My StepSister wants to be my Sex Doll during Day Long

My step-sister, the beautiful, busty brunette, has always been a bit of a tease, but today she's taking things to a whole new level. She's got her Innocent Teen look on, but her intentions are anything but. She wants me to treat her like my sex doll, all day long. And I'm more than happy to oblige. I'm not going to lie, her big, natural tits and tight, little body are driving me wild. But it's her sweet, little moans and the way she looks at me that really gets me going. We start off slow, with some light foreplay, but it's not long before we're both ready for more. She takes my hard, thick cock like a pro, even though it's her first time. Her tight, little pussy is so wet and warm, it's like a dream. I fuck her hard and deep, just the way she likes it, making her scream my name and beg for more. She's a natural, and she can't get enough. We switch positions, and she starts riding me, her big, juicy tits bouncing all over the place. It's so hot, I can't hold back any longer. I cum so hard, filling her up with my hot, sticky cum. She loves it, and she milks me for every last drop, making sure she gets every bit of it. We spend the rest of the day together, exploring each other's bodies and making new memories. It's a long, hot day, but it's a day I'll never forget.