Quick Answer: Masturbation is a form of autoeroticism in which a person sexually stimulates their own genitals for sexual arousal or other sexual pleasure, usually to the point of orgasm. Stimulation may involve the use of hands, everyday objects, sex toys, or more rarely, the mouth. Masturbation may also be performed with a sex partner, either masturbating together or watching the other partner masturbate, known as "mutual masturbation". Masturbation is frequent in both sexes. Various medical and psychological benefits have been attributed to a healthy attitude toward sexual activity in general and to masturbation in particular. Masturbation is considered by clinicians to be a healthy, normal part of sexual enjoyment. Masturbation has been depicted in art since prehistoric times, and is both mentioned and discussed in very early writings. Religions vary in their views of masturbation.