With our parents away in Colorado, I expected a chill weekend with my stepsister Mia—just hanging out, maybe some movies. But she brushed me off, acting cold and distant. To get a little revenge, I blasted hardcore stepsister porn on the living room TV while she lounged on the couch. I thought it would embarrass her. Instead, it ignited something primal. What started as a prank spiraled into forbidden touches, lingering glances, and finally, raw, desperate need. By the end of the week, after a freezing day on the slopes, there was no denying the heat building between us.
Our parents were off in Colorado for the week, leaving the house to Mia and me. I figured it'd be easy—movies, snacks, maybe some video games. We'd always gotten along fine since our parents married three years ago. Mia was nineteen, a year younger than me, with that effortless beauty: long wavy chestnut hair, soft hazel eyes, full lips that curved into a teasing smile, and a body that curved in all the right places—perky C-cup tits, a narrow waist, and an ass that filled out her leggings perfectly. But this trip? She was being a total ice queen. Every time I suggested hanging out, she'd mutter something about being busy and disappear to her room.
Fine. If she wanted to be a bitch, I'd give her some karma.
She was sprawled on the living room couch that afternoon, scrolling on her phone in those tiny pink cotton panties and an oversized t-shirt that barely hid the swell of her breasts. Her legs were stretched out, smooth and toned, toes painted a soft pink. The room smelled faintly of her vanilla body lotion, warm and sweet in the air.
I grabbed the remote from the coffee table, connected my phone, and queued up a Sis Loves Me video—full volume. The screen lit up with a girl on her knees, slurping noisily on a thick cock. "Glug glug glug"—wet, obscene sounds poured from the speakers, the guy's groans echoing as he face-fucked her. The actress's lips stretched wide, saliva dripping down her chin, strings of it connecting to the throbbing shaft every time she pulled back.
I smirked from the doorway, waiting for her to freak out.
But Mia didn't. She froze for a second, her eyes flicking to the TV, then... she bit her lower lip. Her cheeks flushed a deep pink, but not from embarrassment. Her free hand drifted down, slipping under the waistband of those cute pink panties. I could see the fabric tent slightly as her fingers moved, slow circles at first, pressing against her clit through the thin cotton.
The air thickened with the porn's soundtrack—wet smacks, breathy moans—but now mixed with the soft, real hitch in Mia's breathing. She shifted her hips, spreading her legs wider on the couch. One foot planted on the floor, the other draped over the cushion. She tugged the crotch of her panties aside, revealing her perfect pink pussy—smooth-shaven, already glistening with arousal. Her fingers dipped in, two at once, sliding through slick folds with a faint, wet schlick sound that made my cock twitch in my sweats.
"Fuck," she whispered, barely audible over the TV, her eyes locked on the screen as the girl deepthroated the guy. Mia's fingers pumped faster, curling inside herself, her thumb rubbing tight circles on her swollen clit. Her juices coated her fingers, shiny and visible even from where I stood. The scent hit me then—musky, sweet, her arousal filling the room like a drug.
I couldn't move. My dick was rock-hard, straining painfully. This was my stepsister, but watching her finger-fuck herself to porn I'd put on as a joke... it was the hottest thing I'd ever seen. She arched her back, her t-shirt riding up to expose the underside of her tits, nipples hard and poking through the fabric. A soft whimper escaped her lips as she came, her thighs trembling, pussy clenching around her fingers as clear nectar leaked onto the couch cushion.
I backed away quietly before she noticed, my mind reeling. That night, I jerked off three times thinking about it—her slick fingers, the way her pussy lips parted, the little gasps she made.
The next day, I couldn't take it. I found her in the kitchen, wearing shorts and a tank top, her hair in a messy bun. "Hey... about yesterday. The TV thing. Sorry. That was shitty."
She turned, leaning against the counter, a sly smile playing on her lips. Her eyes dropped to my crotch for a split second, then back up. "Apology accepted... but only if you show me you're really sorry."
"What do you mean?"
She stepped closer, her vanilla scent wrapping around me. "I want to watch you. Jerk off for me. Like I did for you."
My heart slammed in my chest. "You... saw me?"
"I felt you watching." Her hand brushed my arm, sending electricity through me. "Come on, Alex. Fair's fair."
We ended up in her room, the air warm and dimly lit by fairy lights. She sat on the edge of her bed, legs crossed, watching as I dropped my pants. My cock sprang free, already leaking pre-cum. She licked her lips, eyes hungry.
"Slow," she murmured. "Stroke it slow."
I wrapped my hand around my shaft, the skin hot and velvety under my palm, sliding up and down in long, teasing pulls. The foreskin glided over the swollen head, smearing sticky pre-cum down the length. Mia's breathing quickened, her hand slipping into her shorts again.
"Faster," she whispered, standing and kneeling in front of me. Her face inches from my dick, warm breath ghosting over the tip. "God, you're so thick..."
I couldn't stop. But then she leaned in, her soft tongue flicking out to taste the bead of pre-cum. Salty-sweet on her lips. "Mia..."
"Let me," she breathed, and wrapped her mouth around the head. Holy fuck. Her lips were plush and warm, stretching around my girth as she sucked gently, tongue swirling under the ridge, tracing every vein. She took me deeper, inch by inch, her throat relaxing until her nose pressed against my pubes. Wet heat enveloped me completely, her saliva dripping down my balls.
She bobbed slowly at first, building the rhythm—slurping sounds filling the room, her hand twisting at the base while the other cupped my heavy sack, rolling them gently. The suction was perfect, pulling groans from deep in my chest. Her eyes locked on mine, watery and eager, as she hollowed her cheeks.
"I'm gonna—" I warned, but she just hummed, vibrations shooting through me. I exploded, thick ropes of cum flooding her mouth. She swallowed every drop, tongue milking me dry, lips sealed tight until I was spent and shaking.
She pulled back with a pop, a string of cum connecting her lip to my tip before she licked it away. "Good apology," she teased, voice husky.
The rest of the week built like that—stolen glances, brushes of hands, tension simmering.
Then came the skiing day. We hit the slopes hard, laughing for the first time all week. But a sudden storm soaked us through. By the time we got home, we were freezing, teeth chattering, clothes clinging wet and cold.
"We need to warm up," Mia said, shivering in the living room. "Body heat. Strip."
No hesitation. We peeled off layers—socks, jackets, shirts. Her bra came next, revealing those perfect tits: full and firm, pale pink nipples stiff from the cold. Then pants, underwear. She stood naked, goosebumps covering her skin, pussy lips peeking between her thighs.
We collapsed on the couch under a thick blanket, skin to skin. Her body was ice at first, but pressed against me—soft tits squishing against my chest, her smooth legs tangling with mine—the warmth built fast. My cock hardened instantly, nestling against her belly, hot and throbbing.
She felt it, grinding subtly. "Alex..."
Her hand wrapped around me, stroking slow, her palm slick with our shared heat. I groaned, capturing her mouth in a deep kiss—tongues sliding, tasting mint from gum earlier mixed with lingering sweetness.
I rolled her beneath me, spreading her legs. Her pussy was drenched already, folds puffy and pink, clit peeking out. I rubbed the head of my cock through her slit, coating myself in her juices—warm, slippery nectar that smelled intoxicatingly of her arousal.
"Please," she whimpered, hips bucking.
I pushed in slow, inch by thick inch. She was impossibly tight, velvet walls gripping me like a vice, fluttering as she stretched around me. The heat was overwhelming, wet suction pulling me deeper until I bottomed out, balls pressed against her ass.
We moved together—slow, deep thrusts at first, savoring every sensation. Her nails dug into my back, legs wrapped around my waist. The blanket trapped our heat, sweat beading on our skin. Wet sounds echoed—slap of flesh, squelch of her pussy taking me over and over.
"Faster... harder," she gasped, tits bouncing with each pound.
I fucked her relentlessly, angling to hit that spot inside. Her walls clenched, milking me as she came first—crying out, pussy gushing around my cock, soaking us both.
I followed, burying deep and unloading—pulse after pulse of hot cum filling her, overflowing and dripping down her ass.
We stayed locked together, panting, bodies slick. "No more being a bitch," she murmured against my neck.
"Deal," I whispered, kissing her softly. The house was ours... and so was this.
**End of Story**