This longitudinal follow-up studies a group of 90 girls and boys from initial adolescence into emerging adulthood. The relationships between these young people and their parents are analyzed over a 10-year period, while considering possible gender differences. The results indicate that the levels of communication and affection perceived by these young people diminish during emerging adulthood; however, their perceived adaptability remains and cohesion increases as the frequency of conflicts decreases. In terms of gender differences, boys and girls show similar developmental pathways. On the other hand, the results indicated a high relative stability for the scores of the subjects. This work underlines the importance of further studies about family relationships during emerging adulthood, especially from a longitudinal perspective.