Fury's Defeat: Mari's Rampage
Mari looked down at Seo-yoon pinned beneath her and swallowed hard with a gulp. Seo-yoon had always had a slutty body, but seeing it for the first time in doggy style brought a whole new appreciation. The massive ass and hips pressed tight against her pubic bone, the taut waist without an ounce of flab, and the sharply defined 11-shaped abs that tensed and relaxed with effort.
"Alright, I'm gonna move now...?"
"Eek...♡"
Seo-yoon, already melting from the full insertion alone, clutched the bedsheets and barely managed a nod, on the verge of collapse. When Mari lightly released her grip on Seo-yoon's waist and trailed her fingers down her back, it was like an electric shock—Seo-yoon's back arched straight with a sharp snap, her muscles tensing instantly. At the same time, the already clingy, chewy walls of her pussy clamped down from all sides, squeezing Mari's cock relentlessly.
"Nghh, Seo-yoon, you're squeezing too tight...♡"
Mari had confidently seduced her and even thrust in, but now that she was buried deep, she gritted her teeth to hold back the surging urge to cum. Unfamiliar muscles strained to keep the bubbling semen from her balls at bay, her toes curling as she fought the building pressure.
"Haa, haa..."
Tzubooo—as she slowly pulled her hips back, Seo-yoon's pussy lips clung desperately, reluctant to let go. Tzuk!—shoving it back in halfway with a lewd squelch, the drenched folds parted with obscene sounds. Was it the unfamiliar position? The sensation of her friend's pussy felt entirely new around her cock. The impulse to grab that firm waist, piston wildly, and unload raged inside her.
Still, she clenched her jaw and pistoned slowly, purely out of pride.
"Huu, Kang Seo-yoon, you okay...?"
Mari had been the first to lay hands on Seo-yoon, so it was her responsibility to make sure Seo-yoon came too. It wasn't just about her own pleasure—Seo-yoon, who had so obediently offered her body, deserved to feel good as well. She couldn't see her face from this angle, gripping those hips and pounding away, but the ragged breaths suggested it was as good as missionary. Thankfully.
"Hnggg, yeah... this position feels good...♡"
Seo-yoon glanced back just enough to meet Mari's eyes and murmured it. Her half-lidded gaze spun lazily—no lie there. Saliva drooled from her gaping mouth. It was the face of a bitch in heat, one Mari had never seen in missionary.
Good, I'm getting the hang of it now...
Mari started moving her hips again.
Plap plap—
"Hnght, haaaa...♡"
Sweat-slick ass met Mari's groin with wet slaps. Every thrust out and in unleashed a flood of juices like a dam breaking, soaking Mari's belly. With this much lube, it should've been smooth sailing, but Seo-yoon's pussy clung so viciously that Mari's fingertips tingled with overstimulation.
"Seo-yoon, you like it that much?"
"Love it, Mari feels so good...♡"
In missionary, Mari could never hilt fully no matter how hard she tried, but doggy let her reach untouched depths. It was unfamiliar ecstasy for both the one thrusting and the one taking it, leaving no room for leisure. Drenched in sweat and fluids, the two moved as one slippery entity. Mari gripped those slick cheeks hard, and in response, the pussy clenched tighter, milking her cock.
"Hrgh...!"
Caught off-guard by the sudden squeeze, Mari collapsed onto Seo-yoon's back and erupted.
Spurt, spluuurt—!
"Ooh, ooohhh...♡"
"Nghhh, too tight...!"
Her hips bucked wildly out of control, slamming the cock in balls-deep like mating dogs. Even mid-orgasm, Seo-yoon's pussy milked relentlessly, determined to wring out every drop. Seo-yoon shuddered face-down into the mattress, climaxing in sync— the deep-thrust cock blasted semen straight against her cervix.
Tzub, tzubup, tzubop—after the long release, Mari carefully withdrew. The still-twitching pussy resisted, but she couldn't stay buried forever. Pop!—it caught at the entrance, bloated with cum, until she tugged it free with her hand, eliciting a cheeky sound.
"Haa, haa..."
Mari tied off the used condom, still buzzing from the afterglow, and tossed it aside. It was mind-blowing how much cum her body could produce.
"Mari..."
"Yeah? I wasn't too rough, right?"
"More..."
"More?"
"You can keep going, right? ♡"
Strands of hair clung to her sweat-drenched face. It might've looked sexy normally, but Mari felt an inexplicable chill. Still, with her ass thrust high, twitching and squirting intermittently—splurt, spluuurt—it was more than enough to get her hard again.
"Hell yeah. Leave it to me."
Rip—Mari tore open a fresh condom, rolled it on, and grabbed those cheeks. The sweat made them stick perfectly to her palms. Without thinking, she raised her hand and smack!
Slap!
"Eeeeek♡"
By the time she snapped out of it, Seo-yoon's ass was already reddening. Her cock wasn't even in yet, but Seo-yoon's hips tensed, squirting splish splish—a light orgasm from the spank alone.
"W-why...?"
"...It looked too spankable."
"Sheesh..."
The handprint bloomed red, and Seo-yoon's ears flushed crimson—impossibly so. She clearly hadn't expected to cum from a spanking, her whine dripping with embarrassment.
"Sorry. I'll go easy this time."
"...Give it."
"Huh? What?"
"When you do me from behind... be rough..."
"—"
That snapped Mari's last thread of restraint.
"Kang Seo-yoon!!!"
"Heek, eek, grk...♡"
Mari seized Seo-yoon's arms and rammed her cock in savagely, hips pistoning. No more "consideration"—purely for her own pleasure. Pang, pang, pang—treating her not as a woman, but a bitch, a warm hole for bliss. Thud, thud, thud—tzuk, tzuk, tzukeerrk—pinned and helpless, Seo-yoon's body shook mercilessly. Massive tits, firm ass—all jiggled lewdly with every thrust.
"Kehk, hrgh, hngggg...♡"
Thump, thump, thump—
Beast-mode, devouring each other's bodies without reason.
"Hngh, hnghk, cumming...!"
"...♡"
Mari crushed Seo-yoon's waist in a bear hug, snapped her hips up with a thunk, and buried deep. The pussy clamped vise-like, wringing her cock.

Blurt, bluuuurt—splurt, spluuuurb—lost to human speech, they drowned in ecstasy for ages. Meanwhile, Mari's phone was still on the call.
* * *
"Hoo, hoo—"
"S-Seo-yoon..."
It had been an hour since Mari called. Yu-hyun sat there, cock throbbing rock-hard, unable to do anything but listen to the filthy sounds over the phone.
"Haa. Haa...!"
Ragged breaths, her two childhood friends over a decade old howling like beasts as they fucked—vivid as if she were watching. No video, but the sounds painted it crystal clear: positions, thrusts, everything.
Why had Mari called? Why broadcast her fucking Seo-yoon to her? Unfathomable. But more baffling still...
"Why, why...!"
Her own cock, swollen to bursting, leaking precum nonstop. From the first moan of Seo-yoon's, it had stayed erect, refusing to subside. Hearing her get railed rough only made it drool clear fluid in jealousy.
"No, no...! I can hold it... I can hold it...!"
She knew how guys jerked off, even if she was a girl. Grip the raging thing and stroke. Simple. But one hand clenched the phone, the other trembled uselessly.
She knew why Mari called—and why she hadn't hung up, forcing her to hear the sex.
"Kim Mari..."
It was her way of cheering her on. You grew one suddenly too, but Seo-yoon accepted you. So don't worry—just take care of your fire first. They bickered, but never truly hated each other.
"Haa, haa..."
But Mari had overlooked one thing: the feelings of Seo-yoon's other friends, unconsciously smitten all this time.
They ran deeper, stickier, denser than imagined.
Finally, the scorching heat in her loins and the brain-melting taboo shame won out. Yu-hyun reached down.
"Hngk...♡ This... is a cock...♡"

She gripped it tentatively and began stroking. Her other hand still held the phone, raw sounds of Mari and Seo-yoon flooding in.