Riser

21-70

Added 2025-04-17 03:25:13 +0000 UTC

Chapter 70: Ah! I Want to Have S3x!

Mi-hyun, who had just climaxed slightly while her boyfriend was on the phone and I was Iicking her pu$$y.

"Mi-hyun? What is it? What's that sound?"

"Ah, it's nothing. Just a mouse, a mouse came out"

"Really...?"

"Yeah. Let's hang up. See you tomorrow, okay?"

She quickly pushed my head away with her hand and ended the call.

Oh my.

She's glaring at me with angry eyes.

"Ah, brother! What are you doing?!"

"Why did you answer the phone in the middle of this?"

"Does that make sense? We almost got caught!"

"But we didn't get caught, right? Why not continue what we were doing?"

"Aish!"

Though she was pouting her lips, Mi-hyun got back on her knees and continued giving me a titj0b.

Watching her slightly sulking, I carefully asked:

"By the way... who's your boyfriend?"

"Why?"

"No, just... wondering if I know him"

"...You probably do. It's Yoon Habin."

"What?"

Yoon Habin.

He was a cla$$mate of mine last year.

We weren't particularly close, but we were in the same cla$$ for a year, so he could be considered an acquaintance.

The fact that such a guy was my sister's boyfriend gave me mixed feelings.

"Damn... that guy is such a nerd with gla$$es. So scrawny."

"What's wrong with that?"

"Nothing... you used to date school bullies a lot"

And another thing.

Yoon Habin was... a complete anchovy and a model student.

He's not ugly, rather neat-looking, but he has almost no masculine qualities.

Why would she date someone like that?

"Ha. You sound just like my friends. I got tired of those ignorant bully guys. So this time I wanted to date someone smart."

"...Whatever..."

"Why are you so interested in my boyfriend? Are you... jealous?"

"What, jealous? Of that guy? Why would I be?"

"No, you are. You're jealous of him."

"Shut up"

To be honest,

I am jealous.

It's been several days since Mi-hyun and I started this kind of relationship.

Still 60% sister but 40% woman—a mysterious or ambiguous relationship.

So now I'm not sure if it's right or wrong for me to feel jealous about my sister having a boyfriend.

"What's wrong with that? Ahaha! This is so fu.cking funny. Does it make sense to be jealous because your own sister has a boyfriend?"

"I'm not jealous!"

"Sure, sure. Hehe, I'll believe you"

No matter how much I deny it, I can't seem to fool her intuition.

"But... have you... done it with him?"

"What? What do you mean?"

"You know what I mean."

She knew what I meant but still made a fierce expression like a cat in front of a mouse.

"Say it with your own mouth. What do you mean?"

"Oh come on... I'm asking if you've had s3x, s3x!"

As I asked embarra$$edly,

"Hahaha! Really? Are you curious whether your sister has had s3x with her boyfriend or not?"

"...Yes. I'm curious. Satisfied?"

"You are jealous, hehe"

"Let's say I am jealous. Have you had s3x with that guy or not?"

"I haven't. Come on. We've been dating for less than a week."

"...Really?"

I was surprised by the sudden relief I felt.

In just a few days, after crossing the line with her, things had changed so much.

"You really haven't had s3x with that guy?"

"Ah. Why are you so obsessed? I really haven't. And even if I had, what would you do about it? Why... are you desperate because he gets to fu.ck me but you don't?"

"Why would you say that? I was just curious..."

I brushed it off like that,

but honestly, she was right.

I couldn't bear the thought of that guy fu.cking my sister Mi-hyun when I couldn't.

Above all, touching a friend's(?) sister without her brother's permission is a violation of moral code.

But anyway...

"Ah shit... hey, I'm about to cu.m"

"Cu.m in my mouth. It's annoying to clean up if you spill"

After just a few days, this kind of conversation had become normal between Mi-hyun and me.

The next day.

Morning.

As soon as I woke up, I looked down at my fully erect penis making a magnificent tent and shouted:

"Ah! I want to have s3x!"

"Are you crazy, brother? Don't shout so loudly"

Unusually, Mi-hyun had woken up before me and was sitting at the desk doing her makeup when she was startled by my outburst and scolded me.

"Where are you going?"

"Out"

Ah...

I wanted to hug and roll around with Mi-hyun today too.

They say the taste you know is scary.

Although I had secretly had s3x with my unconscious m0ther, after satisfying my s3xual desires with such abnormal acts, my thirst for s3x overflowed even more.

Moreover, during the winter break after the college entrance exam, when high school seniors are said to be most relaxed and idle.

When you have nothing to do but roll around in your room, you eventually need a bigger dopamine stimulant to combat boredom.

It might be understandable if I had never done it before.

But having already tasted s3x, it was harder to control myself.

Somehow I had developed that kind of relationship with Mi-hyun and went crazy ejacuIating while receiving feIIatio, handj0bs, and titj0bs,

That felt good too, but since I couldn't have actual s3x, it was tantalizing.

But Mi-hyun wouldn't allow s3x.

And m0m... that was a crime to begin with, right?

Even though I had already committed a bad crime... I couldn't bring myself to drug my m0m and r@pe her like in some criminal erotica.

So,

I hugged Mi-hyun from behind as she was unusually up early getting ready, and whispered:

"Where are you going?"

"I have plans"

When your brother asks, you should answer properly. How rude to give such a short answer.

"Are you meeting your boyfriend?"

"Yeah. Why?"

"Sigh... where are you going on your date?"

"To a karaoke place... why?"

Her voice tone rose, perhaps annoyed at being interrupted while doing her makeup and hair...

But what do I care?

"Ah, I'll be bored if you go out. Can't you not go?"

"Brother, you don't actually want to hang out with me, you just want someone to $uck your di.ck, right?"

"...You're smart, aren't you?"

"You really are a pervert. I made you cu.m three times just yesterday."

"Whatever. But I'm hard again. Let's do it once before you go"

When I hugged Mi-hyun's soft body, the scent of makeup powder, fragrant shampoo, and clean skin made my penis stand even more erect, like a disciplined private.

So while rubbing it against her bu.ttocks, I put my hand inside her clothes and ma$$aged her breas.ts and pu$$y...

"Aish... I'll be late for my appointment."

Though she pretended to be annoyed, I could feel she was slightly excited too.

"Yeah. What's he going to do even if you're late?"

"That's true"

In the dating market, Mi-hyun's position is absolute. In terms of the ecosystem, if she's a Tyrannosaurus,

Yoon Habin is at best a buffalo.

Just a mouthful.

Well... he's smart and decent-looking, but he's such a scrawny, wimpy guy.

Not because she's my sister, but objectively, by the standard of beauty, he's definitely the subordinate and Mi-hyun is definitely the superior.

Anyway, what could he do if my sister is late?

"Oh. Did you know Habin also got into K University?"

"What? Really?"

"Yeah. Same university as you."

"Which department?"

"Don't know. I don't know that much..."

While saying this, Mi-hyun came down from the chair and crawled between my legs as I lay spread-eagled...

She tied her hair back and $ucked my penis.

With my penis in her mouth, she suddenly seemed to find the situation funny and snickered,

"Brother, your jealousy is amazing."

"Don't have s3x with that guy. Got it?"

"That's up to me. Who are you to say?"

"Who am I?"

"Ah, you really want to be treated like a proper brother. Fine, who are you to interfere with my s3x life? Are you planning to take responsibility for me for life?"

Fighting with facts like a coward.

Ah, how vexing.

I want to punish this vexing girl.

"...Hey. If you don't want to do that with me... how about with your a$$?"

"Ah. Don't be so disgusting. Are you crazy? It hurts too much, I hate it"

"Fu.ck, have you tried anal too?"

"No. I tried but gave up because it hurt"

"Sigh..."

It's not working...

"Then just masturbate a lot in your room, brother~"

"Ah damn..."

"I'm going. Bye bye"

In the end, I got oral s3x by begging (she was in a hurry and didn't even ask me for 'allowance'. Sweet!),

But after Mi-hyun, whom I had been hugging, biting, and $ucking as I pleased for days, went out to play, I couldn't even bear that short time and felt empty inside.

I must have unconsciously thought of her as both a sister and something like a girlfriend.

"Sigh... damn it, should I get a girlfriend too?"

To be honest, I just wanted to have s3x without restraint.

Perhaps it was a reaction to having studied like crazy for three years in high school.

Now that I was finally admitted to the university I wanted, my mind, perhaps due to a reward psychology, had become that of a male in heat, craving s3x.

Ding.

An alarm rang at that m0ment.

From something I was following...

It was my m0m's s3x tape.

"...Kwak Young-cheol is playing with m0m again"

I had been so absorbed with Mi-hyun these past few days that I hadn't paid attention to m0m, but it seems she's still being used as a s3x house at work, just like at the used car dealership, even after moving to a new company.

"...Sigh. I shouldn't be like this, but now..."

Back then, I was so angry that my hair stood on end when I found out my m0m was being treated like that.

But now I've become numb to it?

Rather... I found myself honestly viewing her as an object of s3xual desire.

Between a man and a woman.

Thinking that there could be such relationships besides normal romance...

Still, I checked the new post on the s3x tape just in case.

Hmm...

This bastard.

In the new company, he even put a bed next to the president's office.

But unlike before, I felt my s3xual desire boiling rather than anger.

Because m0m... honestly seemed to be enjoying it.