The Weekend My Sister Suggested an Exchange

There are things you imagine for years without ever daring to name them. For a long time I had been looking at my sister Renata with a mixture of affection and something else I never wanted to admit. That October weekend, when she and her husband came to spend a few days in Querétaro, everything I had kept buried came to the surface.

My husband is called Marcos, and the two of us are open-minded people. We’ve been together for fourteen years and we’ve never let routine kill desire. When I told him Renata and Gustavo were coming to visit, he didn’t object at all. On the contrary, he told me to put something nice together to welcome them.

They arrived on Friday around noon. We took them to lunch at a restaurant in the center, ordered a bottle of wine and a couple of stronger drinks, and spent the afternoon walking among the arcades and the plazas. I have to describe them so you understand what came next. Gustavo is a man in his fifties, tall, with light eyes and a body he keeps in disciplined shape. My sister is one of those women who don’t let age get the better of them: blonde, very fair-skinned, with curves anyone would envy and an ass that drew attention under any dress.

When we got home, Renata said she wanted to take a bath before dinner. I went upstairs with her to show her the guest room, and we stayed talking about the kids, the family, nonsense. While we talked, she started undressing without a hint of shame, the way we used to when we were girls, and then I saw her completely for the first time in a long while.

She had firm breasts, a smooth belly, shaved pussy. I felt a heat rise up my neck and leave my mouth dry. She’s my sister, I thought, and even so I couldn’t stop looking. I had never been with another woman, but in that instant I imagined things that made my legs tremble. I said nothing. I went back downstairs with some random excuse.

Marcos and Gustavo were chatting on the sofa. I fixed them a drink and went upstairs to shower too. Under the hot water I couldn’t get Renata’s image out of my head. I touched myself thinking about her, about her white skin, about what it would feel like to kiss her, and I came biting my lip so they wouldn’t hear me.

***

I came out of the bathroom and put on a short red spaghetti-strap dress, with nothing underneath except a tiny thong. When I went downstairs, Renata had put on a tight skirt and a blouse that left her navel bare. We looked each other up and down and laughed. Our husbands made jokes, pretending not to notice a thing.

Close to eight, we put together some snacks and cocktails, and the four of us sat down in the dining room. Between the conversation and the drinks, it was almost midnight before we noticed. Gustavo and Renata said they were tired from the trip and were going to bed. We all went upstairs, said goodnight at the door of their room, and Marcos and I went into ours.

We took a quick shower and got into bed naked, as always. Marcos started kissing my neck and running his hands over me, and I got turned on right away, still with the image of my sister floating somewhere in the back of my mind. I kissed my way down his chest, his belly, until I took him in my mouth. I felt him harden against my tongue while I buried my fingers in his hair. Then I climbed on top and we moved slowly until both of us came almost at the same time. It was calm sex, the kind that soothes you.

We stayed lying there, catching our breath.

—Be a doll and make me a coffee —Marcos asked with that smile of his that knows I never refuse him anything.

—Of course, love —I told him, and went down to the kitchen just as I was, with nothing on.

***

I was putting the water on to heat when I heard footsteps. It was Renata, who couldn’t sleep and had come down for a glass of milk. She saw me naked and laughed.

—Put something on, sis, you’re going to catch a cold —she said, though she never took her eyes off me.

—We sleep like this in this house —I answered with a shrug—. Marcos and I are pretty relaxed about that sort of thing.

She was wearing a sheer nightgown, with a thong and a bra showing through underneath. She opened the refrigerator, poured herself the milk, and I stayed there looking at her back, the curve of her waist, without really thinking about what I was doing.

—For your age, you have an incredible body —she said to me when she turned around.

—You’re not exactly falling behind —I replied, and my voice came out lower than I expected.

I don’t know who moved first. I hugged her from behind, my hands on her breasts, and she turned around and kissed me on the mouth. It was a slow kiss, no hurry, the kind that changes things forever. She slid down the straps that no longer existed, took my breasts in her hands, bent her head and caught one of my nipples between her lips. I had to hold on to the edge of the counter.

—Ever since we were young, I used to imagine doing this to you —she murmured against my skin.

—You’re going to be the first woman I’ve ever been with —I confessed.

She looked at me and smiled. She told me she’d already had two or three experiences with other women, that Gustavo knew everything, and that there were no secrets between them. I told her Marcos and I were like that too, that we had even shared a bed with another couple a couple of times, but that we had never done a real swap.

—Gustavo is upstairs waiting for me —she said, sliding her hand between my legs—. And the way you are, I think you want it too.

She kissed me again, slowly sucked her fingers while looking me in the eyes, and held out her hand.

—Let’s go upstairs.

***

I went into my room first. Marcos was still waiting for the coffee that never came.

—I have a surprise for you —I told him.

—What is it? —he asked, sitting up in bed.

At that moment Renata and Gustavo came in, both naked. I saw Marcos catch his breath.

—A swap —I said—. Tonight.

Our bed is huge, so all four of us fit without any problem. Renata lay down beside me and Gustavo got in between her and Marcos. The men looked at each other, took a swallow from the glass, and Gustavo suggested Marcos go down for something to drink and leave the two of us alone for a while. They knew exactly what they were doing.

When they left, Renata kissed me like no one had ever kissed me before. She went over my ears, my neck, my shoulders. She came down to my breasts and lingered on each nipple with a patience that drove me crazy. She kissed my belly, my hips, and kept going lower. When her mouth reached my pussy I thought I was falling apart. She licked me slowly, without rushing, opening me with her tongue, and then kept going down my thighs to my feet, biting my toes, before climbing back up again and running over me all over.

When she came back to my clit I couldn’t take it anymore. She focused all her attention there, sucking and tracing circles with her tongue, and I came with a force I had never felt before. I came in her mouth trembling, gripping the sheets. When I finally stopped, she came up to kiss me and let me taste my own flavor on her lips.

When I looked up, Gustavo and Marcos were standing beside the bed, watching us, clearly turned on by the show we had given them without even knowing it.

***

From that point on, every boundary disappeared. Renata got up and kissed Marcos hard, and I did the same with Gustavo. He had his hands everywhere, running over my back, my hips, my chest. We laid them both back on the bed, face up, and knelt together to please them, looking at each other and laughing between kisses.

Then I climbed on top of Gustavo and she on top of Marcos. We kissed over them while we moved, and the men played with our breasts, setting the rhythm with their hands on our hips. I couldn’t believe what I was living through: my sister a breath away from my face, the two men underneath us, the heat of four bodies. We all came almost at the same time, with an uproar of moans that must have been heard all the way out in the street.

The four of us collapsed onto the bed, out of breath. We rested a couple of minutes and then I was the one who took the initiative. I started kissing Renata and imitated what she had done to me, going slowly down to her pussy. While I licked her, I felt Gustavo lifting my hips from behind. He prepared me carefully, with his tongue and fingers, and entered slowly into a place where only Marcos had been. At the same time, Marcos positioned himself on my sister, who returned the favor with her mouth.

Before we finished, we changed positions again. Marcos went with Renata and Gustavo stayed with me. I’m multiorgasmic, and that night I proved it like never before: I lost count of how many times I came. The four of us ended up wrecked, tangled in the sheets, and fell asleep like that, wrapped around one another, until the light came in through the window.

***

The next day we woke up with no shame at all. The four of us got into the shower and found each other again under the water, Marcos with my sister and me with Gustavo, laughing at how uninhibited we’d become in a single night. Then we went out for breakfast and spent the day at a safari park on the outskirts of the city, like two normal couples sharing a huge secret.

That night, after dinner, something he ate upset Gustavo’s stomach. He started having stomach pain and we had to take him to the doctor: a bad bout of gastroenteritis. He was prescribed medication and we went back home. He went upstairs to lie down, and a little while later Marcos and I also returned to our room.

It hadn’t even been an hour when there was a soft knock at our door. It was Renata.

—Gustavo is asleep —she said in a low voice—. He told me to come with you.

She climbed into bed between the two of us. Marcos and I started kissing and caressing her. He penetrated her slowly while I took care of her clit with my tongue and, at the same time, of my husband. I felt them both come almost at once. Then she returned the pleasure to me with her mouth and I finished Marcos off, until the three of us were exhausted and fell asleep together again.

In the morning my sister went up to see her husband, who was already feeling better. We had breakfast, helped them with their suitcases, and said goodbye at the door with long hugs and a new complicity. They were going back to their city with more than memories of walks and restaurants.

That was our first partner swap. I never imagined that a lifetime’s curiosity would be resolved that way, one random dawn, going down to the kitchen for a coffee. And ever since then, every time my sister calls to announce a visit, Marcos lights up and my pulse races.