Chapter 73. The Room We Can't Leave
My heart was pounding. Not from excitement or embarrassment, but because it sensed danger. ...If we get caught, we're totally screwed. What the hell do we do?
"...Oppa."
"...Yeah."
"Keep... going...?"
"...Just wait a sec."
A conversation barely above a whisper, like we were holding our breaths. Should we wait until she falls asleep again? Or should I slip out alone and act like nothing's happening? Could I lure Mom outside for a bit? ...No matter how good the plan, I wouldn't be able to keep a straight face. When push comes to shove, my instinct is always to dodge.
I couldn't leave. And my sister sure as hell couldn't in her current state.
"...Turn off the light first. Hide under the bed."
"...Okay."
I killed the lights in case of emergency. The door was locked, but better safe than sorry. If she peeked in, I'd block the view with my body and the blanket. The rustling of fabric sounded deafening. In exchange, the TV noise had vanished. Had she gone back to her room? No footsteps, though. Probably using earphones, like she often did—especially at this hour.
"...Let's just stay like this for a bit."
"...Okay."
"I'll... check later."
"...Yeah."
Whispers so soft they were almost breaths. The faint awareness that had dimmed sharpened again. I remembered what we were doing was wrong.
"... ."
"... ."
But you were still here. Lights off, moonlight blocked by the blinds. We were touching. I knew it was trashy. But in the dead of night, holding my little sister in secret from Mom—it made my heart race not just from danger. I was so paranoid about the noise carrying that I fidgeted, yet I wanted to touch you just a little more without getting caught.
"...K...iss?"
"...Yeah."
Maybe she read my mind, or maybe she just asked. A light kiss to muffle each other's sounds. Hiding in the room, under the covers. Without sight, we sensed each other slowly by touch, committing one more sinful act as siblings just beyond the thin wall.
"Ha... ah... ."
"... ."
No matter how cold or dangerous the situation, once the fire's lit, it doesn't die easily. Keep feeding it logs, and the flames won't go out. Slowly, secretly, masking the rustle of clothes, I undid the buttons of my dress shirt she'd stolen. I placed a hand on her chest to calm my pounding heart.
Lies. No way that was the reason.
My hand slid lower. Slowly, so we wouldn't get caught. Fingers licking over her breasts, tasting them.
"O...ppa, gently... ."
"... ."
It wasn't just lust—the thrill of walking a tightrope made my whole body tingle. I clamped her mouth shut again and lightly pinched her nipple. A sharp inhale escaped her.
"Gently! Oppa... ."
"...Cover it."
"Wha... t...?"
"...Condom."
"...Are you... insane...?"
"...Yeah."
I probably was insane. I flicked on the nightlight. Pulled back the blanket and yanked down my underwear. My dick stood rock-hard even in this mess. Was my sister losing it too? She obediently grabbed the condom we'd opened earlier. Just like I'd shown her, she rolled it down from the tip.
The second it was fully sheathed, she dove back into my arms. Her hand still gripping my dick.
"...Seriously, no sounds at all... ."
"I won't... so... kiss."
"...Kiss?"
"Do it while kissing me. ...Quietly."
I pulled the blanket back over us. Killed the light again. Total darkness now, shapes indistinguishable after that brief glimpse. Sight numbed, the other senses sharpened. Even without words, your swallow told me you were excited too. No reply needed—your fingers fidgeting at my tip confirmed your reason had shut down. Just like mine.
We'd both gone mad for each other. No brakes left.
We kissed to swallow our voices. Deep, aching kisses. Tongues flicking lewdly now. My hands found her breasts, caressing gently, carefully. She teased my cock the same way. The pace quickened. Squelch, squelch. The wet sounds echoed terrifyingly loud. Slower and quieter than usual, maybe, but that's how it rang in our ears.
"...You can... cum... Oppa... ."
Her tongue lapped my sweetly as her hand stroked, filling the rubber with white. One twitch, and it was over. Way less than usual. Nerves? Weak stimulation? It wasn't enough. No buildup, no release.
"...Not enough?"
"...A little."
We could read each other now without words. She pulled away, glancing at the door. I did too. Pitch black. Nightlight on—door visible, definitely locked. Blanket off again. I bunched it by the headboard and leaned back. She positioned herself eagerly beneath me. Then peeled off the condom. My dick sprang up, smacking her face. She handed it to me. I gave it back.
"...Why?"
"...Wanna put this in your mouth?"
"...Pervert."
My shirt hung open, breasts fully exposed. Black skirt hiked up without me asking. Black stockings in view. She knelt before me, nipping the condom's tip, covering her eyes with her hand.
"...This satisfy you, Oppa...?"
"...Hell no."
I took the condom, tied it, tossed it on the floor. Grabbed her head and pulled it to my crotch.
"...Can I?"
"...It's that time of month, so... yeah."
Permission granted, I pressed my tip to her lips. Her mouth, soiled with my saliva moments ago, now took my cum too. The clumsy feel of her tongue welcoming my cock. Totally different from just licking. I pushed deeper. Tip fully inside. She fumbled, unsure. Teeth grazed, making me wince—she opened wider apologetically.
"Uh... suck... ."
"...No sucking. Lick it. Like last time."
Her tongue tip traced the slit. Found the hole, pressed hard. Sanded it with the flat of her tongue.
...My brain's melting.
"...Use your hands too. Both."
"Sh...aft...?"
"The shaft. And below."
I was sitting up now, clutching her head, glaring fiercely. Hands on my dick and balls. No sound since nothing sticky, but way better than before. She shook the shaft, fondled my balls. Endless pleasure raced up my spine to my scalp.
"G...good...?"
Fucking amazing. I love you... That one word made her grin. Hands sped up. Balls still tenderly stroked, but her tongue crushed my tip harder.
"...Love... you... honey... ."
Breaths more than words, slurred nonsense. That's why the guilt surged—this was so wrong. I gripped her hair hard enough to hurt. More than the first time. For the first time, filling your mouth. Behind the door, with Mom oblivious. Stuffed full with your big brother's cum.
"...Ha... ah... ."
"... ."
She clamped her mouth shut right after swallowing. I wanted to stroke her, kiss her—but she pointed at the door.
"...Should check?"
"... ."
"...I'll come back if Mom's asleep."
"... ."
I slipped out from the covers. Pulled up my underwear, grabbed a T-shirt and shorts from the closet. Took a deep breath and cracked the door carefully. Glanced at the sofa. Mom lay half-lidded, earphones in, beer can in hand.
"...Oh, son. Not sleeping?"
"Can't always sleep, right?"
"Bad for your skin. Go to bed... ."
"Mom's not sleeping—what're you doing?"
"Mom's finishing this and heading to bed too... ."
...We're good for now. No problem. I casually headed to the water cooler. Wiped cold sweat, gulped a cup.
"Can't sleep? Watching TV this late."
"Even Mom has nights she wants to stay up."
"...Something wrong?"
"Just... after quitting work, it's a mix of relief and emptiness. But I did a good job raising you kids... that thought hits too."
"... ."
"Sent my son to the army. Gonna send my daughter to college. Now what? Mom doesn't know."
"...Do what you want."
My heart ached. Like needles stabbing. Guilt filled my lungs, stinging.
"Will my son make Mom's wishes come true?"
"...What's your wish?"
"...You kids living happy. Graduate college well. Make good friends. If lucky, find partners. That's Mom's dream."
"... ."
"Aigoo, why that touched face?"
"...No."
"Mom's drunk, rambling—don't mind it."
...You're not drunk. Not at all.
"If Mom opens a cafe or restaurant later, visit once a week—that's all I want."
"...That's a lot."
"You gonna live without seeing Mom's face? Rude."
"...I'll go. When I can."
"Good. Come often. Ah, drama's over. Mom's sleeping now— you go too."
"...Yep."
We walked opposite ways. Water cup in hand, back to her, into my room. My sister waited, lips sealed tight. As I climbed in beside her, she opened wide with a beh.
Proof of our recent sin, right there.
"Cup. Spit here."
"Beh... ."
"...Why not just spit in tissue."
"...Wanted to show you. To Oppa."
"... ."
I blocked her mouth with my hand before she could kiss. Instead, I kissed everywhere lips could reach.
No turning back. Not anymore. What's broken can't be fixed.