After discovering that David, could I call him my wife's lover?, was going to work with me regularly, I spent Sunday feeling uneasy. Although Iris had persuaded me not to break up with him, I couldn't stop thinking about how this could complicate things.

On the other hand, Iris and I spent all Sunday morning in bed, enjoying each other's company and our bodies, with the enthusiasm and desire that had been inflamed since we started talking about the fantasy of a third person having sex with my wife. In that sense, I couldn't complain; my wife, who had previously been more passive and reluctant, was now the first to throw herself into making love with an intensity I had never seen before.

Although I expressed my doubts again, Iris convinced me once more, so on Monday I went to work with the idea that I had to discuss the matter with David. Of course, it was not an option to wait any longer and let him discover at our next meeting in person that the husband of the woman he was sleeping with was his boss.

When I got to my office, the first thing I did was open my email and look for a message I had received from the human resources department with David's CV. I had planned to look at it before I knew what I now knew, to see who I was going to be working with, but the day-to-day grind of work had made me forget. I told myself with a smile that now I was going to do it, also to see who was fucking my wife.

After reading David's CV, I came to the conclusion that it was disgustingly flawless. He had finished his degree quickly and with very good grades, completed two master's degrees and worked at some prestigious law firms in Madrid. He had participated in a triathlon (which explained his fantastic muscles, his obnoxiously perfect body and the stamina he showed when repeatedly fucking my wife) and had even volunteered with an NGO that cared for abandoned dogs. And he was thirty-five years old, sixteen years younger than Iris or me. The only thing that didn't appear on his CV, but which I knew, was that on top of all that, he had a huge cock.

How could I compete with someone like that? Younger, more athletic, attractive, a good student, noble of heart, a promising professional, and a tireless lover.

Although Iris assured me that she only loved me and that her encounters with David were just a bit of fun that also served to make my fantasy come true, I was terrified that something more might develop between them. David had too many good qualities and no weaknesses. Hell, even I thought that if I were a woman, I would be attracted to him too!

I only found one thing strange or negative. Why had he moved to Barcelona from Madrid, and why had he only been with another company in Barcelona for two months before joining ours?

After reviewing his CV and gathering my strength for what seemed like the most difficult meeting of my life, I called him into my office.

After he came in and we greeted each other, he sat down, and I remained silent for a while, looking at him and thinking: This is the man who is sleeping with my wife and giving her more pleasure than I do.

Before the silence became too uncomfortable, I welcomed him to the company and our department and explained for a while how we work.

Then I asked him some details about his professional experience, and when I saw the right moment, I asked him about his job in Barcelona and his sudden change of job.

He told me that he had inherited a house from a great-aunt in Barcelona and, at almost the same time, he had been offered a very well-paid job, also in Barcelona, so he decided to move and save himself the high rent he was paying in Madrid. By one of those strange coincidences of life or fate, he had come to Barcelona on the very same day that Iris and I were at the beach watching the “Príncipe Agbar", the day we had set out on that journey of exploration and fantasy that had led us to him.

The house had turned out to be a good choice, but the job was a trap. The company was in bankruptcy proceedings, with angry employees and several lawsuits from suppliers and customers. The owner was looking for a solicitor to act as a “lightning rod”, attending all the meetings and absorbing the insults and reproaches of all those affected, while the owner remained calm in his mansion which was obtained by swindling everyone.

Furthermore, from a legal point of view, the defense was impossible, and a settlement was not feasible either; the owner was just trying to buy time. Faced with this scenario, David had quickly looked for another job and found it at our company.

After discovering that even that part of his professional career was not reprehensible and that he had not been fired from that job but had left when he realised it was an explosive situation, as I myself would have done, all that remained was to face the most difficult part: telling him that I was Iris's husband.

I needed some time to prepare myself, so I suggested we have a coffee. We went to the break room, where we had tables, a fridge, a coffee machine and various utensils and equipment for having a drink or something to eat, if you preferred.

We talked for a while about various topics, including football, and I discovered that he was a fan of Real Madrid, the arch-rival of Barcelona — another point of competition between us, in addition to my wife.

When we finished our coffee, seeing that I could no longer delay the conversation, I said, "Let's go to my office. I have something else to tell you."

"I thought we were done," he replied.

"It's one last detail," I replied.

When we got to my office, we sat down; I stared at him and finally said, "I know you're sleeping with a married woman."

He looked at me with a stunned expression and said, "How...? How do you know...?" And then, with a hint of anger in his voice, "But this has nothing to do with my work or with you. What I do in my private life is my business alone."

"I'm afraid in this case, it is my business. I am Iris's husband."

David stood there with his mouth open, gasping for air and looking as if he were thinking, 'Oh no, what have I gotten myself into?

I continued, "Until last time, I didn't know who you were or that we were going to be working together. But don't worry; as you said, it's something that should stay out of work, in the private lives of the three people involved. As you can see from the photos and the video conference, I was informed; it was a little game we played with my consent, and Iris would be willing to continue, and I would support her in that."

More relieved, he replied, "Well, for my part, I'm delighted. You have a fantastic wife with an incredible body and sensuality. You're very lucky; I envy you."

"Why did you choose her? What attracted you to her?"

"Well." He hesitated. "I had recently moved to Barcelona; I had no contacts or friends. I was spending some time in that place, listening to music, and I saw this elegant woman on her own, who was keen to dance with me, and I thought I could have a good time with her. I didn't think we'd end up in bed, but I certainly enjoyed it a lot."

"Didn't you mind that she was married?" I asked.

"If she decided to do that, it was her business. I had no reason to get involved in the relationship between a woman and her husband. I didn't know if the relationship was good or bad, and of course, I knew that sleeping with her once wasn't going to break a relationship if it was already broken. I wasn't thinking of becoming her boyfriend or lover; I just wanted to have a good time. In that sense, since I wasn't looking for a stable relationship, it suited me that she was married. I've had two or three brief relationships with married women, although never with the husband's consent, and in my experience, married women who are a few years older have more experience, know what they want and, in many cases, want to look outside the home for what they don't have at home, and they tend to be more passionate." He quickly added, as if apologising, "Although that's not the case with your wife, she's just looking for a new experience, and with you, she has everything she needs at home."

Are you sure you don't need anything more than what I give you? I thought. A bigger cock? More stamina and orgasms every time? But I just said, "So what do you think now?"

"The same. I really enjoy her, but I don't want to be her boyfriend, and besides, I couldn't; she loves you too much."

"And I love her. I wouldn't want to lose her."

"You must love her a lot to let her sleep with another man, although she told me that one reason was a fantasy of yours."

"Yes. I wanted to see her enjoy herself with another man, see her free, see her confident. And it's working for both of us."

"Have you done it with other men?" he asked curiously.

"No. You're the first."

"I feel lucky," he said without a hint of mockery.

"You are," I replied. "Well, I hope we don't talk about this anymore at the office. As before, Iris will take the lead, and we'll meet with you more often, although from now on I'll be present."

"Although last time you were watching us on video, I think I'll feel uncomfortable with you in the room, but of course, it's not a problem."

With that, we ended the conversation, and he got up and went to his workstation.

For the rest of the day, I worked as usual, meeting with him and other members of our team, giving instructions and preparing documents.

When I reflected on the conversation, it seemed strange to me that we had discussed such an unusual topic so civilly, but I certainly wasn't going to complain. However, I couldn't help thinking that I should feel hatred or rejection towards the man who was sleeping with my wife, even if it was with my permission, but the fact is, I didn't dislike him.

When I got home, my wife wasn't there. I remembered that she had an appointment with the gynecologist. After having our daughters, we had decided that she would have an IUD, an intrauterine device, fitted as the most convenient method of contraception. When the first IUD expired, it was replaced with another one. But when the last one expired, as she was already entering the climacteric, it didn't make sense to have a device implanted that could last more than 10 years for only one or two years, so she started taking contraceptive pills until she went through the menopause.

When she arrived, I had already prepared dinner. She asked me about my meeting with David, and while we ate, I told her how it had gone. Iris was happy that everything had gone well for me and that we could continue seeing him.

When I asked her about her gynecologist appointment, she replied that she would tell me later, in bed, which intrigued me, although, given that we had been making love almost every night lately, it didn't seem like a bad time or place to talk about her reproductive system and source of pleasure.

Once in bed, she began to nibble my ear while caressing my chest. I began to caress her, running my hands over her curvy hips and luscious breasts.

We both became aroused; my cock became erect, as did her nipples, which I began to nibble and lick, while my right hand moved to her vulva and began to caress her. She was aroused and wet, and I was able to insert two fingers without difficulty. I began to move my fingers in and out of her warm vagina, and then she whispered to me, "Do you like my vagina?"

"I love it. When you're so wet and hot, it's glorious; there's nothing better in the world."

"Well, take advantage of it; stick your cock in me. I want to feel it inside me."

I didn't need any more encouragement; I got on top of her, placed my cock at the entrance to her sex, and with one thrust, I pushed it all the way in. She was right; there was no greater pleasure for me than feeling her lubricated, warm and soft vagina around my member.

I began to fuck her gently, enjoying the wetness inside her while my hands caressed her face and breasts.

Then she looked me intensely in the eyes and said, "You know, the doctor told me I shouldn't take contraceptives anymore; they're not good for my high blood pressure."

"So what?" I asked, slowing down the rhythm of my hips a little.

"As long as I have these irregular periods, even if they're only every two months, we'll have to use condoms until I have my last period. She told me that although the chances of pregnancy are minimal, they're not completely zero. The more we do it, the more chances there are of me getting pregnant. Every time you come inside me, it's like buying another lottery ticket. And we might end up winning that lottery."

I never liked condoms; they took away my sensitivity and prevented me from enjoying the wetness and softness of Iris's vagina.

"So make the most of today, because this is the last time in a long time that you'll feel me like this. From tomorrow onwards, you'll only be able to enter me with a condom on," added Iris.

Hearing that excited me even more; I tried to slow down to last longer, but the thought that it was the last time in months that I would be able to enjoy myself like this was too intense. I moved very slowly, focusing on the sensations of my glans, of my entire cock, feeling my wife's vaginal walls envelop and caress me.

My wife looked at me, watching me with lustful eyes and at the same time observing my reactions. Then she continued, "On the other hand, I've been thinking about David. We make love almost every day, so the risk of pregnancy if we don't use a condom is higher, but I only see him from time to time, so the risk is much lower. Besides, sex with him is too good to spoil. It would be like going to dinner at a three-Michelin-star restaurant, one of the best in the world, and putting ketchup on the food... So I decided that he won't use condoms when he fucks me…"

I froze when I heard that. I was going to have to fuck my wife with a condom and him without one. I felt humiliated and excited at the same time. To think that it was the last time, perhaps in months, that I was going to enjoy the immense pleasure of feeling the softness and wetness of my own wife's vagina on my cock, while her lover could feel it every time he fucked her, was too much. I sped up my thrusts without realising it, penetrating her harder, as if trying to prove my manhood.

Iris said to me with a mischievous look on her face, "Looks like you like the plan…"

"You're becoming a bad woman," I said, panting and with a knowing smile.

"Yes, I'm discovering that I like it... and that you love it. Now enjoy your last time; from today onwards, only David will fuck me without a condom, and I will only feel his semen filling me up. In a few weeks, to remember it, you may have to ask him what it feels like to cum inside your wife, what it feels like to feel his cock entering my vagina, soaked in my fluids, without a condom."

I couldn't take it anymore. I lost control and came with an intense, gigantic orgasm. My body arched, my scrotum contracted, and I shot what was one of my biggest loads of semen into my wife's receptive vagina. My whole body trembled for what seemed like an endless time. After emptying myself completely, I lay exhausted and collapsed next to Iris.

"I'm sorry," I said when I caught my breath. "But it's your fault for provoking me like that. I wanted to wait for you to come."

"Don't worry, I enjoyed it very much. Although you certainly didn't last long. That'll be the advantage of using condoms. By reducing sensitivity, you'll last longer without coming." She added teasingly, "Maybe almost as long as David."

I looked at her a little seriously, and she said with a smile, "Don't worry; I'm doing it to tease you. I really enjoy being with you, but I'm discovering how much you like me teasing you, and I love seeing you so eager for me, seeing how desperately you want me and how you throw yourself at me and explode after wanting me for so long. It makes me feel attractive, desirable and sensual."

She kissed me passionately and then said, "And since you've made me so horny, I need to be fucked, and you can't do it anymore, so I'll have to turn to someone else... Someone who won't have to use a condom either... That only applies to you…"

I looked at her in surprise.

Then she opened a drawer in the bedside table and took out the vibrator we had bought when we started playing these games.

"Had you forgotten our friend 'Prince Agbar'?" she said in a suggestive voice. "Its size was perfect for preparing me for David's enormous cock. It's somewhere between your cock and his. Now he'll fuck me the way I need and enjoy my wet insides without any latex in between."

Iris took the vibrator, turned it on, and placing the tip between her swollen, wet vaginal lips, she slowly but firmly inserted the vibrator all the way in.

Then she began to move it in and out of her vagina with her right hand while her left hand caressed her swollen, smooth breasts.

I watched her with increasing excitement, my cock regaining its erection despite the short time that had passed. Her mouth was open, panting; her cheeks were flushed; her eyes were closed; and her nostrils flared, trying to take in all the air her hyper-excited body demanded.

Her gasps and moans of pleasure excited me, and I watched with envy as the vibrator slid in and out of her soaked sex, the long, shiny cylinder covered in Iris's vaginal fluids.

I noticed how the rhythm of her hand quickened as she thrust the dildo in and out forcefully; how her hand squeezed her breasts harder, kneading them and pinching her nipples; and finally, her body arched strongly, she let out a wild moan, and an orgasm swept over her from head to toe, her sweaty body trembled for several minutes, and finally, she collapsed.

My cock was fully erect, and I wanted nothing more than to penetrate her again, although I didn't know if I could cum again so soon after the last time.

After a while, she looked at me and said, "Haven't you had enough?"

"No."

"Would you like to come inside me again?"

"Yes, please," I said desperately.

"But that would be breaking the rules. We agreed it was the last time for a while. If I lie to you, how can you trust me?" she said mockingly.

"I don't care... I want to feel you again... I don't know how long it will be before I can penetrate you again without a condom."

"But that will take the value away from the last time. You enjoyed me very intensely, and it’s best to hold on to that feeling. And this time you’re more tired," she said in a teasing tone.

Listening to her talk, I couldn't take it anymore. I rubbed myself against her, my cock against her hip, my hands squeezing and kneading her breasts.

She clearly enjoyed seeing my desperation and desire.

Finally, she said, "Let's do something in between. Get on top of me."

Hopeful, I got on top of her, the tip of my erect cock resting on her clitoris. She then guided my cock with her hand until the tip entered her vagina a little, but she left her hand around my cock, forming a cylinder with her fingers.

"Now you can fuck me. This is a compromise; I'm not breaking my promise from last time, but you can enjoy a little bit of my insides with the tip of your cock," she said with a smile, aware of my surprise.

I was so desperate and excited that I couldn't take it anymore. I started pumping my hips, pushing as hard as I could to feel the softness of her vagina. But her hand prevented me from penetrating more than a little.

It was a frustrating yet exciting sensation. Feeling that heat and wetness at the tip but not being able to go all the way in was very strange, but I couldn't deny that it turned me on more and more. Being so close to what I wanted most and not being able to get it drove me crazy with desire.

I continued to fuck her in that strange way, feeling only the delicious sensation of her vagina on the front of my cock. Meanwhile, I sucked her nipples with relish and massaged her breasts with my hands, taking advantage of the fact that, being a little lower than usual, her breasts were more in front of me.

Finally, I reached a new climax. With only the tip of my cock inside her, I began to spurt semen as if I hadn't come less than an hour ago, and then I collapsed, exhausted, on top of her.

It was all so intense that I don't even remember when I fell asleep.

To be continued. Next chapter 7. In our house.