Most discussions of sex and gender development are discussed as science and expressed as a linear progression from birth as one step as biology develops of which the psychosocial self is built upon. Though biology is an important to a person’s being, including any modifications to it for a variety of reasons, it is not controlling of a person’s identity. At the same time, the concept that biology is a material that is malleable of which a person’s gender is constructed. A person can find in their inner psychological being their true self as male or female that may or may not reflect their assignment at birth. Neither of these tell story of life. A person’s sex/gender is a narrative becoming over time from pre-birth through their death. Becoming includes, when permitted, spiritual and cultural aspects in addition to biological, psychological, and social aspects. When understood within such a narrative, a person’s becoming (development) that reflects their identity as a gender-sex.