In the heart of Brazil, a religious sister finds herself alone with her taboo thoughts. She sneaks into the bathroom, locking the door behind her. Her fingers trace the outline of her plump ass, slipping beneath her panties to stroke her wet pussy. She imagines her brother's cock, thick and hard, replacing her fingers, filling her completely. Her moans echo in the tiny room as she brings herself closer to the edge, until a creaking floorboard outside threatens to expose her secret pleasure.