Grabbing My Yandere Childhood Friend by the Hips and Taking Her From Behind
I've already gone through three of the condoms Narae gave me.
They came in a bulk pack of fifty, but at this rate they'd be gone in no time. For someone my size, that kind of money adds up fast—not that I was complaining.
Still, there's no way I could just leave that glorious ass sitting there untouched.
Without a second thought, I rolled the condom onto my cock and approached Areum, who was presenting her rear to me, hips raised and waiting.
"I've pre-practiced everything—the position that will pleasure your cock the most, the angle to arch my back, even the exact moans to match. Please, don't hold back. Use my pussy as you see fit."
She grinned triumphantly and lowered her hips into the perfect position for me to take her.
It was, admittedly, a well-calculated pose—one that let her pussy press right up against my cock. She'd really gone all out preparing for this.
Well then. Here goes.
After doing it twice yesterday, this was still my first time having doggy style sex—actually mounting a girl from behind with her ass in full view. With Narae and Seol-ah, we'd both stuck to missionary.
Anyone who knew how weak I was for a girl's backside could guess exactly how much doggy style meant to me.
A woman trusting her partner enough to offer up her defenseless rear—that alone was plenty arousing. But doggy style's true greatness ran deeper still.
The rolling waves of that enormous ass rippling with every thrust, the way she desperately writhed to keep her shameless expression hidden, the puckered flower of her asshole right there before my eyes…
I can't take this anymore, goddamn it.
The simple fact that I was about to slam my cock into that massive rear made my mouth water on its own.
And Areum, despite being the youngest of the five, was a prodigy of development—her body outclassing everyone else's. If anyone could look at that and stay composed, they'd have to be impotent, a woman, or gay. One of the three, no exceptions.
"Here—I'm putting it in."
"Yes. I'll hold my pussy open with my hands, so feel free to shove it all the way inn—ah—?!"
Mid-sentence, the shock of my thick cock spearing into her tore a strangled cry out of her throat.
Then, as if mounting a counterattack, the soft folds of her inner walls coiled around my cock and began tightening, inch by inch.
"Ohh, fuuuck, that's tight…"
"Thank—you, ahnn… hhnnnn…"
It was a completely different dimension from the sumata with Dal-rae, sliding my cock between her thighs. That had been nice in its own way, but nothing could compare to actually burying yourself inside a hole.
Keeping up the piston motion, I looked down at her plump lower body—and there it was: the sight of a massive ass swallowing my cock whole. All twenty-plus centimeters of it, devoured perfectly.
Maybe it's because it's doggy style, but it feels like I'm going deeper than yesterday.
Come to think of it, I remembered reading somewhere online that doggy style was one of the positions that let a cock penetrate the deepest.
Part of it might be that Seol-ah's channel was narrow, but even compared to Narae—who had experience masturbating—it felt like my cock had far more room to move inside Areum.
Thanks to that, even with the condom on, I could feel the warm sheath of her pussy enveloping every last inch of me—a sensory experience of the highest order.
The feeling of grinding against her cervix again and again as I moved my hips. This was the kind of thing a man could get addicted to.

"Ah—h, haaah… hhnnn…"
She was fighting to suppress the shameless moans spilling out of her, unleashed by the sheer depth of my cock inside her.
She'd said she'd practiced her positions and her moaning beforehand, but a moan, by nature, is something that escapes when the body is overcome with pleasure.
Steering the moment exactly how you want it, that easily? Impossible.
Well, in her own head she probably wanted to let out something cuter.
In reality, though, all she could manage was a shameless string of "ahh-hahh" gasps, her body utterly unable to withstand my thick cock. As if she'd never imagined the pleasure could be this overwhelming.
And honestly? I much preferred her natural voice. Shameless or otherwise—there was no way Areum's moans could ever sound anything but adorable.
Watching my unflappable little sister lose her mind over the taste of my cock was an incredibly arousing sight in its own right.
…Maybe I should ease up on her a little, though?
If the pain outweighed the pleasure, then the whole point of sex disappeared. I didn't want this ending with me enjoying myself and her suffering through it.
So I pulled my hips back slightly and slowed my pace—but Areum seemed determined not to let me have it that way, clamping her pussy down hard and refusing to release my cock.
"Ngh, you don't need to hold back… I'm a strong woman, so please—let me keep feeling you just like this…"
"………"
Less concern for me, more her pride kicking in, probably. She seemed to be running on the conviction that she had to endure my thrusting to the very end.
"Okay, Areum—then I'm grabbing this ass."
And so, refusing to be outdone, I seized that enormous rear with both hands and began driving my hips hard, giving it to her without mercy—so I could hear her moans come out even more honest.
Smack— smack— smack—
"Ahh-hoooohh—?! Nnngh…!"
"Fuck, this feels incredible…"
The pleasure was so intense it felt like my cock was about to be sucked clean out of her ass.
She was clearly feeling plenty on her end too, letting out near-sobbing moans as she gripped the chair beside her for support and braced herself against my thrusts.
The sight of her ass rippling like ocean waves every time my hips slammed into it was, frankly, a masterpiece—
How many times had I dreamed of making this ass mine?
The girl who'd once been so tiny and slight had grown up into a body that could give a model a run for her money.
Every time she'd wiggled her hips in front of me in those skin-tight jeans, I'd fought down the urge to rub myself against her—so knowing that from now on I could bury myself in her whenever I wanted… the arousal just wouldn't settle.
"Haah, haah… I'm getting close. Mind if I go faster?"
The urge to come had crept up on me at some point, so I floated the suggestion, wanting to finish on a high note.
"Whatever… you want, ngh…! Oppa…!"
With that strained reply, Areum buried her head again, devoting herself to muffling her moans.
Permission granted—time to bring this to a close with everything I had, full-power pistoning.
Smack! Smack! Smack! Smack!
Her ass crashed against my hips again and again, each impact ripping a sharp crack through the air like something tearing apart.
So this was what it felt like to fuck a girl's ass from behind. I could do this every day for the rest of my life and never tire of it.
Spurt—!
"Nngh…!"
"S-something hot, deep inside…! Ahhhnn!"
In moments, the condom swelled near to bursting with my load, and the force of it made Areum's back arch dramatically.
Not that I could blame her—I was gripping her ass, buried to the hilt, my cock pressed deep against her womb.
"Uuu… God, I came so much."
Pop—
When I eased myself out of her, a mixture of the blood from her torn hymen, her juices, and the semen pooled in the condom began trickling down from her pussy.
"Uhehe…"
She must have felt incredible, because she stayed there with her ass still raised in the air, tears streaming down her face, babbling some unintelligible moan of pure bliss.
As a small reward for all her hard work, I pressed my lips to hers—her own lips—and gave her a long, deep kiss.
Several minutes passed, and by the time both of our lower halves had finally settled down—
Areum, ignoring my protests entirely, tipped the condom over her mouth and drank down every drop of the semen inside.
"Gulp, gulp… It really is your semen, Oppa. So thick, and so delicious."
"Uh… well, if you say so…"
How deep into love-brain did a girl have to fall to genuinely enjoy the taste of the stuff? Honestly, I couldn't wrap my head around it.

"Slurp, slurp… mwaa…"
After that, she gave me a cleanup blowjob, and bit by bit the cock that had been smeared with semen everywhere was polished back to spotless.
But wait—if you're just going to come again after the cleanup, doesn't the whole cleanup blowjob kind of lose its point?
That's the terrifying thing about post-nut clarity. It plunges you into deep philosophical struggles you'd never have dreamed of in your right mind.
Normally, after jerking off as much as I do, I don't get hit with existential dread from plain old masturbation—but this time, even I, a professional onanist, had to concede defeat.
It felt like this girl's ass had wrung every last drop of cum straight out of my balls. No wonder I was completely drained.
"By the way, doesn't your back hurt? Narae kept whining about how sore she was."
Taking my thick cock in doggy style for that long had to have put some serious strain on her back.
But Areum answered my question like it was nothing at all, my cock still between her lips.
"Slurp… I'm perfectly fine. Honestly, all I can feel is the joy of getting to have my first time with you, Oppa… gulp."
It was true that she'd been impressive—holding out against my thrusting, even stopping me when I'd tried to slow things down for her sake.
"Next time, I want to taste your raw cock, Oppa. Not like this, with my mouth—but with real sex. My bare pussy meeting your bare cock."
"…Raw sex is risky, I'll admit. But if it's a safe day, it'd definitely be worth trying."
If she were already on the pill, the odds of pregnancy would drop to practically zero. Then she wouldn't have to scramble for a morning-after pill the way Dal-rae did.
And if that worked out, the title of first-ever no-condom sex would go to Areum.
"Chwa—aaahp…"
"Whoa, I'm about to come again."
Her vacuum blowjob, sucking my cock in like it was being swallowed whole, wrung another load right out of me.