Unexpectedly stumbling upon my sister Sophia Locke in the shower

Accidently stumbled upon my step-sis Sophia Locke in the shower, igniting a forbidden encounter. Her natural, bouncy tits and firm ass captivated me. As things escalated, her skilled blowjob and ass clapping left me breathless. This taboo encounter with my step-sis, all while my mom was nearby, was exhilarating.