Objectives: The study explored characteristics associated with the self-assessed effects of pornography use on one’s personal sex life. Methods: Data were collected in a probability-based sample of Norwegian adults (n = 4,160). Results: Most participants (41.3%) did not believe that pornography affected their sex life. More participants reported positive (33.2%) than mixed/negative (25.5%) effects of pornography use. Sociodemographic and sexual characteristics that predicted these self-assessments were examined. Among participants in a steady relationship, emotional intimacy and relationship satisfaction were unrelated to the self-assessed effects. Conclusions: The current study findings add to scant literature about the self-assessed effects of pornography usage.