Autoerotism Exercise: Subjects were visited at the location they have chosen to take the photographs. The camera was mounted on a tripod and synchronized to work remotely: the camera shot photographs at fixed intervals of time. Subjects were left totally alone with the camera and thus were able to direct, select wardrobe and choose the duration of their sessions. They also had the choice to stop the sequence and restart it as many times as they required. When they were finished, the equipment was recovered.