The Night We Agreed to Swap

I met Marina on a walk beside a dry creek bed, the kind where you hop from stone to stone so you don't twist your ankle. She slipped, cried out, and I managed to catch her around the waist before she hit the ground. Her body collided with mine, our faces ended up far too close, and the kiss happened on its own—clumsy at first, long afterward. Sometimes I think we're still inside that embrace.

We moved in together after a while and started inventing little couple's habits. The strangest was the glass: when we had dinner alone, we put only one on the table and drank from it together. We never discussed it; it simply happened the first day and stayed that way. For years, it seemed to me like a sign that what we had was something special.

Then routine arrived, as it does for almost every couple. It wasn't a tragedy, just a slow erosion. Some nights I was tired, other nights she wasn't in the mood, and before we knew it, we were having sex less often than either of us cared to admit.

To get ourselves worked up again, we started talking about fantasies. At first they were silly things, bedroom games, improvised stories to turn us on and end up fucking. Marina quickly realized that if she painted me a scene involving other people, I got hard within minutes.

One night she told me that, years earlier, she'd showered with a friend of hers, Nora. According to her, they'd soaped each other up, touched each other's tits while laughing, and not much else. I asked her for details like a desperate man. Which hand had gone down first, who had looked at whom, whether they'd rubbed their pussies together, whether either of them had moaned. We ended up fucking with her riding on top of me, describing that half-real, half-invented shower in my ear.

When she saw the effect it had on me, she went further. Another night she expanded the story and put four people in the bathtub: her, Nora, and two male friends of Nora's. She told me they were sitting in a line, one between the other's legs, supposedly taking turns soaping one another. I knew she was making it up as she went along, but I didn't care. It turned me on to hear her say that with one hand she washed the dick of the man in front while the one behind opened her legs and pushed his foam-covered fingers inside her.

“And did you like it?” I asked her that time, my cock already hard beneath the sheet.

“If I imagine it, yes,” she replied. “If the one behind knew how to touch me properly, of course I'd like it.”

“And would you jerk him off?”

“If he got hard because of me, I wouldn't leave him that way.”

That was enough. I pulled off her underwear, spread her thighs, and started rubbing her clitoris while she kept constructing the scene. She told me one man was pawing her tits, the other was pushing two fingers inside her, and Nora was watching, taking charge, laughing, urging them to keep going. I made her talk, and in return I fucked her harder. The best sex we had in those days was born that way, from useful lies.

There was also a real woman inside my fantasies: Lidia, a friend from our group. She wasn't the prettiest, but she had a body you noticed even when she was dressed and a way of looking at you that seemed like a permanent invitation. Once, half drunk, I ended up talking with her on a terrace.

“I've got a question,” I said. “When you meet someone, do you ever imagine what it would be like to sleep with that person?”

She laughed before answering.

“Yes. Not with everyone, but it happens.”

“Did it happen with me too?”

She raised her glass to her mouth, still smiling.

“Once or twice, yes.”

Nothing happened that night, but her answer stayed inside me like an ember. I wasn't seriously trying to hit on her; I just wanted to confirm that desire went in every direction. Even so, from then on I imagined her naked more than once.

The game went up a level when we started using specific names. They were no longer blurry strangers in our fantasies, but real people. Friends. Close friends.

“Have you ever imagined yourself with someone I know?” I asked Marina one night.

She hesitated so long that I thought she wasn't going to say anything. But eventually she let it out.

“Darío.”

Darío had been my friend before he became a friend to both of us. Tall, self-assured, one of those men who always seemed comfortable taking up space. I felt a strange pang when I heard his name, but the excitement was stronger.

“And what did you imagine?”

“That he touched me,” she said almost in a whisper. “That he spread my legs and made me come with his hand before putting it inside me.”

I slid my hand between her thighs.

“Here?”

“Yes.”

“And like this?”

“Yes... like that.”

That night she came twice imagining Darío while I masturbated her and then penetrated her, asking whether he would do it more slowly, harder, deeper. When we finished, panting and clinging to each other, I voiced the idea that had been circling in my head for some time.

“If imagining it gets us this worked up, someday we'll have to do it for real.”

She shook her head.

“I like fantasizing. Taking it into reality, I don't know.”

But the seed had been planted.

***

We had a group of friends who often got together at Darío's big house. He was the perfect host: food, drinks, music, and an irritating talent for making everything seem spontaneous. We got to know everyone better there, especially Bruno and his wife, Elisa.

Bruno talked about sex with a casualness that sometimes seemed like bragging and sometimes like confession. One night, the three of us stayed behind drinking in the kitchen while everyone else was on the terrace. I don't know who brought it up, but we ended up talking about fantasies involving other people.

“Marina and I sometimes fantasize about swapping partners,” I said, pretending it was just a lighthearted idea.

“Elisa and I have played around with that too,” Bruno replied without embarrassment. “Never completely, but there's definitely a thrill to it. And if something ever gets arranged, I'm not sitting it out.”

Darío burst out laughing.

“If you really do it, I'm first in line.”

“And Elisa?” I asked.

“I know Elisa,” Bruno said. “It would scare her at first, but she'd be curious too. Very curious.”

The alcohol was doing its job. I got carried away.

“We could convince them. One weekend. Each of us with the other man's woman.”

Darío looked straight at me, making no attempt to hide his lack of prudence.

“I wouldn't have a problem with Marina.”

I felt the exact impact of those words. The thrill and the jealousy coming in together, all mixed up. Even so, I smiled as if nothing had happened.

“Well, I wouldn't have a problem with Elisa either.”

We clasped hands as a joke, like a pair of idiots signing a pact. At that moment we were all hard from the idea. I was the hardest of all.

That same night, in bed, I told Marina about it as though it had been a half-joking conversation. She listened in silence, resting against my chest.

“And who would I get?” she asked at last.

“You and Darío, I suppose.”

She smiled in a way I still remember far too well.

“I'm not surprised you paired me with him.”

I squeezed one of her tits through her shirt.

“Because you want him to touch you, right?”

She laughed, moved my hand away, and then guided it herself between her legs.

“Don't keep going, or we're going to end up fucking.”

We ended up fucking, of course. I pushed my fingers inside her while asking whether she preferred Darío's hand or mine. She answered me between moans, spreading her legs wider, pressing her pussy against my palm.

“Yours right now,” she said. “His in the fantasy.”

I pulled down her panties, turned her onto her back, and knelt between her thighs. Her pussy was wet, open, throbbing. I ran my tongue over her clitoris slowly, savoring the way it softened and then tightened beneath my mouth. Marina grabbed my hair and began pushing her pelvis upward, asking for more without saying so.

“Don't tease me,” she snapped through her teeth. “Lick me properly.”

I pressed my tongue more firmly, alternating between her clitoris and the entrance to her pussy. Then I pushed two fingers inside her, curling them while I kept sucking her. She moaned louder and louder, and when she came she clamped her thighs against my face with desperate force. I pulled away only to unbutton my pants.

“I want you inside me now.”

I lifted one of her legs over my shoulder and penetrated her with a deep, hard, clean thrust. She let out a hoarse moan and arched her whole body. I began slowly, making her feel every entry, every withdrawal, the full friction of my cock inside her, and then I sped up until the mattress began banging against the wall.

“So this is how you'd imagine yourself with him, huh?” I said, breathing against her mouth.

“Stop talking and fuck me.”

I obeyed. I fucked her hard, gripping her hips, watching her tits shake with every thrust. I lowered one hand to her clitoris and masturbated her in time with my strokes. She came again, squeezing me inside, and I came shortly afterward, pulling out just in time to spill over her belly. Marina looked at the semen spread across her skin and smiled with a mixture of embarrassment and excitement that got me hard again.

Afterward, once we were lying in each other's arms, I confessed the truth: the conversation with them had been real, not just an improvised fantasy.

“You're an asshole,” she said, turning her back to me.

I hugged her from behind, pressing myself against her ass.

“I love you.”

She said nothing else, but she didn't pull away either.

***

We kept talking about it for weeks. Sometimes as a joke, sometimes seriously, sometimes while masturbating each other in bed. Until one afternoon Marina told me she'd discussed it with Elisa and that, if we were going to do it, they would organize it properly.

The plan was set for a Saturday. Darío would come to my house with Marina. I would go to Bruno and Elisa's. Bruno would spend the night with another woman from the group whom they had also arranged to meet. Everything was divided up, neat on paper, as though desire obeyed household rules.

When she told me, the first thing I felt wasn't excitement. It was fear. Real fear. Until then, everything had been a useful fantasy for fucking better. Now another man was going to be alone with my wife in our house. In our bed. Touching her for real, putting his cock inside her for real, hearing her moan without me being there.

“Are you sure you want to go through with this?” she asked when she saw my face.

“I don't know,” I admitted. “I wanted to until it stopped being imaginary.”

Marina stroked my bulge through my pants, as if she knew the shortcut through any argument.

“It'll only be sex. You're going to fuck Elisa too. And then we'll come home together.”

I nodded, but Elisa didn't appear in my head. All I could see was Darío undressing Marina.

The day arrived too quickly. That morning I watched Marina change the sheets and felt a ridiculous knot in my stomach.

“Why are you putting on clean sheets?” I asked.

“Because I'm not putting anyone in an unmade bed.”

“Anyone? You're putting him in it.”

She looked at me patiently, although she was already fed up with my last-minute panic.

“You wanted this more than anyone.”

She was right, and that pissed me off even more.

When it was time to leave, I tried to back out.

“I can't do it.”

She grabbed my face and gave me a brief, firm kiss.

“Yes, you can. And if you don't fuck Elisa, at least don't ruin my night too.”

She opened the door and practically shoved me outside.

“Go. Darío will be here any minute.”

I left the house with an absurd mixture of jealousy, anger, and shame.

***

Elisa opened the door with an unmistakably annoyed expression. She was wearing a loose blouse and shorts, nothing provocative, but I noticed her legs immediately anyway.

“Marina called me,” she said as soon as I stepped inside. “She told me you were having a panic attack.”

“I'm sorry.”

“Well, now there are two people dealing with consequences caused by someone else. Bruno left half an hour ago, and I don't intend to spend the night feeling stood up because of your nerves. Come in.”

I did as she said. She gave me a beer and we started preparing something for dinner. The situation was strange, but simply being alone in her house already charged the air. I had desired her silently before; now she was there, cutting bread beside me, her neck exposed and an obvious tension beneath her apparent calm.

We ate, had a drink, and watched television for a while without paying much attention. Then she showed me to the guest room. I sat on the bed and stared at my phone like an idiot, imagining Marina with Darío at that very moment. I thought of him pulling off her underwear, of her letting him do it, of my bed creaking. The jealousy warmed me more than tenderness did, and that forced me to acknowledge an uncomfortable truth: part of me had always wanted this.

I texted Marina a short message saying I was going to stop behaving like an idiot. Then I got up and went to Elisa's bedroom. I knocked.

“Yes?”

“It's me. Can I come in?”

“Come in.”

She was in bed, the light dim, the sheet covering her body to the waist. Her bare shoulders made it obvious she wasn't wearing a bra. She looked at me without smiling.

“What exactly do you want?”

I swallowed.

“To fuck you. If you still want that.”

“I do,” she said, “but don't waste any more of my time with doubts.”

I undressed down to my boxers and climbed in beside her. A small distance separated us, warm and charged. I asked her for a hug, almost like a nervous teenager. She gave a low laugh.

“Come here.”

When my chest touched her skin, my body reacted on its own. I got rock-hard instantly. Elisa lowered her hand, squeezed me through my boxers, and whispered near my mouth:

“Well, it turns out you did want this after all.”

I kissed her. Slowly at first, then hungrily. She answered by opening my lips with her tongue, gripping the back of my neck, pressing her whole body against mine. I slid my hand up her side and found a full breast, soft, the nipple already hard beneath my fingers. I rubbed it, squeezed it, pinched it a little.

“That's good,” she murmured. “Don't be gentle.”

I pulled down her panties. They were a thin thong, damp at the crotch. She tugged off my boxers with short, clumsy laughs born of impatience. We were naked, and for a second I looked her over completely. Broad hips, a soft belly, round white tits, a dark, neatly trimmed triangle of hair. She had a real, adult body, desirable in a way that hit me all at once.

“You have a gorgeous body,” I told her.

“I know,” she replied, without false modesty. “Come and see for yourself.”

I kissed her again while grabbing her ass. I felt her hot pussy brushing against my cock. She took it in her hand and began running it between her lips, up and down, rubbing the head against her clitoris. She moaned when she felt it.

“I've been thinking about this for hours,” she said. “Put it in me.”

I entered slowly at first, watching her open to receive me. She was drenched, so wet that penetration was a hot, perfect glide. Once I was fully inside her, we stayed still for a second, looking at each other up close, feeling the exact weight of the moment.

“Fuck,” she breathed. “Yes. Like that.”

I began moving slowly, brushing every wall of her pussy, pulling almost all the way out before going deep again. Elisa clung to my back and began lifting her pelvis to meet me. Kisses mixed with moans and soft little “more”s.

I slipped my hand between our bodies and searched for her clitoris while continuing to penetrate her. The moment I touched it in the right rhythm, she shuddered.

“Don't stop. Don't you dare stop.”

I kept going. My cock slid in and out through her wetness, while my fingers rubbed the sensitive spot that made her writhe. She came with a muffled moan against my neck, squeezing me inside so tightly that I felt the spasm throughout my cock. I slowed down for only a few seconds, but she was the one who began thrusting against me again.

“Again,” she begged. “I want to come again with you inside me.”

I put her fully on her back, spread her legs wide, and knelt between them to admire her open, glistening pussy, swollen with arousal. I ran two fingers along her lips and then put them in her mouth. She sucked them without taking her eyes off me. Then I lowered my head and ate her properly.

I spread her lips with my thumbs and buried my tongue, first licking slowly from the entrance to the clitoris, then sucking it eagerly. Elisa was not the type to hold back. She moaned, cursed, and pushed my head down.

“Fuck, yes... like that... eat my pussy properly.”

I pushed two fingers inside her and began fucking her with my hand while I sucked her. The bed creaked with her movements. When she came this time, she soaked my fingers and squeezed my face between her thighs. I sat up with my mouth glistening, and she looked at me as though there were no longer any doubt between us.

“Now fuck me for real.”

I penetrated her harder than before. There was no testing the waters or caution anymore. I gripped her thighs and began thrusting into her with a harder rhythm, listening to the wet slap of our bodies. Her tits bounced with every stroke and I couldn't stop looking at them. I ran a hand over one, squeezing it as I fucked her.

“Do you like it like this?”

“Harder.”

I gave it to her. Harder, faster, deeper. She opened her legs wider and took all of me, digging her nails into my arms. Sweat began sticking us together. The thrill of imagining Marina with Darío at that same moment shot through me, and instead of slowing me down, it made me fuck with more rage.

“I'm going to come,” I warned her.

“Don't pull out.”

She grabbed my ass to prevent me from withdrawing. I kept pumping for a little longer and came inside her, feeling her pussy milk me with small spasms as I emptied my load. I moaned without elegance, my face buried in her neck.

We stayed wrapped in each other's arms for a while, breathing hard. Then I remembered the phone. I asked her permission to take a picture of us beneath the sheet, nothing explicit, just enough to suggest that we were naked. Elisa laughed.

“Send it to Marina if it makes you feel better. I'll send it to Bruno.”

The reply arrived soon after: a similar picture of Marina with Darío. Both of them had their shoulders bare, embracing, far too comfortable with each other. It gave me a pang, yes, but also a dark heat between my legs that I hadn't expected after coming so hard.

We fell asleep pressed against each other.

***

I woke in the middle of the night because Elisa was masturbating me. Her head rested on my shoulder and her hand moved slowly over my cock, already hard again.

“Hello, beautiful,” I murmured.

“I couldn't sleep without touching you again.”

I kissed one of her tits and then the nipple. I licked it, sucked it, and gave it a brief bite.

“More,” she said, her breathing ragged. “A little harder.”

I obeyed. I alternated gentle bites with wet licks until her body began to writhe. I kissed my way down her belly, her navel, the insides of her thighs. When I buried my face between her legs, she was already open for me.

I licked her pussy hungrily, not really in a hurry but without holding back. First with my flat tongue, then with the tip insisting on her clitoris, then with deep sucks. At first she came sweetly, and afterward messily, trembling and telling me filthy things that made me laugh against her skin.

“I want you to come in my mouth,” she told me when I came back up. “Or on my tits, if you'd rather watch.”

“In your mouth.”

She slipped beneath the sheet and swallowed me whole with a determination that left me breathless. She didn't suck gently, but eagerly, using her tongue and one hand at the base, sucking hard. I grabbed her hair and moved it away from her face so I could watch her work. She was pushing me to the edge far too quickly.

“Fuck, Elisa... at this rate I won't last at all.”

She answered by pulling my cock out for barely a second.

“That's the idea.”

She took me back into her mouth, deeper this time. I felt my gag reflex when she squeezed too tightly, but she didn't pull away. On the contrary, she let the head hit the back of her throat and kept sucking. That sent me over the edge. I came violently in her mouth, thrusting my hips forward in a crude impulse, and then forced myself to hold back so I wouldn't choke her. She swallowed what she could and wiped away the rest with a tired, satisfied smile.

“Sorry, I got carried away.”

“Don't apologize,” she said, wiping the corner of her mouth. “I liked it.”

We went back to sleep in each other's arms, and at dawn she was the one who woke me again, rubbing my erection against her vulva. She turned around and offered me her ass without a word.

“Put it in me again,” she said at last. “Take advantage while I've got you here.”

She got onto her stomach with a pillow beneath her hips. I positioned myself behind her and guided my cock to her entrance. It went in all at once, slow and deep. From that position her pussy felt tighter, narrower, and the sound of my hips against her ass filled the room from the first thrusts.

“You've got a beautiful cock,” she murmured into the pillow. “Don't let up.”

I gripped her waist and began fucking her with an increasing rhythm. Her back arched, her moans grew deeper. I lowered one hand to stroke her clitoris from underneath while continuing to move in and out. That was what broke her. She came with a powerful, almost violent shudder, squeezing her legs together and moaning without restraint. Her orgasm dragged me along behind her, and I came immediately, pulling out in time to spill between her buttocks and across the small of her back.

I stared at it for a few seconds, panting, before carefully cleaning her and lying down beside her again.

“Who would have thought you'd be the one who nearly chickened out?” she said, still not fully recovered.

“Who would have thought you'd leave me without any strength?”

She laughed and gave me a slow kiss, more intimate than sexual.

“I really liked being with you. Without deceiving anyone, I'd do it again.”

“So would I.”

We spent a while caressing each other as if we'd been a couple for a long time. Then we showered, got dressed, and, just before I left, she hugged me at the door with a calmness that disarmed me more than everything that had come before.

***

When I got home, Marina was waiting for me with coffee, toast, and a single glass of water on the table. I saw that detail and felt something like finally coming all the way home. I hugged her tightly. She returned the embrace with the same intensity.

In the bedroom I saw the clean sheets again. I didn't ask. There was no need. Later we'd tell each other things, in our own way, rationing whatever might hurt and making the most of whatever turned us on. I wanted to know everything and was afraid to hear it at the same time: how Darío had kissed her, how long he'd stayed inside her, whether he'd made her come, whether she'd let him swallow her, whether she'd compared us silently.

But I also knew something else. The fantasy was no longer a fantasy. It had stopped being a useful story for escaping routine and become a memory, new material with which to arouse and make each other jealous—and perhaps cross more lines.

I sat across from Marina, we both drank from the same glass, and we looked at each other as if we'd just opened a door that could never be completely closed again.