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Consensual unwanted sex (CUS), which occurs when an individual agrees to sexual activity they do not want, remains a common but understudied experience across different ages, genders, and sexual orientations (Nickull et al., 2025; Rubinsky, 2020). Most existing research on CUS focuses on younger women in college (Peterson, 2024), often in dating or casual sexual relationships (Courtice et al., 2021), leaving a significant gap in understanding CUS among adults of varying ages, genders, and relationship lengths. Some studies link CUS to both positive and negative outcomes in relationship quality and sexual satisfaction (Froemming, 2020; Himanen & Gunst, 2024). Participants have also reported posttraumatic stress symptoms (PTSS), including self-blame, hypervigilance, avoidance, and negative changes in mood and thinking (Kern & Peterson, 2021). However, existing studies rarely assess posttraumatic stress disorder (PTSD) in relation to CUS. This dissertation uses the PTSD Checklist (PCL-5; Weathers et al., 2013) according to the criteria of the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition, Text Revision (DSM-5-TR, American Psychiatric Association [APA], 2022) to assess PTSD diagnoses (dx), the severity of each PTSS, and experiences of unrecognized coercion among adults aged 21 and older who report CUS in romantic relationships lasting at least two months. The study compares these outcomes by gender, CUS frequency, and reasons for consent.