Bet (1)

Since returning from the cafe, there had been almost no conversation with my younger sister.

We spent our time without even the usual “Have you eaten?” level of interaction.

Whether she was bothered by the promise made at the cafe,

or if she was silent because she thought I’d forgotten about it, there was no way to know…

The bet was saved on my phone, but I was heated when I said it, so I decided not to worry about it.

No matter how much I was turned on by my younger sister’s body, it would be a bit embarrassing as a man to force it out of her.

I should either naturally have the other person come to me first, or continue naturally.

Roughly two weeks had passed without any conversation, since the bet recording.

The weather was slowly starting to warm up, and since it was mid-February, it was definitely warmer than before.

Despite the flu spreading everywhere, my parents said the weather was nice, so they were going for a drive to see the flowers for the weekend.

I went for a quick interview and came home, thinking I’d struck out again today, only to find my sister grinding her teeth.

“Hey, let’s go today, I’m setting a 5-minute time limit, you fucking bastard. If you don’t get hard in 5 minutes, you’re giving up your job and all your salary. You fucker.”

“It’s obvious you’re going to lose, why don’t you just give up? If you give up now, I’ll let you off with a three-flavor Baskin-Robbins.”

“Ah, stop talking shit. Are you scared? If you’re scared, you give up.”

The greeting I received upon arriving was quite brutal.

Who’s going to be scared by a girl who grinds her teeth and wears a shirt and shorts when she says something like that?

I have no idea what kind of guts she has to act like that when it’s obvious she’s going to lose to me anyway.

What is it? What’s with the confidence?

Does this bitch mean she wants to declare herself my slave today?

Well, giving her what she wants is what a person, a man, should do, right.

“What are the other conditions? Do I use the blindfold you used, and are there no restrictions on the tools I use to hit you?”

“5 minutes, the blindfold I used, only hands for tools, and everywhere except the face for hitting.”

“Hey, I’m tying your hands and feet there. Add one more condition. Conscience-wise, you acknowledge that it’s disadvantageous if you struggle and drag out the time, right?”

“Why would that be disadvantageous? Are you scared?”

“Don’t talk shit, if you’re not going to do it, it’s over. Even if you just struggle for 5 minutes, all the time will pass.

And then you’ll say you didn’t get hard, so give me your salary. I’d be a fool to listen to that, wouldn’t I?”

She makes an unexpected expression at my words.

But I’m not an idiot…

If she struggles when I hit her, she’ll drag out the time, and it’s over, so of course, I should tie her up, right?

If she refuses this, I’ll use that as a reason to not do it, and it’s over.

Even if I like winning bets, who would like losing bets? I’m not an idiot.

Her eyes glaring at me with gritted teeth are unusual, but my reason is justified.

If she didn’t do this, I was going to refuse and go straight into my room, but

she put her hand on my shoulder from behind and answered with gritted teeth.

“Ggeureusseubeulleureumeu…the blindfold and tying up, I’ll do that…”

I was a little scared by the atmosphere that seemed like I’d die if I didn’t wait, so I sat down in the living room and waited.

She’s going to lose anyway, but her pride is so strong that she doesn’t know how to give up.

But those kinds of girls always start saying “cock, cock” once they get a taste of something in porn or manga.

That’s just fiction, and this is reality, so I guess not. How could a person be like that.

After a while, my sister came out with a huffing expression and threw a scarf at me.

Anyone would think a knight was throwing it to request a duel! Just give it to me, you ill-tempered bitch.

“Hey, wait a minute. Before you put on the blindfold, take off everything except your underwear? It would be fair to take off your underwear too, but I’ll let you off easy out of courtesy. Or you can take it all off if you don’t want to.”

When she was about to put on the blindfold with the same clothes she was wearing earlier, I realized that it would be disadvantageous for me if she did that, so I brought up one more thing.

On purpose, as if teasing her. I gave her a mocking look as if I was letting her off easy, and she gritted her teeth and took off her shirt and pants.

Yeah, you can’t beat me with words after all. You’re the type of girl who doesn’t try to win in a cowardly way, are you? You.

Still, unlike her bad temper, her body is hot.

Even though it’s a plain bra, her breasts are too big for it and stick out above it.

Even though her breasts are big enough to jiggle, she has a fairly clear 11-shaped abs on her stomach.

Her thighs also look firm, and overall, her body line is beautifully shaped by muscle rather than fat.

…Damn it, if she wasn’t my sister, I would have fucked or done SM with a woman with that kind of body.

The more I think about it, the more fucked up it is. I didn’t know that because I didn’t look at her face.

But if I think about it, if I win the bet, she’ll be my slave, so can I make her do that kind of stuff?

After hesitating for a moment, I roughly threw off her clothes and tied my sister’s ankles with the scarf before she could put on the blindfold.

“Once you put on the blindfold, it starts. Live as a beggar for 10 years, you idiot.”

Her body twitched for a moment when I tied her ankles, but she didn’t show it.

She hooked one side of the blindfold over her ear, checked the time on her phone, and spat out bluntly.

Without answering, I just nodded and put the blindfold on her with my own hands before tying her wrists with the remaining scarf.

Without saying “start,” I lifted her wrists up as soon as I tied them.

What kind of talent does this idiot, who got turned on by my words and took off all her clothes, have to resist and endure?

“Live as a beggar? What beggar, you’re going to live as a slave from today, you’re just putting on airs.”

“Hey, you fucking bastard, why did you raise my arms? Are you not going to lower them?”

“Yeah, don’t talk shit~ How do I know if you’ll resist if I lower your arms? I’m preventing it in advance.”

Her struggling body is meaningless since I’ve already raised her arms and stepped on the scarf tying her ankles with my foot.

There’s only one hand left, but one is enough.

She’s gritting her teeth and looking in the direction where she hears my voice, but it’s meaningless.

I may not have had sex, but I won’t lose to anyone when it comes to words and theory.

When I slowly stroke her butt with my hand, I can feel the tension in her butt.

As expected, she takes good care of herself, so it’s really big but firm. If I had to give it a grade, it would be at least an S.

I ignore her tensed butt and continue to stroke it.

“Hey, you fucking bastard! Why is your hand going inside my panties?”

The hand that was stroking naturally lifted her panties slightly and touched the inside.

A different twitch than before is clearly felt in my hand, and I can clearly feel her trying to move and endure somehow.

The way she’s cursing and trying to endure somehow is definitely because a masochist doesn’t want to show their true self.

Without even bothering to answer, my hand gently rubs between the cheeks of her butt with my fingertips.

The butt that keeps twitching at the gentle touch gives me a sense of conquest little by little.

“Hiyaak!”

“Where does this slave bitch think she is, 씨발놈? The master is touching you? Be prepared for training today, you 개년아.”

As a reply to the curse she gave me, I lightly slapped her butt.

The butt that shakes from the slap delivers my sister’s moans as a suitable impact.

As expected, a more feminine, lewd voice starts to come out, unlike before.

It makes sense. She’s a perverted bitch who gets turned on by words and takes off her clothes, and she’s my sister.

“Hieuk! Kyaak! Haa…hot…”

The hand that was hitting her butt slowly went down, leaving my handprints all the way to her thighs.

From the underside of her butt to her thighs, and even the back of her knees. My sister’s voice changes every time a red handprint is left.

The sharp, knife-edged voice gradually weakens, and as it weakens, it gradually becomes a woman’s voice,

no, the voice of a slave who wants the touch of her master starts to come out.

Even though she’s only been hit on her butt and thighs, her voice becomes lewd and her breathing becomes rough.

Even though it’s only been about 2 minutes since we started, my sister is already becoming a woman.

“You fucking bitch, you’re going crazy, right? You’re the type who gets turned on just by me writing, so your head must be spinning if you’re getting hit directly. Because you’re being directly touched in the areas you get turned on by just reading.”

“N-no. 씨발, it’s not over yet…hihat…”

I deliberately blow air into her ear and whisper to her.

The hand that was hitting her butt slowly and gently strokes her spine, caressing my sister’s waist.

It takes time for the stimulation on her butt to spread throughout her body, and a propellant is needed to spread that stimulation.

I lightly bite the ear of the still defiant sister bitch, and I hear the voice of a limp female.

Not missing that moment, I rub her waist with both hands and slowly go up to her chest.

You must never do it weakly. A gesture as if trying to pull her down from the summit, pressing down on her body and pulling it.

As I stimulate her body by grabbing it intensely enough to leave the marks of my fingertips on my sister’s body, I can hear her holding back her breath in my ears.

It’s hard to pass off the gesture of trying to devour a woman who can’t resist with a blank expression.

Anyway, if I hadn’t known her face, she would have become the slave of my instructor, so why is she acting so cocky?

I could hear her panting more and more, and it was so clear that I could see her holding her breath.

“Tell me, you fucking bitch, are you turned on or not?”

“Hiak! Haa-haa-ah, I’m not…turned on…?”

On my sister’s body, who doesn’t seem to have any intention of resisting, I put my hands into her bra and grabbed her breasts with both hands.

Hmm, as expected, I can feel the firmness as much as I can see, and at the same time, when I scratch her nipples with my fingertips, moans start to come out.

It’s clear that she’s already turned on. It was clear that the inside of her panties would be clearly wet.

But there’s still 1 minute left.

There’s still 1 minute, which means there’s time to train the bitch who will become my slave later.