My Sister Came Into My Room After Midnight

“Renata, tonight you’re sleeping with me,” I texted her while she was out at a bar with her friends. It was the kind of message I sent without thinking, a silly provocation, one of those things we’d been exchanging for years without anything ever happening.

“I’ll think about it,” she replied.

I laughed to myself in the darkness of my room. I enjoyed those games with her. What I hadn’t calculated was that that very night they would stop being a game.

After midnight I heard my bedroom door open slowly. I didn’t turn on the lamp. I recognized her perfume before her silhouette.

—Is your offer still on? —she asked in a low voice.

—Of course —I replied, and reached for the switch.

—Don’t turn on the light —she stopped me.

I stayed still. In the shadows I saw her take off her clothes, unhurriedly, with her back to me. She pulled off her T-shirt in a slow movement, and the dim light barely sketched the curve of her waist, the line of her shoulders, the clasp of her bra marking her skin. Then she took off her pants, slipping out of one leg at a time, and when she bent down she gave me a view of her ass packed into a tiny lace thong that barely covered what it had to. My mouth went dry. Only then, looking at her like that, did I understand how beautiful my sister was. I’d always known it, I suppose, but I had never allowed myself to think it in those words. I had never allowed myself to think she had a body made for fucking.

She got into bed. The mattress sank on her side.

—Hold me —she said.

I moved closer. I put one arm around her and she settled against my chest as if it were the most natural thing in the world. Her smell was making me dizzy. I buried my face in her neck almost without realizing it and felt her sigh; that kind of caress turned her on, I noticed right away. I left a few soft kisses there, barely a brush of lips, then a little wetter, the tip of my tongue grazing behind her ear. Renata answered with a longer sigh and arched her neck just enough to give me more room. My hands slid down her waist and my legs tangled with hers. My cock was already hard as a rock, trapped in my boxer briefs, and when we tangled up it ended up pressed against her ass. She felt it. I know because she shifted a millimeter back, as if looking for that contact, and I had to bite my lip to keep from moaning. Her skin was burning. It was soft in a way that was hard to bear.

My fingers brushed the edge of her underwear. Lace. I slipped just under it with the pad of one finger, following the elastic along her hip, feeling the fabric give against her skin. She didn’t stop me.

—You’re a total snack —I whispered in her ear, my voice rough—. A hot snack. You have no idea how badly I want to eat you all up.

—Flattering me, are you? —she replied with a little laugh, pressing herself a bit closer to me.

I stroked her bare back, went up to the clasp of her bra, and stayed there, playing with the hook between my fingers. I felt her breathing deeper, slower, settling against me as if she wanted me to keep going. My hand went forward on its own, around her waist, and from there I slid up to brush the underside of one breast over the lace. I felt the nipple harden against my palm through the fabric. Renata let out a small, restrained gasp, and I closed my eyes. I wanted to unhook her bra, take it off once and for all, bite her breast, go lower and check with my fingers whether her thong was as wet as I imagined. And then something in me reacted. She’s your sister. She’s the most forbidden woman there is for you. I pulled my hand away and left it resting on her hip, contenting myself with that, with the warm weight of her body against mine, with my hard cock buried against her lace-covered ass.

Even so, that night was one of the best I remember. Just having her there, in my arms, breathing fast and her heart beating against her back.

—Your hands work magic —she murmured, and made me blush in the dark—. Don’t worry, I liked it. Every second. But nobody can know about this.

She said it laughing, as if it were a naughty secret and not a line we had just crossed.

***

A while later she got up to look for her clothes. When I saw her standing there in her underwear, I almost stopped breathing. Black lace panties, tight, outlining every centimeter of her cunt from the front and digging between the cheeks of her ass in back. The bra held her breasts up, with her nipples slightly showing through the fabric. She stretched to gather the clothes off the floor and when she bent down her ass split into two perfect round curves that made me have to cover myself with the sheet. All her sensuality exposed in the dimness of the room, and there I was, watching her, with an erection I couldn’t hide no matter how hard I tried.

Renata noticed. Of course she noticed. Her eyes went straight to the bulge lifting the sheet over me and she didn’t even try to hide her smile.

—You’re devouring me with your eyes —she said, amused—. And apparently, with something else too. Control yourself a little.

I didn’t know what to answer. She came over quickly, leaned over me—the breasts almost brushing my face—and gave me a kiss very close to my lips, so close that I felt the edge of her mouth hook against mine for a second.

—I love you, little brother. See you later.

And she went to her room, leaving me hypnotized, with my heart pounding, my cock throbbing painfully against my boxer briefs, and my head a mess.

Renata had always been outgoing, open-minded. That night I confirmed it. And I knew, with an uncomfortable certainty, that this was going to put me on a road I wouldn’t know how to come back from.

***

From then on I liked it more and more. I used any excuse to hug her. It was a dangerous game, and her flirting didn’t help: sometimes it seemed like she made it worse on purpose.

One morning, before leaving, she took my hand and dragged me into her room. She asked me a favor: to pick her up from the academy in the afternoon. I told her yes, obviously. She got happy and left me another kiss on the side of the mouth before going out, leaving me stunned again in the middle of the room.

I knew that for her all of this was a game. I knew her flirting was part of it. What I didn’t understand was the effect it had on me. I sighed. That kiss made me want many more. Made me want to grab her by the hair, bite her mouth, shove my tongue all the way in, rip her clothes off against the wall, and eat her right there.

I was left alone in her room. I looked around, thinking about a thousand things, and my eyes fell on the dresser drawers. I felt a stupid curiosity. Her clothes. Her underwear.

What I was about to do wasn’t right. I knew it. But curiosity won out. I closed the door and went over to snoop.

When I opened the first drawer I found a parade of tiny lace panties: red, black, pink, blue, some with such a thin crotch it looked like a string. Soft fabrics, intimate. I picked up a black one, held it up to the light from the window, and imagined the fabric there, tight against her cunt, outlining itself between her lips. My cock hardened instantly. I couldn’t help imagining those textures against her skin. The bras matched, made of the same delicate material. Farther back there were sheer stockings and fishnet tights, clothes clearly meant to provoke, to make a guy want to fuck her without taking them off.

And then I found something I hadn’t expected: a pair of condoms.

The discovery left me in shock for a few seconds. I shouldn’t have been surprised—Renata was an adult, she had her own life—but seeing them there stirred something ugly in me. Jealousy. Imagining that someone had already had her, that some other guy had fucked her with those lace panties on, that another cock had been inside my sister, bothered me more than I was willing to admit.

I stayed a while with one of those condoms in my hand, turning it over, inventing faces and names for the guy who must have used them, imagining him on top of her, hearing her moan, seeing her come. After that I felt disgusted with myself. I had no right to that silent claim. She wasn’t mine, she couldn’t be, and yet there I was, digging through her underwear like a jealous boy, with a hard cock and a desire to kill a ghost. I slammed the drawer shut, as if that could shut the thought away too.

***

At work I couldn’t concentrate. I thought about her, and at the same time I kept that stupid anger stuck in my chest. The hours dragged. In the afternoon she texted me: don’t forget to pick me up. I answered with a curt “ok.” I knew a message that cold would annoy her, but I didn’t care. Though, deep down, I did care. I didn’t want to lose her. I just hoped that when I saw her, everything would settle.

When I got to the academy I tried to change my face. I had no right to feel jealous; it was ridiculous. Renata got into the car and I barely said her a “hi” before pulling off.

She started telling me about her day and I limited myself to listening and answering in monosyllables. It didn’t take long for her to notice the change.

—What’s wrong with you? —she asked.

—Nothing.

—Come on, tell me. Something’s up with you.

She insisted a couple more times and I kept denying it. Then she got serious, stopped pushing, and the rest of the drive we did in silence. Better this way, I told myself. I had to focus on something else, stop thinking about her that way.

When we got home she went into her room without saying a word. She knew how annoyed she was. It was for the best.

***

Night fell and Renata still hadn’t spoken to me again. It took me a while to fall asleep, going over everything, until exhaustion started winning. I was half asleep already when I heard the door open again. Soft footsteps approached my bed.

—I know you’re not asleep. Can we talk?

I barely opened my eyes. Renata sat on the edge of the mattress and her hand went up to my cheek.

—Why are you mad at me?

Just the contact of her hand made me nervous. It was a forbidden feeling I already knew too well.

—I’m not mad. Why would you think that? —I answered.

—I don’t know. In the car you seemed cold. Distant.

She kept stroking my face. I noticed she was wearing very short shorts that barely covered the start of her butt cheeks, and a little T-shirt without a bra where her nipples were clearly outlined against the fabric. Her legs, at eye level, were a real danger. I had to control myself. But she looked at me with an intensity that made everything harder.

—That’s not true. Nothing’s going on with you —I lied.

—I don’t believe you.

I couldn’t help it. I took her hand, pulled her toward me, and wrapped my arms around her.

—Sleep with me and I’ll prove it to you.

Renata smiled and got into bed.

I held her with fear. Fear that this would become an addiction I couldn’t get out of. I kissed her cheeks, her neck, slowly, letting my tongue brush her skin beneath her ear. I felt the heat of her legs against mine, breathed in her perfume, let myself be lulled by her whispers that she loved me very much. I slid one hand down her side, stroked her waist under her shirt, and she shivered slightly when I ran my thumb near her breast without quite touching it. Her ass rested against my crotch and my cock was already hardening again, unmistakably pressing against the fabric of her shorts. She felt it and didn’t move; on the contrary, she pushed back slightly, as if accepting it, as if she liked feeling how far the effect she had on me went.

I buried my face in her neck. It was a delight to feel her warmth so close. I pulled her against me and sleep finally won out. My sister was one of a kind. Sleeping with her was a pleasure no girlfriend had ever given me.

***

In the morning I woke her with soft kisses on the neck. I had her hugged from behind and had pushed her hair to one side to get to her skin better. Renata laughed softly and whispered that I was tickling her. I loved hearing her with that playful tone. I didn’t stop kissing her. I bit her earlobe, slowly licked behind it, buried my nose in her hair. She sighed deeper and that sigh went straight to my cock, which was hard again, once again pressing against the curve of her ass. Renata settled herself just a little, looking for the contact, and I had to resist the urge to yank her shorts down right there.

But it wasn’t just her neck. One of my hands rested on her stomach, and I stroked it carefully, in slow circles, each one bigger than the last. I went up a little and brushed the underside of one breast over her shirt; the nipple hardened instantly, so hard it showed through the fabric like a little pebble. I pinched the nipple slowly with two fingers, rolling it slightly, and she let out a gasp from deep in her throat. Then I moved down, following the line of her navel, to the waistband of her shorts. My hand wanted to go lower. It wanted to slip beneath the fabric, touch what was forbidden, feel her wet cunt under my fingers, put one finger in, two, see how far she would let me go.

Renata caught my hand before it got there. She took it firmly, brought it to her mouth, and kissed my knuckles one by one, looking at me. Then she turned suddenly, surprising me, and stared straight into my eyes. She smiled.

—Forgive me for what I’m about to do —she said.

And without more, she kissed me on the lips. A real kiss, with her tongue in my mouth, that lasted several seconds, slow and hot, unlike all the cheek brushes before. I felt her moan softly against my mouth, felt her teeth barely hook my lower lip before letting go. When she pulled away, her lips were swollen and her eyes were shining. She got up without taking her eyes off me. I ran my eyes over her body, that silhouette that hypnotized me, the nipples still marked against her shirt, the shorts bunched up between the cheeks of her ass from all the rolling around.

—It’s late, I have to go —she said from the doorway.

And she went to her room, leaving me alone, with my mouth still warm, my cock hard against the sheets, and my head full of thoughts I knew I shouldn’t have.