Closeted Masturbation Explodes into Sibling Sex

Bored siblings Michelle and her stepbrother find themselves alone together. As Michelle fingers her wet pussy, her stepbrother catches her in the bathroom. After an argument, they decide to masturbate openly. Michelle takes in her stepbrother's thick, straight cock as he jerks off, soon fantasizing about it inside her. Just as they're about to act, someone enters, forcing them to stop.

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