The goal of study was to investigate whether exposure to sexual reality television content and Internet pornography is related to sexual self-presentation on social media. Based on a twowave panel survey among 1,765 adolescents aged 13-17, we found that watching sexual reality television content stimulated adolescents to produce and distribute sexual images of themselves on social media. In turn, sexual self-presentation on social media led adolescents to watch sexual reality television content more frequently. These relationships were similar among boys and girls. No reciprocal relationship between exposure to Internet pornography and boys' and girls' sexual self-presentation on social media was found. The results suggest that sexual content in mainstream mass media may affect adolescents' sexually oriented behavior on social media and vice versa. Moreover, adolescents seem to differentiate between types of sexual content (i.e., mainstream versus more explicit sexual content) when incorporating sexual media content in their sexual behavior online.