The Second Sister, Baek Mina
I knew who it was even before I heard her voice.
It was a voice overflowing with playfulness and confidence.
It was my second sister, Baek Mina.
As I turned my head toward the sound, she approached with an intrigued expression, just as I’d expected.
Short, golden hair and deliciously tanned, copper-colored skin.
True to her love for exercise, she had defined 11-line abs visible beneath her crop top, and incredible thighs wrapped in leggings.
She was the very archetype of a dominant, delinquent-style older sister—a true gal.
She was the type who liked to take the lead in everything she did.
I couldn't help but wonder: what was she like in bed?
The thought crossed my mind before I could stop it.
"Doing something fun since the morning, huh?"
Perhaps she heard that voice. Anna, finally coming to her senses, stood up cautiously and began to clean up the traces of herself she’d spilled below.
Regardless, my sister’s gaze was fixed firmly on my cock.
"What are you doing up so early, Noona?"
I asked nonchalantly, not even bothering to cover myself. She scoffed.
"The smell of your pre-cum is wafting all the way to my room. I couldn't exactly stay asleep."
So that was why she’d been sniffing the air earlier.
Wait, did that mean she’d smelled it even while I was in the middle of masturbating?
Just as I was getting goosebumps at the appearance of a woman who could detect semen better than a drug-sniffing dog:
"You. Wait in your room after lunch. Got it?"
"U-uh? Why?"
I asked, slightly intimidated by her sudden command.
Was I going to get scolded?
"I want a taste, too."
She turned around with that short reply. Seeing her throw on a jacket, it looked like she was heading out to work out.
Her tone was so confident, as if to say, What’s the problem with me eating what’s mine?, that I found myself nodding in agreement before I knew it.
"Okay. But why my room?"
"Because your room is the biggest in this house."
"...Alright. Go ahead."
"Young Lady, you know the rules, right?"
Anna spoke up as my sister was about to head out with a light step.
There were no specifics mentioned, but both my sister and I understood what she meant.
It meant I wasn't allowed to ejaculate.
"Ugh, I know, I know."
Mina-noona answered irritably and stepped out the door, and Anna began her housework in earnest.
I thought about enjoying some more risky fun with Anna, but I decided against it, remembering what my sister had called me for.
What kind of things would she do to me?
A mix of slight nervousness and massive anticipation swirled within me.
The rest of the day was peaceful.
Anna returned to being the usual caring maid, and I didn't provoke her further.
After eating and brushing my teeth, I returned to my room and lay on the bed.
My room is the largest in this mansion. The bed was spacious, and there was even a private bathroom inside.
You don't need me to tell you why I use this room instead of Mother, the head of the household.
Bang!
Just then, the door swung open without a knock, and Mina-noona walked in.
"You waited patiently just like I said, didn't you?"
"When have you ever seen me disobey you?"
Her sharp eyes curved into crescents at my answer.
Satisfied that my attitude and response were to her liking, she immediately began to undress.
Jiggle!
She was freed from her restrictive training clothes, but my gaze was immediately drawn to her poor, massive breasts still trapped in her bra.
Just as she was about to unfasten that underwear, she noticed my eyes fixed on her chest and gave a wicked smile.
"Hmm? You want to see? My bare breasts?"
I nodded fiercely without a moment's hesitation.
"Haha, no way."
With that, she approached me, still wearing only her bra and her workout leggings.
She pulled back the blanket I was covered with and looked at me with approval.
"You weren't wearing anything? Good boy."
"Well, I mean..."
It was obvious why she told me to wait in my room.
But I kept my mouth shut, afraid she’d tell me not to get my hopes up if I were too honest.
Sniff, sniff.
"Noona, you didn't wash up?"
She answered my question with confidence.
"You like my scent, don't you?"
Perhaps because they were succubi, their superiority wasn't limited to just their looks.
Any means of seducing a man was several steps more evolved than that of an ordinary human.
That was true for their scent as well.
They always smelled good, but their sweat and other bodily fluids carried such a potent pheromone scent that it was more exciting than it was unpleasant.
"Sniff, sniff. I guess that's true."
The fact that my nose reacted before my brain was proof enough.
My cock stood tall toward the sky again, and my sister looked at my erection, clearly satisfied with her choice.
"When did Mother say she was coming home today?"
"Hmm, I'm not exactly sure. But it sounded like she'd be home earlier than usual."
She checked her watch at my answer and nodded.
"Then we have about three hours left? Plenty of time."
Mina-noona sat between my legs as if it were her natural place.
Swoosh.
She then stroked the shaft of my cock with her long index finger.
Even though it was winter, her fingers, warmed by the heat of her workout, felt wonderful.
"Since we can't have sex and you can't cum, I guess we have no choice. We're going to play a game."
"A-a game?"
My voice trembled pleasantly, which seemed to increase her own excitement.
Grin!
The smile at the corner of her mouth deepened.
Actually, was there ever a time they weren't excited? At least, the ones I knew were always in heat.
"You've never seen me naked, right? If you win this game, I might let you see, or even touch. How about it, want to play?"
She asked, but my opinion didn't really matter.
Before I could even nod, she recited the rules of the game.
"You just have to hold back your ejaculation for as long as possible. But don't try to force it, okay? If you cum for no reason... something bad will happen."
"...? Okay."
I nodded obediently.
"Every time you endure 10 minutes of foreplay, I'll take off one piece of clothing. And the moment I have nothing left to take off, I lose. After that, you can do whatever you want—suck, lick, anything."
I stared blankly, imagining the scenario.
A blonde, tanned gal. She hadn't actually caused any major trouble, but her image was perfect for the role.
Combined with her overwhelming beauty and body.
I imagined such a woman moaning and spilling her juices all over my hands.
'I cannot lose this game.'
I wanted to turn her, who had always lived as a predator, into my prey.
"Ho-oh."
My sister must have felt my resolve. As if to say there was no need to wait any longer, she set a timer and immediately began to stroke my cock.
"Let's start light with my hands."
Squish, squelch!
The foreplay had only just begun.
The pre-cum that had been leaking out because I couldn't hold it back started to pour out like a flood the moment she began to stroke me in earnest.
Thanks to that, it felt as sticky and slimy as if she’d applied love gel to my cock.
Mina-noona’s hand gripped my cock and moved slowly up and down.
Squelch. Squelch.
"Kuh...!"
I wanted to enjoy the touch leisurely, but I also wanted her to shake it harder.
Her eyes were staring straight at me, as if to gauge my reaction.
It was strangely burdensome, but also exciting, as if I were masturbating in front of a beautiful woman.
"Is it here? Or here? Where is our little brother's weak spot?"
Mina-noona’s pretty, long fingers roamed all over my cock.
Even though she was moving to find a weak spot, my cock writhed wherever she touched, as if every inch of it were a weak spot.
Knead, knead.
When her left hand stroked my balls, my mind went blank.
My balls were swollen from being forbidden to ejaculate for a year.
Since I’d never touched them myself, I learned for the first time that men could feel pleasure through their balls, too.
"You're impressive, little brother...♥. I'm so looking forward to tomorrow."
And when she curled her index finger and thumb to wrap around my glans and focused on rubbing just that part, it felt like electricity was flowing through my brain.
Squish-squish-squish-squish!
"Hng...!"
My waist arched from the dizzying pleasure, and because of that, her entire palm