The Night My Cousin Crossed a Line With Me

There are stories one keeps for years without telling anyone. Not because they are extraordinary, nor because they change the course of anything important, but because they have that particular flavor of the forbidden: something that should not have happened and yet one remembers more vividly than many things that were allowed.

This is one of those.

Natalia was my cousin. We had grown up far apart, almost eight hours away by bus: she in a small town in the south, me in the city. We saw each other perhaps twice a year when we were kids, at the family gatherings in December or at one of the grandparents’ birthdays, and as we grew older, those visits became farther and farther apart until they almost disappeared altogether.

I had never seen her any other way. She was family. She was my cousin. And that, until that night, was all she was to me.

When I found out that my aunt would be coming with her to the city to handle her university enrollment paperwork, I took it the way I would any relative’s visit: with goodwill and no expectations. Natalia was nineteen then. I was twenty-two, living with my parents and had been working for a few months at a small company.

I went to pick them up at the bus station on a Thursday afternoon.

My aunt appeared first among the people coming out, with that hurried way of walking some people have when they arrive in the city from the countryside, as if the place’s different rhythm gives them a sense of urgency they don’t quite know what to do with. And behind her, Natalia.

She had changed.

Not dramatically. She was not unrecognizable or anything like that. But there was something different that took me a few seconds to pin down. She was still short, maybe five-foot-three if she was lucky, with the straight dark hair she’d always had and a figure that could be called curvy without actually being fat. Not the prettiest cousin in the family—my aunt had had four daughters altogether—nor the one with the most striking body. Small but perky tits, outlined against her T-shirt; wide hips, a round, firm ass that filled out her jeans in a way it hadn’t before, and thick thighs that brushed together when she walked. Pleasant face, nothing especially striking. What had changed, and what took me a while to identify, was the way she moved. More confident. More adult. Like a woman who already knew she had a pussy and that the pussy was good for something.

“You’ve grown up,” she said, laughing.

“You haven’t stayed the same either,” I replied, without quite finishing what I meant.

My aunt interrupted us with the luggage logistics, and that was it for the reunion for the moment.

***

That night, at home, the dynamic was the usual one for those family visits. My aunt and Natalia chatted with my parents in the dining room for a couple of hours, ate, caught up on news about relatives who lived far away. I was present long enough, made the required comments, and at some point slipped away to the living room couch to watch television.

It wasn’t lack of affection. It was just that, at twenty-two, spending a night listening to older people talk about illnesses and who had married whom wasn’t exactly the most tempting thing in the world.

Slightly after ten, my parents went to bed, saying they had to get up early the next day. My aunt followed almost immediately, reminding Natalia that her first appointment at the university office was at nine.

The guest-room door closed.

I was left alone in the living room, with the television low and that particular feeling of quiet nights, when you can stay awake simply because you can. With nothing urgent. No hurry of any kind.

Just over half an hour passed.

The guest-room door opened again, and Natalia came out in pajamas. Long plaid pants and a gray T-shirt two sizes too big. No bra: her stiff nipples stood out against the fabric, two dark little points the shirt did nothing to hide. Her hair a little mussed, like someone who had been lying down without actually falling asleep. She stopped when she saw me on the couch.

“I thought you’d gone to bed,” she said.

“I wasn’t sleepy. You either?”

She shook her head. Glanced at the TV for a second, then at me. And without being invited, she came over and sat at the other end of the couch, tucking her legs beneath her body.

“Can I stay a while?”

“Of course.”

I lowered the volume on the television. The living room fell into that soft silence houses have at night, with only the distant noise of the street and the faint light coming from the hallway.

We started talking. About light things at first: how the town compared with the city, what course she had chosen and why, whether she already knew anyone at the faculty, what life was like in a small town when you wanted more than that. The conversation flowed with the ease of two people who share something in common but don’t see each other often enough to have much history. No tension. No awkward silences to fill.

It was pleasant, genuinely so.

At some point, without me being able to say exactly how we got there, we moved onto the subject of relationships.

“So, do you have a girlfriend?” she asked.

“No, not right now.”

“I don’t believe you.”

I looked at her. She was smiling in a way that was not entirely casual.

“Why wouldn’t you believe me?”

“I don’t know. You seem like the kind who always has someone waiting around.”

“If I had a girlfriend, I’d be with her right now instead of here talking to you at midnight.”

“Oh.” —She paused briefly— “Then it’s like I’m your girlfriend tonight.”

She said it in the tone of someone making a joke, but there was something behind it that was not just that. I looked at her for a moment before answering.

“Something like that,” I said. “Too bad we’re cousins.”

She let out a short, almost forced laugh, and lowered her eyes to her hands.

There was a silence. Not exactly awkward, but charged. The kind that has its own weight, the kind the two of you feel but neither decides to name. I let it sit, because cutting off that kind of silence means losing something that doesn’t always come back.

It was her who spoke.

“But if we weren’t cousins it still wouldn’t mean anything, right? I mean, I’d have to actually like you.”

There it was.

It wasn’t a casual question or an overextended joke. It was the kind of direct question, only barely disguised, that someone asks when they already know the answer they want and just need somebody to say it out loud.

I could have stopped it there. Changed the subject, made a comment to cool things down, gotten up on some pretext. That would have been sensible. My parents were sleeping fifteen meters away. So was my aunt. We were cousins. There were a hundred reasons to leave the conversation where it was.

But night has that strange quality at certain moments, as if the normal rules are suspended, and curiosity got the better of my judgment. And also, to be honest, I’d had a hard-on for the last ten minutes, outlined in my pajama pants, and she wasn’t looking anywhere else when she dropped her eyes.

“You’re nice,” I said. “And you’re not ugly. Anybody would like you.”

It wasn’t entirely true, because honestly Natalia wasn’t my type under normal circumstances. But it wasn’t a complete lie either. And at that point exactness mattered less than where all this was headed.

She didn’t answer right away. She looked down at the floor, and when she raised her eyes again, there was something different in them: more direct, more resolved, as if she had decided something while staring at the tiles.

“You seem very cute to me since I got here,” she said. “Don’t think I’m crazy. I just think it, and I’d rather say it.”

I glanced over my shoulder toward the hallway. Everything was still. Doors closed.

I scooted a little closer on the couch.

“Can I kiss you?” I asked.

She didn’t answer with words. She nodded slightly, eyes fixed somewhere between the floor and my face.

I lifted her chin with two fingers and kissed her. It was brief, more a touch of lips than a fully developed kiss, because neither of us wanted to risk making more noise. When we pulled apart, she turned her head to the side, as if she didn’t know what to do with her face at that moment.

“Was that okay?” I asked softly.

“Yes,” she said without looking at me yet. “It was very good.”

We stayed quiet for a moment. I could hear her breathing a little fast, and mine too. I reached out and laid my hand on her knee, over the pajama fabric. She didn’t move. I went up slowly, millimeter by millimeter, and when I got halfway up her thigh she leaned into me, dropping her weight against my shoulder.

“Come here,” I whispered in her ear.

I took her by the waist and sat her on top of me, one leg on each side. The gray shirt rode up to her navel, and I could feel perfectly the heat of her pussy pressed against my cock, with just the two layers of fabric between us and nothing else. She sat down heavily, without hesitation, and when I put my hands on her ass and pulled her against me, she let out a short sigh that barely escaped.

“Shh,” I whispered.

“I know,” she said, and kissed me.

This kiss was completely different from the first. She opened her mouth immediately, slipped her tongue into mine, and moved slowly on top of me, rubbing her cunt against the bulge in my pants. I grabbed her ass with both hands and helped her move, pressing her against me with every pass. A tiny moan slipped out inside my mouth.

I lifted her shirt and grabbed her tits. They were small but her nipples were hard as pebbles, stiff between my fingers. I nibbled at her neck while squeezing one, then the other, and she threw her head back with her eyes closed.

“We can’t make noise,” she said, almost breathless.

“We won’t make noise.”

I lowered my head and sucked one nipple. Another moan escaped her, swallowed in her throat, and she dug her nails into my shoulders. I ran my tongue around it, bit it slowly, and she moved her hips against my cock faster and faster, grinding with an urgency she probably wasn’t fully aware of.

I slipped a hand under the pajama pants and found she wasn’t wearing panties. She was soaked. I ran two fingers through the slit of her pussy, slowly, from bottom to top, and she shuddered all over.

“You’re wet,” I told her in her ear.

“Shut up.”

I sank two fingers into her at once. She clung to me hard to keep from crying out, and I could feel her pussy tightening around my fingers, hot, dripping. I started sliding them in and out slowly, finding her clit with my thumb, and she began trembling on top of me almost immediately.

“Wait, wait,” she whispered. “Not here.”

She looked toward the hallway. So did I. Everything was still quiet.

“The bathroom,” she said.

She got down carefully and pulled me by the hand. I followed her like a hypnotized idiot, my cock straining inside my pants. We crossed the hallway on tiptoe, passed in front of my parents’ closed bedroom door, in front of the guest room where my aunt was sleeping, and went into the small bathroom. I locked the door. I turned on only the mirror light.

We didn’t talk. She turned to face the sink, yanked her pajama pants down to her knees, and looked at me through the mirror. She had a round, pale ass, and her legs were pressed together, leaving a strip of dark, shiny pussy visible between her thighs.

“Quick,” she said.

I pulled my pants down. My cock sprang out, hard, and I grabbed it to aim. I pulled her butt cheeks apart with my other hand and shoved my whole dick inside her in one thrust. She let out a short, sharp moan that she swallowed by biting her hand.

She was so wet I went in all the way without resistance. And she was so tight I nearly came right then and there. I stayed still for a few seconds, holding her hips, breathing through my nose.

“Move,” she whispered, looking at me through the mirror. “Fuck me.”

And I moved. I started driving into her with short, firm thrusts, without noise, pressing her against the sink. Her ass bounced against my pelvis with each shove, a slap of skin against skin that in the silence of the house sounded enormous. I slowed down and tried not to make noise, but she pushed back, looking for me, trying to take me deeper.

“Harder,” she murmured.

I grabbed the hair at the nape of her neck and pulled her head back so I could see her face in the mirror. Her mouth was open, her eyes half-closed, her tits hanging free under the raised shirt. The image of her being my cousin, of me fucking my cousin with her mother asleep ten meters away, kept flashing through me, and instead of softening my cock it made it even harder.

“Your cock tastes good,” she said through clenched teeth. “Good, cousin.”

“Shut up.”

“Fuck me harder.”

I pushed her face against the mirror, grabbed her hips with both hands and started driving into her hard, thrust after thrust, not caring about anything anymore. She bit her forearm to keep from crying out. I could see the vein in her neck standing out, her face red, her breath fogging the mirror glass.

I slid one hand around to the front and found her clit. I rubbed it with my middle finger while I kept fucking her, and within seconds she started shaking all over. She dug one hand into my arm and squeezed her pussy around my cock with a force that nearly left me breathless.

“Oh God, oh God,” she said softly, in a thin voice, and came over my cock in a series of short convulsions.

I could feel her getting even wetter, feel the semen I still hadn’t let go begin to rise. I grabbed her hair harder.

“I’m going to come,” I told her in her ear.

“Not inside,” she gasped. “Not inside.”

I pulled out at the last second; she turned me to face her on her knees and shoved my cock into her mouth before I could say anything. I felt the heat of her tongue, her hand closing around the base, and I came in her mouth with two, three, four long spurts that she swallowed all of, eyes lifted to mine, not letting go of my cock until I stopped trembling.

I stayed leaning against the bathroom wall, legs weak, trying to catch my breath without making noise.

She wiped her mouth with the back of her hand and stood up. She pulled her pajama pants back on without saying anything, lowered her shirt, glanced at herself in the mirror for a second to fix her hair. Her face was shining with sweat. I pulled my pants up too.

She looked at me.

“That was really good,” she said, smiling.

I smiled back without really knowing what to say.

She opened the door slowly, listened for a few seconds, and slipped out into the hallway. I waited a long minute before leaving. I went back to the couch, sat down with my legs apart, and stared at the TV without seeing it, still tasting her in my mouth and smelling pussy on my fingers.

A while later, when I had more or less pulled myself together, I heard the guest-room door open again.

Natalia poked her head out. She had changed her shirt.

“You still not going to bed?” she whispered.

“I was just about to.”

“Come here for a second.”

I looked down the hallway. Absolute silence. I stood up and walked to the bedroom door. She opened it just enough to let me in and closed it behind me without a sound.

The guest room was small. A three-quarter bed against the wall, a little table, a wardrobe. Nothing else. It was dark, with only the hallway light slipping in through the gap beneath the door.

“And your mom?” I whispered.

“She’s in the other guest room, not here. She sleeps like a log. She even took a pill.”

I came closer. She climbed onto the bed and got on all fours, back to me, ass raised. She pulled the pajama pants down again, to her knees, without turning around.

“Again,” she said. “Quiet.”

I climbed onto the bed behind her. I grabbed her ass with both hands, spread her cheeks, and found her pussy still dripping, with my cum from before trickling down the inside of her thigh. I ran my tongue from her clit all the way to her asshole in one long stroke, and felt her thighs tremble. I buried my tongue in her cunt, sucking at the mixed taste of both of us, and she pressed her face into the pillow to muffle the moan.

I ate her out for a long while, until I felt her starting to move against my face, looking for more. I drove my tongue deep inside her, then went up to suck her clit with my lips, while I slid two fingers into her pussy and searched inside her with my fingertips. Little muffled moans escaped against the pillow, small whimpers she couldn’t quite swallow.

When I couldn’t take it anymore either, I got up behind her, pulled my cock back out of my pants and shoved it into her in one thrust. I was rock hard again, as if I had never come at all. She received me with a shiver and by pushing her ass back.

“Yes,” she whispered. “Like that.”

I grabbed her hips and started fucking her hard, with longer thrusts now that we had the bed to absorb the noise. The mattress creaked only slightly. Her face was buried in the pillow, one hand gripping the edge, and her round ass shook with every blow from my pelvis.

I leaned forward, grabbed her hair with one hand, and found her tits with the other under the shirt. I squeezed her stiff nipples between my fingers while I kept fucking her. She pushed back, clenching her pussy around my cock with each thrust.

“Cousin,” I said in her ear. “Dirty little cousin.”

“Yes,” she gasped. “Your dirty little cousin.”

I put a hand over her mouth because she was starting to get louder without realizing it. I fucked her like that, my palm covering her moans, feeling them vibrate against my hand every time I buried myself to the hilt.

I pulled her down from all fours and turned her onto her back. I lifted her legs, rested them on my shoulders, and went back in. In this position I could see her face while I drove into her: eyes closed, mouth half-open, hair spread across the pillow. Her shirt bunched up, her tits shaking with every thrust.

I squeezed one breast and leaned down to suck on a nipple. She grabbed the back of my neck and pulled me into her mouth. We kissed hungrily, tongue to tongue, while I kept fucking her faster and faster.

“I’m going to come again,” she said between kisses.

“Come.”

I lowered my hand to her clit and rubbed it with my finger, my cock inside her moving slowly so I wouldn’t lose the rhythm. A few seconds later she started trembling, grabbed the pillow with both hands, and shoved it into her mouth to choke off the cry. I felt her pussy clench in pulses around my cock, long ones, one after another.

When it passed, I turned her onto her back again, put her on all fours and pressed her head down into the pillow. I drove my cock all the way in, and started fucking her with the last hard thrusts, gripping her hips, not caring anymore about the sound of the bed.

“On the face,” I gasped. “This time on the face.”

“Mm-hm.”

I pulled out just in time, she turned, dropped to her knees at the foot of the bed, and opened her mouth for me. I shoved it in, two, three pumps with my hand at the base, and came again, on her tongue, on her lips, a little on her cheek and a little on her chin. She closed her eyes and stayed there, mouth open, taking all of it.

When I finished, she wiped her cheek with her finger, brought the cum to her mouth, and swallowed it while looking at me.

“Go,” she whispered. “Before they wake up.”

I gave her a short kiss on the mouth, salty with my own semen, and left the room in silence. I closed the door softly behind me and went back to the couch. I lay down there, still breathing hard, and fell asleep without even noticing.

***

The next two days were spent on errands and with family always around. My aunt and Natalia left early, came back in the afternoon, and there was always someone in the kitchen or the dining room. There was no way to repeat the nighttime conversation, and neither of us actively looked for it. Natalia was another person in front of the others: calm, a little quiet, without the boldness she’d had in the dark of the living room. As if that moment had existed only in that specific context and had no possible continuation outside it.

Although one afternoon, in the kitchen, when she passed behind me to grab a glass, she ran her hand over the bulge in my pants. Quick. One second. Nobody saw anything. She kept walking as if she hadn’t done a thing, and I stayed hard against the edge of the counter for the next twenty minutes.

Before they left, we exchanged numbers.

We texted for a few weeks. Short messages at first, then longer, then short again. We talked at one point about the possibility of seeing each other if she came to study in the city, about what might happen if we were truly alone, without shared walls with the rest of the family. She used that cautious language people use when they want to say something without quite daring to, and I played along. Not because I was in love or because she attracted me in a way that kept me up at night, but because there was something in that dynamic—the taboo, the distance, knowing we were playing with something forbidden, the memory of my cock going into her in the bathroom with her mother sleeping ten meters away—that was hard to let go of.

But life has a way of resolving certain things by inertia. She started classes, I threw myself into work, and the messages spaced out until one day there simply wasn’t a next one.

***

I know that, compared with other stories, fucking a cousin one night might seem like a small thing. And maybe it is, objectively. But for me it had a different effect: it made me understand that certain things one thinks exist only in the imagination—those conversations you have at sixteen where someone mentions a cousin with a knowing smile—are actually much closer to ordinary life than they seem. All it takes is for the circumstances to line up, for the night to be long, for there to be enough silence and two people willing to let something happen.

It opened my eyes to things I hadn’t allowed myself to consider before.

Years later, I visited my uncles and aunts again. Natalia no longer lived in the house; she had moved near the faculty and only showed up now and then. But her younger sister, Sofía, was still there.

With Sofía, it was a completely different story.

I’ll tell that one another time.