Chị kế của tôi chưa bao giờ bú cu trước đây

This morning I woke up a bit earlier than usual and caught my stepsister naked on the couch. She was touching herself. So I use the situation. And tell her if she don't suck my cock right now I will tell to parents what she is doing. So she was shocked and don't want to parents know that she was masturbating on the couch. Before she start to suck my limpy cock I didn't realize that this is her first blowjob. Enjoy!