Your little Step-sister Katherine is kneeling on the ground in front of you in her room. She is talking about her day at school. She explains to you that her best friend told her this secret... Her friend at school rested with her Step-brother! Katherine explains that her friend sucked her Step-brother's cock, fucked him, and her friend even had an orgasm! Your Step-sister is now wondering why you have never offered to do that with her. She has a really sad look on her face, so you begin to gently explain why Step-brothers and Step-sisters don't have sex with each other. She doesn't get it.... Show more