The Month I Spent in My Sister’s Attic

The key turned in the lock with a sharp click that sounded louder than it should have. As I stepped into Renata’s attic apartment, the air hit me with a blend of sandalwood and a sweet, sultry heat I recognized at once, though I’d never known how to name it. It wasn’t the smell of a sister. It was the smell of a thirty-three-year-old woman who moved through the world knowing exactly what kind of power she had.

—Leave the suitcases in the hall, Adrián. This is your home too —she said, without turning around.

She was standing in front of the floor-to-ceiling window, her back to me, outlined against the orange light of Valencia’s sunset. She wore a dark silk dress, so sheer it looked painted onto her body. My eyes traced it on their own: the line of her back, the curve of her hips, the way the fabric pulled tight at the end, marking the seam of her ass and the stark absence of underwear. I looked away, but it was too late. The image had already stuck to me, and my cock was starting to thicken against the zipper.

—Thanks, Rena —I managed, my throat rough.

The nickname made me feel like a kid, and that was absurdly at odds with what was beginning to happen inside my jeans just from watching the movement of her shoulders.

She turned slowly. Renata didn’t have the fragility of girls my age; she had the confidence of someone who had spent years being looked at. Her face had firm features, with lips that always looked on the verge of saying something better left unheard, and dark eyes that measured me from head to toe without hurrying. Her nipples showed through the silk, hard, two dark points the fabric did nothing to hide.

—You’ve changed, little brother —she said, walking toward me—. You’ve put on muscle. The gym has done you good.

She stopped a breath away. I smelled wine on her breath and the heat her body gave off. She was shorter than me, but in that instant I felt small. She lifted a hand and, with calculated slowness, ran it over my chest and up to my neck. Her fingers were cold, and even so the touch burned.

—You’re tense —she whispered, and her eyes dropped for a second to my crotch, where there was no longer anything to hide. A crooked smile tugged at the corner of her mouth—. Does being alone with your older sister make you uncomfortable? Or does your cock get hard just from smelling me?

—It’s the trip. The fatigue —I lied, feeling sweat bead at my forehead.

She took one more step and erased any distance between us. I felt the brush of her tits against my chest, a slight pressure that sent a current down my spine. She didn’t move away. On the contrary, she slid her hand up to the nape of my neck, threaded her fingers through my hair, and made me hold her gaze.

—There are no secrets in this house, Adrián. Especially not between you and me. If we’re going to share a roof for a whole month, you’re going to have to understand one thing: my rules apply here. And the first is absolute honesty.

She lowered her other hand and, with a brazen move that left me breathless, closed her fingers around the tense bulge in my pants. It wasn’t a brush; it was a slow squeeze, gauging my thickness and length through the fabric. A muffled groan slipped out of me and I felt the head of my cock wetting against the seam of my briefs.

—Wow, little brother —she purred, squeezing again, feeling my cock pulse in her palm—. You’ve got a huge cock. And rock hard. You know what happens to people who desire what doesn’t belong to them?

I didn’t know how to answer. Something had cracked, and through the crack a darkness I couldn’t name was starting to seep in. Renata let go of me, but not to step away—she circled me toward the kitchen, letting her nails just barely rake my back as she passed.

—Take a cold shower —she said over her shoulder—. You’re going to need it. Tonight we’re having dinner alone, and I want you to pay very close attention to what I’m going to teach you.

I stood frozen in the middle of the living room, pulse racing, my cock leaking into my underwear, with the uncomfortable certainty that my sister had just opened a door that would no longer close.

***

The icy water did nothing. Every drop running down my back only brought back the pressure of her fingers squeezing my cock over the fabric. I jerked myself off fast under the spray, forehead pressed to the tiles, imagining her mouth. I came in two minutes, with a choked grunt, spitting white ropes against the shower screen. It didn’t relieve a damn thing: as soon as I turned off the tap I was half hard again, thinking about the way she’d looked at the bulge in my pants.

I dried off briskly and put on nothing but gray sweatpants, bare-chested. The steam fogged the mirror, but it didn’t erase Renata’s image.

When I left the bathroom, the apartment was in dim light, lit only by a few candles in the living room. The silence was thick, broken only by soft music coming from the speakers. I walked barefoot, trying not to make a sound, and stopped dead at the threshold.

Renata was there, but not as I’d left her. She had taken off the dress. She wore a burgundy lace set that looked designed to accentuate every inch of her maturity. The bra lifted her tits high, carving a deep cleavage the candlelight spilled into. She was stretched out on the leather sofa, one leg drawn up and the other extended, showing firm, taut thighs and, between them, a lace triangle sheer enough to make out the dark hair of her cunt.

—You were taking too long —she said, lifting a glass—. Were you jerking off in the shower thinking about me, little brother?

Her eyes roamed over my bare torso. They paused on my shoulders, slid down my abs, and ended where the gray cotton concealed nothing: my cock was hardening again under the sweats and the bulge was impossible to hide. A spark of triumph flashed in her gaze.

—Come here, Adrián. Bring the bottle from the table.

I obeyed like an automaton. When I bent to pour her some, the smell of her skin hit me full force, mixed with the unmistakable, tart scent of a wet pussy. Renata didn’t move; she let my arm brush her knee. Her thigh was burning hot.

—Do you like what you see? —she asked, in a voice that was velvet and poison in equal measure—. Don’t lie to me. I know you’ve spent years imagining what your older sister’s body looks like under her clothes. How my cunt smells. What my tits taste like.

—Rena, we shouldn’t… —my voice was a thread, a weak protest she brushed aside with a gesture.

—What we should or shouldn’t do died the second you walked through that door, little brother. We’re adults. And we’re the only ones who know what runs in our veins.

She set the glass down and rose to sit facing me. The lace barely contained her breasts. She placed her hands on my waist and pulled me into the space between her open legs. Her face was level with my fly and, without taking her eyes off mine, she ran her tongue over her lips and pressed a wet kiss right over the bulge in my sweats, biting my cock through the fabric.

—No one in this world knows you better than I do —she murmured, sliding my hands up her back, digging in her nails—. No one knows better what makes you shake. And what you need right now is for your sister to empty these balls you’ve been carrying around for twenty-some years because of me.

She stood without letting go of me, driving me back until my spine hit the wall. She pressed her whole body against mine. I felt the heat of her belly, the softness of her tits flattening against my chest, and her hand returned to my crotch, this time slipping inside the waistband of my sweatpants, wrapping around my cock directly with the skin of her palm.

—Fuck, what a cock you’ve got —she moaned when she felt it naked between her fingers, squeezing from base to tip with calculated slowness—. You’re dripping already, little brother. Look how you’re drooling juice for me.

She dragged her thumb over my glans, collecting the thick drop that had appeared, and brought it to her mouth, sucking her finger without taking her eyes off mine.

—Look at me —she ordered, and her voice took on that commanding tone again that made me want to obey—. Tonight you’re going to learn that here you don’t belong to any girl your own age. You’re mine. This cock is mine.

She lowered her hand to the cord of my pants and, with an expert motion, undid the knot. The sweats fell to the floor. My cock sprang hard against her stomach, marking her skin with a strand of pre-cum. Renata looked down, bit her lip, and wrapped her whole hand around the shaft, starting to jerk me off slowly, squeezing hard, drawing the skin back from the glans with every pass.

—Tonight you’re going to forget we’re siblings —she declared, brushing her lips against mine without quite kissing me, while her wrist kept pumping up and down my cock—. You’re only going to remember that I’m the woman who can destroy you or make you king. And you’re going to choose to serve me on your knees before you bury this dick all the way inside me.

***

Renata’s bedroom was all shadow and satin. The moon slid through the slats of the blinds and drew silver stripes across the bedspread. She went in first, not letting go of my cock, literally dragging me by it into her territory with the calm of someone who knows the prey has stopped fighting.

—Sit —she said, pointing at the edge of the bed.

I let myself drop there, completely naked, my cock stiff and pointed at the ceiling, pulse hammering at my temples. She stood in front of me. From where I was, the burgundy lace triangle was at eye level. I could see the dark stain of wetness marked on the fabric, the shape of her swollen lips pushing the lace outward. The raw smell of her cunt clouded my judgment.

—You’re shaking —she said, stroking my shoulders with unbearable slowness—. All your life you’ve been the little brother, the pride of the house. But now you’re just a guy with a hard cock craving the one woman he’s forbidden to want. And that’s exactly what you like best, isn’t it?

I couldn’t speak. She reached behind her and, in one smooth motion, unclasped her bra. The lace fell to the floor. Her tits were free, heavy, brown nipples raised and large areolas pointing at my face. The sight tore a gasp from me and I ran my hand over my cock so I wouldn’t cum outright.

—Touch them —she ordered. It wasn’t an invitation—. I want you to feel the weight of your sister’s tits in your hands.

I lifted my hands almost fearfully and cupped both of them. They felt heavy in my palms, warm, soft on the outside and firm within. I pinched her nipples between thumb and forefinger and she arched her back with a sigh that scorched my ears. I leaned in and caught one nipple in my mouth, sucking hard, tugging with my teeth, while my other hand kneaded her other breast.

—That’s it. Eat them, little brother. Suck on them like you’re mine again —she whispered, grabbing my head and pressing it against her chest until I could barely breathe—. Smell the wet pussy I’ve been saving for years just for you.

I slid one hand down her belly and slipped two fingers inside her lace. When I touched her cunt I found it soaking wet, swollen, the hard clit jutting out between her lips. I pushed my fingers deep and felt her clamp down inside, squeezing me.

—Fuck, Rena, you’re dripping —I groaned against her tit.

—I’ve spent weeks thinking about having you like this —she panted, moving her hips against my hand—. Every time we talked on the phone I’d put my fingers in myself thinking about my little brother.

She pulled back a centimeter, just enough to look at me with a total, blazing dominance. She took my fingers out and brought them to her mouth, sucking them clean to the knuckle, swallowing her own slick without breaking eye contact.

—Now you —she said, and turned around.

She bent over the bed, propped on her forearms, offering me her ass. The lace panties had ridden up between her cheeks and outlined the whole crease. I knelt on the floor behind her and pulled the fabric down with my teeth. Her cunt opened fully before my face: pink inside, shiny, with a string of thick slick running down her thigh.

—Eat me —she ordered over her shoulder—. And don’t you dare stop until I come in your mouth.

I buried my face without thinking. The first lick was long, from clit to asshole, ripping a cry from her. Renata smelled like a female in heat and tasted salty, dense, with a tart edge that made my cock ready to explode. I drove my tongue inside her and then moved up to suck her clit, sucking on it between my lips like a nipple, circling it, tugging gently with my teeth.

—That’s it, you son of a bitch, that’s it… —she panted, crushing my face against her cunt, fucking my mouth with her hips—. Put it in deeper, put your tongue deeper… God, you’re so good at this for your first time eating out your sister…

I slid two fingers in while I kept sucking her clit. I felt her inner walls clench around my knuckles and picked up the pace, fucking her with my fingers while I sucked her swollen bud. Renata started trembling, grabbed the sheet in both fists, and let out a long, guttural moan that filled the entire bedroom.

—I’m coming, I’m coming, don’t stop…

She came by pushing herself against me, clamping one hand on my neck so I wouldn’t pull away. I felt my mouth fill with a hot, thick liquid, felt her cunt pounding against my tongue in long spasms. I swallowed it all, sucking her clean to the last drop, my chin soaked.

—Lie down. Face down —she said when she’d finally caught her breath, her voice metallic again—. I don’t want you looking at me while I decide what I’m going to do with you.

I rolled over and buried myself in the mattress, my cock flattened against the satin. I heard a drawer open and the rustle of something that wasn’t skin. My heart stopped.

—You’ve been a good boy with your tongue —she said, sitting on my lower back, her warm weight crushing me into the bed—. But now I’m going to show you what it really means for your older sister to be your owner.

I felt something cold and slick sliding down the crack of my ass. Her fingers, slicked with lube, played with my little hole, pressing, yielding, pressing again, until one slipped inside. I moaned into the pillow.

—Relax, little brother —she whispered, moving her finger in circles, opening me up—. Let your sister teach you what it means to truly give yourself.

She pushed in a second finger and I felt my ass open around her knuckles. It burned, but it was a burn loaded with pleasure that made me push my ass back, asking for more. And then I felt something thicker, firmer, pressing against the entrance. The first shove made me claw at the satin. The harness rubbed her ass against mine. The invasion was slow, millimeter by millimeter, but it came with a jolt so intense I let out a choked cry.

—Open up for me —she panted, driving in a little more—. Open up and let me fuck you the way you deserve.

When she was all the way inside, she stopped, letting me feel the fullness. Then she started moving. At first slowly, measuring me, and then faster, pounding my ass with a brutal rhythm, holding my hips to keep me still. Every thrust squeezed my cock against the mattress and ripped another moan from me. I started moving my ass back on my own, meeting her thrusts, fucking her back.

—Look at you —she mocked, leaning down to bite my earlobe—. The family heir, with his ass spread, begging his sister for more.

And then something clicked inside me. Maybe it was humiliation pushed to the limit, or maybe it was that her own desire had made her careless. I felt her panting, vibrating with excitement as she dominated me. In a surge born from a rage I’d held in for years, I braced on my forearms and, with a violent twist, threw her down.

She wasn’t expecting it. She cried out in surprise when her shoulders hit the mattress and I ended up over her, pinning her wrists above her head. I tore the harness off and threw it to the floor.

—What are you doing? —she gasped, but there was no fear in her eyes, only an electric spark.

—The tyrant act is over, Rena —I said, with a voice that came from deep inside me, loaded with an authority I didn’t know I had—. You woke me up. Now you’re going to suck this cock the way you’re supposed to.

I let go of her, but not to let her escape. I grabbed her hair and brought her face to my cock, which was hard and dripping between us. She opened her mouth without resisting, and I shoved it all the way down her throat in one thrust. I felt her choke on it, saw tears fill her eyes, and I didn’t stop. I fucked her mouth holding her by the nape, driving to the back of her throat, hearing the wet sound of her swallowing around me every time I buried it to the balls.

—Suck me properly, sister. Swallow it like you’ve wanted to for years.

Renata moaned around my cock, moving her tongue under the glans, sucking with hollow cheeks. Saliva dribbled down her chin, mixed with the pre-cum I was spitting into her mouth. I pulled out and she licked my balls, one by one, taking them whole into her mouth, looking up at me from below with a devotion that was no longer dominant at all.

—Fuck me now, please —she begged, lying back and spreading her legs—. Put it in my cunt, little brother, put that cock in me all the way to my womb.

I grabbed her legs and threw them back until her knees touched her tits. Without asking permission, without preamble, I drove into her in one thrust that stole her breath. Her cunt was so wet my cock sank all the way to the base on the first push.

—Adrián! —she screamed, and this time it wasn’t an order, it was a plea.

I started moving with savage hunger, setting the rhythm myself, each thrust deeper and more possessive than the last. I could feel the head slamming into her depths, her cunt stretching around my shaft, her tits bouncing with every impact. I was no longer the little brother looking for approval. I grabbed one breast and dug my fingers in hard enough to leave a mark.

—Tell me who’s in charge now —I demanded, hoarse, never stopping—. Say it.

—You… you, Adrián… don’t stop, fuck me harder… —she moaned, eyes rolling back, completely surrendered.

I pulled out, yanked her over, and turned her onto all fours. I gripped her ass with both hands, spread her cheeks wide, and drove my cock back into her cunt from behind, grabbing her hair with my other hand like reins. I fucked her doggy-style, brutally, hearing the wet slapping of our bodies and her muffled cries against the pillow.

—Look at me stuffing you, Rena. Look at your little brother fucking your cunt like nobody has ever fucked it.

—Yes, yes, yes… come inside, please, come inside your sister…

I pounded her faster, deeper, feeling my balls tighten, feeling the orgasm gathering at the base of my cock. When I couldn’t hold back any longer, I grabbed her hips, drove all the way in, and came inside her with a roar, firing thick ropes against the walls of her cunt. I felt my semen spilling out around the edges, running down her thighs.

Renata came too, with a long cry, clamping down on my cock from inside with spasms that milked me of every last drop.

Then I understood that I had always wanted this: for me to take control, to dominate her with the same intensity with which she had humiliated me. My older sister had become my equal and, at last, something that was mine. I stayed inside her a little longer, feeling my cock slowly soften against her soaked walls while she let herself fall onto the mattress with her ass lifted and my cum dripping out of her cunt.

***

The next morning the sun flooded the living room, but the atmosphere was anything but innocent. Renata was in the kitchen, her back to me, making coffee. She was wearing one of my white shirts, which barely covered the tops of her thighs and, whenever she moved, revealed the lower curve of her naked ass. She hadn’t put on panties. Seeing her in my clothes on her thirty-three-year-old body sent my pulse racing and made my cock hard instantly under my boxer briefs.

I walked toward her without making a sound. When she noticed me, her shoulders tensed, but she didn’t turn around. She knew what was coming.

—Good morning, Rena —I whispered, pressing myself against her back.

I slid my hands around her waist, slipping them under the fabric until I found her skin. I lifted the shirt up to her navel and grabbed her tits from underneath, squeezing them, pinching her nipples between my fingers. She sighed and rested her head on my shoulder, surrendering, while I rubbed my hard cock against the seam of her naked ass. There was no trace left of the icy woman who had received me on the first day.

—Adrián… the coffee’s going to burn —she murmured, though her hips were already seeking mine, moving to settle me better between her cheeks.

—Let it burn —I answered, turning her so she would look at me.

I lifted her effortlessly and sat her on the cold marble counter. I spread her legs with a shove and saw her swollen cunt, still red from the night, gleaming with wetness. I pulled down my boxer briefs and took out my cock, hard, throbbing. Renata looked down and licked her lips.

—Put it in me already, little brother. Just put it in.

I leaned in, pressed the head to her entrance, and shoved in all at once. It sank to the hilt with a wet splash. She let out a long moan and wrapped her legs around my waist, pulling me in with an urgency that brooked no delay.

—I like that you don’t ask —she said, stroking my nape while I started to fuck her against the marble—. I like that you take me as if I were yours by right, that you shove your cock in whenever you feel like it.

—You are —I replied, burying my face in her neck, inhaling that scent of coffee, hot skin, and fucked cunt.

What happened in the kitchen was slow and intense. I fucked her steadily, letting her feel every centimeter of cock going in and out, feeling how her cunt sucked at my glans every time I pulled back. I unbuttoned her shirt one button at a time while I kept moving inside her, until her tits were bare. I leaned down and sucked one nipple, nipping it softly, while increasing the pace of my thrusts.

She muffled her moans in my neck so they wouldn’t escape through the open windows, digging her nails into my back. The world outside didn’t exist; only what happened under that roof existed, a brother’s cock buried to the balls in the other’s cunt.

—I’m coming, Adrián… I’m coming again, fuck…

I fucked her harder, my hands on her ass to keep her pressed against me. I felt her cunt closing around my cock in waves and I couldn’t hold on any longer: I emptied my second load of the morning inside her, driving in to the hilt with every spurt, biting her shoulder so I wouldn’t shout.

When we were done, I left her on the counter, panting, shirt open and her cunt dripping my cum onto the marble. I kissed her on the forehead, a gesture that mixed brotherly affection with the most absolute possession.

—Tonight we close out the month —I told her in her ear—. And we’re going to do it my way.

***

The last night in the attic didn’t feel like a farewell, but like a coronation. The air was charged, almost solid. There were no more power games left; only a certainty that had settled between us like a natural law, reversed forever.

Renata was waiting for me in the living room, bathed in the flood of moonlight coming in. She was naked, a glass of wine in her hand, watching me enter with the serenity of someone who has already surrendered completely. Her nipples had gone hard just from hearing me arrive, and her legs were slightly apart, letting me see her shaved, shiny, already wet cunt.

—I knew you’d come —she said, in a hoarse whisper—. I was waiting to hand you the keys to this place. And this cunt.

I walked to her without hesitation. I held her by the nape and took the glass from her with my other hand, never taking my eyes off hers. I pulled her against me and felt the shock of our naked skin. She exhaled a long sigh of relief, as if all her authority in front of the world was nothing more than a weight I had finally lifted from her.

—Get on your knees —I ordered—. First things first, I want you to suck me off.

She obeyed without a word. She sank to the floor, pulled down my pants, and took out my cock, already hard. She took it into her mouth hungrily, all the way down, sucking me with a new devotion. She pulled off, licked my balls, and took me back into her mouth, her hand pumping the base in the same rhythm as her lips. Saliva ran in strings, soaking my cock and balls.

—Look at me while you suck me —I demanded, grabbing her hair.

She lifted her eyes to mine without taking me out of her mouth. Fucking her like that, with her gaze locked on mine, drove me to the edge. I pulled away before I came and lifted her from the floor.

—There’s no going back, Rena —I told her, pushing her toward the leather sofa, the place where everything had begun to crack weeks earlier—. Tomorrow we’ll leave here and go back to being the perfect siblings in front of Dad and Mom. But every time you look at me at a family dinner you’re going to remember how I made you mine.

—I know —she replied, lying back and spreading her legs—. And that’s what keeps me alive. The idea of being your secret, Adrián. Come on, put that cock in me again.

I climbed over her and drove my cock into her cunt with a slow thrust, looking into her eyes as I filled her completely. Renata moaned, arching under my body. I fucked her slowly at first, with an almost ceremonial determination, coming almost all the way out and then pushing back in to the hilt. Every movement was a signature on her skin.

Then I changed pace. I put her ankles on my shoulders and started pounding her faster, deeper, my balls slapping against her ass with every shove. The sofa creaked. She clutched the cushions, moans filling the living room, repeating my name with a surrender that erased any idea of guilt.

—Get on top —I said, pulling out and lying down myself—. Ride me however you want.

She straddled me without hesitation. She grabbed my cock, positioned it at her cunt, and lowered herself in one go, swallowing me whole. She began to move, up and down, her tits bouncing in front of my face. I gripped her hips and helped set the rhythm, driving her all the way down every time. She leaned back, propping herself on her hands against my thighs, giving me the view of her cunt stretched around my cock every time she lifted off and sank back down.

—Look at it going in and out —she panted—. Look at my brother’s cock filling me.

I grabbed her, sat up without pulling out, and turned her around. I put her on all fours on the sofa and entered her from behind, gripping her waist, fucking her with short, deep thrusts. I ran one hand around to the front, found her clit, and rubbed it at the same rhythm I was pounding into her.

—I’m coming… Adrián, I’m coming… —she panted, pressing her ass back against my pelvis.

I felt her cunt clench around my cock in spasms, felt her whole body stiffen. I held on to finish with her and, when I couldn’t anymore, I gripped her hips and came inside her for the third time, emptying myself to the very last drop with a long growl against her nape.

When the world shrank to the beat of our chests pressed together, I turned her around, pulled her into my arms, and felt the semen slip between her thighs, wetting my stomach. She hugged me with a force that took my breath away. We had crossed the threshold and, on the other side, there was no abyss—only fullness.

—You’re mine —she whispered against my ear as we caught our breath—. My brother, my lover. Forever.

—And you’re mine —I answered, kissing her forehead—. The month is ending, but ours has just begun.

We stayed there, watching the dawn begin to color the sky over Valencia, my cock hardening again halfway against her thigh, knowing that before we dressed I was going to fuck her one more time. The attic would keep the secret, but we would carry its mark in every stolen glance and every “casual” brush that, from now on, would define what we were when no one was looking.