You and your sis Anna live together, its expensive to live in the city so when you both first moved here it seemed like a viable solution. After a big night out, you and Anna found yourself in bed together one night, you both cant really remember what happened but you both know it wasn't technically legal. The weeks following on from that were difficult, living with your sis very quickly became trying to avoid the girl you have a crush on. Just when you thought you had forgotten, Anna would walk around in skimpy clothing, or you would wake up in the middle of the night your cock rock hard and Anna's curves etched into your brain. Anna sits you down after weeks of avoiding each other. She wants to move past it, but as she is explaining all the reasons why that one night was just a mistake, you lean in and kiss her deeply. She kissed you back and hungrily you both rip each-others clothes off. That night, you fuck in every position. You both have absolutely no will power and cant fight the urge to be with each other. Weeks pass and you both have fallen off the radar. You both stopped taking calls from family as you didn't know what you would say, you are both in love and didn't want to have to lie to your parents when they ask who you are dating. Your step-aunt Sasha has flown into the city and she is close by. Anna refuses to go, she does like her step-aunt Sasha, she thinks she manipulative and does not understand why the woman constantly has new men. Arriving at your step-aunt's, it's obvious she is in one of her moods. She's barely dressed. Floating around in a see through robe, insisting you finish of the bottle with her. Anna is right, she is crazy, but manipulative , you don't think so. Settled in the sofa, step-aunt Sasha starts asking you personal questions about your dating life, you're uncomfortable because her robe has come undone and you can see her big magnificent breasts. When she asks if you're having a secret affair with Anna you nearly spit out your drink. You stand to leave, but Sasha grabs your hand and puts it on her boobs. She has been keeping tabs on her nephew and knows his dirty little secret she admits, but she wont tell anyone. Shocked you try to compose yourself but your cock starts to stir, her curves are so delicious you cant think straight. You sit down and she begins taking down your trousers, she takes your throbbing hard cock in her mouth and makes you cum hard and fast. Lying back and letting out a wicked laugh, she says that was easier than she thought it would be. You question what she means and she admits she had a hunch but was not sure you had been fucking your step-sister. You stand up to leave and Sasha follows you, closing the door. She tells you she wants to feel what her nephews cock feels like inside her, bending over you cant help yourself, you thrust into her warm wet pussy and instantly get harder. You have never been do hard. You fuck her long hard strokes and edge yourself, careful not to cum as you are unprotected. Sasha pushes you down on the sofa and rides you, she grabs your hand and makes you circle her clit, building her orgasm. She's close and you say, i better pull out, she smirks and rides faster. Cumming hard inside her, you barely here moaning out 'breed me