Sister’s Wet Pussy: My Dirty Incest Fuck

WARNING: This story contains explicit incest themes and adult content. 18+ only. Fiction based on fantasy.

I remember the first time it hit me, that twisted pull deep in my gut, the kind that makes your skin tingle and your mind race with thoughts you know you shouldn’t have. It was a hot summer night, the air thick and heavy, sweat sticking to every inch of my body. I was home from college, crashing in my old room, when there she was—my sister Emily, just a year younger, sprawled on the living room couch in a thin tank top and tiny shorts that rode high up her smooth, tanned thighs. Her tits pressed hard against the fabric, nipples poking through from the blasting AC. I stood frozen in the doorway, beer in hand, my cock already stirring just from staring at her perfect body.

We’d always been close, Emily and me. Growing up in a shitty house with parents too busy drinking and fighting to care, we only had each other. Shared secrets, late-night talks, sneaking out to smoke weed behind the garage. But this was different. This was raw, forbidden incest—the word alone made my heart pound and my dick throb. I knew it was wrong, but the nastiness of wanting to bury my tongue in my own sister’s wet pussy while she moaned my name consumed me completely.

I sat down next to her, closer than a brother should, my thigh brushing hers. She looked up with those big blue eyes and smiled. “Can’t sleep, bro?” she teased. I shook my head, eyes dropping to her cleavage. We talked about nothing—college, friends—but all I could think about was how her full lips would feel wrapped around my cock, sucking me like the dirty little sister slut I dreamed she was.

That night in bed, I jerked off hard imagining pinning her down, spreading her legs, and slamming deep into her tight cunt while whispering, “You’re my sister, my filthy incest whore.” Cum shot hot across my chest as I panted, guilt and thrill mixing into something addictive.

The next day everything changed. Parents were gone for the weekend, house empty. Emily was bent over the fridge, ass cheeks peeking from her shorts. I couldn’t resist—I walked up behind her, pressing my hardening cock against her and reaching past for a soda. She froze, then pushed back, grinding slowly. “What the fuck, Jake?” she whispered, voice thick with lust.

I grabbed her hips, pulling her tight. “You feel what you do to me, sis?” She turned, face flushed, and I crushed my mouth against hers—rough, hungry, tongue forcing its way in. She kissed back hard, hands clawing my shirt. We stumbled to the couch, clothes ripping off. Her tank top gone, perfect tits bouncing free, pink nipples begging to be sucked. I latched on, biting just hard enough to make her gasp while my hand slid into her shorts, fingers finding her pussy already dripping wet.

“Fuck, Emily, you’re soaked for your brother,” I growled, shoving two fingers deep inside her. She arched, moaning loud. “Yes, Jake… touch your sister’s cunt. I’ve wanted this too, you sick bastard.”

I yanked off her shorts and panties, spreading her legs wide to stare at her shaved, glistening pussy. The sight of my own sister’s cunt open and ready for me was the dirtiest thing imaginable. I dove in, tongue lapping her clit, sucking her sweet juices. She tasted incredible—tangy, addictive. Her hips bucked against my face as I finger-fucked her hard. “Eat me, bro… make your sister cum!” She exploded, flooding my mouth as her body shook.

I stood, dropping my pants. My cock sprang free—thick, veined, dripping pre-cum. Emily licked her lips, reaching to stroke me. “God, you’re so big… I need you inside me.” I rubbed the head along her slit, teasing. “Tell me what you want, sis.” She whimpered, “Fuck me, Jake. Shove your incest cock in my wet pussy.”

I thrust in hard, burying myself balls-deep. We both groaned as her tight walls gripped me. I pounded her relentlessly, bodies slapping, sweat dripping. “You’re mine now—my dirty sister slut.” She wrapped her legs around me, meeting every thrust. “Harder, bro… fuck your sister like you hate me!”

We came together—my cum erupting deep inside her as she screamed my name, pussy pulsing and milking every drop. Collapsing on her, panting, the reality hit: we’d crossed the line into real incest. And it felt fucking incredible.

After that, we couldn’t stop. Every chance we got—bathroom while parents slept, car in dark alleys, backyard under the stars. I’d bend her over the kitchen table where we ate family dinner and slam into her from behind. “Imagine Mom walking in, seeing her son balls-deep in her daughter’s cunt,” I’d whisper. She’d moan louder, pushing back harder.

She loved sucking me off—dropping to her knees in my room, taking me down her throat, gagging as I face-fucked her and called her my “incest blowjob queen.” I’d explode down her throat and watch her swallow every drop like a good little sister.

We tied her to the bed once, wrists bound, legs spread. I teased her for hours—tongue on her clit, fingers in her holes—until she begged. “Please, bro… your sister needs that cock.” When I finally fucked her, it was brutal and perfect.

We tried anal too. Lubed her tight ass, worked fingers in first, then slowly pushed my cock inside. “Ready for incest in your backdoor, sis?” She screamed as I filled her, then begged for harder. I pounded her ass until I came deep inside, watching it leak out.

Close calls only made it hotter—Dad almost catching my hand down her pants in the garage. The adrenaline led to even filthier sex later.

Years later, we’re still doing it—sneaking around, addicted to the taboo. Our bond is deeper than blood because of the dirtiness. If you’ve ever felt that pull toward family flesh, don’t fight it. Embrace the incest. It’s the rawest, hottest fuck you’ll ever have.