalling how he knocked Aunt Gyuri out with vigorous thrusts during lunch.
"Heuhng~"
Aunt Gyuri lets out a frustrated moan, wiggling her hips seductively.
Holding his smartphone, Jinwoo types a slightly different question and sends it.
"Gyuri, did you have sex with my dad?"
Aunt Gyuri, with her head buried, glances at her smartphone and checks the text.
"Haaah~"
Aunt Gyuri sighs deeply, troubled by Jinwoo's straightforward question.
Then, she slightly turns her buried head to nod at Jinwoo, letting him see.
Whether due to Jinwoo's undeniable evidence or wanting his satisfying massage, Aunt Gyuri seemed ready to answer Jinwoo's questions.
"Does my mom know?"
Jinwoo's question continues via text.
Aunt Gyuri checks the text and nods again.
"Does she know you're a slave?"
Aunt Gyuri, with her eyes tightly shut, nods.
Her vaginal opening tightens as her eyes shut tight.
Jinwoo's cock grows harder with excitement.
Jinwoo slips his hands under Aunt Gyuri's belly, wrapping her waist tightly against his.
Starting a fierce thrusting as if rewarding Aunt Gyuri for her honest answers.
-Swoosh!
-Swoosh!
-Swoosh!
"Aaah! Aaah! Ahh!"
Aunt Gyuri's moans intensify.
Her vaginal muscles felt like they were burning inside.
Jinwoo's strokes were vigorous, then he would pause with the glans resting at the entrance.
"Haaa~"
Aunt Gyuri's breath sounded regretful.
As Jinwoo disciplined Aunt Gyuri with piston-like thrusts, he continued his questions via text.