Continuing the story. I fuck my sister any chance I get, I can’t help it. So when she sat in my lap in the back seat of a full car…
I stared down at my little sister’s folded body on the bathroom floor, her petite frame trembling under me, legs pinned over her head in those white sneakers. My cock was still buried deep in her tight pussy, twitching as the last spurts of cum leaked out around the base, mixing with her juices and dripping onto the tiles. Fuck, she looked wrecked—small tits heaving, blonde hair splayed, her innocent face flushed with tears and that unwanted glow of pleasure. Guilt twisted in my gut for a second, knowing she was only 15, my own blood, but it faded fast. This pussy? The best I’d ever fucked. So snug, so wet, gripping me like it was made for my dick. I couldn’t help it—taboo or not, I was hooked.
I pulled out slow, watching her lips cling to my shaft, a thick string of cum connecting us before it snapped and oozed from her gaping hole. She whimpered, curling up, but I just zipped up, unlocked the door, and slipped out like nothing happened. Amber was back on the couch, smiling up at me all bubbly and clueless. ‘Took you long enough,’ she teased, patting the spot next to her.
I sat, pulling her into my lap, but my mind was on sis—her cries muffled under my hand, her underage cunt milking me dry. Amber giggled as I kissed her neck, but when I flipped her over the armrest later that night in my room, I fucked her harder than ever. Pounding into her from behind, gripping her hips, but every thrust, I pictured my sister’s petite body jolting under me. ‘Fuck, yes,’ I groaned, slamming deep, Amber moaning loud, but it was sis’s tight walls I felt squeezing me. I came buckets, flooding Amber’s pussy, but guilt? Nah, just more hunger for the real thing.
Amber stayed over, curling up asleep beside me, but I couldn’t rest. Slipping out of bed around 2 AM, I padded down the hall naked, cock already half-hard. Pushed open sis’s door quiet, the moonlight hitting her bed where she slept in just a tank top and panties, looking so fucking vulnerable. I climbed on, yanking her panties aside, and rubbed my thick head against her slit. She stirred, eyes fluttering open. ‘Sam? No, please—not again,’ she begged, voice sleepy and scared, pushing at my chest with those small hands.
But I was gone, obsessed. ‘Shh, baby sis, you know you want it,’ I growled, shoving in deep with one thrust. Her pussy was still slick from earlier, welcoming my cock despite her whines. She twisted, protesting, ‘Stop, bro—it’s wrong, I can’t take it anymore!’ Tears welled up, but I clamped my hand over her mouth, pinning her wrists above her head with the other. ‘Too bad, your little cunt’s mine now.’ I fucked her relentless, bed creaking soft, her muffled sobs turning to gasps as I railed her missionary style, balls slapping her ass. She bucked, fighting, but her walls clenched hard, betraying her—juices soaking my shaft. I hammered deeper, grunting, ‘Feel that? Brother’s dick owning you.’ She came with a stifled scream into my palm, pussy spasming, and I unloaded, pumping hot cum into her again, marking her as mine.
That last fuck left me buzzing for days, Jessie’s tight underage pussy clenching around my cock as I flooded her with cum, her sobs mixing with those unwilling gasps. I couldn’t stop—never had a taste for incest shit before, not with her being so young and my little sis, but now? Obsessed. I’d corner her anywhere, anytime. Slipped into the pantry that morning while Mom chopped veggies next door, the door cracked just enough to hear her humming. Pushed Jessie against the shelves, yanked her shorts down, and rammed my thick dick into her from behind. She bit her lip to stifle whimpers, cans rattling as I pounded her quick and dirty, balls slapping her ass till I grunted low and pumped her full, pulling out to watch my load drip down her thighs before zipping up and grabbing cereal like nothing happened.
Even riskier: game night with the guys in the living room, TV blaring cheers. I dragged her into the hallway, just a thin wall away, their laughter echoing. Bent her over the laundry basket, hiked her skirt, and shoved in raw. ‘Sam, they’re right there—stop,’ she hissed, but I clamped a hand over her mouth, fucking her sloppy and fast, her pussy soaking my shaft despite the fear in her eyes. Felt her walls flutter as she came quiet, and I unloaded deep, groaning into her hair before shoving her back to ‘help with snacks.’ The thrill of almost getting caught? Made my cock throb harder every time.
Now, family road trip to Grandma’s. Dad’s old pickup loaded with crap—suitcases, coolers, and that massive ancient TV from the garage, heavy as fuck. I grunted, hauling it into the bed with him, muscles straining under my shirt. Jessie hovered nearby in her yellow summer dress, the thin fabric hugging her petite frame, those slim legs peeking out, white sneakers scuffed from school. Looked so innocent, but I knew better—knew how her little cunt gripped me like a vice.
‘Jessie, backseat’s packed—sit on your brother’s lap,’ Dad said, climbing into the driver’s seat, Mom shotgun. I shrugged, playing it cool, but my dick twitched in my jeans at the thought. ‘Whatever,’ I muttered, sliding in first, the TV and luggage piled high behind the front seats, blocking any view from Mom and Dad. Perfect cover.
She climbed on hesitant, her small ass settling on my thighs, dress riding up a bit. The engine rumbled to life, and we bumped out of the driveway, the road uneven as hell—potholes jolting us every few minutes. I shifted under her, letting my growing hard-on press against her through the fabric. ‘Sam, don’t,’ she whispered, twisting to glare, but her voice shook, scared eyes darting to the front where Dad fiddled with the radio.
First bump hit, and I used it—grabbed her hips, grinding her down slow onto my bulge. The TV swayed, hiding us in that cramped space, the scent of her shampoo mixing with the truck’s dusty air. My cock throbbed, straining against my zipper, poking at her panties under the dress. ‘Shh, just relax, sis,’ I breathed, lips brushing her ear. She squirmed, trying to lift off, but I held firm, one hand sliding up her thigh, fingers teasing the edge of her underwear.
Road got rougher, tires crunching gravel. I unzipped quiet, fishing out my thick shaft, veiny and leaking pre-cum already. Pressed the fat head right against her slit through the thin cotton, rubbing slow circles. She gasped soft, clamping her legs, ‘No—Dad’ll hear!’ But the fear? It just made me harder, the taboo rush of fucking my own sister with parents feet away igniting that fire in my gut.
I tugged her panties aside, the bumpy ride doing half the work—nudged my cockhead into her tight entrance. She was already damp, that conflicted arousal betraying her again. ‘Please, Sam—not here,’ she begged under her breath, hands gripping the seat, but I didn’t stop. Pushed up slow, inch by inch, her pussy stretching around my girth, swallowing me balls-deep in one careful thrust as the truck hit a dip. Fuck, so snug, her walls hugging every ridge, warm and wet like she was made for this.
Dad glanced back in the mirror. ‘Hey, Sam—how’s the truck running? Oil change due?’
I cleared my throat, keeping my voice steady, one hand on her hip to hold her still while I flexed inside her. ‘Yeah, Dad—changed it last week. Smooth as hell.’ She bit her lip hard, tiny body trembling on my lap, my cock buried to the hilt in her underage cunt. Mom laughed at something on the radio, oblivious.
I started moving her then—subtle rolls of her hips, the luggage masking the motion. Pulled out halfway, then sank back in deep, the slick sounds drowned by the engine roar. Her breath hitched, face flushing red, but she didn’t dare make noise, scared shitless. I kissed her neck soft, tongue flicking her skin, tasting salt from her nervous sweat. ‘Good girl—take brother’s dick quiet,’ I murmured, nipping her earlobe. She resisted, clenching her fists, whispering, ‘Stop, it’s too risky—we’ll get caught!’ But that plea? Only riled me more, the non-con edge making my balls ache.
Pace picked up as we hit the highway, my thrusts shallow but firm, grinding her clit against my base with each bump. Dad yapped on about Grandma’s pie, asking my opinion on the route. ‘Straight shot, Dad—15 minutes,’ I replied casual, voice even, while I fucked my little sis slow and deep, her juices coating my shaft, dripping down my balls. She whimpered faint, body betraying her—pussy fluttering, sucking me in like it craved the fill.
That went on for a while, until I realised we were getting close to Grandma’s house. Couldn’t hold back anymore. Hand slid up, fingers wrapping her slender throat light, choking just enough to make her gasp sharp. ‘Cum for me, Jessie—milk your brother’s cock,’ I growled low against her neck, the other hand gripping her ass, lifting her up and slamming her down hard. The truck jolted with us, radio blasting some old tune to cover my groan building. She resisted, shaking her head, tears pricking her eyes, but her walls spasmed wild, that scared arousal peaking.
We turned onto Grandma’s street, houses blurring by. I choked tighter, lifting her by the neck and ass, pounding urgent now—balls slapping her skin wet and loud under the dress. ‘Fuck—take it all,’ I grunted, voice muffled in her hair, the risk exploding in my veins. Her pussy clenched vise-like, and I lost it—groaned deep, flooding her depths with hot, thick ropes of cum, pumping rope after rope into my sister’s tight hole as the truck slowed at the curb. She shuddered silent, cumming too, her body quivering on my lap, my dick still twitching inside her, leaking the last drops while Dad killed the engine, clueless just feet away.
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