This was a few years ago, when I lived with a female roomate in college. We were always flirty with each other from the moment we started living together. She was very fit, and on the soccer team, with an ass you could bounce a quarter off.
We would sometimes work out together and she would always tease me by wearing hardly anything at all, bending over in front of me, etc. One day we got back from our workout to the house and started to argue about who’s turn it was to clean the kitchen (stupid I know). We were standing in the kitchen arguing, with her in a sports bra and booty shorts, and me in just shorts. After many minutes of arguing, I just couldn’t take it anymore and grabbed her sexy little sweaty body and just kissed her. She didn’t hesitate a bit and kissed me back, long and deep. I immediately stripped off her bra and shorts and bent her over the counter. She didn’t say anything as I pulled down my shorts and lined my cock up to her pussy. I slid it right in as she let out a loud whimper. I watched her lips grab my cock with every pump until I buried my whole cock in her tight pussy. I’d like to say I lasted a while, but I had to cum fairly quickly. I told her I was going to cum and she told me to cum inside of her, which was all I needed to hear. I slammed my cock as far as I could in her, held her hips as I emptied my balls inside of her, filling her with my cum.