Sister's asleep? Time to stuff her throat with cock

A woman in a black top and patterned pants performs oral sex on a shirtless man lying on a checkered bed. She takes his penis deep into her throat, her tongue visible, while he holds her head or strokes her hair. The man then guides her onto all fours, presenting her bare ass, before she returns to lying down and continuing the blowjob with her eyes open. The setting is a simple bedroom with green walls and a plain bedspread.