My run with my sister

Hi. My name is Zach. My folks are divorced and both are remarried. I live with my mom and Step-dad, Chris, full time. Chris has four children from a previous marriage, three of whom are either in collage or out with their own families. I’m an only child myself. So it’s just my mom, Chris, my bombshell step-sister, and I most of the time.
Now my step-sister, Taylor, is something to look at. She’s 5’ 9”, 16 years old and well developed. She has like C cup breasts that are firm but bouncy. She has long wavy blond hair and a very tight butt. She could very well be the next hottest model.
Now, I parents travel a lot and some of the time we stay home and continue with our schooling. So, one time my folks left for a two week business trip to Europe and we stayed behind. We had our whole three story, two square mile home with 25 acres of land to ourselves. So we threw outrageous parties and stayed up late. One day, about a week in, we had just come home from a football game, and me being the senior quarterback, I was rather sweaty. So I go take a shower. When I got out Taylor was swimming in our indoor pool. I went to our rec. room and started playing Halo 2 online in a place called VIP Lounge, where you can only get in with an invite
I’m listening to everyone talk about who they were fucking, while shooting the shit out of them, when Taylor walks in with a towel wrapped around her and sits in the other gaming chair. Then she bends over and picks up her controller, logs in, and starts to kick some ass with me. I look over and see that she is completely naked.