As the sun beats down, I find myself in a heated game of cat and mouse with my stepsister. She's a tease, always prancing around in her tiny bikini, her big tits and round ass on full display. Today, she takes it a step further, stripping completely naked in the bedroom, knowing full well I'm just next door. Her big boobs bounce as she dances, her big butt jiggling with each move. She's a sight to behold, and I can't help but wonder what she's up to.