Adult attachment theory continues to play an important role in explaining pathology within couples. Pornography is becoming more and more pervasive since the inception of the internet. This study looked at the relationship between insecure attachment, accessibility, responsiveness, and engagement with frequency of male pornography use. Little is known about pornography use and its impact on couple dynamics. This study specifically looked at pornography use predicting insecure attachment within couples. The sample was taken from the RELATionship Evaluation (RELATE) and consisted of 189 couples. Male pornography use was found to be a predictor of insecure attachment and low levels of responsiveness in him. The female partner's assessment of her male partner's low engagement, responsiveness, and accessibility in their relationship was predicted by his pornography use. These findings may inform therapists of the possibilities for direction in therapy when a couple is struggling with insecure attachment development.