Forced to be my sisters lover in a reverse world-Chapter 4: She’s pulling her vag out!

I sprawled across my bed, the dim glow of my phone lighting up my face as I scrolled through some filthy incest smut. The room was quiet except for the faint hum of the ceiling fan, my mind kept wandering back to what my little brother said earlier—that he'd be home late, working on some project with a classmate.
A dry laugh slipped out of me. "Should've asked if it was a girl," I muttered, shaking my head at myself.
As I kept reading, a chill crept up my spine. The words on the screen started to blur, and goosebumps prickled across my arms. Something was off—really fucking off. It wasn't just the story anymore; it felt like the air in the room had shifted, heavy and wrong.
Noah was in trouble.
I swiped out of the story and pulled up his contact, my thumb trembling as I hit call. The dial tone dragged on, loud and hollow in the silence. Ten seconds passed. No answer. The unease in my chest twisted tighter.
"Fuck, fuck, fuck!" I snapped, pacing across the room as my pulse hammered in my ears. I knew I shouldn't have let him go.
Then it hit me—the tracker. I'd slipped it into his backpack weeks ago, not as a joke, but because I couldn't stand not knowing where he was. He belongs to me... he just doesn't see it yet. It better still work.
I snatched my keys from the counter and stormed out, the door slamming behind me. The night air bit against my skin as I hurried to the car, heart hammering. I jammed the key into the ignition and peeled out of the driveway, tires screeching. My phone sat in the cupholder, the tracker pulsing on the map — a single glowing dot, still and waiting.
"I swear to fucking God — if whatever bitch he's with even thinks about touching my property, somebody's going to end up in a body bag."
With every turn, my stomach clenched harder — a cold, hungry knot that crawled up into my throat. My breath came in short, ragged pulls; the world narrowed to the strip of road ahead and the wheel under my hands. My knuckles had gone bone-white, the leather digging crescent-shaped into my palms, every blink felt like a countdown until I saw him.
-
"Please don't do this, Sara, please, please don't." I clutched at myself, knees pressing together as if that could stop whatever was coming. Hot tears streaked down my face and sweat slicked my hair to my forehead. My voice came out shredded, every word a sob.
"Shhhh, I just want to make you feel good, Noah. Just give in and let me fuck you..."
Sara pressed closer, her breath warm against my skin as she sniffed my chest over my shirt, inhaling deeply. I shivered under her attention, torn between anticipation and torment. I wished my sister were here... just to save me from this monster.
"Finally... eighteen years of being a virgin. I can finally fuck my first boy—taking his virginity is just a bonus."
Slowly, deliberately, she peeled her pants down, letting them slide over her hips and knees before pooling around her ankles. The black lace of her underwear clung to her skin, framing the curve of her hips and the softness of her thighs. Every subtle movement—every shift of her weight, every sway of her hips—felt like it was drawing me in, making it impossible to look away.
"I don't want this... I don't want this... I don't want this," I choked out, each repetition trembling on my lips. My voice shook, a desperate, pleading rhythm, as if saying it enough times might make her stop—or make her feel even a flicker of guilt. My heart pounded, my chest tight, and all I could do was wish, hope, pray that she'd let me go.
"Just be quiet, Noah," she murmured, her voice low and dangerous. "You deserve this... for teasing me all the time with that whore body of yours."
Her words landed with a sharp slap against my abdomen, making me gasp. Before I could recover, her hands were on me, gripping and exploring like a predator starved for contact. Every touch, every squeeze, burned through me—sharp, insistent, and impossibly demanding—pulling me further into her relentless heat
"Fuck... I need to see you completely,"
Before I could react, her hands were on my pants, yanking them down with a sharp tug. They slipped off so fast I barely had time to blink—and suddenly I was completely pantsless. The only thing left between us was the thin fabric of my underwear, clinging tightly, a small barrier that did little to hide the shape beneath.
She leaned down, burying her nose against my covered manhood, Inhaling the scent of my genitalia. I was completely fucked...
I buried my face in my arm, trying to escape it all. "God, just kill me already..." I muttered, my voice shaking.
"Shut the fuck up," she hissed, a cruel, satisfied smile curling across her lips. "The only thing I wanna hear from you are desperate sounds and filthy praise... every pathetic word you've got."
She leaned in, letting me feel the weight of her control pressing down.
She exhaled with a soft, satisfied sigh as she tugged off the final piece of fabric, sliding it down my legs and leaving my lower half entirely exposed.
"H-Holy shit... a males cock..." she stammered, her hand trembling as she reached down to wrap her fingers around my soft shaft, her touch hesitant but curious.
Before anything could happen, the door burst open with a loud bang, the hinges creaking as a rush of cool air flooded the room.
"Get the fuck away from my little brother!"
My sister, Elara, stood in the doorway, hair messy and slick with sweat. Sara froze, her eyes wide with shock and fear, caught in the act of trying to cross a line she shouldn't have.
Elara looked back at me, noticing my tear-filled eyes and wet cheeks.
I scrambled off the bed and rushed to her side, wrapping my arms around her and burying my face against her chest, wishing I could disappear.
"Don't worry, Noah, I'm here now..." she said, rubbing gentle circles on my back with one hand, while the other guided my head to rest against her soft breasts. The steady rhythm of her presence made me feel safe, finally letting some of the tension drain away.
Elara let go for a second and took a step forward, face hard. "I should kill you," she hissed at Sara.
I stood in front of Elara, planting my feet and holding my hands up. "Don't, sis—let's just leave. I don't want you killing anyone."
For a long beat she froze, chest heaving. Then her anger softened; she looked down at me with those deep brown eyes, and something in her expression changed.
"Fine. But I swear to God—if you ever get close to my Noah again, I will gut you and send whatever's left back to all of your family."
The way she said, "my Noah," made my stomach flutter like butterflies, a strange mix of warmth and comfort that eased some of the fear I'd been holding onto.
I grabbed and yanked my underwear and pants back up, zipping and buttoning as fast as I could, trying to stitch back the last scraps of my dignity.
We ditched the house, leaving a terrified Sara behind—someone I hoped I'd never have to see again.
I slid into Elara's car and let out a long, shaky breath. The fact that I'd almost been raped hit me all at once, and I couldn't hold it in. I started to cry—big, helpless sobs I hadn't felt in a long time.
Elara wrapped her arms around me, holding me close and rubbing my back, whispering comforting words into my ear. Just sitting there with her, feeling her steady presence, I finally felt all of the tension of today leave my chest.
"Take the next few weeks off, okay? I don't want you going near that school," Elara said firmly.
In my old world, that would've gotten me in trouble—but here, I was more of a priority. The school would understand why I needed to miss some time.
I nodded as the car started moving toward home. All I wanted was to curl up next to my sister, safe in her presence, and let her protect me from this strange and dangerous world.