Diagnosis and treatment of breast cancer often leads to lower levels of sexual desire, decreased sexual arousal, painful intercourse, and difficulties achieving orgasm, and thus adversely impacts sexual functioning and intimacy. Despite the overwhelming evidence that many couples experience sexual distress following breast cancer, very few interventions have been designed exclusively to address these concerns. The purpose of this study is to develop and evaluate an online psychosexual program geared to the unique needs of couples experiencing sexual distress after breast cancer. This study will utilize a web-based approach, allowing couples to participate in the program from the privacy and comfort of their homes, and providing a resource to couples who may not otherwise be able to readily access support. Accordingly, this project has the potential for widespread positive impact for couples affected by breast cancer.