Social networks allow adolescents new ways to interact and explore their sexuality, facilitating the development of sexual and personal identity. However, the online context also can contribute to the development of new forms of online sexual aggressions, such as non-consensual sharing of sexual content (NCS). NCS consists in the forwarding sexually explicit media of a person without their consent, violating the victim's integrity and privacy. There is little knowledge about NCS in Spanish adolescents, so the present study aimed to explore the prevalence of this new form of online sexual violence and possible socio-moral, emotional and behavioral correlates, considering dating experiences and gender differences. A cross-sectional study was conducted with 1027 adolescents (47.3% girls) from Seville and Huelva (Spain). Prevalence results indicated that 14.4% of adolescents were engaged in NCS perpetration. Dating experience was not associated with the involvement in NCS. Boys reported higher prevalences of forwarding pictures (5.9% and 1.6%) and videos (3.1% and 0.6%) of other peers without their consent than girls. Linear regression analyses showed that moral identity was associated with less NCS perpetration. Moral disengagement, sexism, exploratory behaviors and anger regulation were associated with higher levels of NCS. These results describe NCS as an aggressive behavior with relevant moral and ethical implications but also sustained by sexism and inequality. Future prevention programs should incorporate moral development content and provide adolescents with the competencies to explore their sexuality in a healthy and safe way, respecting their own and other people's boundaries.
