My Lovely Sister

My Lovely 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.

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We didn’t stop for long. After some fluffy cuddling, her head on my chest, fingers tracing my skin, she got that mischievous look again. “I want to ride my brother now.”

She pushed me onto my back and straddled me. Sana grabbed my cock, still slick with our juices, and sank down slowly. The sight of her taking every inch, tits bouncing slightly, was incredible. Once fully seated, she started grinding, then bouncing in cowgirl. Her long hair swayed, breasts jiggling with every movement.

I reached up, groping them, pinching her nipples. “Ride me good, sister. Show me how much you love your oppa’s cock.”

Sana moaned louder, bouncing faster. The wet sounds were filthy. She leaned forward, smothering my face with her soft tits while riding me hard. I sucked on her nipples, thrusting up to meet her. She came again, squirting all over my stomach, body shaking beautifully.

“Don’t pull out,” she panted, still moving. “I want another load deep inside.”

I grabbed her hips and fucked up into her, chasing my second orgasm. When it hit, I held her down, pumping more cum into her already full pussy. It leaked out around my cock, but she just smiled dreamily.

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Later, I bent her over in doggy style. Sana arched her back perfectly, ass up, face down on the pillow. I slid back in easily, her pussy creamy from the previous creampies. I gripped her hips and pounded her hard, watching her ass ripple with every thrust.

“Fuck me like you own me, brother,” she moaned into the pillow. “Breed your step-sister again.”

The sister kink drove me wild. I smacked her ass lightly, then reached around to rub her clit. Sana squirted hard in this position, gushing onto the sheets, legs trembling. I kept railing her through it, deep and rough, until I filled her with a third creampie. So much cum that when I pulled out, it poured out of her in a thick, white stream.

We collapsed together, sweaty and breathing hard. The fluffy side returned full force. I pulled Sana into my arms, kissing her forehead, her cheeks, her lips softly. She nuzzled into my neck, one leg thrown over mine.

“I love you,” she whispered. “Not just as a sister. More than that.”

“I love you too,” I replied, holding her close. “My lovely Sana.”

We talked quietly for a while — about how long we’d both felt the tension, how no one else could know, how this felt right despite everything. She traced circles on my chest while I gently stroked her hair and back.

But the heat wasn’t done. After resting, she gave me another loving blowjob, cleaning me slowly with her mouth and tongue, tasting our combined mess. Then we went for one more round in cowgirl, slower and more intimate this time, her riding me while we kissed deeply. I filled her again, whispering breeding promises against her lips as she squirted one last time.

By the end, Sana was a beautiful mess — hair wild, body marked with light hickeys, cum leaking down her thighs. She curled up against me under the covers, content and glowing.

“Stay with me like this forever, oppa,” she murmured sleepily.

“Always, sis.”

The apartment felt warmer now. Our secret, our connection — fluffy love wrapped around raw desire. My lovely step-sister had never seemed more perfect.

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Hope this fluffy yet intense sister story hit the right spot. - Jaewon