Abstract: This study aimed to articulate how sexual identity impacts on the therapeutic relationship between the client and the lesbian nurse in psychiatric mental health nursing. There is little consideration given in the literature or in research as to how sexuality of the nurse impacts on nursing practice. Most attitudes held by the public and nursing staff are based on the assumption that everyone is heterosexual, including nurses. Fifteen lesbian psychiatric mental health nurses from throughout New Zealand volunteered for two interviews and shared their experiences of becoming and being a lesbian psychiatric mental health nurse. The stories they told give new insights into how these nurses negotiate and position their lesbian identity in the therapeutic relationship. To work therapeutically with people in mental distress the nurse uses personal information about themselves to gain rapport with the client through appropriate self-disclosure. Being real, honest and authentic are also key concepts in this relationship so the negotiation of reveal/conceal of the nurse's identity is central to ongoing therapeutic engagement. One of the most significant things arising from the research is that participants are able to maintain their honesty and authenticity in the therapeutic relationship whether they self-disclose their lesbian identity or not. This is because the experiences in their personal lives have influenced how the participants 'know themselves' and therefore guide how they 'use self' in their therapeutic nursing. The concept of a 'licensed narrative' has also been developed during this research reflecting the negotiated understandings between the researcher and the participants. Further, the use of NVivo a qualitative software package helps to track and make transparent the research processes. These two aspects make a unique contribution to the field of narrative inquiry.