My Capable Sister Takes Me for a Spin
Chaewon-nuna told me she wanted to buy me some clothes to celebrate my admission to college.
And not just at any ordinary clothing store, but at a luxury department store.
When a successful older sister offers to buy you clothes at a department store, there is absolutely no reason to refuse.
In fact, you should accept the offer with the utmost gratitude.
I spent most of my money on in-game microtransactions, so despite the allowance I received, I lived a pretty destitute life.
I didn't have the luxury to buy clothes.
Whenever my mom bought me clothes, I just wore those on repeat.
But now, she was buying me clothes at a department store?
I'd gladly take it!
I beamed and accepted Chaewon-nuna's offer.
"Yeah! I'd love to! Buy me clothes! I really need some, Chaewon-nuna!"
"Fufu. Really? Then let's go right away. Let's see... the time is... Yeah, let's head out, buy you some clothes, and grab dinner before coming back. How does that sound? Good?"
What? She's buying me clothes and dinner?
At a department store, no less?
That sounded amazing!
Hehe~ I knew I could count on Chaewon-nuna! She's the absolute best!
"Yeah! That sounds perfect! Hehe. Chaewon-nuna, let's have a fun date at the department store!"
"A... a date?! Do people call things like this a date...?"
"Of course! We're buying clothes and eating dinner together. If this isn't a date, what is? Right?"
"I-I guess so...?"
"Ah. Do you not want to go on a date with me, Chaewon-nuna? If so, I understand... I'm sorry..."
"Ah...! No!! I want to go on a date with you too, Doyun! I absolutely want to!!"
"Hehe. See? Then it's definitely a date!"
Since she was buying me clothes and dinner, the least I could do was offer this kind of service.
I deliberately used the word "date" to put her in a good mood.
Fortunately, my strategy worked perfectly.
Just hearing the word "date" made her visibly excited with anticipation.
"Ah... right. This is a date. A date with Doyun... buying clothes... eating dinner... and then..."
She mumbled something else, but it was too quiet for me to hear.
Hmm... well, it shouldn't be a big deal.
Even if Chaewon-nuna was a pervert who lusted after her younger brother, she hadn't completely crossed the line yet.
...Probably?
At least, unlike Sieun-nuna, Chaewon-nuna was mentally healthy (?), so it should be fine.
At least she didn't have any yandere-like breakdowns.
"Ah... I shouldn't just stand here... Doyun, wait a moment while I get ready. I can be ready to go in thirty minutes."
"Thirty minutes is plenty for me too. Let's head out then."
Honestly, thirty minutes was more than enough time.
I had already showered in the morning, so I just needed to change into outdoor clothes.
Since the sun was bright today, I patted on some sunscreen too.
After changing and finishing my preparations, I went back out to the living room.
As I lay on the sofa waiting, Chaewon-nuna finished getting ready.
She was wearing a rather glamorous dress, which was definitely not something one would wear casually.
I did call it a date... but she went way more all-out than I expected.
I never imagined she would wear a dress like that.
I was just wearing basic casual clothes...
I suddenly felt a bit shabby.
Should I have dressed up a bit more?
"Um... Doyun. How is it? Does this dress look good on me?"
Chaewon-nuna struck a slight pose and asked if the outfit suited her.
The red dress, of course, suited her perfectly.
No, "suited her" was an understatement—she looked incredibly stunning!
I gave her my honest opinion.
"It's the best! You look like a queen, Chaewon-nuna! You're so beautiful!"
"R-really? It suits me?"
"Of course! You're so pretty I was actually shocked."
"Hehe. Thanks for the compliment. You look really cute too, Doyun."
"Eh, really? I feel way too plain compared to you... Should I go change into something else right now?"
"No, you look so cute just like this. In fact, if you dressed up any more, I'd be the one looking shabby."
"Pfft. Isn't that a bit of an exaggeration?"
Fortunately, it didn't seem like I needed to dress up any further.
Looking at her expression, I seemed plenty cute and lovely in her eyes just as I was.
Hehe. I've still got it.
No one in this world can match my cuteness!
I was a bit worried since she had dressed up so intensely, but what a relief.
"Doyun, let's go. We're driving, so wait for me at the front gate. I'll go get the car from the garage."
Our house had an underground garage, so she had to go down to bring the car up.
Chaewon-nuna headed down to the basement to fetch the car.
I could have just waited at the front gate, but that would be bad manners.
Since she was bringing the car around for me, I had to do something in return.
That was how you stayed in her good graces!
I dashed to the kitchen and grabbed two tumblers.
I popped capsules into the coffee machine, brewed two cups of Americano, and poured them into the tumblers.
I even added plenty of ice cubes.
With this, I had prepared coffee for Chaewon-nuna to drink while driving.
Fortunately, it didn't take long.
I grabbed the two tumblers and ran out to the front gate.
Right on cue, Chaewon-nuna arrived at the front gate in her sports car.
She must have pressed a button from the inside, because the passenger door opened automatically.
I slid right into the seat next to her.
"Hm? Doyun, what's that in your hands?"
"Hehe. It's iced Americano. You like drinking coffee while driving, right? So I made some~"
"Fufu. What's this? I knew I could count on you, Doyun. Really, you're the only one who thinks of me like this~ You're so adorable~"
"Aw, it's nothing. You're buying me clothes and dinner, so this is the least I can do! Honestly, I should be doing even more."
"No, I'm just giving you a gift to celebrate your college admission. I don't want you to feel indebted to me. So just accept my sincerity comfortably."
"But... you always give me so much allowance. I always feel so grateful and a bit sorry..."
"...Really? Well, if you feel that way... why don't you do something for me, Doyun?"
At that moment, Chaewon-nuna's voice changed instantly.
She stared at me with eyes full of desire.
Ah. I knew that look.
It was the expression she made when she wanted me to do something for her.
I had flattered her a bit to make her feel good, but it seemed I had accidentally triggered her desires.
"Doyun... actually, my chest feels a bit tight... so... could you give me a 'breast massage' like last time?"
Chaewon-nuna unbuckled her seatbelt and leaned her upper body toward me.
Her hand rested on my thigh.
From a distance where our noses would touch if I leaned in just a bit, she looked at me with greedy eyes and spoke.
"Last time... the 'breast massage' you gave me felt so good... It was so amazing, I just couldn't forget it."
Inside the car. A private space with just the two of us.
She openly displayed her lust, demanding a "breast massage."
Well... it wasn't like I couldn't do it.
Conveniently, this sports car had heavy tinting, so no one could see inside from the exterior.
Since today was a date for her anyway, I could cater to her to this extent.
I reached toward her chest and grabbed her massive breasts.
They were so plump and full that my small hands couldn't even cup them completely.
I kneaded her breasts slowly and gently.
Perhaps because of her low-cut dress, there was much more direct skin-on-skin contact than before.
If I slipped even slightly, I would end up touching her bare breasts.
Hmm... but that would be going too far.
We haven't progressed that far yet.
So I need to be as careful as possible while massaging her.
"Ah...! Mmh...! Doyun...! There...! It feels so good...! Just a bit...! Squeeze a bit harder...!"
Last time, she had at least pretended to hide her excitement, but today was completely different.
As if openly advertising her arousal, her face flushed red and she panted heavily.
Anyone looking in would think she was being foreplayed.
...Wait, is this actually foreplay?
Hmm... well, that doesn't really matter right now.
Let's just finish the breast massage first.
I pinched her nipple between my fingers and suddenly squeezed hard.
On the surface, it looked like I was just squeezing her breast firmly, but in reality, I was pinching her nipple.
The effect of pinching her nipple was immediate.
Chaewon-nuna's body suddenly jolted, and she shuddered for a brief moment.
It looked like she had completely climaxed.
"Ah...! Ahh...!!"
Although Chaewon-nuna's boundaries were slowly crumbling, she still maintained a bare minimum of restraint.
She couldn't let her younger brother find out that she had just orgasmed from having her nipple pinched.
Despite having just pathetically climaxed, she began to act as if nothing had happened.
Returning to her usual composed self, she smiled gently and spoke to me.
"Ha... haha. Thanks for the breast massage, Doyun. Thanks to you, the tension in my shoulders is all gone."
"Hehe. I'm glad it helped. Well, let's head to the department store now. We don't want to be late."
"Yeah, let's do that."
Chaewon-nuna buckled her seatbelt again and started driving.
I buckled up too and took a sip of my coffee.
Hmm... Chaewon-nuna doesn't seem to notice, but the car is absolutely reeking of a woman in heat.
I quietly rolled down the window to air out the car.