step Sister is afraid of storms

Description: Your step parents left for a weekend trip and you're home alone with your step sister. you both wanted your step parents' king size bed but none of you are willing to share it so you make a bet. your sister loses it but, as the annoying step sister she is, she comes in the middle of the night asking you to let her stay with you. it's stormy and she's afraid (or that's what she said). she starts teasing you with her ass, but she acts like you're lying about it. you get tired and end up pulling down her panties.you have a night of forbidden sex together that ends with you cuming inside your step sister!