In the throes of summer boredom, a step-sister and brother find solace in each other's company, albeit unexpectedly. While he strokes his throbbing cock, she fingers her dripping pussy, their shared lust palpable. Their game of cat and mouse reaches a boil when she challenges him, "Fuck me like you mean it." The room fills with their moans as he delivers, her tight cunt milking his cock for every last drop.