NOTE: Please keep in mind that English (still) isn't my native language. I do hope you enjoy this shorter story.
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I was 37 when what probably still is the highlight of my sex life happened. My daughter's 18th birthday was about a month earlier, and she had a nice little party with some close friends. She wanted it like that, although we gave her the option to organize a bigger party. Ellie was a grown woman by then. She was a blonde, like her mother, and also had her mother's clear blue eyes. Her face was really pretty, as she seemed to have received all the best features of myself and her mother. Her skin was creamy white, and she had a gorgeous body. I tried not to let any incestuous thought slip into my mind, but it was hard to not when seeing her wander around the house in the sheer outfits she wore to sleep in. Her breasts started growing when she got into puberty, until they were at least a D cup by the time she was 18. Her ass was small but firm and perky. Ellie's mother and I were divorced, but we had a fair deal going on. She stayed with me for a week, and then went back to her mother for the same amount of time. Luckily we weren't fighting a lot, as we felt like getting along is the best option for our daughter, so we were able to make exceptions and all of that. Anyhow.
Next to my daughter, there was another woman in my life at that time. We were together for almost four years when all of this happened. Brandi was truly awesome. She had a great personality as well as being one of the most gorgeous women I've ever seen. She was quite a few years younger than me, being in her late twenties. She was half-Asian, as her mother was from the Philippines and her father was white. She had medium length pure black hair that cupped her pretty face, with hazel eyes. Her pale skin contrasted the dark hair in an awesome way. Unlike my daughter, her curves were mainly put into her butt. It was big, round and bouncy. Her breasts were smaller, although still a C cup.
Like I said, Brandi was in her late twenties, which made her pretty much in the middle of me - thirties - and my daughter, who was still a teen. The two girls got along really fine, probably because they didn't have a massive age difference. Brandi seemed to be an excellent stepmom for Ellie, but on top of that a great friend as well. But maybe they got along a bit too well..
It was a Friday evening. I left work earlier than usual as it was the weekend where Ellie would stay with us, and I wanted to surprise her by getting home early. I expected to hear the girls gossiping already - Brandi didn't work on Fridays - but when I got home the living room was empty. I assumed they were either outside or upstairs, but that wasn't really a problem. I decided to just go upstairs, check if they were there and then maybe take a shower before searching them outside.
When I started going up the stairs, I could hear the first sign of the girls. But it wasn't what I expected at all. It was clearly a moan, although not very loud I could still hear it slightly. Curious about what was going on - either one of the girls was masturbating, or Ellie brought home a guy as she expected to be pretty much home alone (at least those were the options I could think of) - I moved further on. My heart started pumping a bit faster as I heard the moaning was coming out of my bedroom. Now fully expecting it to be Brandi playing with herself as she waited for me coming home, I quietly pushed open the door.