My real dad died when I was young, and I have only a faint memory of someone when I was very young. Mom met my future stepdad, Marten, when I was thirteen. I instantly disliked him since I felt he threatened what Mom and I had together. Looking back, I must have been rather obnoxious. Yet, Marten was a nice guy, and he was very patient, and slowly, as time passed, he got me to accept him.
Mom married him when I was fifteen, and there was a new low when he moved in to live with us. By then, I had discovered a woman's powers over a man. I could tell he was not unaffected by how I looked. I could, for example, make a scene in the kitchen dressed only in a bra and skimpy panties. He tried to hide it, but I could tell he had checked me out when he thought I was not looking. I was on the school's gymnastics team and had a great athletic body with all the right curves, and I knew I was good-looking.
But Marten managed to win me over again. However, there remained a slight tension and guarded awareness between us.
Marten and I have the same birthday by coincidence. It was in July, right at the peak of the vacation period. While growing up, we both accepted that very few friends were around to celebrate with us. So, Mom and Marten decided we were going for a mini vacation by the ocean as a celebration. It was my nineteenth and his forty-sixth birthday.
The idea was to spend a few lazy days at the beach, get a suntan, and live comfortably in a large luxury hotel. But we received terrible news on the evening of the first day. My grandmother had become gravely ill and had been taken to the hospital. It was decided that my mother would go home the following day, even if it were our birthdays. We had planned to stay two more nights after that.
The following day, my mother left early. Marten and I were left alone at the hotel. There was a distinct tension as we were at the beach. I didn't want to admit that I was affected by being so close to him in such an intimate environment. I followed him to his suite in the afternoon instead of going to my room. There were flowers and a bottle of Champagne waiting in the room. Later, we learned it was a surprise my mother had ordered already while booking the hotel. Since it was our birthday, we had a glass of Champagne, which increased the tension.
Afterward, I went to my room to change for dinner. I had brought a lovely evening dress, as we had intended to have a fancy dinner. I could tell Marten checked me out when we met in the lobby. He was looking sharp, with a nice shirt and slacks. The restaurant was cozy, with a band playing soft music. Marten surprised me when he ordered wine for the two of us. The atmosphere was very relaxed, and no one fussed about me being too young for wine. Again, I did not want to admit it, but the fact that it was our birthday celebration made me feel we had a special moment together. I got the impression that Marten shared the same feeling.
After eating, we danced to a couple of songs before leaving. We were both surprised when I answered yes when he asked me for a dance. We danced close together to the slow music. He tried to keep his distance, but I could tell he had an erection.
When he moved in with Mom and me, I had managed many times to give him an erection when I made my dramas. I often wore only lingerie while acting out, and he had struggled to hide his boner from Mom and me. I had this gleeful feeling that I had somehow made a score.
I followed him to his suite, where we had the last Champagne. I could not help myself from playing out the tricks I had learned that turned him on. I felt encouraged when he got an erection while we danced. I was getting to him and thought it was fun. One thing led to another where I teased him increasingly. Fueled by my success, I became more provocative.
We had sex on the couch. I felt bewildered afterward. He also looked very unsure about how we should handle the situation. It had been such a power rush seeing how I got to him while teasing and how turned on he had become. I do not know if it was the environment, the wine, our shared birthday, or something else. Neither he nor I had been able to put on the brakes. Not even when we got past the point of being innocent - we were making out and pulling off each other's clothes.
It did not improve when we moved over to the king-size bed. Instead of talking about what had happened, we had sex a second time and fell asleep together.
I freaked out in the morning when we were woken up by the phone, and it was my mother calling. I managed to be quiet, and Marten kept his cool while talking to Mom. She spoke of Grandma. Her condition was severe but not life-threatening, as they had feared the day before.
I was hungover, and guilty feelings welled up in me as I felt I had betrayed Mom. It did not improve when I had to be naked in front of Marten. Our clothes were scattered around the couch at the other end of the room. I felt very self-conscious about having to walk naked into the bathroom. Exiting again, I still felt very self-conscious when collecting my stuff and putting them on. I could feel Marten's eyes follow me. It did not become better when he went naked into the bathroom. He had a raging erection from watching me getting dressed.
I went to my room to change, and we met again for breakfast. While eating, we began talking about what we had done. We both regretted it and felt it was wrong against Mom. We spoke more on the beach and agreed it could never happen again. But I could feel how the calm and relaxed environment was affecting us again as it had the day before. I caught him looking at me repeatedly as I lay in my bikini next to him. He caught me several times checking out his trunks to see if he had an erection.
At lunch, we went back to the hotel to eat, and after we were done - I do not know why - we went to his suite. We fucked like two rabbits in heat. It was among the most intense sex I have ever had. Usually, I am not vocal, but I was screaming at the peak.