Chapter 144: Bitch Mode Serena [R-18]

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Turning back time, to last night.

Serena had finished her chores and was using her remaining time to study.

But her beautiful, meticulously filled notebook, a hallmark of a model student, wasn’t getting any fuller today. It was proof that her mind was elsewhere.

“Oppa…”

Sigh.

Just thinking about her brother made Serena’s cheeks flush and her breath catch in her throat.

Sitting at her desk, Serena thought of lewd things to say for him, her pretty lips parting slightly.

“Serena’s little sister pussy is all for you, Oppa… Won’t you fuck it?”

A vulgar word like “pussy.” She wasn’t used to saying it, and a blush crept up her face.

“It doesn’t feel right. This isn’t enough…”

Serena knew instinctively.

Isn’t there a way to make Oppa use his little sister’s hole… without a second thought?

They always confirmed their feelings for each other by rubbing their bodies together.

If she just gave him a little push, he would start moving on his own, like a swing.

Her brother’s stubborn resistance, as if he were standing on the edge of a cliff, was unusual, but Serena liked that about him, too.

She didn’t think he was being indecisive.

He was trying to maintain his reason and act responsibly as an older brother to protect his family.

“Hah… Oppa.”

Serena imagined her beloved brother as she kneaded her own breasts.

His hesitation, his refusal to cross the line, was proof that he loved his little sister.

The thought made her feel a pang of longing, a sweet ache.

Serena wanted nothing more than to embrace her brother with the best part of a woman.

Just like that time.

Even if what happened that day was an accident or a mistake, her brother’s cock had definitely pierced her.

That incident grew larger and larger inside her, eventually becoming the main reason she started to think, It has to be Oppa’s cock, or nothing.

It was a no-count-sex, but Serena’s primal female instincts had long since chosen her gallant brother as her husband.

I have to let him know.

The moment he chuu~~ed into my uterus with his king-sized cock, my little sister pussy’s fate was sealed.

If only he had thrust his hips then… If only Oppa had raped his little sister’s hole then…♡

Unfinished business never left her mind, just floated around aimlessly.

Serena’s heart was leaning toward seducing her brother.

If Oppa wouldn’t cross the line, then his little sister would have to.

I want to get pregnant with Oppa’s baby♡

She could no longer be satisfied with just foreplay.

Serena was now determined to confirm with her own body just how much her brother wanted to fuck his little sister.

A surefire way. Is there one?

Just then, Serena’s phone buzzed.

[Isolde]
How did the sexy underwear plan go?

[Serena]
(Embarrassed emoji) I was just getting ready for that…
How can I push him a little further?

She’d asked with that intention, and Isolde’s reply was sharp.

[Isolde]
What’s your goal here? Sex?

Serena was so startled she almost dropped her phone.

[Serena]
Huh???

[Isolde]
You don’t have to hide it. Anyone can see your goal is to have sex with Sang-hyeok-seonbae.

She saw right through me…

Isolde was a friend she could share secrets with, but…

[Isolde]
For the record, Seonbae is amazing, you know? lol. You know that feeling when your mind goes blank and you can’t think of anything? The afterglow lasts for dozens of minutes, but he doesn’t even think about stopping, and I just become like a hole that makes sounds, and all the strength leaves my arms and legs and I just tremble…

[Serena]
…So it’s fine as long as you succeed, Sol!? I want to do it too. Me too! Tell me how!

[Isolde]
Do you want to know the secret? lol. Do you want to know everything about Sang-hyeok-seonbae?

[Serena]
I do! Please teach me, Teacher!

Isolde was acting all high and mighty just because she’d had her first time with Sang-hyeok a few days ago.

But from Serena’s perspective, it was a huge difference.

After all, Isolde had succeeded.

[Isolde]
So? What’s the plan?

Serena confessed the entire scenario she had in mind to Teacher Isolde.

[Serena]
…Like this. I was going to try to show him how much I really want to do it with him.

[Isolde]
Serena, you really don’t know the first thing about males.

[Serena]
Please teach me! Teacher Isolde!

[Isolde]
You have to make him desperate. Men are hunters. It’s not working because you keep offering him your breasts, presenting your ass, and just trying to make him comfortable.

[Serena]
Is that how it is…?

[Isolde]
I was just working on some NTR material for my stream anyway…
I’ll give you a script. If you follow it, Sang-hyeok-seonbae will grab you, hold you tight all night, and fuck you like crazy.

Oppa… will hold me tight and have sex with me all night…?

Serena’s eyes began to sparkle.

That… I’d love that…♡

I’m so glad I asked Isolde! As expected, you have to listen to someone with experience.

[Serena]
I’ll do anything you say! Teacher Isolde!

[Isolde]
Come to Dis○cord!

Opening her laptop, Serena started a one-on-one voice chat with Isolde and received the script for making a male desperate.

It was the “Serena Who Might Be Snatched Away” concept.

After reading Isolde’s script, Serena was a little taken aback.

“Isn’t this just a bunch of lies I don’t even mean? I hate the idea of other men.”

“You’re just supposed to pretend. The truth will come out right away. Think of it as a catalyst.”

“Still, this line… ‘I guess I’ll just have to learn with my body while we date?’… is a bit much.”

Isn’t that going too far?

She couldn’t say that to the friend who had taken the time to write a script for her, but most of the NTR script was already out of bounds by Serena’s standards.

“Why? It’s totally bitchy and erotic.”

“I just want Oppa to always be comfortable, rubbing against me in my arms without any stress.”

That was Serena’s true feeling.

No matter how desperately she wanted something, she didn’t want to do anything that would upset her brother, even a little.

Knowing how Serena felt, Isolde continued her explanation logically.

“You can do that all you want later. Right now, you have a competitor.”

“A competitor…”

“You said Stella is after Oppa too, right? And pretty aggressively.”

“Yeah. She challenged me to see who could get pregnant first…”

“…”

Serena could hear Isolde gasp on the other end of the call.

“I can understand why, since it’s Sang-hyeok-seonbae. But for that prickly and sensitive Stella… to say something like that…”

“I was a little surprised, too.”

It was surprising enough that Stella wanted to date Oppa.

But now she was saying she wanted to have his baby.

“She’s desperate, too. Because her opponent is you, Serena.”

“Huh? Me?”

“It hasn’t been long since Stella found out about your secret relationship with Oppa, right?”

“Yeah.”

“Isn’t it because she found out you two were having fun all by yourselves, so her brakes just completely failed? Like, ‘Serena is doing it, so it’s not weird for me to do it too…’”

“…”

Serena thought Isolde’s guess was very plausible.

That’s what Stella was like at first, when Serena had crawled under the sleeping Oppa and taught her how to suck his cock.

“Why are you sucking the place where pee comes out? That’s gross.”

“This is a little sister’s sexual relief service. It makes Oppa really happy.”

“I’d think he’d be disgusted by a little sister who sucks something so dirty.”

“But… I’ve received plenty of proof in my mouth that Oppa enjoys it…?”

She remembered the look in Stella’s eyes back then, as she meticulously explained the meaning of the act to a Stella who was horrified by the very idea of sucking a cock.

She looked like she was jealous of the two of them, playing secretly without her.

I want in. I want to do it too… Goaded on by that feeling, Stella had put her pure lips to Oppa’s cock.

And now…

She had reached the point where she was using her mouth to surpass Serena herself.

“I think you’re right.”

Serena realized the source of the impatience stirring in her heart.

“I want to get ahead of Stella, too. Are you sure this will work?”

“You doubt its effectiveness?”

“I’m worried… What if Oppa gets mad?”

“Well, we’ll just have to prescribe some strong medicine.”

“Medicine?”

Isolde gave her a few warnings.

“You have to make it obvious you’re acting. If you’re too realistic, Oppa might actually get hurt.”

“Yeah. Uh-huh! You mean I should be so over-the-top it’s obviously fake…!”

Serena practiced once.

“‘What if guys flock to me and I get totally fucked? Ah, I mean, with their phone numbers…’”

“Perfect!”

“If it’s about phone numbers, why is it written as ‘get fucked’…?”

“It’s to make him imagine you, Serena, getting fucked…”

“Nooo! That’s out of bounds!!”

Through delicate negotiations, Isolde and Serena adjusted the intensity of the script.

“I don’t show my underwear to other people.”

“Well, another guy could see it when you’re going up the stairs.”

“Wouldn’t it be too awkward and break the illusion?”

“You don’t get it! You just need to stimulate the male’s fear of having you snatched away. It’s not like you’re an idiot who’d actually flash her panties on the stairs, but…”

“…Stimulate his fear…”

Realizing Serena was feeling guilty, Isolde took out her switch.

“Cadet Serena, do you not wish to have sex with your brother?”

“…N-No, I want to be in his arms!”

“You have to go this hard to beat your competitor. But make sure to apply the medicine quickly. The moment you think Oppa has fallen for it, switch immediately to Gentle Serena Mode.”

“G-Gentle Serena Mode…”

“If Bitch Serena Mode goes on for too long, Oppa will get his feelings hurt.”

Serena pouted slightly.

“It’s not like I’m a robot. Why do I have ‘modes’?”

“Just think of it as a switch in your head. If you’re timid while delivering lewd lines, it’s embarrassing for the listener too.”

“It won’t feel right, will it…”

“Before you start, repeat this ten times: I am lewd. I am the lewdest, most erotic little sister in the world. Then go in.”

“I… I am lewd!”

She immediately bit her tongue.

“Hauk…!!”

“‘Let’s get comfortable with little sister’s pussy.’ Repeat after me, Serena.”

“L-Let’s get comfortable with little sister’s pussy…”

“You’re an active-duty little sister, so it’s guaranteed to work. You’re going to mince your brother’s reason to pieces.”

“…”

Under Instructor Isolde’s teachings, Serena armed herself with all sorts of sharp weapons.

“I’ll submit an absence form for you tomorrow. You have to act in a way that makes it absolutely impossible for Oppa to send you to the academy.”

“Will saying a few lines like this really make Oppa hold me back?”

She imagined her brother’s face turning serious, asking, “What kind of joke is this?”

Serena was scared.

If he ended up hating her for this, she’d lose everything.

Even her current position as the gentle little sister who offered her ass to help him relieve his urges was precious to Serena.

“If anything, I toned it down because it was too stimulating.”

Isolde said confidently.

“What kind of brother would want to have you snatched away, Serena?”

“You think so…?”

“If you can’t believe in yourself, believe in your breasts.”

Her breasts.

Her little sister’s big breasts, which Oppa loved…

Serena firmed her resolve while kneading her breasts.

“Okay… I’ll try it… Thank you, Sol!”

“Make sure to tell me how it goes. Oh, and Sang-hyeok-seonbae is really amazing, so be prepared.”

“He’s really amazing, huh…”

Those were the words of someone with experience. It must be true…

“Oppa is… amazing…”

That night, Serena masturbated furiously while reviewing the plan.

She engaged in some method acting to bring out the lewd Serena.

“Ah… Ahnn… Hhngh… Oppa…”

Serena lifted her hips on the bed and gently rubbed her pussy.

“Mmm… I am… lewd… I am the lewdest, most erotic little sister in the world…♡”

Not ten times, but a hundred. Not a hundred, but a thousand.

After her persistent self-hypnosis, Serena greeted the morning.

She had no idea how hard she’d worked. She practiced the script until her throat was sore, over and over again.

I just have to do it well in front of Oppa without faltering.

Sang-hyeok naturally came and rubbed his cock against Serena’s ass as she was setting the table for breakfast.

Hk. Hkkk…

Serena squeezed her butt cheeks tight, enduring the rubbing of his cock.

My pussy’s so sensitive, I came…♡

Because of her self-hypnosis about being the lewdest little sister in the world, her body wouldn’t listen to her.

Her body was overreacting to her brother’s perverted skinship.

If Oppa had slapped her ass and told her to lie down for pussy sex right then and there, she felt like she would have rolled over and exposed her belly on the floor like a puppy.

Don’t forget. Just like Sol wrote it down…

Once Stella, who always left for the academy first, was gone, the operation would begin…

Ah. I’m out of breath.

What if I fail? What if I fail?

What if Oppa scolds me and tells me to study instead of pulling such pranks?

Serena’s whole body was tense as she put on her school shoes. Her heart wouldn’t stop pounding…

“…I’ll say it again, when Serena is in Bitch Mode, she has no rival. Even that student council president would have to yield to you.”

Sol had told her so, but she still didn’t have enough courage.

Her breath hitched on its own, and her pupils dilated. She wasn’t even sure what she was looking at.

Just as the urge to flee, to pretend nothing was wrong and go to the academy, was surging up inside her—

Oppa…?

Her brother’s gaze was fixed on his little sister’s thighs.

That was the signal that unsealed the “Lewd Bitch Serena” and released her into the world.

Serena had nothing to fear now.

“Oppa.”

“Uh, yeah?”

“…They’re purple today♡”

She’d said it.

When she came to her senses, Serena had already been all but dragged away and abducted into her brother’s room.

Her school shoes were scattered carelessly in the hallway from where she’d hastily kicked them off.

On the floor of her brother’s room lay scattered textbooks and her bag. The purple bra and panties he had removed while kneading her sensitive breasts…

They were the signs of a successful operation.

The morning of the third week of “Ona-Aka” begins.

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Translated By: Meher (RaidenTL)

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