Building a friendly family 41 (Sehee)

41

“Noona, what time are you planning to go to the department store today?”

Shi-woo was asking Se-hee Noona, who was showering, while pleasuring himself with Se-hee Noona’s panties.

“Hmm~ I’m going to leave around 11, so get ready~”

Se-hee Noona’s answer came from beyond the opaque sliding glass door of the bathroom.

As usual, when Mom was home, it was taboo for Shi-woo to even enter the dressing room when Se-hee Noona or Se-young were showering.

A situation where the rules of Shi-woo’s house, which had been implicitly and strictly observed, were crumbling insignificantly.

The natural conversation with Se-hee Noona was a great stimulus for Shi-woo.

Shi-woo spread the vaginal fluids from Se-hee Noona’s blue striped panties evenly over his stiff penis.

The slippery feel of Se-hee Noona’s vaginal fluids and the soft texture of the fabric.

Shi-woo was now wrapping Se-hee Noona’s damp panties around his huge penis, rubbing it up and down to create friction.

A honey-sweet and subtle pleasure seemed to spread from Shi-woo’s thing throughout his body.

“Are we going out for lunch?”

Shi-woo deliberately struck up a conversation with Se-hee Noona while pleasuring himself, just to hear her voice more.

“Yeah, Noona will buy you lunch~”

Se-hee Noona couldn’t have failed to notice Shi-woo’s traces, which had been poured all over her clothes in the basket, and the male scent of Shi-woo filling the dressing room before she went in to shower.

It would have been awkward to have a conversation with her younger brother, who had just finished pleasuring himself, with only a glass door between them, but Se-hee Noona continued the conversation as if nothing was wrong.

Se-hee Noona also knew that her nude body was being shown to Shi-woo like a silhouette through the sliding glass door.

The joy of the tacit understanding of the deviant behavior they were sharing seemed to be dulling Shi-woo and Se-hee Noona’s rational thinking about reality more and more.

**

“Shi-woo, you haven’t been to the aquarium in the department store yet, have you?”

“No, I’ve never been there. Have you been there, Noona?”

“I’ve been there a few times after school~”

“Alone?”

“No~ with my friends~ The atmosphere there is really nice, you know?”

“Really?”

“Yeah~ I think we can have lunch, watch a movie, and then stop by the aquarium before going home. We have plenty of time, so we can look around for shopping too~”

Se-hee Noona was briefly explaining the schedule she would be spending with Shi-woo today.

**

As Shi-woo continued to pleasure himself while talking, he imagined Se-hee Noona’s voluptuous movements of bending over or crouching down beyond the opaque glass door, and imagined her swimming naked in the aquarium.

“Se-hee Noona~ is that thing you were going to do with Shin-bi Noona going well?”

Shi-woo brought up the conversation that Shin-bi Noona had come over and the two Noonas had seemed to exclude him from.

“What? What are you talking about?”

“I’m talking about when Shin-bi Noona came over and we ate ramen together. Was it about dieting?”

Shi-woo knew what the Noonas were talking about from Shin-bi Noona, but he pretended not to know and talked to Se-hee Noona as if he was testing her.

“Oh? Ah~ yeah, well~.”

Se-hee Noona answered as if she was trying to gloss over something.

She seemed to have roughly understood what Shi-woo was talking about.

Unlike when she was prickly with Shi-woo, Se-hee Noona’s attitude towards him had become much gentler.

**

Shi-woo momentarily imagined having sex with Se-hee Noona to help her diet.

He stretched out Se-hee Noona’s wet body, which had just been pulled out of the aquarium water, and laid her face down, then climbed on top of her from behind and shoved his penis into her vagina as if raping her.

Then, he started pounding her relentlessly without stopping, as if pressing down on her.

Coercive and violent sex of humiliation.

When he imagined Se-hee Noona’s moans being squeezed out from under Shi-woo’s body, he felt a tingling pleasure vibrating and stirring through his body, as if he was about to cum.

“Noona, you don’t need to lose weight right now~ You look so good?”

Shi-woo said, fixing his eyes on the outline of Se-hee Noona’s body visible through the opaque glass.

At the same time, he increased the speed of shaking his thing.

The sound of flesh hitting flesh in his crotch began to be heard, barely.

Tak.!

Tak..!

Tak…!

Se-hee Noona, who had been silent for a while, opened her mouth.

“I gain weight quickly if I let my guard down~

Mom always makes sure we eat well at our house.”

“Really?”

“Yeah, I can’t even think about dieting by starving myself because of Mom.”

Shi-woo smiled slightly at Se-hee Noona’s cute excuse.

Shi-woo remembered the dessert cafe in front of Se-hee Noona’s academy that he had gone to before.

-The lewd Se-hee Noona, who gives plausible excuses for giving in to temptation-

“So, are you going to do that diet with Shin-bi Noona?”

“I haven’t decided yet~”

“Is it really effective?”

“Well..? From what I hear from the kids who are doing it, it doesn’t seem that bad…”

“Do a lot of your friends do it?”

“Uhh.. yeah… But why are you so interested in me dieting?”

Se-hee Noona said to Shi-woo in a tone that suggested she was uncomfortable with his interest in the diet.

“No, I want to help Se-hee Noona if there’s anything I can do~”

“Ha- Do you even know what it is?”

Se-hee Noona asked Shi-woo, letting out a hollow laugh.

“Whatever it is, I’m doing it with Noona.”

Shi-woo said that while speeding up the hand holding and shaking his penis a little more.

Tak!

Tak!

Tak!

The sound of flesh hitting flesh, barely audible to Se-hee Noona, was echoing in the dressing room with increasing speed.

Shi-woo was pleasuring himself secretly, feeling anxious that Se-hee Noona might catch him, but on the other hand, he also had a feeling that he wanted Se-hee Noona to notice his self-pleasuring.

He had a vague expectation and conviction that even if Noona caught him, she wouldn’t get angry and would let it go, at least for today.

Noona was silent again for a while.

“I haven’t decided whether to do it or not yet~ I have to talk to Shin-bi more… And you can’t do it anyway, Shi-woo.”

Se-hee Noona said, drawing a line with Shi-woo.

“Why?”

“There’s a reason~!!”

Through the conversation with Se-hee Noona, Shi-woo was now convinced that the diet that Se-hee Noona and Shin-bi Noona were trying to do was the diet that Shi-woo knew about.

Shi-woo had written the word SEX on Shin-bi Noona’s palm and received confirmation that it was the correct answer and a reward for getting the correct answer, but in one corner of his mind, he had continued to harbor a doubt, wondering if it was really true.

Perhaps Shi-woo had wanted it not to be true.

Shin-bi Noona was someone who could have played such a prank on Shi-woo.

“I don’t think I’d mind?”

Shi-woo said again, as if testing Noona.

“Ha- Shi-woo, do you even know what it is?”

Se-hee Noona said to Shi-woo, laughing hollowly again as if she was dumbfounded.

“Anyway, I’m doing it with Se-hee Noona, so I think anything would be okay.”

Shi-woo was talking to Se-hee Noona, being conscious of sex.

**

Seeing Se-hee Noona’s panties soaked with vaginal fluids, Shi-woo realized that Se-hee Noona was reacting sexually to him.

He had been recognized by Se-hee Noona as a male.

In that situation, he could not tolerate Se-hee Noona having sex with another man instead of him.

Shi-woo forcefully stroked his penis, giving it strength as if showing off to Se-hee Noona.

Squeak Tak! Tak!! Tak!!! Tak!!

The dressing room was once again filled with the sound of the shower from the bathroom and the sound of Shi-woo pleasuring himself.

Se-hee Noona must have been feeling something too, as she was now silent and motionless.

Se-hee Noona, naked, listening to her younger brother’s self-pleasuring sounds while being hit by the shower water.

A period of silence.

Soon, Shi-woo felt like he was about to cum.

He noticed the shell-shaped green bra he had seen earlier among Se-hee Noona’s clothes placed on the side table.

Shi-woo quickly picked up the green bra and brought it to the front of his glans.

Then, he looked at Se-hee Noona and did the final, climactic piston movements to cum.

Tak Tak Tak Tak Tak~!!

“Ugh… Ummm Haa~”

Shi-woo started to cum, making moaning sounds.

He ejaculated a lot of his semen into the shell-shaped green bra that Se-hee Noona had worn.

A refreshing second ejaculation without guilt, shame, or a sense of futility.

Judging from the fact that Se-hee Noona had taken off her bra and put it on the side table instead of in the laundry basket, it seemed like she was planning to wear it again after showering.

What kind of reaction would Se-hee Noona show if she saw that Shi-woo had ejaculated on her bra that she had taken off for a while to wear?

Shi-woo carefully put Se-hee Noona’s bra into the laundry basket.

Then, he came out to the living room without saying anything, as if nothing had happened.

Shi-woo was trying to start another day like that.