Your step-sister is home from college for the weekend and you decide to play a trick on her. You lock yourself in the bathroom when she has to use it and watch her be desperate, You have placed a in her room so you can watch her struggle as she holds her full bladder. She really has to pee. She is mad that you've locked the door but doesn't realize that you are secretly perving on her. You watch as she crosses her legs as she hold on. She looses articles of clothes in her attempt to not pee herself. She tries so hard tro hold it, but she begins to leak. You can see a stream of piss trickle dow... Show more