Step sisters can run the gauntlet. Some are nice and sweet. Others are mean and rotten. But then there is the special kind of crazy that only comes once a girl not related to you starts living with you. Her hormones go all crazy and she needs to fuck but she's got no good options so her step brother will make do. Homie here had that happen to him. He just wants a normal relationship with his step sister, but the mink ain't having that. She wants the cock. Their relationship established via their parent's marriage is meaningless to her. Step brother doesn't want to for a variety of reasons. The biggest one being that their mom and dad are downstairs and could walk in at any minute. Step sister gives no fucks and she's going to get that dick. Fucking your step sister while worried that your parents might bust in before you bust a nut…in the words of some chick named Paris, “That's hot.”