The social and political climate of sex education over the last two decades has dramatically changed, with parents now being encouraged to work in partnership with professionals. This paper seeks to further the argument that involving parents in their child's sex education does matter and can have an impact on their child's future sexual health. It discusses the reality of parents' roles and skills in providing sex education within the family. In particular, the discussion explores myths parents associate with sex education, involving fathers in provision, siblings as peer educators, health professionals' attitudes towards involving parents, and school partnerships. The author calls for professionals to involve parents alongside other sources of sex education in health and educational strategies to address sexual health issues and improve sex education. Otherwise future generations of children will experience a closed cultural attitude towards sexual matters and we will not achieve lower teenage pregnancy rates or view sex education positively. (Contains 1 table.)