Little Sister's Pussy

I lock the door.

My little sister stands there in pink dolphin shorts, flaunting an ass so fine it makes my cock throb on sight. That ass is fucking enormous. The memory of what happened earlier today comes flooding back, and blood surges hard into my dick.

I slip up behind her and pull her into a tight embrace. My big brother's cock, veins standing out, buries itself against her ass right through our clothes. A dizzying rush of lust scrapes through my skull and a soft moan slips out of me before I can stop it.

"Seongjun..."

"Yeah, Dain... fuck, your skin's so goddamn soft... haah..."

"Come on, let go already... we haven't even taken our clothes off..."

"Hehe... so you wanna strip down and fuck bare?"

I grind my hips in slow circles against her, clockwise, feeling every soft, springy inch of my little sister's ass through my cock. I huff hot breath against her neck. Dain's body twitches, just barely. I lean in and whisper right into her ear.

"You wanted big bro's cock that bad? Dragging me straight into the room the second we got home... hmm?"

"You're one to talk... you're the one who said you wanted to do it first..."

"Hehe... should we get naked first, then? Arms up."

My little sister obeys without a fight. She lifts both arms over her head. I yank her T-shirt off in one pull and fling it aside, then unhook her bra and toss that to the floor too. My hands close around the soft swell of her tits and start kneading. All the while my hips keep circling against her ass. My cock is wound so tight it's almost painful.

"Nnngh...! Seongjun, haah...! Haah...!"

"Yeah, feels good, doesn't it? Your nipples are standing straight up... Dain..."

"Your cock got so fucking big too... is that because of me?"

"Yeah. The second I thought about fucking my little sister's pussy, it just shot up..."

"Seongjun..."

"Yeah, Dain..."

She twists her head around. I meet her eyes head-on — already flushed red. She sticks her tongue straight out. I meet it halfway. Her throat works with a wet swallow. The slick sounds of our tongues fill the room as I sink into a deep, filthy kiss.

My hands slide lower. I hook the hem of her dolphin shorts and yank them down together with her panties in one hard pull. My hands shoot out and grab each cheek of that watermelon-sized ass, kneading the soft flesh.

"Haah...! Haah...!"

"Fuck, it's so soft... shit. All the blood's rushing into big bro's cock — feels like it's gonna explode."

"Do I turn you on that much...?"

"Yeah. You know you do. Bet guys try to get your number on the street all the time, right?"

"Not really..."

"Getting shy, huh? Fucking adorable... hehe... now you strip me too."

I tip my head back a little. A long string of spit stretches between her lips and mine; I curl my tongue and snap it. Breathing hard, my little sister turns to face her big brother. She carefully peels off my T-shirt, pants, and underwear. My rock-hard cock springs free like a coiled spring and nods toward her, a thick bead of precum already sliding down the shaft.

She wraps her hand around it without the slightest hesitation. I just stand there and savor the feel of my little sister's grip.

"Fuck, it's huge... Seongjun... it's even longer than when I saw it earlier today..."

"No way... a cock doesn't grow that fast. It's just that hard because of you..."

"Haah... haah... Seongjun. You're not going to touch Mom, right?"

"Huh? Where the hell did that come from... I thought we already settled that clean."

"I don't know... it just felt wrong, so I wanted to hear it again..."

"......"

"You fucking bastard. You lied?"

"Haa... Dain. Listen carefully to what I'm about to say. I will never give Hayeong my heart."

"What?"

"I'm going to fuck Hayeong's pussy. With this cock!"

I flex and make my dick bob for emphasis, laying the truth out for my little sister without any sugarcoating. Dain's eyes go round. She starts shaking her head, slow.

I grab her by the waist and tip her back onto the bed in one smooth motion, then climb on top of her belly. I shove myself down between her thighs, draw my hips back, and push forward slow. My veined big-brother cock mashes flat against the soft give of her stomach. She's still holding onto my dick. Our eyes lock.

"What the fuck is that supposed to mean, you piece of shit."

"Your mouth got real filthy all of a sudden. That the real you?"

"Just answer the goddamn question... what do you mean."

"I already told you. I'm going to fuck Hayeong's pussy... but I won't give her my heart."

"You crazy bastard!"

"Yeah, I'm crazy... the bastard obsessed with his own mom's cunt is me. Lee Seongjun!"

"Seongjun, why the hell would you do that? Am I not enough for you?"

I reach sideways, snatch the phone I'd left at the corner of the bed, and start tapping hard. I pull up the video of Minjeong and her son going at it, calling each other Mom and son the whole time, and hold it right in front of Dain's face.

Flesh smacks against flesh on the screen. A thick, veined cock pistons in and out of a dripping hole without pause. Pussy juice runs in sticky strings.

My little sister's mouth hangs open. She can't look away from the screen. It's a video of a mother and son fucking while calling each other exactly that — though of course it isn't our real mom, Hayeong.

I draw my hips back and push forward again, slow. Then again.

"What is this... don't tell me...?"

"Hehe... no need to freak out, Dain... you can tell just by looking, right? That's not Hayeong."

"Then why is he calling her Mom?"

"Because that fucking slut wants to get railed by her own son too. It's roleplay."

Dain's body gives another tiny twitch. She reacted. She stares, dazed, at her big brother's cock driving down hard — or maybe it's the Mom-and-son dirty talk that's got her worked up. A damp, humid heat seeps against the tip of my balls.

I prop the phone at an angle, push myself up, and grab each of her smooth legs. I spread them wide. Under the thick thatch of pussy hair, my little sister's cunt peels open and locks dead-center in her big brother's eyes.

"Haah... fuck, that looks delicious. Little sister pussy..."

"Seongjun, are you really going to do it with Mom...? Can't you just not...?"

"Yeah. My mind's already made up. I have to fuck Mom's pussy. No exceptions."

"Why...? You can just do it with me... it's not too late... please don't touch Mom... Seongjun..."

I hook her legs over my shoulders one at a time, shove my hands into the crease of her thighs, and fist the bedsheet tight to pin her down. I stretch my own legs back and open her wide. My throbbing cock kisses the entrance of my little sister's hole — just resting there, barely notched in. Soft moans slip from both our mouths.

"I want to fuck it. Hayeong's pussy..."

"And what does 'I won't give her my heart' even mean...?"

"It means even if I fuck her cunt, I won't tell her I love her the way I tell you... Dain..."

"You're a sick bastard... you know that...?"

"Yeah. That's why I already fucked my little sister's pussy too. And pretty soon I'm fucking Mom's as well..."

"The promise you just made... you're not going to break that one too, right...? If you do... I might actually die..."

"Yeah. If I break it, wrap your own hands around my throat and kill me. I won't even fight it."

"Haah... Oppa..."

"Hehe... now you're calling me Oppa?"

"Your cock is so hot and hard..."

"Well yeah — I've got it sitting right on my little sister's pussy hole..."

"Put it in... I don't want to talk about Mom anymore... I'll trust you, Seongjun..."

I lift my hips high, line my veined big-brother cock up dead on her entrance, and drive it home.

Thwack!!!!!

My cock sinks straight into the split of her cuntlips. Groin slams into groin. A raw, wet friction sound rips through the room. I bury myself to the root in one stroke. Like it had been waiting, the bumpy inner walls of my little sister's pussy wrap every inch of my cock, clamp down, and start chewing on it.

I throw everything I've got into my hips.

Thwack! Thwack! Thwack! Thwack! Thwack!

I pound into her like ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠I'm trying to break the bed. Pussy juice starts welling up almost immediately, thick fluid leaking out wherever cock and cunt meet, stretching in ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠long sticky strings every time I lift my hips — tethering us together.

Our eyes lock. Belly presses to belly. I keep spearing my cock through her pussy. She clings to her big brother's back with both hands and holds on tight.

"Nnngh...! Seongjun...! Ahhngh...!"

"Haah...! Haah...! It's okay if I fuck Hayeong's pussy, right? Say it, Dain...!"

"I don't know, nnngh...! Ahang!! Nnghh!! Aaaang...!"

"Answer me. Is it okay if the same big-bro cock that's fucking your pussy right now rams into Mom's cunt too?!"

"Do whatever you want, Seongjun... just don't give her your heart... keep the promise...! Nnngh...! Ang-ang-ang!! It feels so good... Oppa...!"

"Nngh...! Fuck, your pussy's biting down so tight... thank you...! I swear I'll keep the promise!!"

I pick up the pace. More juice pours out of her; the wet squelching fills the room. The hair around my cock and her pussy is soaked through. The urge to cum surges up hard. Inside my little sister's cunt, her big brother's cock swells like it's about to burst.

"Ughhaah!!"

"Nnghh!!"

An insane pressure clamps down on my dick. Her ass clenched at the exact moment I bottomed out. I'd already felt like my cock was melting into her — I duck my head and check. Thankfully it didn't get squeezed out.

"Fuck, I thought my dick was gonna snap off... huh?"

"Haah...! Haah...! Shut up and just keep going!! You bastard!!"

"You sulking? You've been cussing me out this whole time... what, you trying to piss me off?"

"You deserve every bit of it... you know that? How the fuck can you tell me you're going to touch Mom..."

"Hehe... so that's what this is about? Don't worry... real Mom's pussy is just something I fuck when I'm bored... the one I love is you!"

I stick my tongue straight out and shove it against her lips. She resists for a second, then meets me with her own tongue. We sink into another deep, sloppy kiss.

I can't hold back anymore. I lift my hips high — her pussy lips cling and drag along the whole length of my shaft as I pull out — then slam back down with everything I have.

Thwack!!!!!

A friction sound like something tearing rips through the air. Both our heads snap back at the same time. Our mouths fall wide open, foamy spit running down our chins. I've buried my cock to the hilt. There's a slick, yielding sensation, ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠and then the head of my dick gets sucked somewhere deeper.

My little sister's womb.

From the base of my balls, up through the shaft, past the head — cum blasts out of me in hard, pulsing jets.

"Nnnnnngh!!"

"Ahaaaaang!!"

The two of us cling to each other and shudder, locked tight. My big brother's back arches like a drawn bow as I shove even deeper, cock still buried root-deep. Her pussy feels unreal. My dick keeps twitching and pulsing, pumping ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠my little sister's insides full of big-brother cum. A warm, thick heat washes over the head of my cock.

I pant hard and drop my face straight into her tits. Soft. Plush. I nuzzle into them and rub my face around.