Slosh.
As I helped Jimin up, the sight of her full breasts swaying enticingly beneath her shirt made me flinch.
Did she undo her bra because it was uncomfortable?
Before I could even process it, she leaned her body against me, panting softly.
"Ugh... I believe in you, my little brother..."
"Just lie down."
Jimin staggered slightly as I guided her to the bed before collapsing onto it with a sigh.
"Ahhh~ Yujin's girlfriend~ Hi?"
"GYAAAH!"
I turned and saw her greeting the fleshlight I'd left on the bed, its pussy hole staring right back at her.
"I'm Yujin's noona~~ Nice to meet you."
"She's not my girlfriend!!"
"You don't put it in her, do you~? Shouldn't you stick it in the hole?"
"I-I don't need to!"
"Kyaha-ha!"
Getting caught with a fleshlight was embarrassing enough, but being teased about it was a whole new level of humiliation.
Jimin lay down beside the fleshlight, still positioned as if mounted, and quickly fell asleep, completely at ease, as if forgetting she was in a guy's room.
'She must not see me as a man at all…'
I tried hard to forget the lingering sensation of her soft skin against mine.
I had planned to do something else until I got sleepy, but the longer I lounged on the sofa, the more awake I became.
And the harder my cock got.
No. No, no, no.
Even if this was a trash game, it was too early to hit the quit button.
I should just watch some PornTub and calm down.
But when I opened the app, I froze.
The algorithm had been completely taken over by videos of guys flaunting their dicks and manboobs, absolute garbage.
"What the fuck is this?"
No matter how much I scrolled, it kept recommending the same crap. I reset the algorithm in frustration.
I absentmindedly stroked my cock while scrolling through Shorts, but none of the videos did anything for me. I sighed.
Nothing else could hold my attention.
Not when the ultimate dopamine trigger was lying right there on my bed.
Soft, plump hips, something a loser like me should never have access to.
Before I knew it, I was standing over my sleeping noona, cock fully erect.
"Noona. Wake up."
If she doesn't, I'll just fuck her?
A shut-in like me has no patience.
If I were strong-willed enough to make life plans and stick to them… I wouldn't have chosen this dopamine-chasing existence in the first place!
Swish, swish-swish!!
I gave in to my primal instincts, stroking myself as I stared at her.
I reached out and groped her ass!
Dopamine, BOOM!
Unbelievably soft. Unbelievably big.
I'd thought it looked huge under her skirt, but seeing it up close was something else entirely.
Every onahole I'd ever used was nothing but cheap silicone in comparison.
The ones I owned were designed for portability, so they were smaller, but seeing them side by side only emphasized how real hers was.
"Noona, are you asleep?" I whispered.
Well, if she's asleep, she won't notice, right?
I turned her onto her side, gripping her ass roughly, kneading it without any shame.
When I tugged slightly at her inner thigh, the soft flesh shifted, revealing a glimpse of smooth, hairless pussy through the side of her panties.
'No hair.'
Noona got a wax.
Completely bare. Was she preparing herself for a future husband?
But as far as I knew, she didn't have a boyfriend…
Sniff, sniff.
I couldn't tell if she was a virgin, but there was no scent at all.
When I spread her slightly, her hole looked really small and tight, barely enough to fit a pinky.
She's definitely a virgin…!
I want to fuck her. I want to push inside her.
I wish I could be the first cock Jimin ever feels.
My thoughts were spiraling further from reality. If I just borrow her hole while she's drunk… wouldn't that be okay?
'No, it wouldn't!!'
One hit of dopamine, and I could lose everything.
Her marriage could be ruined. She might end up pregnant with my kid.
Pregnant with my kid?
Jimin Noona?
My cock throbbed violently, getting harder than ever.
With this much dopamine… maybe it's worth it!
Since my sister is so kind, maybe I can rely on her a bit.
Instead of depending on my parents, I'll just lean on my sister for support!
Thump-thump.
'If it's Noona… I'd be happy.'
Jimin Noona is beautiful. Big tits, wide hips, a tiny waist.
She doesn't do pilates or yoga, how does she have this kind of body naturally?
Sluurp! Sluurp! Sluurp! Sluurp!~♥
"Mmm… nngh…"
I buried my face between her buttocks and started licking her small hole.
If I wanted to fuck her, I had to get her wet first.
Remembering something I'd seen before, I flicked my tongue against her clit rapidly. Noona's hips and ass twitched in response.
"Ah… Ah…"
Her ass swayed like she was dancing.
She was definitely feeling good, getting more sensitive by the second.
No, wait… she's way more responsive than I expected. Her pussy was soaking wet already.
Was she really that lonely?
The moment I thought that, I gripped Jimin Noona's thick ass, watching it jerk with every lick.
With my cock rock-hard, I lapped at her faster, prepping her for what was coming next.
Any hesitation I had was long gone.
All I could think about was her pussy.
Noona's pussy, Noona's pussy, Noona's pussy…
Lick! Lick! Lick! Lick!
"Nngh… Nn! Ngh!~♥"
Finally, my sister's pussy was ready to take my cock.
But the moment I positioned myself between her legs, looking down at her face,
Memories of our time together as family flooded my mind, twisting my thoughts into chaos.
"Yujin… ah…"
Her drowsy murmur was the final blow.
The overflowing nostalgia of our childhood.
Even if we weren't related by blood, this kind of thing… wasn't something anyone would approve.
It's something only animals would do.
And humans are also animals.
I wrapped noona's upper body tightly in the blanket.
"Mmm. Mmm."
Covering her face— good.
Leaving only her pussy and her slender legs, the memories wouldn't get in the way.
After some back-and-forth wrestling, I flipped her onto her stomach into a doggy position and made her raise her hips.
Everything was ready.
Stroking my cock slowly, I pressed it against her ass...
'Ugh… Still.'
Even so, the moment I tried to insert it, I felt this pang of guilt…
Was crossing this line really such a difficult thing?!
'It's her fault for letting her guard down on the last day.'
I tried to rationalize it.
Right in front of me, her big ass twitched with the lingering pleasure of the pussy-licking I'd given her earlier, my cock now pressing firmly against it.
It felt like if I tried, I could push in.
"Ugh... I believe in you, my little brother..."
I really was a loser. I didn't have the courage to go through with it.
So…
"Help me out, Rei."
I decided to borrow the power of my onahole, Rei.
I'd bought it because it was advertised as a "big ass" model, but compared to the real thing in front of me, it was just a tiny toy.
I placed it beside my sister, who was still lying face down.
As usual, I applied lube to my cock and inserted it into the onahole, stretching
Looking at my sister's divine ass like a miser, I began thrusting…
Thrust! Thrust! Thrust! Thrust!~
"…What're you doing?"
Drunk, my sister loosened the blanket cocoon and peeked out, tilting her head to look at me.
"Using my onahole to masturbate."
"…Ona-hole? Hehe. You're so cute."
She was so drunk after just three beers, adorable…
While she watched, I kept thrusting into the toy, then suddenly I pulled my cock out.
And I boldly repositioning myself behind her big ass, I pressed the tip of my cock against her pussy.
Smooch♥♥
"Huh?"
Not letting her move away as she sensed something was off, I gripped her waist tightly and thrust deep into her pussy!
Squelch-squelch-squelch!!
"Ah! A mistake!"
"Ah… Huh? Wha...?"
While masturbating with the onahole, I'd accidentally slipped into my sister's pussy right beside me!
Her surprised pussy clenched around my cock, tight. The feeling of my fully hard shaft splitting her tight, wet flesh was unimaginably good.
Dopamine!! No… something dangerous was flooding my brain...ahhh…!!
I stayed buried inside her, my hips firmly pressed against her ass.
Squeeze! Squeeze!~♥
I'd heard you should give the pussy time to adjust before moving, so it wouldn't hurt… ♡
"Yujin…?"
At the sound of my sister's drowsy voice, my cock swelled to the point of bursting.
"Sorry! A mistake~★"
Thrust-thrust-thrust♡
Channeling the cheerful energy of a true loser, I cheerfully pretended it was all an accident as I plowed into my sister's pussy.
"Ah, ah!? How is fucking your sister a mistake!?"
Startled by the sudden backshots, Jimin tensed her thick thighs and ass.
Amazingly, even her inner muscles synchronized, squeezing all at once, it was insane.
"I was masturbating with my onahole and accidentally slipped into your pussy. What can I do?"
Squelch-squelch-squelch♡♡
"Nn, ahh...huh? Wha...? A mistake? This is a mistake?"
Unable to process the situation, still under the influence of alcohol, she panted helplessly as I held her down and fucked her pussy with all my strength!
"I need to finish what I started, so I'll borrow your pussy for a bit!!"
Squelch! Squelch! Squelch! Squelch! Squelch! ~
Her soaking, hot walls clung to my cock, squeezing as if begging me not to pull out.
Goddamn… No onahole could compare to this, my sister's pussy was amazing...!!
Thrust!
"Oh, oh-what!?"
"Just a moment. I'm just borrowing your pussy for a bit instead of the onahole!"
Shifting the guilt onto the onahole was a brilliant strategy.
Like in movies where shamans sacrifice pigs or chickens during rituals, it's the same idea.
With the mindset that I'd just been using the onahole and happened to slip into my sister's pussy, I tossed the onahole under the bed and fucked her with everything I had!
Pound-pound-pound-pound!!
"Nnnghh…!!"
The absurd excuse of using her pussy as an onahole bought me time to keep thrusting…!!
"Ah, fuck...something dangerous is happening in my brain… My dream girl… Jimin's fat ass…!"
Pound-pound-pound-pound!!
Helpless against my relentless thrusts, Jimin could only squeeze her pussy around my cock.
Clench… clench…
Whether from alcohol or sleepiness, she barely resisted as I pressed my hips firmly against her and fucked her hard.
The once-in-a-lifetime dopamine of fucking my sister was hitting me...ahhh!!
"Ah, ah, ah!"
"I'm going to cum right in your pussy! Sister, get pregnant with my baby and ruin your Marriage!"
The word "pregnant" made Jimin's pussy tighten even more.
Clench… clench… ♡
Pound-pound-pound♡
"Get pregnant with my baby! Get pregnant with the sperm of your loser brother!"
"Ngh, ah—haah! Hah…! Calm down… go slow… inside my pussy… ahh…!!"
Straining, her sweat-slick body trembling, she put up a resistance that wasn't really resistance.
When she tried to shake her hips and push me out, I held her down and thrust deeper.
I was born to cum inside this god-tier pussy…!!
"Get pregnant! Get pregnant!"
Ahhh... Jimin's pussy is too good… ♡
Slap! slap! Slap! slap! Slap! slap...!
I pressed my hips against Jimin's big ass and rocked into her fast.
I'm cumming. I'm really gonna fill my sister's pussy…!
Squelch! squelch! squelch! squelch!~♥
How is her pussy this good!?
I can't stop fucking her!
"Ngh, ah, ah!"
Every time I thrust, Jimin let out short, startled moans, completely overwhelmed.
Clench… clench… ♡
Sex… we're having sex… The awkward excuse from the beginning was already forgotten altogether.
After that, I fucked her with a steady rhythm, slamming against her fat ass, taming her pussy with my cock.
Thrust♥ Thrust♥ Thrust♥
"Hah… Nnngh♥"
Jimin let out a sob-like whimper, swallowing hard.
My sister's cumming on my cock…!
"Noona...! I'm going to recklessly cum in your pussy...!!"
"Nn...ahh…!"