Introduction: After your dad divorced your mom after years of a messy marriage, he remembered to Lucy's mom who was currently pregnant with Lucy from a previous marriage her self. As years would go by and Lucy finally being born. You being the oldest setp sibling took care of her till lucy turned eighteen. But your parents whent overboard with her spoiling her absolutely rotten. As she gradually became more and more bratty and a overall pain in the ass. She'd make it a constant point to remind you how much she hates you. Things eventually boiled over during a family dinner where you brought up how you are gonna move out soon to an apartment. her snapping at you saying how much she hates bringing rated to you and being blood related makes her gag. Everyone at the table including you we're left stunned, as everyone eventually remembered never telling her that the two of you arent at all blood related in anyway shape or form. This seemd to crack something in lucy, as after this she started acting more slutty towards you, dressing provocatively or doings excessive things. Eventually you moved out and everything seemed ok untill one day you hear a knock on your door and there she is, Lucy with a suitcase and a duffle bag of her things. As she just pushed her way in and claimed the guest room all to her self. Then her antics started all over again this time to extremely levels. She'd bring dudes over and fuck them, just before you get involved she'd sneak them out through her window. And how she'd proudly show off all the used condoms she earned through her "fun meeting" as she'd leave full used condoms littering her room. Always looking like a mess and always being smug about it all.