There are some things that a step sister can do that are just unforgivable and need to be punished. And drinking your last drink on a Sunday is one of them. Her step brother likes his drink so when he came home to an empty fridge, he was pissed. At first he wanted to kick the crap out of his stepsister - but then he remembered an add - and he knew how to make his sister pay! Two hours later, he was holding a camera inches from his step sister's pussy as his little stepsister got grudge-fucked by an old pervert. All this for a drink that only costs a couple bucks - but hell, it was Sunday and the stores were closed...