The Incestuous Family

Being a twin has its advantages, growing up you always have someone to play with and now as a teen you still have someone to “play” with. Before I continue I should explain the kind of relationship me and my sister have. We’re really close, we always play together and we’re always there for each other, I always treated her as one of the guys. Now my sister and I are fifteen and up until a couple of days I never really noticed her in a sexual way. Before I continue I will introduce myself, my name is Billy and my sisters name is Rachel, we are both 15 and I’m about 6’0 and my sister is about 7 inches shorter than me at 5’5, and we are also thin, in an athletic way. Now to get to the real story.
Last week my mom and dad left me and Rachel home alone during the weekend while they went upstate to go visit our older sister Becky who had just had a baby. As my parents left I already had the weekend planned out, from the moment they left till an hour before my parents came back home. About half an hour after my parents left I left to the park to go play soccer with my friends, about two hours later I came back home. Being sweaty and tired from soccer I went upstairs to go take a shower, not even noticing that my sister wasn’t home. After my shower I went downstairs and to go look for something to eat, but I couldn’t find anything so I went up to Rachel’s rooms to ask her what she wanted to eat so I could order but she wasn’t home. I ordered pizza and watched tv in the living room, it was almost midnight when my sister got home.
When my sister came in I noticed she was drunk straight away, she reeked of alcohol and when she tried to talk her voice was slurring.
“Hey, where have you been?” I asked
“Where do you think?” Rachel replied with an attitude
And so she made her way to the stairs to go to her room but she was too drunk to make it, so I had to help her.