Playing Games with My Little Sister (2)
I slipped my cock under A-Yeon's panties with one hand and started rubbing against her again.
By now, there was no way A-Yeon didn't know exactly what I was doing to her.
We simply stayed silent, saying nothing as we played the game.
Except for the part where her ass was working hard to stimulate my cock as much as possible.
In the quiet living room, the only sounds that echoed were the wet, slippery noises of flesh rubbing against flesh and the lewd smacks of my hips thrusting while her elastic ass bounced against my pelvis.
Come to think of it, we're in the living room... Have I always been this bold?
I could feel A-Yeon desperately trying to hold back her moans.
She was so embarrassed that every time a sound slipped out, she buried her head even harder into my arm that was wrapped around her neck.
We kept rubbing like that for several more minutes between her panties and ass before I finally slid my cock right into the cleft of her pussy.
A-Yeon's face turned as red as a ripe tomato.
Her love juices clung stickily to my shaft. The mixture of my precum and semen coated her pussy, ass, and thighs, and the dripping fluids stretched from her panties like spiderwebs.
I could clearly feel the shape of her pussy lips as I continued rubbing endlessly in the silence.
The game controller had long since been abandoned.
I felt her body trembling. Her hips and shoulders shook noticeably, and her eyes were squeezed tightly shut.
Pssshhh♡! Pssht♡! Pff♡!
After one powerful climax, A-Yeon's hips jerked like a malfunctioning robot.
I could feel her pussy juices gushing over my cock, and she buried her face in my arm out of shame.
I felt like I was about to cum again too. Sorry, A-Yeon. Your big brother's going to cum one more time. That way it'll be less embarrassing, right?
Are there any siblings in the world with a better bond than us?
Cumming again just to soothe her embarrassment.
Still, I can't put it inside her.
I gripped my cock tightly with her panties inside her skirt, creating a double layer of fabric over it, and rubbed my shaft rapidly between her pussy lips.
-Schlick♡! Schlick-schlick♡! Shk♡! Shk♡! Shk♡!

The semen rising from beneath my smoothly gliding cock finally began to spurt out.
Spurt♡! Gush♡! Gush♡! Gush♡!
Even though it was wrapped in two layers of her clothing, the semen completely soaked through and threatened to burst out, so I simply covered my cock with the front of her skirt.
As a result, her lower belly and the front of her skirt became completely drenched in my cum.
I couldn't even begin to measure how much semen I was releasing anymore. The volume had grown absurdly large.
When I finally pulled my cock out, her skirt clung wetly to her lower belly from all the cum, creating a strange, obscene sight.
The sticky semen had practically glued her pelvis and skirt together.
Thick strands of my load dripped down the front and back of her thighs.
A-Yeon silently picked up the game controller again.
Picking up the controller in that state...
In contrast, I pulled her disheveled panties back up for her.
More precisely, I yanked the panties that had slid down during our rubbing all the way up over her skirt, pressing them so tightly against her pussy that it must have hurt.
"Hiiik♡...?"
She seemed startled by the unexpected sensation and my forceful action as I made her wear the cum-soaked panties.
She must have been shocked by her once-gentle brother's suddenly domineering behavior.
And above all, because I was tormenting her. In a very lewd way.
Sorry. Your big brother has these kinds of tastes.
Feeling a bit anxious about potential consequences, I decided to analyze the situation.
Let's not cross the line too far. This is insurance. That was my mindset.
After that, A-Yeon fiddled with the controller without any reaction, finished defeating my character, then suddenly stood up and went into her room.
"I ended up doing it again..."
Now there was no turning back.
Unlike last time, there was no way she could dismiss this as some mischievous prank by her brother.
If I left things like this, our relationship would be completely ruined. What if the shocked A-Yeon told our parents?
I'd be kicked out for sure. Or worse... Anyway, I couldn't just leave it like this.
I took a moment to organize my thoughts and tried to come up with something to say to my little sister.
But...
No matter how much I think about it, I can't come up with a single decent excuse!
There might not be any valid excuse for this situation.
The first time, I could claim she rubbed against me without knowing what she was doing and I couldn't help but cum.
But after that, it was me who deliberately rubbed my cock between her panties.
So... mutual fault?
I approached her room hesitantly, my heart heavy, and carefully opened the door.
Inside, I saw my little sister with the panties she'd been wearing pulled over her head, frantically masturbating.
Squelch♡! Squelch♡! Squelch♡! Squelch♡!
"O...Oppa♡...! Please..! Ahht♡...! Aaaahhhhhh♡♡!"
A-Yeon was violently masturbating while calling out my name.
What did she want me to do to her that she was calling for me so desperately?
"......"
I reflexively pulled back and quietly closed the door as if I had committed a crime.
I don't know anymore...
A-Yeon! A-Yeon! What the hell are you doing...
What the hell have I been doing to you...
Your big brother isn't the kind of person who does the things you want...
Did I turn my little sister into this?
It can't be entirely my fault, right?
My sweet little sister A-Yeon, who used to follow me around and adore me... now masturbating with a pair of panties soaked in the smelly cum I rubbed all over her after molesting her...
My head was spinning.
My thoughts were too tangled.
At least I didn't have to worry about her telling our parents.
But it was undeniable that our relationship had been completely destroyed.
Maybe the best thing I could do right now was to give her some time alone.
I had things to do too, so... yeah. Let's be considerate and let A-Yeon focus on her masturbation.
Since I might be entering a dungeon soon, I needed proper equipment.
Heavy armor like plate mail wasn't commonly worn unless you were a dedicated tank.
It was heavy, restricted movement, and expensive.
These days, most tanks preferred light clothing, supportive shoes, and shields with impact-dampening options, keeping their outfits comfortable.
Since I was a close-combat damage dealer, I figured a sword and shield would be enough.
I bought the officially certified beginner warrior package from the Hunter Association's supplied equipment and headed to my older sister's room.
Having learned the efficiency of the achievement system last time, this wasn't just about satisfying my sexual desires.
I really wanted to rest a little! Seriously...
But leveling up couldn't be helped... I had to work hard for it...
Sorry, sis.
I'll just use you as an experience point shuttle for a bit.
You've tormented me plenty until now... so it's fair, right?
It's all for your little brother's level up...
That said, I wanted to keep receiving her devoted service comfortably in the future. Was there a good way to ensure that?
It would probably be fine even without doing anything special right now, but since I'd been using the excuse that I loved her and thought she was pretty,
if I kept increasing the number of girls around me, she might rebel out of jealousy.
How could I make sure my sister wouldn't say a word even if I pumped my cum into other women?
While thinking about that, I figured if I framed the achievement system like it was a special trait and convinced her with that,
maybe she would gladly accept my semen.
Clack!
When I opened the door, I saw my older sister sitting in front of the computer with her mouth full of my cum, watching porn and masturbating.

I don't think I ever raised her sweetly, though.
If anyone raised us, it was Mom. Not you.
Though I guess it's true that I've been indulging her when it comes to my cock.
Why is everyone acting like this all of a sudden?
And if she's angry, why is she masturbating while cursing like that?
That time I really felt an overwhelming sense of conquest.
Out of all the vacuum cleaners I've seen, none were better than my sister...
Sorry, sis...
Even I have to admit that's pretty harsh.
Wait, does she know I'm here?
It feels like she's doing this on purpose to turn me on.
I should stay quiet and keep listening a little longer.
The more I listened, the stranger and better I felt.