Service Training (3)
Eunbi’s legs worked tirelessly between Seongjun’s thighs, sliding in and out without rest. She pulled them back, and his throbbing cock sprang free, caught unflatteringly between her toes.
Seongjun’s whole body jerked. His fingers twisted on their own.
“Ugh…! Haa…! Haa…!”
“It’s turned so fucking red… Oppa’s cockhead…”
Eunbi deliberately angled the swollen tip straight toward Dain. The younger girl’s throat bobbed with a hard swallow. It was far too close. Pre-cum dribbled freely from the gaping slit. He looked ready to blow any second.
“Oppa looks like he’s suffering, Unnie…”
“Hehe… Does he? Guess I teased him too hard…”
Eunbi dropped to her knees. She reached out, seized the jutting shaft in a firm grip, and hauled it free. Her tongue flicked out. She gave the bloated cockhead a sharp upward slap with the tip.
“Guh!! Uuugh…! Aaaah…!”
“Haa…! Haa…! Fucking delicious… my real Oppa’s cock…”
“Eunbi…! Ugh…! My cock feels weird…!”
“Just do it like always, Oppa… It’s fine…”
Dain’s eyes went round. She had just called him her real Oppa. Dain’s heart hammered. The hands covering her cleavage trembled hard.
“Hehe… Surprised? Oppa and I… we play like this…”
“Unnie…”
“It’s a little embarrassing, but… this is just my taste… my fantasy… Oppa’s the same way…”
“……”
“When I talk dirty like this… the customers go crazy for it… and they shoot their loads so much faster… haa…”
She parted her glossy lips wide and swallowed Seongjun’s cock to the root in one smooth motion. Her head drove forward. The back of her throat bulged, the shape of his cockhead standing out clear. She had taken him deep enough to gag.
She pulled back and spat him out.
“Haa…! Haa…! Oppa, lie back and get comfortable… We have to start…”
“Haa…! Haa…! Fuck, that feels incredible… huh?”
“Hehe… From here on it only gets better… You’re hard too, right, Oppa? Roa’s watching…”
Seongjun panted hard and buried his face completely into the bed. He settled his hips down. Eunbi squeezed another long line of gel across his back and rubbed it in with long strokes until his whole body gleamed.
She spread her legs wide, planted her ass on his thighs, and sank down fully. She slid forward until her tits crushed flat against his back, skin sealed tight. Hot breath ghosted over his ear.
“Oppa… feels good having your little sister grind on you, doesn’t it…?”
“Yeah… I’m going crazy… like my whole body’s floating…”
“Hehe… Mmmh…! Oppa, my pussy just touched… your ass…”
“Yeah, I can feel your pussy hair exactly like that…”
Dain’s eyes locked onto Eunbi’s parted pussy lips, plastered flush against Seongjun’s ass. Clear fluid leaked in thick strands, sliding down the cleft of his cheeks and dripping onto the bed. Her mind went blank white.
She had never once imagined Eunbi Unnie had tastes like this. Incest. Until yesterday the word had never even crossed her mind—not until she came face to face with her real Oppa. She had been flustered. He had told her to stroke his cock. She had gotten swept up in the moment. There had been something close to a threat. And then she had seen how massive her real Oppa’s cock was and felt something strange. It had been hard. Hot. The second she wrapped her hand around it, something unknown had pushed between her legs. A sharp tingle. That same sharp tingle was back now. Eunbi Unnie had lit the fire. She hadn’t slept a wink all night. Every time she closed her eyes she saw Oppa’s naked body, cock swinging toward his little sister.
“Oppa… lift your hips a little…”
“L-like this…?”
Seongjun raised his hips slightly. Eunbi, still plastered to his back, shoved both hands underneath. A scream-laced moan tore out of him. She had seized his cock in both hands and begun stroking it slowly up and down.
“Aaaah…! Fuck, Eunbi…”
“Oh my, Oppa… already forgot your little sister’s the one stroking your cock?”
“Uuugh…! Sorry, it just feels too good…”
“Hehe… You said your little sister’s name is Dain, right?”
“Haa…! Haa…! Yeah…”
Both naked bodies turned their gazes at the same time. Straight at his real little sister, Dain. She flinched hard. Her entire face had flushed scarlet.
“Do Oppa and I look weird…? Your eyes just went round…”
“N-no… Don’t mind me… Unnie…”
“Hehe… You said you have an Oppa too, right? You mentioned it before…”
“Mm…”
“What’s your Oppa like…? Ever notice anything strange about him…?”
“Th-there’s nothing like that… Unnie… You’re being weird…”
“Hehe… Just kidding. Oppa and I playing like this… you can’t tell anyone, okay? Not the manager… not even the boss…”
“Okay…”
“Haa… Oppa’s cock is so fucking huge… You’ve touched it too, right? How was it…?”
“I don’t know… Don’t ask me that…”
Eunbi sped up the strokes. Pleasure-soaked cries burst from Seongjun’s mouth. His body twitched. He openly raked his eyes over his little sister’s figure. Dain, clearly mortified, dropped her head fast—then slowly lifted it again. She stared fixedly at her real Oppa’s cock thrashing in Eunbi’s grip. She was getting worked up.
“Oppa, your cock’s gotten insanely bigger than when it’s just the two of us… Is it because of Roa?”
“Yeah, I told you… she looks like my little sister… haa… haa…”
“Hehe… I’m getting jealous. Can’t have that… I’m gonna eat Oppa’s ass. Stick it out for me.”
Seongjun slowly pushed himself up. Eunbi, still pumping his cock, backed off and licked her lips. Her eyes locked between his cheeks. The bastard stuck his ass out proudly. He lifted it high, spreading both legs wide into a perfect doggy position. His real little sister’s eyes were filled with the raw sight of her Oppa’s twitching cock and asshole.
“Haa…”
A soft moan slipped from Dain’s lips. Seongjun’s cock jumped—he had caught his sister’s sound. So had Eunbi. She reached out, wrapped her hand around his gel-slicked shaft, and kneaded it gently. Her tongue stretched out. She spread his ass cheeks with her fingers and drove straight in.
Thwack!!!!!
Seongjun’s head snapped back. He screamed. Her tongue tip burrowed deep, twisting clockwise in tight circles. She fondled his cock and balls while she wrecked his hole.
“Ugh-haah…! Too deep… Ahaah…!”
“Haa…! Haa…! Oppa’s ass tastes so fucking good… slurp…”
“Ugh…! Dain-ah… Oppa’s gonna cum… if you go that deep… uugh!!”
Seongjun’s hips jerked upward then collapsed weakly. He repeated the motion. Without thinking he spread his legs as wide as they would go, deliberately framing the angle for his little sister so she could see every detail of Eunbi greedily sucking his ass. The urge to cum surged like a wave. He crushed it down with everything he had. Both balls drew up tight. Eunbi, the crazy bitch, kept ravaging his hole with her tongue like a woman possessed. She pulled her head back. A thick strand of spit stretched between her lips and his asshole. She curled her tongue and snapped it.
“Hehe… See that, Roa…? Oppa almost came just now…”
“Haa… haa…”
“You ever do this for customers…?”
“No… I get too grossed out to go that far, Unnie…”
“This Oppa’s ass is so fucking clean and smells so sweet… makes me want to bury my face in it…”
“Really…?”
“Yeah. After Unnie finishes, you should try it too… this Oppa’s ass is fucking delicious…”
Eunbi gave his back a couple of taps. Seongjun understood instantly and flipped over, sprawling on his back. His cock stood rigid toward the ceiling, veins so swollen they looked ready to burst. Fully exposed in his real little sister’s line of sight.
“Gonna put more gel on, Oppa…? It’ll feel a little cold…”
“Haa… haa… Yeah, put on a lot… it feels fucking amazing…”
She squeezed a long ribbon of gel across his chest and rubbed it in with both hands, paying special attention to every crease of his groin until his entire body shone. Seongjun laced his hands behind his head, eyes still locked on his little sister. He flexed his cock so it nodded at her.
“Oppa, you can’t cum until I say so, okay? Even if it’s hard, hold it.”
“Yeah… I’ll try as long as I can.”
“Hehe… Oppa’s nipples… they’re standing straight up.”
“Uuugh!!”
Eunbi suddenly drove her head down and flicked one stiff nipple with her tongue. She slowly settled her body on top of his stomach and pushed her ass back. Seongjun’s veined cock slid right into the cleft of her cheeks and got squeezed tight. A moan slipped from Eunbi’s lips.
“Ahaang…! Oppa’s cock… mmmh…!”
“Haa…! Haa…! Dain-ah… her ass feels so fucking good… like my cock’s melting into it!!”
“Yeah… it’s still getting bigger… can you feel it? My ass feels like it’s on fire… mmm…!”
“Yeah, it’s trying to reach my little sister’s pussy… ughh…!”
“It feels so good, Oppaaa…! Mmmh…!”
Eunbi worked her tongue like crazy, flicking and teasing without pause. Heat rose off both naked bodies, stoking each other hotter. Seongjun’s tongue lolled out. He lightly gripped the back of Eunbi’s head and pulled her in. Tongues tangled. Throats bobbed. They shared a thick, wet deep kiss. Seongjun dipped his hips then thrust up hard. His cock punched up through the cleft of her ass and bounced free, swinging wildly side to side like a spring. His little sister watched every single motion without missing a beat. He tipped his head back. A strand of spit stretched between them. Their eyes met. Hot breath traded places.
“Gonna suck your cock, Oppa…”
“Yeah, I’ve been waiting… Eat it nice and good.”
Eunbi’s head drifted lower. She licked his nipples gently, kissed along his side, passed his navel. Soft flesh pressed against his veined shaft—her tits. The urge to cum surged again. He crushed it down. She reached his groin and rubbed her face into the coarse hair like a madwoman. He spread both legs wide into a frog position. Eunbi’s lips curled up. She gripped the shaft, kissed along the bulging veins, stood it upright, then stretched her mouth wide enough to split and swallowed him to the root in one go.
“Mmmph…!”
Wet sucking sounds filled the room. Eunbi’s head bobbed frantically up and down. Seongjun’s throbbing cock disappeared and reappeared as she greedily sucked and licked.
“Oppa, your cock’s so big it won’t all fit in my mouth…”
“Yeah, felt like it was gonna punch through my throat… take it slow.”
“Hehe… I’m good at blowjobs, right?”
“Yeah, maybe because it’s my little sister sucking me… felt like I was burying it in pussy.”
“Oppa… my pussy’s itching…”
“Want me to lick it?”
“Yeah, but I don’t want to let go of Oppa’s cock… what do I do?”
“Obvious, right? Just plant your ass on my face.”
“Hehe… your little sister’s ass?”
“Yeah. Oppa licks little sister’s pussy… little sister sucks Oppa’s cock… that works, doesn’t it?”
“Hehe… Oppa, you’re a pervert.”
“You too.”
Eunbi sat up and fixed her tied hair. She shot Dain a sidelong glance and grinned. The hands covering Dain’s cleavage shifted slightly, fidgeting—she was stimulating her own tits while watching Oppa’s cock get sucked.
Eunbi stood, spun around, and planted both feet beside Seongjun’s waist. She began lowering her ass. Her parted pussy and asshole filled Seongjun’s vision completely.
“Ahaang…!”
“Uuugh…!”
Seongjun’s face buried itself in Eunbi’s ass. His veined cock drove into her mouth. Flesh slapped against flesh. He grabbed each cheek and spread them wide. Thick fluid dripped steadily from between Eunbi’s twitching pussy lips. He stuck his tongue out and shoved it deep inside.