You didn't think anyone was home, and apparently neither did your step-sister. So when you walk into the bathroom, you catch her smoking cigarettes! You know shes an adult, but your step-mother would be so mad since it's her house! You see this as the perfect opportunity to blackmail her into stripping for you. You make her smoke a couple cigarettes while she strips and starts to encourage you to jack off until you blow all over. Now you both have a secret to hide!