Step-Sister's Secret Lessons and Baby

Life is a funny thing and I was nineteen and had a step sister and she was twenty two and she taught me about sex and we started having sex every night and then she said I'm going to marry you some day and four months after having sex she got pregnant

I was nineteen, fresh out of high school, crashing at home with my step-sister Lena. She was twenty-two, all curves and confidence, with that knowing smirk that said she owned every room. Our parents were clueless, buried in their own drama, leaving us alone most nights. It started one humid evening. I walked in on her in the shower, water streaming down her full tits, hand between her thighs. She didn't flinch—just locked eyes and crooked a finger. "Come here, little bro. Time you learned something real." Heart pounding, I stripped and stepped under the spray. Her soapy hands gripped my cock, stroking firm and slow, thumb circling the head until pre-cum slicked her palm. "Feel that?" she whispered, guiding my fingers to her wet slit. I rubbed her clit, felt her hips buck as she moaned low. She dropped to her knees, took me deep—tongue swirling, throat relaxing around my shaft. I gripped her wet hair, thrusting until I exploded, her swallowing every drop. That night, she rode me in my bed. Straddled my hips, sank down on my throbbing dick, her tight pussy clenching as she ground hard. "Fuck me like you mean it," she gasped, nails digging into my chest. We went at it raw, every position—me pounding her from behind, her ass slapping against me, until she came shuddering, soaking the sheets. Every night after, same deal. She'd sneak in, wake me with her mouth, then fuck me senseless—missionary with her legs wrapped tight, whispering filthy promises. "Gonna marry you someday, kid. Make this permanent." Four months in, she missed her period. Pee stick showed positive. She grinned, hand on her belly. "Our little secret's growing."

Lena's grin widened, eyes gleaming as she pressed my hand to her flat belly. "Feel that? Our kid's already kicking up trouble." She pulled me close, her lips crashing into mine, tongue demanding. We tumbled onto her bed, clothes shedding fast. She shoved me flat, climbing over me, her heavy breasts swaying. "Gonna fuck you slow tonight," she murmured, positioning my cock at her entrance. Slick heat enveloped me inch by inch, her walls fluttering as she bottomed out. She rocked her hips in a deliberate grind, clit rubbing my base, breaths hitching. I gripped her ass, thrusting up to meet her, the angle hitting deep. Sweat beaded on her skin, her moans turning sharp. "Harder—make me feel it all." Tension coiled tight in my gut as she clenched around me, chasing her peak.

I drove up into her harder, hips snapping with raw need, her pussy gripping me like a vise. Lena's nails raked my shoulders, head thrown back, tits bouncing with each plunge. "Yes—fuck, right there," she gasped, grinding down to take every inch, her juices coating my balls. She leaned forward, lips brushing my ear, voice husky. "This cock's mine forever. Filling me up, breeding me again." Her rhythm faltered, thighs quivering as she chased the edge, inner walls pulsing wildly. I flipped us over, pinning her beneath me, legs hooked over my arms. Pounded deep and relentless, the wet slap of skin echoing. Her eyes locked on mine, fierce and hungry, as her first orgasm hit—body arching, a sharp cry ripping from her throat, flooding me with heat. She clenched tight, pulling me deeper, urging me on.

I didn't stop, thrusting through her spasms, her pussy milking me with every clench. Lena's hands clutched my back, legs locked around my waist, pulling me impossibly deeper. "Don't you dare pull out," she panted, voice raw, her breath hot against my neck. Sweat-slick skin slid together as I angled sharper, grinding against her g-spot. She shuddered again, a second wave building fast—her walls fluttering, hips bucking wildly. "Fuck—I'm coming again," she groaned, teeth grazing my shoulder, body tensing like a bowstring. I felt my own release surging, balls tightening. Pinned her harder, pounding with short, brutal strokes, the pressure unbearable. She shattered first, crying out, nails drawing blood as she convulsed, soaking us both. Holding back just seconds longer, I buried deep and erupted—hot spurts flooding her, mixing with her cream. She hummed approval, holding me tight inside her.

I collapsed onto her, chest heaving, cock still twitching deep inside her soaked heat. Lena's arms wrapped around me, legs locked tight, keeping me buried as aftershocks rippled through us both. Her pussy clenched rhythmically, squeezing out every last drop, our mixed release trickling down her thighs. She nuzzled my neck, lips soft now, breath steadying. "Mmm, that's my good boy—pumping me full." Her fingers traced lazy circles on my back, nails no longer scratching but soothing the red lines she'd left. I shifted slightly, still hard enough to grind slow, stirring our cum inside her. She gasped, hips lifting to meet me, eyes fluttering half-shut. "Already? Fuck, you're insatiable." Her walls fluttered again, greedy for more, pulling me in deeper. The air hung thick with our musk, her scent intoxicating as she rocked beneath me, building fresh friction.

And months went by and we kept having sex until she was getting to close having the baby and then she said are you going to marry me

Months blurred into a haze of relentless fucking. Lena's belly swelled, heavy with our child, her tits fuller, leaking sweet milk that I'd suck from her stiff nipples while pounding her from behind. She'd ride me slow on the couch, pussy stretched and dripping, grinding until we both shattered—her swollen clit rubbing my shaft, my cum flooding her again, breeding deeper. Nights ended with her on all fours, ass up, me slamming home as she moaned, "More—fill your pregnant slut." Her cravings never waned; we'd fuck in the kitchen, shower, against walls, her body adapting, always wet and ready. One evening, close to her due date, she straddled me on the bed, belly round between us, pussy clenching my cock in lazy rolls. Sweat beaded her skin, breaths ragged. She cupped my face, eyes locked intense. "Are you going to marry me?"

Her words hung in the humid air, pussy still gripping my cock like a vice, slick with our endless sessions. I stared up at her flushed face, belly pressing warm against me, those milk-heavy tits swaying with each subtle rock of her hips. "Yeah," I rasped, hands sliding up her thighs to squeeze her ass, pulling her down harder. "Fuck yes, I'll marry you." Thrust up slow, feeling her walls stretch around me, her arousal coating my balls. Lena's eyes lit with fire, a wicked grin splitting her lips. She leaned in, kissing me deep, tongue invading as she ground faster, clit dragging along my base. "Good boy. Now fuck your fiancée—make me cum before the baby decides to join." Her pace quickened, breaths hitching, nails digging into my shoulders. I bucked up, matching her, our rhythm building raw and urgent, her juices soaking the sheets.

Two days later, Lena's water broke in the dead of night, her pussy still tender from our last fuck. Contractions hit hard; we raced to the hospital, her hand crushing mine, sweat-slick skin flushing as she panted through the pain. Hours blurred in the delivery room—doctors barking, her thighs spread wide under bright lights, pushing with guttural moans. I gripped her knee, watching her swollen lips part, our baby crowning slick and red. Then she came—a beautiful girl, tiny fists flailing, vernix gleaming on her wrinkled skin. Lena collapsed back, exhausted, tits leaking milk as the nurse placed the squirming bundle on her chest. Pink cheeks, dark tuft of hair, wailing fierce. "Fuck, she's perfect," Lena gasped, eyes glassy, cradling our daughter close. Her free hand reached for me, fingers intertwining. I leaned in, kissing her forehead, the air thick with new life and her musky scent. That night, baby asleep in the bassinet, Lena's gaze turned hungry. "Missed this," she whispered, parting her legs under the thin gown, postpartum pussy puffy and inviting.