In this amateur video, a brother and sister, both curious and horny, find themselves alone in the house. They start by tentatively touching themselves, the sister fingering her wet pussy while her brother strokes his growing erection. Their initial hesitation gives way to boldness as they openly masturbate in front of each other, the sister admiring her brother's thick cock. As they're about to take things further, a sudden noise from outside the room breaks the spell, leaving them breathless and frustrated.