Pornography has become increasingly prevalent and normalized within society, raising questions about how today’s adolescents might differ in their responses to and attitudes toward pornography compared to earlier generations. This study begins to fill this gap by comparing cross-sectional data from two cohorts of high school students in Sweden in 2004 (n = 4,266, mean age = 18.15, SD = 0.74, 53.9% girls) and 2020–21 (n = 3,256, mean age = 18.20, SD = 0.61, 55.4% girls). Gender-stratified bivariate analyses and logistic regression models were performed to examine the impact of survey year on outcomes. Results reveal an increase in frequent pornography use among both genders and a narrowing of the gender gap in responses and attitudes by 2020–21. Boys reported decreased arousal responses, fewer positive emotional responses, and were less inclined to imitate the behaviors seen in pornography. Girls were less averse to and upset by the pornography they encountered. Both genders became more tolerant of pornography, yet more critical of its purported benefits. Notable gender differences remain, especially with girls being more likely to recognize pornography as degrading and exploitative. These findings underscore the need for educational strategies that foster critical understandings of pornography and its societal impact.