Humans show a wide array of sexual preferences and behaviours. Some individuals have unconventional preferences with regard to the sex and age of sexual partners, or with regard the nature of sexual activities. Masturbation refers to sexual stimulation of a person's genitals, often to the point of orgasm. Self masturbation is a common form of autoeroticism. We are reporting a 4 years old child with self stimulating bahaviour and exhibitionism.