I'm a slutty little step sister and I'm having a girl’s night with my step brother Jordan’s new girlfriend to get to know her better. I notice she is checking me out, and I ask if she likes girls, she says no. To test that, I turn on Bubble butt by Major Lazer and give her a seductive dance with twerking. When I finish, she farts and apologizes. I just laugh, tell her its ok, and I fart also. I start a farting competition with her, and if I win she becomes my girlfriend for the night. She’s unsure, but I persuade her. We both fart back and forth, and I can tell she is really loving my farts. I win and pull out a strap-on, and tell her I'm going to make her my bitch. I start fucking and dominating her with it. She tells me that I'm way better then Jordan. I start talking about how wimpy Jordan is. I tell her from now on she’s my girlfriend, not Jordan’s.