In this adult sibling role-play, a sister exactly seven years younger than her adult brother is usually treated like a child by the family. When their parents leave for several days and ask her to look after the house, she embraces the responsibility, does the chores, and fusses over her brother like a mother. She also wears outfits that expose her cleavage and panties. When he gets hard at the sight, she teasingly calls him needy while eagerly devouring his erect cock.