Pet Sister (4)
The next morning, Jeong Seo-yoon woke up in Jeong Siwoo's room and immediately reached for the spot beside her. But all her fingers touched was a cold, cooled mattress.
Pouting her lips, she brushed back her tousled hair.
"I can't believe he didn't come back from Mom's room all night."
She'd thought he'd return eventually, so she'd hugged his blanket and pillow tight against her body and drifted off. But it looked like he'd ended up sleeping in Mom's bed the whole night.
A sticky mix of jealousy and disappointment welled up in her chest. Of course, it wasn't aimed at Siwoo. How dare a mere pet sister harbor such feelings toward her master? Even if he abandoned her and kicked her away, she was ready to wait for him forever at his feet.
The target of this vicious jealousy was just one person: her mother, Kim Chae-eun.
The more she thought about it, the more cowardly it felt. It had probably been like this ever since they moved. She'd suffered under the weight of being the eldest daughter, shouldering all that responsibility, while Mom had been monopolizing this happiness at home all alone.
The sight of her mother through the door crack yesterday had been so enviable. That beastly wailing and writhing under her son. But above all, that strange smile Mom had flashed when their eyes met through the gap—that unforgettable look. It was the clear grin of a victor. Eyes that seemed to mock her: 'You're still far from it.'
"Me too..."
Still naked on the bed, Seo-yoon twisted her body. Burying her face between her thighs brought yesterday's memories crashing in like waves. Siwoo grabbing Mom's hair and shaking her roughly, the wet slaps of flesh against flesh. Even those vulgar moans spilling from her lips.
She'd masturbated in front of Siwoo, but that had looked way more pleasurable than any solo session. Imagining herself receiving that treatment from him made her womb clench with pressure, her lower belly twitching.
"It must feel amazing, right? Mom gets that every night..."
Unable to hold back any longer, Seo-yoon lifted her head and slid off the bed. Stark naked, she crossed the hallway. From the kitchen came the sound of Mom humming as she prepared breakfast—clinking dishes, the savory aroma of soup.
Peeking around the wall, she saw Chae-eun's face glowing with an unnatural sheen. Her skin practically radiated vitality. Biting her lip, Seo-yoon thought, The fresh country air must be good for her skin... or wait, no—it's because she's fucking Siwoo every day!
Careful not to be spotted, she tiptoed into the master bedroom. The door swung open to a rush of thick masculine scent, traces of semen and love juices. Spotting Siwoo sleeping deeply naked on the bed, she lit up and approached.
Exhausted from dealing with Chae-eun all night, he was lost in oblivious slumber. The blanket had slipped to his waist, exposing his firm upper body. Seo-yoon swallowed hard at the sight.
Having already seen everything yesterday, embarrassment was a luxury she couldn't afford. She slithered under the covers, her bare skin pressing against her brother's, sending sparks of pleasure through her.
"Siwoo-ya..."
She whispered softly, but he didn't stir. Only his steady breathing filled the quiet room.
Pressing her face to his chest, she sniffed deeply. His scent mixed with Mom's, making it even more intoxicating and lewd. Nothing like hugging his clothes in her own room—this was pure satisfaction.
Deciding she wouldn't hold back anymore, she stuck out her tongue and delicately lapped at his collarbone. The thrill of secretly tasting her sleeping brother's body crushed her womb even harder.
"Siwoo-ya... sorry. But you're just too hot... ♥ Ngh... your body tastes so good... ♥"
Starting at his chest, she licked up to his collarbone, then obsessively to his nape. Her saliva glistened on his skin, tracing paths. Holding her breath to avoid waking him, she focused solely on her tongue's sensations. Lap, flick. Lick—lick—
Her lips, having teased his nape, brushed his ear. She gently suckled his earlobe before trailing back down. Her tongue glided long strokes over his chest muscles. Even as she licked him freely, she felt utterly owned by him with every inch of her body.
How much time passed? She didn't stop until his nape was slick and wet. His skin sparkled in the morning light under her saliva. Her tongue had traveled from his firm chest and smooth nape to his face.
She stared piercingly at his lips. Their breaths mingled hotly on each other's skin. Her heart pounded so hard she feared he'd hear it.
Swallowing, she whispered in the tiniest voice.
"Siwoo-ya, you awake? Are you really sleeping?"
Of course, she didn't actually want him to wake. Panting, she watched his reaction. He remained deep in sleep, unmoving.
She wiped the drool from her mouth with the back of her hand. Flashes from last night through the door crack raced through her mind. The climax had been the most stimulating, but what struck her heart hardest was their kiss. Mom and her brother's kiss. And her, hiding in the dark living room, nothing but envious.
Her lips trembled. If she were still the strict pillar of the family, she couldn't even imagine this. But now she was Siwoo's pet sister. Craving her brother's attention and love—surely this little coquetry was allowed? A dangerous thought filled her head.
It's just being cute... this much should be fine, right?
Whispering once more into his ear,
"Siwoo-ya... if you don't wake up, Noona's gonna gobble you up~?"
No response, of course. Unable to resist, she lowered her head and pressed her lips to his.
At first, it was the softest touch. The warm, plush sensation made her lower belly jolt and grow wet. Soon, she nibbled and sucked his lower lip. A lewd smack broke the silence.
Still, he slept. Buoyed by confidence or greed, she grew bolder. Her tongue slipped into the seam of his lips. His tightly shut mouth yielded to her persistent teasing, parting slowly.
Her tongue slid inside. "Mmph, mmf..." She traced his smooth teeth, rubbed every corner of his firm gums. Finding his tongue, she entwined hers with it. Tongues tangled. Twisting her head, she devoured his lips greedily.
One drawback: right before the kiss, his lips had been censored by the Eden chip. Whenever intense lust hit, that area blurred like mosaic noise.
Eyes closed, she thrust her tongue deeper, tickling his palate and curling around his tongue root—her brain melting each time. Pressing her hand to his chest, she glued her body closer. Smack—slurp—smooch—schlurp—mwah— Wet sounds echoed endlessly.
By now, even the thought of not waking him was forgotten in her immersion. Then—
Flash.
Siwoo's eyes snapped open. Seo-yoon gasped and jerked her head back. But a thick strand of saliva stretched between their unfinished tongues, forming a silver thread. Snap—it broke and splattered on his chest.
Heavy silence blanketed the room. Siwoo stared blankly at the ceiling for a moment, then slowly turned to meet the eyes of Seo-yoon gazing down at him. His lips glistened with her saliva.
"Noona, what the hell do you think you're doing?"
His low, husky voice hit her eardrums. Her mind flashed white. Her eyes darted wildly.
"Uh, u-uhh... I mean, Siwoo-ya..."
Her lips flapped, searching for excuses, but nothing could explain this. His expressionless face plunged her into terror. What if he got mad and kicked her out? Declared her unfit as a pet?
Abandoning excuses, she whimpered and buried her face in his chest.
"S-sorry! Siwoo-ya! But your lips looked too tasty!"
"Hmph..."
Siwoo lightly wiped his mouth with his hand, staring at her. He picked up his terminal from beside him and checked the app.
"Then you need to be punished, right?"
Seo-yoon tensed at "punished," and Siwoo pointed to the door.
"Go..."
*
Screeech—the master bedroom door opened, and Seo-yoon stepped out still naked. She approached Chae-eun in the kitchen.
Focused on cooking, Chae-eun didn't notice her daughter right behind her.
"M-Mom..."
"Oh, Seo-yoon-ah. What is it... oh my."
Turning at the quiet voice, Chae-eun's eyes widened in shock, one hand flying to her mouth.
Her naked daughter. But it wasn't just that. Hands clasped behind her head, legs bent in a crab walk, hips thrust forward obscenely. Lewd beyond vulgar. Armpits, breasts, pussy, asshole—all exposed without shame.
Seo-yoon shook her hips back and forth. Blushing in embarrassment, she let out a cutesy nasal whine.
"I'm about to get my pussy brutally fucked by Siwoo now... so I came for Mom to inspect if it's good enough... ♥"
Chae-eun looked flustered at first, but soon smiled with delight.
"Oh? So our girl needs Mom's inspection before Siwoo fucks her?"
Wiping her wet hands on her apron, she approached her daughter.
"Then Mom'll check it out for you?"
