"Ha… Haruno-san, please have some self-respect!"
Hikigaya hastily pushed away Haruno's wandering right hand, emphasizing,
"Your hands should stay on the steering wheel, not on my leg."
"Heehee, what's the problem?"
With a sly smile curling at her lips, Haruno leaned her perfectly curved figure closer to the boy.
"We're already family, aren't we? What's the harm in a little touch? Besides, haven't you touched your big sister's leg before?"
"I was forced by you!"
"But you still touched it, right?"
Haruno's brilliant smile sparkled.
Seeing her poised to toy with him again, Hikigaya felt his scalp go numb.
Yukino and Haruno… these two sisters were polar opposites.
As the elder sister, Haruno was truly terrifying.
"Hm? Hikigaya-kun, why are you… different today?"
Haruno's heart gave a soft thump as she blinked in surprise, staring intently at the boy's face.
Her long, fair legs instinctively tightened just a little.
"W-What do you mean?"
"Didn't notice at first, but now that I look… hehehe, Hikigaya-kun, you're kind of cute today, aren't you?"
"Huh?"
"And, and… you look kinda… sexy today. Almost like a beautiful woman—stripped bare~"
Her gaze shamelessly roamed up and down his body.
"??"
Feeling extremely uncomfortable under Haruno's unabashed stare, Hikigaya muttered,
"I'm a guy, not a girl."
"Exactly! So why is it…"
For a moment, Haruno subconsciously swallowed, the rich scent of his masculinity stirring her brain.
A surge of impulsive desire rushed up inside her.
"H-Hikigaya-kun… why don't you consider what I suggested earlier?"
"Earlier… suggestion?"
"Yukino-chan's on her period, right? So why don't you let me, her big sister, help you out~"
"???"
Hikigaya's face flushed red, and he quickly tried to put some distance between them.
"H-Haruno-san, if you keep joking like this, I'm getting out of the car!"
"Onee-chan isn't joking, you know."
Grabbing his arm, Haruno smiled sweetly.
"Otherwise, how are you planning to take care of your, ahem, needs?
Sneaking off behind my little sister's back to find another woman?"
"!!"
Hikigaya's heart jolted.
She really is a demon lord!
Taking a deep breath, Hikigaya calmly replied,
"Of course not. Things like that… I'll handle them myself.
Besides, it's not like I'm constantly thinking about that stuff. Even if it's just once a week, it's no big deal, right?"
"Huh? Once a week?"
Haruno gave him a baffled look.
"Normal guys can't go a whole week without releasing their urges, you know?
At your age, Hikigaya-kun, once a day is perfectly normal."
"O-Once a day?"
Hikigaya's eye twitched as he shot back,
"Then what about you, Haruno-san?"
"Me?"
Haruno's usually confident smile faltered slightly, and she playfully huffed,
"A girl's private matters aren't for boys to ask about~!"
"Probably once a week…" Hikigaya muttered under his breath.
"Hikigaya-kun, I can't hear you~ you'll have to speak up!"
Haruno's smile lit up in an almost sinister way, sending chills down his spine.
"N-Nothing!"
Hikigaya quickly backed down,
"I'm saying, it's about once a week for me…"
"That's no good!"
Haruno leaned in closer.
"For a healthy young man like you, only once a week? You'll make yourself sick. You really should take care of it properly."
"T-Then I'll handle it myself."
As Haruno's supple figure subtly slid from the driver's seat toward the passenger side, Hikigaya nervously turned his face away, doing his best to stay calm.
There was no helping it.
Haruno's current posture was way too tempting, flaunting every curve to the extreme—especially her back and hips.
"Hikigaya-kun, boys can't cleanly handle things on their own, you know.
Come on, let Onee-chan help you~ let me… help you~!"
Her voice trembled slightly as the youthful scent of the boy filled her senses.
"Yukinoshita will take care of it!"
Cornered, Hikigaya blurted out.
"Huh? Yukino-chan will take care of it?"
"Y-Yes…"
Hikigaya nodded, blushing furiously.
"Yukino-chan's such a proper girl.
How's she supposed to help you when she's on her period?
Don't tell me she's secretly… pretty aggressive in that department?"
Haruno raised her brows in surprise.
Hikigaya's face stayed red as he kept silent.
Haruno fell silent too.
For a moment, the atmosphere in the car turned heavy and awkward.
Finally, Hikigaya broke the silence.
"Haruno-san, let's drop this topic. Please… just drive."
"One-chan…"
Haruno's face dipped, her expression unreadable, but her two long, beautiful legs suddenly pressed tightly together. Very tightly.
"What's… wrong with you?"
Hikigaya caught a whiff of something ominous.
"Onee-chan wants to drive too, but…
but right now… onee-chan needs a little help from you, Hikigaya-kun."
"H-Help?"
Hikigaya asked cautiously,
"Haruno-san, if it's something within my ability… I'll do my best."
"Really?"
Haruno's eyes sparkled as she struggled to contain her excitement, lifting her flushed, delicate face.
—No, Haruno, you can't say it, you can't say it!
But why is Hikigaya-kun so irresistibly tempting today?
Why do I feel like I just want to devour him?!
Staring hungrily at Hikigaya's body, Haruno, surprisingly straightforward, blurted out:
"Hikigaya-kun, can you help onee-chan… take care of her needs?"
---
Meanwhile
After returning home, Yukinoshita rushed straight to the bathroom.
Her beloved husband was too good—she'd been holding it in for so long.
As she sat on the toilet, a voice echoed in her mind.
[System Alert: Yukinoshita Haruno has launched a further offensive on Hikigaya Hachiman. However, Hikigaya Hachiman remains too conservative. Big Sister Mission activated.]
[Big Sister Mission: Host must arrange for your blood-related older sister, Yukinoshita Haruno, and Hikigaya Hachiman to engage in one shamefully intimate interaction, touching each other's most important parts.]
[Time limit: 7 days]
[Reward: 2000 points]
"???"
Just as Yukinoshita was about to stand up, she froze and slumped back down, numb.
Is this mission… for real?! That's my actual sister!!