Innocent yet curious 18-year-old Riley Jean finds herself alone with her stepbrother, the tension between them palpable. She's always admired his toned physique, and today, clad in a tiny bikini, she decides to tease him. He watches, mesmerized, as she oils up her tanned skin, her hands lingering on her perky breasts and smooth pussy. Unable to control his desire, he approaches her, his hard cock tenting his shorts. Riley, shocked but excited, tentatively touches it, gasping at its size. Their first time together is a blur of passionate kisses, Riley's tight pussy stretching to accommodate her stepbro's thickness, and both siblings discovering the depths of their shared fetish.