Incestuous siblings' taboo masturbation session cut short

A bored sister and brother find themselves alone together, each retreating to their rooms to masturbate. Michelle fingers her wet pussy, her big ass grinding against the bed, while her brother strokes his thick, straight cock. Caught naked in the bathroom, they argue, but later reunite, masturbating openly in front of each other. Michelle's lust grows as she watches her brother's cock, imagining it inside her. Just as they're about to act, someone enters, forcing them to abruptly end their erotic encounter.

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