I accidentally stumble upon my step-sister in the restroom and discover her stunning derriere

As I sauntered into the restroom, I unintentionally stumbled upon my step-sister. She was indulging in a golden shower, her lithe form dripping with water. Her alluring rear was on full display, a sight that left me utterly spellbound. I've always been captivated by her voluptuous derriere, and this was an opportunity to feast my eyes on it up close. Despite being a mature woman, she exudes the allure of a youthful vixen, her blonde tresses cascading down her back. The sight of her, wet and vulnerable, was too much to resist. I yearned to reach out and caress her glistening skin, to explore the contours of her flawless form. But I held back, opting instead to capture her allure on camera, a secret fetish that only I know. Each day, I indulge in watching her on the hidden cam, a tantalizing tease that leaves me yearning for more.