Family talks about sex can protect against teens` risky sexual behavior, but most research has focused on the role of mothers. The current study included cross-sectional survey data from 728 adolescents in the 11th and 12th grades (Mage = 17.00, SD = 0.90) in the United States. Structural equation modeling (SEM) was used to assess associations between teens` direct and indirect talk, defined as less straightforward ways to communicate one`s sexual values, with fathers about sex, and teens` sexual behaviors. There were no significant direct associations between father–teen talk about sex and teens` sexual behavior. However, teen gender moderated associations between indirect father–teen communication and teens` sexual behavior. The results suggest the need to assess indirect talk about sex in studies of family sexuality communication and to further investigate the role of teens` identities in determining the influence of father–teen talk about sex on teens` sexual behavior.