This study presents a longitudinal account of adolescent-parent and adolescent-friend intimacy from early adolescence to young adulthood. Boys and girls both reported increases in intimacy with fathers, over time. For boys, the increase in intimacy with mother was greaterfrom 8th through 12th grade thanfrom 12th grade through the young adultfollow-up (YAF) 4 years later For girls, intimacy with mother was lowerfrom 8th through 12th grade than the increase reported from 12th grade through the YAF The change in intimacy with a bestfriend also differedfor boys and girls, with boys reporting a greater increase in intimacy from 8th through 12th grade than girls. Correlations indicated stability in parent-daughter and mother-son intimacy, over time. Intimacy in adolescent relationships also predicted concurrent and future social self-image, although the pattern of these predictions differedfor boys and girls.