VNDS-3060 When I open the door, my mom is masturbating

For an adolescent son, his mother is also a familiar member of the opposite sex. I'm usually a strict mother, but when I suddenly open the door, I'm in the middle of masturbation. I'm playing hard with tools such as my fingers and electric machines. "My mother was frustrated ...", my son was surprised and began to help my mother with masturbation .... [* There is some disturbance in the image and sound]