My Lovely Step-Sister

My Lovely Step-Sister

by Jaewon

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I never thought sharing an apartment with Sana would lead to this. She was my step-sister, the girl who came into my life when our parents got married five years ago. At first it was awkward, but Sana made everything easy. She was bright, bubbly, and so damn affectionate. Always hugging me, calling me “oppa” even though we weren’t blood-related, stealing my hoodies, and walking around the house in tiny shorts that made it hard to focus.

Tonight was no different at first. We’d finished dinner and were watching a movie on the couch. Sana had her head on my shoulder, legs tucked under her, wearing one of my oversized shirts that hung off one shoulder. Her long hair smelled like strawberry shampoo, and every time she laughed at the screen, her body pressed closer to mine.

“You’re warm,” she murmured, nuzzling into my neck. “I like nights like this. Just us.”

I wrapped an arm around her, fingers brushing her bare thigh. “Yeah… me too. Feels right.”

She looked up at me with those big, sparkling eyes. The movie was forgotten. Sana bit her lip, then whispered, “I’ve been thinking about you a lot lately. More than a sister should.” Her hand rested on my chest, sliding slowly downward. “Is that wrong?”

My heart hammered. “Sana… you’re my step-sister.”

“But not by blood,” she replied softly, straddling my lap in one smooth motion. “And I know you feel it too. The way you look at me when I come out of the shower. The way you get hard when I sit on your lap like this.”

She ground down gently, feeling me already growing under her. I groaned, hands gripping her waist. “Fuck, Sana…”

“Call me sister,” she breathed against my lips, eyes dark with want. “I like it when you do.”

The fluff melted into heat fast. I pulled her in for a deep kiss, tongues sliding together, her soft moans vibrating into my mouth. She tasted sweet, like the strawberry candy she’d been eating earlier. My hands roamed under her shirt, finding no bra, just soft, full breasts that filled my palms perfectly.

We moved to my bedroom, clothes dropping along the way. Sana pushed me onto the bed and crawled over me, kissing down my chest. “I’ve wanted this for so long, oppa,” she whispered, voice husky. She tugged my boxers down, freeing my hard cock. Her eyes lit up. “So big for your little sister…”

She wrapped her soft hand around the base and leaned in. The blowjob started slow and loving. Sana licked along the underside, then swirled her tongue around the head before taking me into her warm, wet mouth. She bobbed gently at first, cheeks hollowing, eyes locked on mine the whole time. “Mmm… you taste good,” she murmured, pulling off for a second before sinking deeper, relaxing her throat until her nose touched my stomach.

I threaded my fingers through her hair, not forcing, just guiding. She hummed happily, the vibrations shooting pleasure up my spine. Saliva dripped down my shaft as she worked me faster, one hand stroking what her mouth couldn’t reach. It was messy, eager, and full of affection. She’d pull off to kiss the tip or nuzzle my balls, whispering, “I love making my brother feel good.”

I was getting close, but I pulled her up. “Come here, sis. I need you.”

Sana smiled shyly, crawling up and kissing me again. I flipped us so she was underneath, then moved down her body. I kissed her breasts, sucking on her pretty pink nipples until they were hard and glistening. Lower still, until I reached her smooth, soaked pussy. She was dripping already. I licked her slowly, savoring her taste, then focused on her clit while sliding two fingers inside.

“Oh god… oppa… right there!” Sana moaned, hips bucking. Her thighs trembled around my head. She came quickly, a sweet squirt coating my tongue and chin as she cried out my name mixed with “brother.”

I climbed back up, positioning myself between her legs. “You sure?” I asked, rubbing my cock against her slick folds.

Sana nodded, wrapping her legs around me. “Yes. Fuck your sister. Fill me up… breed me.”

The words hit hard. Breeding kink mixed with the sister talk made everything hotter. I pushed in slowly, groaning at how tight and warm she was. Inch by inch until I bottomed out, her walls fluttering around me. “So good… my lovely sister’s pussy is perfect.”

We started moving together. Missionary at first, deep and intimate, eyes locked. I kissed her neck, her lips, her breasts while thrusting steadily. Sana’s nails dug into my back, moaning sweetly. “Harder, oppa. I want to feel all of you.”

I picked up the pace, slamming into her. The bed creaked, skin slapping. She squirted again around my cock, soaking us both, but I kept going. “Gonna cum inside you, sis. Breed this tight little pussy.”

“Yes! Cum in me… make me yours!” she gasped.

I buried myself deep and unloaded, thick ropes of cum flooding her womb. Sana clenched around me, milking every drop, another small squirt mixing with my release.