Friendships contribute to positive social outcomes such as the promotion of prosocial behaviors and social well-being and can lead to an overall healthy quality of life. Despite the importance of friendships, little is known about how individuals without disabilities develop and maintain friendships with individuals with intellectual and developmental disabilities. Using a phenomenological research design, the current study explored the lived experiences of 17 adults without disabilities who discussed the development and maintenance of their friendship with an individual with intellectual and developmental disabilities. Semi-structured interviews were conducted and subsequently collaborative, open coding was used to identify codes and themes across participants. Three main themes emerged related to 1) factors that facilitated friendship development; 2) factors that contributed to friendship maintenance; and 3) impacts of the friendship for both individuals with and without intellectual and developmental disabilities. Implications of the results are discussed as well as future directions for research.