My sister lives at home with me and she's always been a bit of a brat. One day, she comes back from work drunk! She's acting all different than usual... then she flashes her boobs! Panties! I can't help but feel awkward... But my dick is rock hard! Before I know it, I'm inside her and shooting my load! But when I wake up the next morning, she doesn't remember any of our sexual encounter!? Is that how you get away with cheating without getting caught... by just having sex after being blackout drunk?