Clinicians and researchers question how pornography might be impacting the people who view it and their partners. In particular, does pornography link to couples attachment and levels of aggression? Using data collected by the RELATE institute a sophisticated structural equation model was set up to answer this question. In particular, an actor partner interdependence model was used to analyze the relationship among male pornography use, insecure attachment behaviors, relational aggression, and physical aggression in 1630 heterosexual couples. Results indicate higher reports of male pornography use are associated with higher reports of insecure attachment behaviors, relational aggression, and physical aggression. Differences between male and female results, including a direct relationship between male pornography use and male and female insecure attachment behaviors as well as female physical aggression, are discussed. Findings add to current literature on the impact pornography has on individuals and their partners. Implications for clinicians are discussed.