Still walking arm in arm with Jinwoo, Sohee notices Jinwoo's still rigid cock and, standing in front of the park restroom on the way home, she says, "You sure you're gonna be okay like that?"
"Huh?"
"Coming into the house with me, if you're standing out like this, mom's gonna think it's weird, you know? Honestly, you can see it even through your clothes."
Having been on the verge of bursting since earlier, even Sohee, who had been teasing him, now had a face flushed with the absence of smiles.
Jinwoo thought it wouldn't matter if his mom saw, -probably wouldn't get scolded- but more than that, he was desperate to handle his current urgent need to release.
For a while now, Jinwoo's eyes had been fixed on Sohee's massive breasts, which were crushed against his arm.
"I feel kinda bad that it's because of me, but you're staring too hard at my boobs right now, aren't you?"
Without responding, Jinwoo turned his eyes away then sneakily glanced back at her boobs, breathing hot and rough.
Seeing Jinwoo like this, Sohee says,
"I'll be waiting, over there."
Sohee points towards the restroom with her finger.
It was an awkward situation since twice a day, his own sister was considerate of his masturbating schedule, but Jinwoo was too excited right now to care about that.
Jinwoo goes into the men's restroom.
After parting with his sister, he feels calm enough to catch his breath.
Both stalls in the restroom were out of toilet paper.
It's not impossible to finish without toilet paper, but Jinwoo knew from experience that it would be messy.
He goes out and asks Sohee,
"Hey, do you have something like toilet paper?"
Jinwoo couldn't look Sohee in the face as he spoke.
"No, isn't there any inside?"
Sohee, looking pitiful, responds.
"Uh... yeah... okay..."
Jinwoo, about to give up and go back in,
"Just wait a sec."
Sohee then calls Jinwoo to stop him and enters the women's restroom.
Thinking she went to get toilet paper, Jinwoo waits gratefully.
Soon, Sohee comes out and slips something into the pocket of Jinwoo's school uniform pants.
"Use this for now and come back."
Her voice somewhat shy,
Jinwoo enters the restroom.
He reaches into his pocket in the stall and feels a small, damp piece of cloth.
Pulling it out, it turns out to be Sohee's beige panties.
Jinwoo's face flushes and a tingling sensation rushes to his cock.
Standing outside, Sohee is currently skirted with nothing worn underneath.
Furthermore, the front of the panties is slick with wetness.
Her vaginal fluid,
He brings it to his nose and smells.
A slightly tingling pleasant smell of his sister's groin overwhelms him.
He pulls out his smartphone and opens a photo of Sohee sent by Daeho.
Looking at her photo, Jinwoo wraps his cock with the slick panties.
Standing in front of the restroom, Sohee waits with nothing underneath, knowing full well Jinwoo is masturbating.
He imagines forcing his massive cock into her wet pussy.
Pinned down, overwhelmed by his massive cock, Sohee shakes uncontrollably, her huge breasts swaying, moaning distortedly from pleasure, a bitch trembling.
Jinwoo flips past her photo to a picture of Aunty Gyuri, taken in her teens.
With lascivious eyes, teen Aunty Gyuri opens her mouth wide, filled with semen.
He flips back to Sohee's photo, fantasizing as he just did.
Sohee, mouth open, taking Jinwoo's semen into her mouth, her pleasure-soaked eyes looking at him.
A strong premonition of what will soon happen, Jinwoo, enveloped in intense excitement, ejaculates into Sohee's panties.
* * *
After finishing, Jinwoo goes outside.
Sohee stands turned away from the entrance of the men's restroom, her face flushed.
Jinwoo approaches and lightly taps Sohee's head as if petting her.
Startled, Sohee turns around and gives a surprised but not displeased 'Ha-' laugh, "Make sure mom doesn't catch you and put it in the wash."
"Got it, but are you okay with that? Doing this with your underwear?"
As if confirming her approval again, Jinwoo asks.
Sohee looks squarely at Jinwoo and responds, "You're really funny~ Didn't you take my panties this morning? Didn't you use those?"
"Oh... you knew?"
Jinwoo, taken aback,
"Did you think I wouldn't know? Minji probably knows all about it too~"
Though Sohee's last remark was a bit worrying, the new masturbation experience with Sohee's help left Jinwoo feeling satisfied and proud as they headed home together.
* * *
"Mom~ I'm home~"
Sohee and Jinwoo enter the house.
"Why are you two together?"
Mom looks out from the kitchen as she speaks.
"We met up front."
Sohee, acting as if she wasn't being stalked or as if he hadn't been her secret bodyguard, casually tells mom.
"Really? Change your clothes and wash your hands. I've washed some strawberries."
Mom's voice sounds as cheerful as usual.
"Okay, I'll be down soon."
Sohee and Jinwoo then head to their respective rooms.
When Jinwoo enters his room, he finds that the floor has been cleaned.
The panties Sohee had used that morning and the mess on the floor were neatly cleared away.
It felt as though mom had acknowledged him as a male in the house, a feeling of pride and satisfaction washing over him.
Mom had cleaned up after his mess without saying a word, pretending not to know.
What does mom think about this?
Acting like a normal mom despite her son's indecent acts.
It seemed like she was enjoying it at night without consciousness, and although Jinwoo realized this, the act continued.
Mom, as well as the entire family, seemed to harbor lustful thoughts, and she didn't get mad even when he touched her ass during the day.
It was as if such incidents never happened, making Jinwoo look forward to the nighttime violations even more.
How far would mom tolerate her son's indecencies?
Could mom possibly share the same inclinations as Aunty Gyuri?
Jinwoo wanted to find out.
He opened a photo of Aunty Gyuri that he had promised never to show anyone else.
Aunty Gyuri in a yoga pose, her upper body pressed to the ground in a cat position, with Jinwoo's hand placed on her propped-up ass.
How would mom react if she saw this?
When he was doing this with Aunty Gyuri, the thought of being caught by mom and getting scolded had him anxious as if he would die, but now Jinwoo strongly hoped that mom would see this photo.
He wanted to see her reaction.
Jinwoo took a deep breath and sent the photo of Aunty Gyuri to mom.
The '1' next to the photo disappeared.
'?'
A question mark appears in mom's response.
"It's Aunty Gyuri."
Jinwoo adds an explanation.
For a while, mom said nothing.
Waiting Jinwoo.
After about thirty seconds.
"When?"
She texts, asking.
"When I went to borrow the eye mask."
Jinwoo replies immediately.
"Did you?"
Mom's question, the subject omitted.
Clearly, she was referring to sex.
For the first time in their post-evening chats, questions were coming from mom.
Jinwoo felt his body heat up, his pulse racing.
"Not yet."
Jinwoo replies to mom.
"Okay."
Mom's response was calm, as if she understood.
Jinwoo then asks mom.
"Aren't you mad?"
Mom is silent for a moment before replying.
"Not mad."
Jinwoo feels an overwhelming sense of relief and comfort at mom's response.
"Thanks, see you later, mom."
Jinwoo's message.
"Okay."
Mom's succinct reply.
Just this short exchange with mom left Jinwoo's body trembling with excitement.
"I want to cum in mom's mouth, on her breasts, inside her."
"I want to subdue mom as a woman."
This was the pure desire Jinwoo had towards his mom at that moment.
* * *
Reflecting on the conversation he had with mom, Jinwoo recalls a file that Sinbi noona gave him at the dessert cafe earlier today.
-Emphasizing it was for his eyes only-
The reward for correctly guessing 'S E X'.
Jinwoo opens his smartphone and views the file sent by Sinbi noona.
It contained a photo of the inner thigh of a plump, well-shaped white woman he seemed to have seen a few times before.
The secret flesh of Sinbi noona's inner thigh was exposed, with 'S H Y' written in the sensitive middle part of her inner thigh.
Familiar English initials.
Jinwoo immediately recognized that it was Sohee's...
That is, Yu Sohee's English initials.