This study presents the perspective of vulnerable Canadian (Quebecker) adolescents defined as such on account of their numerous experiences with potential or actual fatherhood or exposure to sexually transmitted infection. The interviews allowed youth to talk about their experiences with paternity, their sex lives and their views on sex education. The recurrent themes in their accounts were: (1) a felt inability to face fatherhood; (2) sexual expression (heterosexual) as a means of establishing masculinity; (3) resistance towards condom use; (4) idealized yet difficult love relationships; and (5) a need for dynamic sex education that covers love and eroticism. Based on these analyses, guidelines for sex education are proposed. (Contains 2 tables.)