My parents are out of town this week so me and my sister are staying home alone. i was gonna work late at work last night but i ended up getting off early and came home. when i got home i saw a strange car in the driveway and when i got inside i heard some strange sounds coming from my parents bedroom. when i peaked in i saw my sister fucking some guy that wasn't her boyfriend, i decided to film it and crept back out of the house with out her knowing. the next day i confronted her, at first she denied it but when i showed her the video she asked what i wanted and i decided to start with a hadndjob and see where i could go from there. my big sis stroked my cock like a pro, i think tomorrow im gonna ask for more!