I Fucked My Little Sister the Night She Turned 18 – Her First Time with Brother (Part 1)

As I stood outside Riya's bedroom door that night, my heart pounded in my chest like a jackhammer. It was midnight and everyone else had retired to their rooms after the family celebration for her 18th birthday. The house was quiet except for the occasional creak of floorboards or distant chirping of crickets from our yard.

Earlier, while mingling with cousins and uncles at the dinner table, I couldn't help but steal glances at my little sister. Riya's transformation into a woman was nothing short of astonishing. Her body had ripened to perfection – slim yet thick in all the right places. Those perky C-cup tits looked irresistible in her low-cut top, and her waist cinched dramatically before curving out to full, juicy hips and an ass that could stop traffic.

Throughout my adolescence, Riya had been more than just a sibling to me; she was my best friend. We shared secrets, fought over toys as kids, and cuddled on the couch while watching movies together. Our relationship grew even closer during her teenage years when I'd catch glimpses of her in various stages of undress around the house – once accidentally walking into her room as she changed from gym clothes at 16, another time discovering her sitting on my lap in short skirts at 17. Each incident sent my libido soaring and left me with painful erections.

Late-night talks had revealed a side of Riya I never knew existed: an innocent yet decidedly naughty girl harboring secret fantasies about me. "I think about you all the time," she confessed, her face flushed as we lay on her bed. "Sometimes when I masturbate..." She trailed off with a shy giggle that only stirred my lust further.

Playful wrestling matches had also become a regular occurrence since puberty hit. During one particularly heated bout, my cock pressed firmly against her belly as I tried to pin her down. Riya's eyes widened in surprise yet she didn't push me away. A moment of understanding passed between us – the same taboo desire simmering just beneath the surface.

Now, with Riya officially an adult and my own forbidden cravings boiling over, it seemed fate had decided to bring our long-suppressed desires to a head.

"Riya?" I whispered, knocking softly on her door, the sound muffled by the wood. There was no response, so I knocked again, louder this time. Suddenly, the door creaked open just enough for her voice to slip out.

"Bhai... please come in," she breathed, her words thick with anticipation.

Stepping inside, I shut the door behind me and leaned against it, taking in Riya's disheveled appearance – her long black hair was tousled, eyeliner smeared slightly, and she wore nothing but a tiny pair of panties. The sight sent a wave of lust crashing through my body.

"Happy birthday," I managed to croak, gesturing lamely towards the presents scattered across her bed.

Riya smiled coyly and padded over to me in bare feet. "Thank you." Her small hand reached up to cup my cheek, her fingertips trailing down my neck before dipping into the open collar of my shirt. "I wanted it to be special tonight... a gift from you."

She pulled back slightly, her eyes locked onto mine, filled with an unspoken promise. "Come here," she beckoned, leading me towards the bed.

Riya dropped to her knees in front of me as I sat down. Her hands moved to unzip my pants and pull them down along with my boxers. My stiff cock sprang free, slapping against my belly. Riya's gaze widened at the sight, her breath quickening visibly. Without a word, she leaned forward and brushed her lips against the tip of my cockhead, tasting pre-cum.

Fuck, that was it – I couldn't hold back any longer. I reached down and wrapped a hand around her soft hair, guiding Riya's mouth onto my shaft. Her warm lips enclosed me, moving slowly up and down as she experimented with different techniques. My eyes rolled back in ecstasy as she took more of me into her throat.

"Fuck... so fucking good," I groaned, feeling every inch of my cock slide in and out of her velvety mouth. "You're learning fast."

Riya looked up at me between sucks, her dark eyes gleaming with lust and pride. She pulled off briefly to gasp for air before diving back down, this time taking nearly all of me into that talented little mouth.

My balls tightened as her lips worked me relentlessly. I could feel my orgasm building rapidly but forced myself to slow things down – we had only just begun our night together.

"Enough," I finally commanded, pulling Riya off my cock with a pop. She pouted playfully before rising to kiss me deeply on the mouth. Our tongues intertwined as if making up for lost time, both of us drunk on lust and excitement.

I pushed her onto the bed, crawling over her supine form. "You're so sexy," I told her, tracing the curves of her body with my fingers. Riya's nipples hardened beneath my touch; she squirmed underneath me, clearly desperate to feel more.

"Please, bhai..." she begged, parting those plush lips to reveal a hint of tongue and teeth. Her breath smelled sweetly of mint and sex. "Give it to me."

My cock throbbed painfully at her words. Lowering myself between her legs, I spread them apart with my hands, drinking in the sight of her bare pussy – pink, swollen, and absolutely dripping wet.

"I'm going to eat you out first," I said huskily, dipping my head to nuzzle her clit gently. Her hips bucked off the bed at the sensation, drawing me closer to that throbbing bundle of nerves. The musky aroma of female arousal enveloped me as I licked and sucked on her pussy lips, teasing her entrance.

Riya's moans grew louder and more urgent with each pass of my tongue. She tasted like sin – a heady mix of innocence and depravity. My cock pulsed against the sheets, weeping pre-cum in anticipation.

Finally, unable to resist any longer, I positioned myself between her legs and nudged the tip of my dick towards her virgin hole. Riya's eyes went wide as I pushed forward, slowly easing inside her tight pussy. The heat, wetness, and resistance were like nothing I'd ever experienced before.

"Aaah... fuck..." she hissed through clenched teeth, her nails digging into my shoulders. "So big..."

"Relax," I encouraged, pausing to let her adjust. "You're doing great." My hands roamed over her body as I began to thrust in earnest – slow at first, gradually picking up speed and depth.

Riya's moans turned to cries of pleasure as I filled her repeatedly. Her pussy clenched around me like a vice, milking my cock with each stroke. The headboard creaked loudly against the wall as we fucked passionately, our bodies moving in perfect sync.

"Fuck your little sister's tight pussy, bhai," she gasped between breathless moans. "I've wanted your cock since I was 16."

The words sent a jolt of pleasure through me, making my hips piston harder and faster. "Cum inside me, Riya. I want my brother's cum deep in my womb tonight." Her desperate plea nearly undid me.

Suddenly, she shifted beneath me, wrapping her legs around my waist and guiding me to change positions. As we rolled over, she straddled my lap with a playful grin spreading across her face. "Your turn now," she said, gripping my cock and lining it up with her dripping pussy.

With Riya in control, I watched as she lowered herself onto my shaft inch by agonizing inch until she was sitting fully on me, her wet heat engulfing my entire length. Her chest heaved with each breathless moan as she rocked back and forth, riding me with a hunger that left me breathless.

"Riya..." I groaned, the sensation of her tight pussy gripping me relentlessly driving me wild. "You feel incredible..."

"I know," she panted, grinding against me with reckless abandon. "I've always wanted this."

As we continued fucking in silence, broken only by wet slapping sounds and our heavy panting, it dawned on me that this was more than just sex – it was the culmination of years of suppressed desire and forbidden fantasies.

Eventually, she dismounted my lap to let me fuck her standing up against the wall. The new angle allowed for even deeper penetration as I pounded into her from behind, grabbing fistfuls of her long hair for leverage. She cried out each time my cock buried itself inside her, urging me on with whispered pleas to "fuck her harder, bhai."

After thoroughly abusing her pussy in every position imaginable – missionary, doggy-style, and even a frenzied sixty-nine session where we ate each other's pussies simultaneously – I finally flipped Riya onto her back and settled between her spread thighs. As I entered her once more, this time with renewed vigor, she wrapped her arms around me tightly.

"I'm yours now, bhai," she whispered into my ear as our lips met in a passionate kiss. "Forever."

The words sparked something primal within me, and I fucked her like an animal – hard, rough, relentless, until we were both on the brink of climax. With a few more powerful thrusts, I buried myself deep inside Riya's quivering pussy and unleashed a massive load, cumming so intensely that it felt like my balls had been turned inside out. I continued to pump into her as wave after wave of pleasure crashed over me.

Riya arched her back, meeting each stroke with wild abandon before finally screaming her orgasm – hot juices gushing from her core to soak the sheets beneath us. My cock pulsed and throbbed one final time before spilling its seed deep within her, painting her insides with my cum. We both collapsed onto the mattress in exhaustion and satisfaction.

For a long moment, we simply lay there, chests heaving as our bodies recovered from the intense lovemaking session. I brushed a stray lock of hair off Riya's sweaty face before planting a gentle kiss on her forehead.

"Thank you," she murmured sleepily, her eyelids heavy with post-orgasm bliss. "That was... everything."

I smiled, knowing exactly what she meant. "Anytime, sis." With one final embrace, I eased out of her sated body and slipped off the bed to retrieve a towel from her bathroom. Returning to her side, I gently cleaned Riya up before tucking her in snugly under the covers.

"I'll sleep on the couch tonight," I whispered against her ear as we embraced once more.

Riya shook her head vehemently, locking eyes with mine. "Stay with me." Her voice was husky from exhaustion and sex. "I want to feel your warmth."

Without another word, I climbed into bed beside her, pulling Riya close so our bodies intertwined. We fell asleep within minutes, the scent of sweat and sex clinging to us like a cloud.

And so began our secret affair – one that would continue long after tonight's explosive debut. The guilt lingered in the back of my mind but was swiftly drowned out by the intoxicating thrill of doing something so wrong yet oh-so-right.

As Riya slept fitfully beside me, I knew we were both hooked on this taboo pleasure and nothing would ever be the same again.

to be continuedd...