Puberty, genital development, menstruation, and erections.
While minors are used to illustrate physical development and hygiene, explicit reproductive acts (full penetration) are demonstrated exclusively by an adult couple. Reception and Controversy sexuele voorlichting 1991 belgiummp4l fixed link
Detailed descriptions and cast information can be found on its IMDb page . Puberty, genital development, menstruation, and erections