I had just graduated college a couple of months ago. Here I was in a new city with a new career. I had a new apartment and my lover had moved in with me. My lover happened to be my sister.
At first, our new life together wasn't too bad. My sister Marie found a job as well and home life was good. I discovered, however, that my sister was a nympho. She had to fuck all the time, and she never was satisfied. She also needed my constant attention, and that was starting to get on my nerves.
The situation changed one day when I arrived home from work. When I opened the door, there sat a woman talking to my sister. Her name was Kelly. Kelly worked with my sister Marie and also happened to live on the floor below us at the apartment complex.
Kelly just gazed at me and I was doing the same. I couldn't take my eyes off her. Kelly was the total opposite of my sister. She was petite, short blonde hair, and had small breasts. I was used to my full figured sister with her large tits.
My sister said, "Jason, come in and meet my friend, Kelly."
We shook hands and made small talk for a few minutes. I excused myself and went to change my clothes. I had been planning to go for a run after work. When I came back into the living room, Kelly was just getting ready to leave.
I walked out of the apartment with her and walked to her place as we talked the whole time. When we got to her doorway, Kelly asked me if I wanted to come in. I said I could come in for a few minutes before I headed out to go running.
Once the door was opened we fell into each others arms. It just happened and I couldn't explain it any better than that. My hands were groping her body, our mouths were open and tongues touching.