The Morning My Sister-in-Law Came to Clean the House

That Thursday I didn’t have any meetings out of the office, so I decided to stay home and get ahead on work from the study. Mariela, my wife, had left early for the office and wouldn’t be back until the afternoon. The apartment was silent, with that strange stillness that weekday mornings have, and I had poured myself a coffee to finish a heavy letter I owed the clients.

I had been wrestling with the second paragraph for half an hour when I heard the key turn in the lock. I went rigid for a second, my heart in my throat, until the door opened and a sing-song voice filled the hall.

—Hi! Is anyone there?

—Who’s there? —I blurted out, jumping to my feet.

—Oh, you scared me, brother-in-law! —It was Daniela, Mariela’s older sister—. I didn’t expect you to be home. Your wife asked me to come by and clean this morning; she said there wouldn’t be anyone here.

—Yeah, in the end one of my visits got canceled, so I came here to work —I explained, still with my pulse racing.

—Well then, handsome, let me put on something more comfortable and I won’t bother you —she said, already taking off her jacket.

—Don’t worry, if you need anything, I’m in the study.

Daniela gave me a smile and headed for the bedroom. I watched her more than I should have. She had that figure I had always found hard to ignore at family lunches: tall, long-legged, with a red miniskirt to match red heels that clicked against the parquet. When she turned her head and realized I was looking, she didn’t look embarrassed. On the contrary, her lips curved and she smiled again before closing the door.

Focus, Andrés. She’s your wife’s sister.

I sat back down at the computer and tried to pick up the letter again. Useless. The words slipped away from me. A few minutes later I heard her come out of the room and start fussing with a feather duster on the entry table.

I peeked out without thinking, on the pretext of getting more coffee, and I almost stopped breathing. She had put on one of Mariela’s summer nightgowns, a thin garment that barely covered her past the thighs and that, with the light coming in through the picture window, let everything underneath be guessed at. Daniela was two years older than my wife, around thirty, and she took care of herself: she had the body of someone who goes to the gym without obsessing over it. Married, like me. No children, like me.

—Coffee? —I asked, with the firmest voice I could fake.

—No, thanks, you carry on with your thing —she replied without stopping the duster, arching her back a little.

I went back to the study defeated. It was impossible to write knowing that woman was roaming around my house half naked. I reread the same sentence three times and understood none of it. I could hear her humming in the hallway, opening cupboards, moving chairs, and every noise forced me to imagine her in a different position. At Sunday lunches there had always been something between us, one joke too many, a look that lasted a second too long, but we both knew where the line was. That morning, for the first time, the line seemed to be made of smoke.

I tried to distract myself by answering overdue emails, but the cursor blinked on the screen without me writing anything. Another long, endless half hour passed until her voice rescued me from the bedroom.

—Andrés! Can you give me a hand turning the mattress over?

I stood up so quickly I almost knocked the chair over. Of course I wanted to. I would have done anything just to have her close.

—I’m coming right now.

I found her bent over the bed, folded at the waist, holding one corner of the mattress while she waited. From the doorway, the nightgown had ridden up so far it left her entire ass on display, round, firm, and between her legs I could make out her shaved cunt, already shining with moisture. She wasn’t wearing anything underneath. I felt my cock harden all at once, pushing against the fabric of my pants until it was unmistakably outlined.

Daniela turned her head to look at me and her eyes stayed fixed for a couple of seconds on the bulge in my pants. She didn’t look away right away. When she did, she was smiling.

—Are you okay? Is something wrong? —she asked with an innocence neither of us believed.

—No, no, everything’s fine —I lied—. Stand to one side and we’ll both pull this way.

—Okay. Get beside me.

We grabbed the mattress at the same time. I was so focused on her that I barely put any strength into it, and all the weight came down on us. We both fell onto the bed, face to face, her body against mine, separated by barely the fabric of that nightgown.

—Look what you caused! —she said, laughing, making no effort at all to get up.

—You wear those little outfits, sis-in-law... —I murmured—. Hard to concentrate like that.

—Do you like what you see, Andrés? —She lowered her voice until it became a whisper.

I didn’t know what to answer. She was a hand’s breadth away, her breathing mixing with mine, and every second of silence was a confession.

—You’re beautiful —I said at last—. Ever since you walked through that door I haven’t been able to think straight. I can’t stop thinking about you.

Daniela looked at me hard, as if making a decision.

—Well, I’m going to confess something to you, but this doesn’t leave this room. Neither your wife nor my husband can find out. Deal?

—You have my word.

—Ever since I saw you alone in the house... —She brought her lips to my ear and licked my earlobe before going on—. I can’t get it out of my head. I’m soaking wet just imagining how you’re going to fuck me.

***

There were no more questions. I lunged at that mouth and kissed her with all the hunger I’d been holding back since the kitchen, since the feather duster, since years ago, really. She answered with the same urgency, biting my lip, pushing her tongue all the way in, sliding a hand inside my pants until she grabbed my cock raw and squeezed it greedily.

—Fuck, you’re rock hard —she gasped against my mouth, jerking me slowly with her closed fist—. I’d been dying to taste you...

I undid the buttons of the nightgown one by one, unhurried, until her tits were bare. They were round and firm, with the nipples already hard and pink pointing at me. I lowered my head down her neck, over her collarbone, and heard her moan when I took one nipple fully into my mouth and started sucking hungrily, tugging it with my teeth, circling it with my tongue. I grabbed the other one with my hand and pinched it in the same rhythm.

—Like that, you bastard, like that... —She dug her fingers into my hair—. Bite them. You’re the one who’s got me this turned on. Don’t stop.

Her voice rose and fell, broken up, while she pushed my head against her tits and begged me for more with dirtier and dirtier words. I stroked her thighs, slowly worked my way up, and felt her whole body shiver when I reached her cunt and spread her lips with two fingers. She was so wet they slipped on me.

—You’re soaked, fuck... —I whispered, starting to rub her clit with my thumb while I slipped two fingers inside her.

—Oh, yes! —she shouted, arching her back against the bed—. Put them all the way in, don’t be stingy.

I sank them in all the way and felt her cunt close around me, hot and sticky. I pumped her with my fingers while I licked her nipples, and she moved her hips against my hand, chasing pleasure without the slightest shame. I lowered my head down her stomach, spread her legs wide, and buried my tongue in her cunt without warning.

—Holy shit! —She pressed my head against her with both hands—. Eat me out, brother-in-law, eat me out completely.

I ran my whole tongue from bottom to top, tasting her, and stopped at her clit to suck it with my lips as if it were candy. I slipped my tongue inside her, pulled it out, went back to the clit, switching back and forth nonstop while she writhed and coated my face with her juices. She tasted strong, sweet and tangy at the same time, and I couldn’t stop eating her out.

—I’m going to come in your mouth if you keep going... —she panted—. Stop, stop, I need you inside me. Now. Put it in.

I sat up and fumbled with my pants, unbuttoning them with clumsy hands. My cock sprang out hard, the head already wet, and she licked her lips at the sight of it.

—You’ve got a hell of a cock, fuck... —She got onto all fours on the mattress, offering me her ass—. My husband doesn’t even have half of it. Tear me open, come on, I’ve been wanting to try it for years.

I grabbed her by the hips and rubbed myself up and down her cunt lips, wetting the tip well with her moisture. She pushed her ass back herself, impatient, and swallowed me in one thrust all the way to the balls. We both moaned at once.

—God! —she moaned, clutching the sheets—. You’re huge, fuck... my husband doesn’t even come close. I’m not used to this. But don’t stop, please, fuck me hard.

I held onto her hips and started pounding into her, slowly at first, letting her get used to the size, pulling out almost all the way before driving into her again. Her cunt made wet sounds from how soaked she was, and her ass bounced against my belly with every thrust. I slapped her ass and she let out a cry.

—Again, give it to me again —she begged—. Treat me like a slut.

I crossed the other cheek with my open palm and left a red mark. I sped up, fucking her harder and harder, with the sound of my balls smacking her clit on every shove. I grabbed her hair with one hand and pulled back, arching her neck, and she looked at me over her shoulder with half-lidded eyes and an open mouth.

—Like that, you motherfucker, that’s how I like it —she moaned—. Put it all in, all the way, don’t spare me.

The room filled with the noise of the thrusts, of flesh slamming against flesh, of her ragged breathing and words I know I’d never repeat in front of anyone. I slid a hand around to the front and rubbed her clit while I kept pumping into her from behind. After a few seconds I felt her whole body tighten.

—I’m coming, I’m coming, I’m co... —She didn’t finish the sentence. Her cunt clenched around my cock in a long spasm and she collapsed onto her elbows, trembling, her face smashed into the pillow.

—That was a gorgeous orgasm, fuck —I told her, not stopping my thrusts inside her—. I’m not done with you yet.

—You have no idea how much I needed this —she panted, still trembling—. Pull out, pull out for a second. Come here, now it’s my turn.

She pulled my cock out of her cunt, turned around and shoved me back onto the mattress. Before I could react, she bent down and took me all the way into her mouth, swallowing me until I felt her throat closing around the tip. She took me out, licked me from top to bottom while looking me in the eyes, sucked my balls one by one, and swallowed me again.

—It tastes like my cunt —she said, licking her lips—. I love it.

She sucked me off for a good while, both hands circling the base while her fist worked up and down in time with her mouth. When she felt I was close, she pulled away suddenly and sat astride me. She grabbed my cock, positioned it at the entrance to her cunt, and lowered herself slowly, eyes closed and mouth half open, until she swallowed it again to the hilt.

—Fuck, what a fill... —she moaned, starting to move in circles with her hips.

She rode me almost up to the tip and then dropped back down hard, riding me with force, her tits bouncing in front of my face. I grabbed them both with my hands, squeezed them, took a nipple into my mouth and sucked on it without stopping my upward thrusts from below.

—My sister is lucky —she murmured between breaths—. If she knew her sister-in-law was fucking her husband in her bed... with the cock she got so lucky to land...

—You’re a filthy slut, Daniela —I told her, and it was true—. Nobody has ever made me this hard.

I held one hip with one hand, setting the pace, and with the other I ran over her back, her ass, everything I could reach. I slid a finger between her cheeks and brushed her asshole. She shivered all over and sped up her thrusts even more.

—Yeah, there too, touch me there —she gasped, throwing her head back—. I’m being such a pig this morning.

I pushed my finger into her ass up to the knuckle, feeling her tighten around it while her cunt kept squeezing my cock. She rode me wild, her hair falling over her shoulders, and every time she opened her eyes she speared me with a look that was pure shamelessness.

—Andrés... —Her voice changed, got faster, higher—. I’m going to come again. I can’t hold it.

—Me too... wait, let me pull out and come outside...

—No —she cut in, pressing harder against me and impaling herself all the way—. Stay. Come inside. Fill my cunt with cum. Nobody has to find out.

I couldn’t think clearly. She was moving faster and faster, digging her nails into my chest, repeating my name and filthy talk in equal parts, and I let myself be carried along without resisting. I felt her whole body tense an instant before breaking apart in a long tremor, her cunt milking my cock in spasms, and that was the push I needed to empty myself too inside her, burst after burst, holding her hips tight against me.

—Oh yes, like that, give it all to me, don’t hold anything back —she moaned, feeling every spurt inside—. Fuck, what a feeling, fuck, what a feeling.

We stayed still, she collapsed on my chest, both of us trying to catch the breath that had escaped us. My cock was still inside her, slowly softening, and I could feel my own load running down her thighs and staining my balls. I stroked her back while her breathing gradually returned to normal.

—Thank you —she said at last, lifting her head with a tired smile—. And don’t worry. Nothing leaves this room. Neither my sister nor my husband will know.

She sat up slowly and I felt my cock slip out with a wet sound. A thick strand of semen slid down the inside of her thigh. She scooped it up with two fingers, brought them to her mouth, and sucked them while looking at me.

—Tasty —she said, licking her lips—. We’ll have to do it again.

She gave me a slow kiss on the lips and got up to pick her nightgown off the floor.

—I loved it —I admitted—. I hope this doesn’t end with just one morning.

Daniela looked at me over her shoulder, bit her lip, and winked before disappearing toward the bathroom. She didn’t need to say anything else. When she left half an hour later, with the apartment spotless and her jacket on as if nothing had happened, I knew that Thursday would not be the last.