Inclusion Criteria:  40-60 years of age; peri-menopausal and have had a menstrual period within the previous twelve months as per the STRAW definition (Harlow et al., 2012); cut-off score of 26 or lower on the Female Sexual Functioning Index, indicating sexual dysfunction (Wiegel et al., 2005); medication stable (e.g., hormone therapy), with no changes in dosing for the previous three months (Green et al., 2019); no psychological treatment to address sexual dysfunction and/or sexual concerns within the previous six months; and speak, read, and write in English to comprehend testing procedures and written materials in treatment  Exclusion Criteria:  participants with psychotic disorders, or current substance and/or alcohol dependence; and participants who are severely depressed/suicidal at time of the intake assessment.