This study focused on natural mentoring relationships between nonparental adults and African American adolescent mothers. Data were collected from 93 adolescent mothers over 5 time points, starting in the adolescent mothers' senior year of high school and ending 5 years after high school. We found that having a natural mentor was related to fewer depressive symptoms and fewer anxiety symptoms over time. Natural mentor presence also modified the relationship between stress and mental health problems over time. Facilitating these natural mentoring relationships between adolescent mothers and nonparental adults may be a useful strategy for promoting healthy development within this population.