Chapter 1 – Prologue. Ordinary Daily Life (1)

Siwoon is a male college student attending K University. And today, he stayed in college for a few more hours after class because of group work, a common enemy of all college students.

“Hehe, but it looks like only normal people gathered this time.”

“I know. Well, you’ll know that only when you start.”

His best friend Eunhyuk answers Siwoon’s words. Certainly, allocating responsibilities to each team member and making plans for the future went smoothly without any problems, but who knows what extraordinary things will happen in the future.

Fortunately, my friend Eunhyuk is with me this time, and I know that the other three have excellent grades even though they are not close to me, so I have no choice but to place my hopes on that.

Anyway, after leaving the university, it was already almost evening, and today was Si-woon’s birthday, so Eun-hyuk put his hand on Si-woon’s shoulder and spoke kindly.

“Then, I’m hungry. Should we go get dinner? “It’s your birthday, so I live today.”

“Thank you for your words, but I got a call from home. “I’ll prepare something delicious for you, so come right away.”

“Hmm?”

Eunhyuk tilts his head when he remembers that Siwoon’s parents are divorced and his mother lives separately, but he soon pretends to realize it and says.

“Ah~ Sister Seha?”

“Then who would it be?”

Se-ha’s older sister refers to Park Se-ha, Si-un’s childhood friend who has lived next door to him since he was young and is like his own older sister. Thanks to this, Eunhyuk heard her story well and even met her several times in person. But he asks because he hasn’t heard anything about his cooking skills.

“But Seha, are you good at cooking?”

“Well, I’ve been doing it since I started living separately from her mom. “It’s at a very high level now.”

“Ah, I’m jealous. Why don’t I have a sister next door who is pretty and good at cooking? I’m so jealous.”

“If you’re jealous, move to our neighborhood. Anyway, then I’m going~”

“Are you coming?”

When Si-woon spots the XXXX bus coming near her house from afar, he shakes off his envious best friend and runs out.
And as he rides the bus for about 40 to 50 minutes, and then gets off the bus and walks for another 10 minutes, his heart is pounding with anticipation. Just now, she spoke to Eunhyuk as if she were being calm, but she actually felt like bragging.
And when she arrives in front of a rather nice two-story single-family house, Si-woon immediately presses her number key and goes inside.

“I’ve been there~”

– Creak~ Creak~ –

However, although there is a clear sign of popularity in the living room, there is no response to greetings. So, just in case, Si-Woon quickly took off her shoes and ran inside her entrance, where the scene unfolded as expected.

“Ah, did Siun come? Look, good luck has come.”

Se-ha is naked on the sofa in the living room, without a single cloth on, and climbs on top of a man who is also naked, and greets Si-woon. Then, she turned her head and spoke slightly resentfully towards the man overlapping her, and the man pretended not to notice and greeted Si-woon.

“Welcome, my son.”

While lying on the sofa and greeting his son, Si-un, he raised Se-ha with his lower body, and each time, his penis moved in and out of Se-ha’s vagina with great force.
Then Si-woon sighs as he sees his father and the older sister next door welcoming him with sex.

“Why are you two doing this in the living room instead of the master bedroom?”

“Sorry~ the air conditioner in the bedroom is broken. Hi?!!!”

– Squeak~ Squeak~ –

Se-ha answers with an embarrassed laugh, but when Do-hyeon, Si-woon’s father, takes advantage of that moment and raises his lower body, his voice becomes distorted in surprise. And to put it in vain that they had gone out to the living room to find an air conditioner, their bodies were already covered in sweat from intense sexual intercourse.

And Si-woon scans Se-ha’s sweat-soaked body up and down and swallows his saliva.

‘You’re really fucking pretty.’

It’s not that Si-woon’s eyes are not in a good mood, but objectively speaking, Se-ha’s body is considered to be exceptionally beautiful. Moreover, now that she is in a heated state after being quenched by Do-hyeon, her beauty looks even more doubled.

Her slightly pink, flushed skin is even more glossy due to sweat, and her short hair is also wet as if she had just taken a shower. And even though he looks like he’s going to leave at any moment, he manages to come to his senses and stretches out his arms to Si-woon and says.

“Go up for a moment… Ugh! Ugh… Do you want to go up? Since everything is prepared, all you have to do is cook the meal right away. Soon… Sigh! Well, it’s over soon.”

“… Yes.”

Shiwoon nods her head as he holds her trembling hand. Si-woon has had a lot of skinship with Se-ha and held her hand a lot since she was young, but now that she is in the middle of sex, she seems to hold her tighter than usual. Moreover, every time Seha’s body moves up and down, every time he breathes heavily, and every time his genitals move in and out, the vibration and heat are transmitted to Siun through those hands.

– Excited! Exciting! –

So Si-un’s heart is also excited and racing, but she wants to feel more of this heat and vibration, so she deliberately looks toward her kitchen and drags her conversation further.

“But what did you do with the food?”

“…”

But she can’t answer because she doesn’t have time to spare. And as Dohyun’s movements become faster, she tightens her grip between her legs and presses her buttocks, barely able to get her words out.

“Sorry, I guess I’ll have to go now, so I’ll just focus for a moment.”

“… Okay, then I’ll go up.”

As it stands now, she can no longer hear herself. Si-woon, who already knows this from several experiences, lets go of her hand and heads to her room on the second floor.
However, the moment Si-woon puts her foot on the stairs, she lets out a harsh sound as if Do-hyeon and Se-ha are reaching climax at the same time.

“Sehaya! Let’s go!”

“Huh! Uncle, me too… Ugh… Just cum inside!”

“Whoosh!”

“…”

Si-woon, who heard the sound, takes a quick look at the two people. However, Seha’s body is not clearly visible because it is completely reclined because it is covered by the sofa, and only her two breasts are visible, rising above the backrest of the sofa, with her pink nipples shaking.

And soon, as the heavy breathing of the two of them subsides and even her chest sinks out of sight, Si-woon quietly turns on her feet and goes up to her room.