Your sister drunkenly confessed to your girlfriend that she has a massive crush on you. A few days later your girlfriend calls her up and begins to blackmail her after filming the incident and having video evidence of your confession that could tear your family apart. She wants to use your sisters car at first, but then she ups her game and blackmails your sister into fucking you without a condom and filming it for her viewing pleasure. Your sister says no at first, but then your girlfriend reminds her that she will tell show the video to everybody and your sister doesn't want that, so she eventually caves in and says she'll do it. You on the other hand are none the wiser to what is going on, and, when your sister calls you into her bedroom, you have no idea what kind of sick fantasy is about to unfold before you... Your sister doesn't explain much, she just awkwardly takes off her clothes and starts filming herself touching your rock hard cock. You thought it was strange that your girlfriend had been cock teasing you for the last week, and the reason was so that you was so incredibly horny that you could never say no to your sister right now; It made it so easy for her to seduce you. She sits on you and starts to film herself bouncing up and down on you. After a short while your sister breaks down and admits why she is doing this, and that it's your girlfriend who blackmailed her into doing it... but then she puts the phone down and stops filming, leaving you both wondering why you are carrying on with the camera off... You obviously both want this... Otherwise, why are you still fucking.
