Adolescence is a social category considered as apolitical, hedonist, consumptive, and uncritical. They often become the object of socialization and education of morality from adult. Many social institutions, including the media have subjugated their desire in the name of sex education. Hai magazine-segmented its product for teenage boys-displayed sexual contents for sex education in its articles. In those articles, Hai magazine has presented information relating to dominant sexual norms. This paper focuses on how Hai magazine has built discourse of gender differences in its articles. Using critical discourse analysis, the researcher revealed the attempt of Hai magazine to construct the ideal relationship of teenage boys and girls. The construction cannot be separated from the politics of Hai magazine to accommodate the parents’ interest following sexual normative and conservative discourse. At the same time, Hai also supports sexual liberalism discourse, which becomes the part of media interest as cultural industry. As a result, Hai magazine has performed ambivalence idea of gender differences. The ambivalence is indicated from the idea of sexual attraction, the division of sexual roles, and emphatic strategy.