The increase in cases of premarital pregnancy and cases of submission is very difficult for parents in Desa Gelap to protect their children from deviant sexual behavior. This issue is a point of interest discussed by analysts. The purpose of this study was to find out what types of socialization of sex training for young adults in the elastic target family in the Gelap Village, Laren District, Lamongan Regency. To test this information, his research analyst used George Herbert Mead's role theory. The methodology in this research is qualitative which is a kind of contextual analysis. This research uses a process of observation and in-depth interviews with 6 informants. The validity of the data utilizes a triangulation strategy. The information obtained was investigated using Miles and Huberman's intuitive examination model with three stages, namely information decline, information display, withdrawal/final confirmation. Considering the impact of the examination in the field of socialization of young adult sex training carried out by parents in the Dark Village, the type of primary socialization regarding adolescent sex is separated into three aspects, in particular 1) biological socialization, presenting actual and new changes, things that can be done by children -children 2) socialization of sexual norms and boundaries, showing children there are standards that must be maintained as human beings 3) socialization of social roles and functions, helping children to experience their work as women and men. Barriers experienced by parents to foster free association are the association of children and the use of cell phones.