Chapter 6 ☆ Noa, who had various experiences in her first ‘class’, immediately approached her older brother in underwear.
Even after the girl wandered back to her home, she kept remembering today’s events over and over again.
For the first time in her life, she was in a room with a man other than her brother, she was able to show her skin, her breasts, the part of a girl that was important to her, and then let him grope them with his fingers and his tongue.
And she finally… She knew for the first time what “climax” is, and what she experienced to reach it.
Just by remembering it, she felt that her pussy, which no one should have touched, was slowly heating up.
(Someday…I wonder if onii-chan will do that too…?)
Standing in her room in front of her mirror, the girl involuntarily ruminates on his caresses of the day.
Haruto’s fingers crawled around her white skin, breasts, nipples, labia, and vagina with his tongue, and the feeling of caressing them coming back.
(Haa, ah…)
The girl involuntarily closes her eyes, blushes her cheeks, and lets out a sexy sigh.
But she remembers what she learned in today’s ‘class’, and she takes out her phone.
Today she revisits her image of what she experienced – the look on her face when she cums.
(At that time, I was ecstatic, but… I really have a naughty face… But such a sexy look… Am I only able to reproduce it only when with Haruto-senpai…?)
The girl checking her time, shaking her head to wipe away her anxiety.
It was already midnight and it was time for her step-brother, Shun, to go to bed with her –
Shun had already turned off the lights in his room and was ready to go to bed.
When he closes his eyes, he hears the creak of the bed.
(There are signs of people… Ah… Noa again. She’s early tonight.)
When Shun lay down, either when he was still awake or when he was already asleep, Noa crawled into the bed.

(Hnn… Wait a–, eeeh!?)
Shun opens his eyes slightly and is surprised at the girl’s bolder appearance than usual.
There was Noa in her underwear on all fours, crawling towards me.
“No, Noa…!?”
She’s bolder than the usual Noa, and above all, she has a bewitching atmosphere.
In the darkness of the night. The moonlight leaking through the gaps in the curtains makes the girl’s white skin appear faint, creating a mystical image.
“Onii-chan……”
One of the shoulder straps of her bra had slipped off, revealing most of Noa’s small breasts.
And her tearful eyes that seemed to be searching for something made the usual girl look bewitching.
Moreover, there is a rubber in her mouth.
“No, Noa… You… Eh…”
He hurriedly raised his upper body, but when he saw her step-sister moist skin, he couldn’t scold her like usual.
Moreover, like a cat that has eaten her food, he looks up with a look of anticipation wanting praise.
“How do you think…? Noa… does Noa look sexy…?”
She puts her hand on her brother’s upper body and transforms her jewel-like eyes into something that appeals Noa’s charm.
(Ah, I can see it…)
Shun’s male genitalia was reacting to the enchanting bulge of his step-sister who seemed to show her nipples in a little while.
(Th–that’s bad…!)
Shun is ashamed of reacting so easily to his sister’s body, and furthermore decides that socially it’s no good.
“Wait… Noa! It’s still too early for us… Noa!”
“Noa, can’t wait. Is it because Noa… don’t have sex appeal, that onii-chan won’t get excited?”
“No, no… um… it’s not that I don’t find Noa attractive. Especially tonight… she’s strangely sexy…”
(!…Then, my senior’s advice…was effective. I’m glad I took the courage…and…)
Glancing at her brother’s pajamas… Noa looks at his crotch area.
Seeing where Shun put his hands to cover the area, she could guess that her brother’s crotch area was inflating due to her actions.
“But… wait, Noa. I think it’s still too early to do something like this with Noa. Because I love Noa, I want to cherish you even more…”
“…”
(I’m happy… But… Onii-chan still treats Noa like a child…)
“Then, Onii-chan… it’s okay to sleep together, right?”
Including her complicated feelings, the girl proposes to at least maintain the status quo.
Shun couldn’t say no to that point, but he realized that he couldn’t resist Noa’s devilish charm in her underwear and slipping bra.
He didn’t dare to catch Noa’s hailless figure from the front, but made him hug her from behind.
“…”
(Ah, but even through her back, Noa’s soft body conveys a familiar smell…!)
For Shun, as an older brother, Noa’s growth was a happy miscalculation.
While off guard, Noa may have been wearing her feminine charm.
(But… Noa loves me. It’s okay. I can always love Noa. I just need to wait for Noa to grow up.)
Noa only likes Shun himself – this overconfidence comes from the weight of Shun’s memories of his time spent with Noa.
On the other hand, while thinking about her older brother, Noa realized that her senior, Haruto’s advice had a definite effect.
“…By the way, Noa. Do you know what the use for what you just had in your mouth?”
“Eh… Uh, yeah… I know.”
The girl blushes on her brother’s back and nods slightly.
“Why do you have such a thing…?”
“Eh… um… so you got it from a friend…”
By the way, her friend is the girl who sits next to her.
“So… if I heard if I put it in my mouth, it’s sexy…”
“It’s too early! Until then, put it away in the right place!”
If someone finds it, he’ll be suspected of assaulting Noa, and possibly even having sex with when he is her step-brother.
I was afraid of that moment.
–the next day.
It happened when Shun, who had just finished his morning lecture at university, showed his face in the club room of his circle.
“Well now… last night was amazing. I didn’t expect that the angel would show us that kind of show in just one day. This me feel so much excitement and invigorating….”
Looking at it, Shun’s friends seemed to be chatting in a small club room.
Perhaps because they are both engrossed in their conversation, they do not notice that Shun has entered the clubroom.
“No, not at all. Such an innocent-looking angel is already panting like that… I was so happy that my ears and eyes were so happy that I had a mess last night…I didn’t expect you to build such a mountain of tissues with a video without the actual real thing…”
“The money I put out isn’t cheap, but if I think that I won’t have to worry about fap material for a while…”
“Yes, yes”
The conversation was in the usual dubious tone, but Shun, who was a little interested, asked the two of them.
“What? Did you get such a great fap material? What’s the genre? Give it to me too.”
“N, Nagai-dono!? No, no… that’s something…!”
“This is a story outside of Nagai-dono’s defense!”
“Oh yeah! More importantly, let’s talk about the sister game coming out next week…!”
The two men forcibly change the story and make up for it.
Although Shun is suspicious of their attitude, he does not pursue it any further.
On the other hand, the two of them looked at each other while stroking their chests.
(No, that was dangerous… Yesterday, I bought a video of Nagai-dono’s sister’s porn from Sakugami-senpai for cash…I can’t say it even if I want to.)
(Since senpai force us to shut up like that… probably the older brother Nagai-dono doesn’t know anything about it.)
The two instantly sympathized with each other, but in their hearts, they were looking forward to seeing how far Noa would show them next time.
――Even after school that day, Noa rushed to the parking lot between the buildings and entered Haruto’s car to consult with him.
“So…how was it?”
“Yes… I tried to approach him immediately in underwear…”
The girl explains that last night, her step-brother Shun was more upset than usual, and was rejected because it was premature.
The very fact that Noa talked openly about her relationship with her brother without any exaggeration or concealment was evidence of Noa’s trust in Haruto.
“I see…well, it worked, but he didn’t want to move forward. And well…the rubber in the mouth…that’s nice. If Noa-chan did something like that, she would definitely be cute and erotic.”
A man who cheerfully praises Noa.
The girl was taken aback by the completely different reaction from her brother, the completely opposite evaluation.
“If it were me, I’d definitely put my hands on you… If only I had such a cute little sister close to me and did something like that…”
Saying this, the man softly stroked Noa’s smooth hair with his hand while softly caressing her earlobe.
“Aa…Fuaa…S-Senpai…Mmnn…”
Even Noa, who was wearing a uniform and was sitting quietly in the passenger seat, didn’t dislike being caressed by a man, and it tickled her.
(Senpai… is giving me compliments…)
““Hmm… Well, I expected his reaction, so let’s proceed as planned today. First of all, let’s prepare ‘equipment’ rather than leveling up Noa-chan herself.”
“Equipment…?”
Noa tilts her head at the man’s suggestion of using an RPG as an analogy.
“Didn’t I tell you? It’s about Noa-chan’s underwear. If you put on something sexier, your brother will be very happy. Well, he’ll see you as a full-fledged woman.”
“O, onii-chan… to me…”
(Conversely, he didn’t see Noa properly as a woman after all… Even senpai knew that…)
A girl who tightly clenched a small fist on her chest.
“So today, let’s go to my acquaintance’s shop and see the ‘equipment’.”
“Y, Yes!… Ah, b, but senpai… I don’t have that much money…”
“It’s okay, it’s okay. I’ll take care of it.”
“Th-that’s not good…! This is my problem, and I’m in a position where I’m being taught by senpai…!”
“I tend to want to support a girl in love. It’s all the more so when it’s a good girl like Noa-chan.”
A man who says things he doesn’t mean.
But the girl believes the words.
“B-but…”
The man gently strokes the head of the girl who is feeling reserved
“In exchange, let me choose your underwear. Even if I look like this, I have quite a good sense of taste. And would you allow me to be the first to show how you wear it? I also need to judge how well it works for Noa-chan’s onii-chan”
“Y, Yes…”
It was Haruto’s plan to get her to wear underwear of his choice in exchange for giving her money and not to say “I don’t like it”.
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