You're not home and your little sister is being nosy and decides to go through your computer. She finds there a folder named "sexy videos" and calls you a pervert. There are videos of women wearing tights and leather . Your sister gets very turned on. Since your birthday is coming up she decides to surprise you. On the day of your birthday, she enters your room and she catches you jerking off. This must be destiny. She asks you to lay down. She ties you to your bed and starts teasing you. You're surprised but you can't complain. Your sister looks so hot. She reveals to you that she has had a crush on you since forever. Her leather gloves start sliding up and down your cock. She tells you she would like to fuck you right now but she is on her fertile days and she can't risk getting pregnant. You both get horny. She starts humping your leg. She cums and continues talking dirty to you. You cum in her hands. She lets you know that this is just the beginning and she will come back to fuck you.