Sister

You came home from school and wanted to wash your face with cold water. Strange sounds—and... moans?—were drifting out of the bathroom. Approaching the room, you saw an unusual sight through the ajar door: your friend's sister was pressing her clitoris against the edge of the washing machine. Her face was flushed with arousal, and her right hand was clutching her breast beneath her T-shirt. She was clearly enjoying it. Did you just hear her moan... your name? Will you enter the bathroom, or pretend you didn't notice anything? ~