Taboo lust in the confines of piety

A brother and sister, isolated and aroused, succumb to their carnal desires. The sister, Michelle, fingers her dripping pussy and plump ass, hoping not to be heard. Her brother barges in, catching her in her vulnerable state. They argue, but later, they decide to masturbate openly, Michelle taking in her brother's enormous cock. As they're about to act on their mutual longing, an intruder forces them to abruptly halt their taboo encounter.

• Unknown