Counselors and other mental health professionals lack training on healthy sexuality and sexual identity development (SID). To begin to construct a comprehensive model of SID that can be used in counseling and counselor education, I conducted an exploratory study utilizing a grounded theory approach to collect and analyze SID stories from a purposive sample of eight adults from the Dallas-Fort Worth, Texas area: four male and four female; seven White Caucasian-American and one Asian American; and self-identified as two gay, one lesbian, three heterosexual, and two sexually fluid. Participants elucidated a process model of the sexual-self that incorporated biological, psychological, social, cultural, and spiritual factors. Emergent themes included discovering, distinguishing, placing boundaries around, differentiating, and integrating the sexual-self. This preliminary model advanced a more holistic understanding of SID that counselors and other mental health professionals, educators, and researchers may find useful within their respective disciplines.