Outsider Story 5) A Sibling’s Tale 15

After school, the bell signaling the end of classes rang. The classmates, as usual, prepared to go home, and I was no different.

As I tidied up the scattered workbooks and took out the dress shirt I had put in my bag, I was ready to go home. Perhaps because a good amount of time had passed, my wet blouse had dried to some extent.

I glanced down at my chest, and though there was a faint pinkish tint, it wasn’t particularly noticeable. This much was passable.

“…Oppa.”

Having finished my final check, I approached Oppa and handed him the dress shirt. Actually, at first, I intended to keep it, but perhaps because I had held it for so long, the scent had almost completely disappeared. There was no point in keeping it then.

Anyway, after returning the dress shirt, I stared intently at his face, and Oppa responded as if asking if there was a problem.

He had taken my bra, and his attitude was utterly shameless. Of course, it made my heart flutter a little, but I didn’t show it.

“Why?”

“Are you asking because you don’t know…?”

Ah, seriously.

Seeing Oppa act so shamelessly, my nipples felt like they were going to get hard again.

It wasn’t just ‘felt like,’ they actually did get hard.

I subtly lowered my gaze and saw two protrusions poking out from under my thin blouse.

Oppa, perhaps noticing that fact, was chuckling to himself, pretending not to. I wondered if I should cover my chest with my hand out of embarrassment, but then I thought there would be nothing stranger than doing that.

In the end, I poked Oppa, giving him a silent push.

“Here? You want it here?”

Then Oppa slightly lifted the bra he had put in his bag. Seeing that, I was startled and stopped Oppa’s hand. No matter what, all the kids are here right now…!

“Ar-are you crazy? Seriously….”

“No, you asked for it, so I thought you were in a hurry.”

“O-Oppa, you keep it….”

In the end, the bra ended up in Oppa’s hands. The dress shirt I could use to cover myself was also taken away. I covered my stiff, erect nipples, which would make anyone who saw them think lewd thoughts, with my hand and returned to my seat.

The fortunate thing was that, perhaps because it was dismissal time, there were no kids focused on me. The teacher was also about to come in, so I probably wasn’t caught.

Homeroom wasn’t very long. As always, it ended with distributing some handouts, talking about various things, and a reminder to study hard since the exams were coming up soon.

As soon as homeroom ended, the kids quickly left the classroom. Normally, I would have done the same, but today was my cleaning duty day. It was annoying, but I couldn’t skip it, so I just quickly wiped things down and finished.

“Oppa… he left.”

When I finished cleaning and returned to the classroom, Oppa had left first without even returning my underwear. Of course, as long as I didn’t get aroused, it wouldn’t be noticeable, so it didn’t really matter.

Still, I couldn’t help but feel a little annoyed.

I immediately said goodbye to the friend I had cleaned with and came down from the classroom. After changing my shoes in the shoe locker and stepping outside, I saw Oppa and the Unnie I had seen yesterday at the school gate ahead.

Unnie was dressed quite provocatively again today, and no matter how I looked at it, she was even sexier than yesterday. Oppa’s touch also seemed a little sticky. Although there was quite a distance, I could feel that much.

And before I could even acknowledge them, they disappeared. Well, I guess they’re going to do something naughty today? Annoyance suddenly surged through me, and I followed the direction Oppa had gone. Fortunately, they weren’t walking fast, so I found them quickly.

“…Is this tailing them?”

Why am I even following Oppa and his girlfriend….

But having come this far, I didn’t feel like just turning back. Since it’s come to this, I needed to see what they were up to. What if Oppa was doing something weird? As his younger sister, I should stop him.

“…….”

No, okay.

It’s true, I was just feeling jealous. But when they’re flirting right in front of me, of course I’d be jealous. How could I not be?

Anyway, the two walked arm in arm, exuding an aura that clearly showed they were a couple. As much as I wanted to interfere right away, there was nothing I could do.

I glared at his girlfriend with envy and jealousy… Wait, envy? It’s not envy. It’s not that I’m envious, there’s no way I’d be envious of dating Oppa.

It’s just, the fact that they’re dating….

“…….”

I felt like I’d become miserable if I thought about it any more, so I decided to just not think anything. In the meantime, Oppa and Unnie were sitting on a secluded park bench. They weren’t just sitting; they were holding hands, fingers intertwined, gazing at each other tenderly, and even kissing.

“…….”

When I came to my senses, I was clenching my fists tightly and trembling. I’m envious. I want to kiss Oppa too… But my first kiss was already with Oppa’s penis. Thinking that made me feel a little better. Did that Unnie also kiss Oppa’s penis?

…I wonder if she did?

“No, but I said I felt better…”

While I was trying hard to calm myself, the two were moving somewhere else again. And this time, Unnie’s face was clearly that of an aroused female animal. Seriously, I wonder if she’s not embarrassed walking around with a face like that of an animal in heat.

*

In truth, Daeun’s own state, despite what she said, couldn’t be described as unashamed. Her nipples were stiff and erect, clearly visible as protruding bumps to anyone who looked, and her expression, though tinged with a hint of jealousy, was that of a female animal that didn’t lose out to Seon-hye’s at all.

Furthermore, she was also leaking a bit of vaginal fluids down her thighs, meaning she was in no position to criticize Seon-hye at all. But she had no way of knowing that, and Daeun, blinded by jealousy, cautiously followed the two.

The place Dajun and Seon-hye headed was a secluded spot in the park. It was one of the best places for couples to engage in outdoor activities. Sitting on the bench, talking about various things, Seon-hye cautiously initiated the topic, and unconsciously, she revealed an aroused expression as she tightly squeezed Dajun’s hand.

Honestly, this young boyfriend was too good. Despite his young age, his body was excellent, and his technique was good too.

She knew he had several sex partners, but he was such an excellent boyfriend that she could even overlook that.

Not just in bed, but his personality and looks were also excellent.

“Hehe….”

A cute face she would never show her university classmates. Seon-hye showed that side of herself to her younger boyfriend and cautiously took out a condom.

“You brought condoms? You prepared a lot today.”

“No, but you didn’t do it yesterday…”

“Ah, that was…”

He couldn’t say that his younger sister was too arousing, so he wasn’t in the mood. And thinking about his sister while with his girlfriend didn’t feel right either. So he had no choice but to give up.

Still, he felt a bit better today, so he could probably do it.

Dajun, unaware that his younger sister was secretly watching, unbuckled his belt.

“Ugh…♡”

Seon-hye carefully put a condom on Dajun’s penis. It was an extra-large size, but even so, it looked slightly small.

‘It’s really big….’

It wasn’t the first time she had seen it, but she couldn’t help but be surprised every time she saw it.

Meanwhile, Daeun, watching Oppa’s penis, was consumed with jealousy.

‘Ugh…♡ Seriously, I want Oppa’s penis too…♡ Ugh, h-huh♡’

Of course, she wasn’t just quietly watching; as always, she was holding her breath and masturbating her pussy. The fortunate thing was that it was a secluded spot, and also a famous place for couples’ affectionate acts, so perhaps there were no people around right now while the sun was still bright.

If it weren’t for that, the sound would have definitely given her away.

Not moans, but squelching sounds.

Dajun and Seon-hye, from a distance, were engrossed in their own activities, so they wouldn’t know.

“H-huh♡”

Daeun’s masturbation continued until their affectionate acts were over. The two were kissing and sucking on each other, making a huge fuss, and continued their activities for quite a long time. To the extent that three used condoms appeared.

Only then did the sun slowly set, and signs of people coming to this gradually darkening place began to appear. Thanks to that, even though they weren’t fully satisfied yet, they had no choice but to go to the next location.

Dajun carelessly tossed the used condoms aside and took Seon-hye’s hand. Daeun stared intently at them, and seeing the two disappear, she ran to that spot.

Vaginal fluids dripped as she ran, but she didn’t care about that. At the spot she arrived at, three warm, recently used condoms lay.

“…♡”

Daeun, as if it were natural, collected all three of them.

“That Unnie is such an idiot… To just throw away something this good and leave…♡”

As she untied the knot of one condom, a strong masculine scent assaulted her nasal cavity. Daeun gulped and stuck out her tongue. Semen flowed jururuk from the inverted condom onto it.

Oppa’s virility was amazing, and his semen was thick like jelly. Although it was a condom that had just been in and out of another woman’s vagina, Daeun didn’t care; she sucked jjok-jjok at the condom’s outer surface, extracting the semen. At the same time, her body trembled burur and she came.

“Ugh…♡”

She put the remaining two condoms in her pocket, intending to use them later. More importantly, she needed to find Oppa, who had disappeared… It wasn’t difficult. A couple who had just been doing naughty things wouldn’t be walking fast.

After leaving the park and walking around a bit, she saw Oppa and Seon-hye leisurely on their date. Daeun looked at them and vowed.

‘I’ll never let Oppa be taken away….’

Although her mindset had changed a bit from when she first started following them, Daeun couldn’t bring herself to care about such things.