The sexual development of adolescent boys is closely tied to masturbation. Erotic fantasies are used to work through conflicts concerning sexuality and gender. These fantasies may be extended, enriched, and socialized through a variety of means, including interactions with peers, various cultural means, and pornography. Adolescents also commonly defend against awareness of these conflicts by denying their significance and conceptualizing them as mere stimulants or concomitants of physiologic arousal. Internet pornography provides a particularly powerful means by which some adolescents can disguise or obliterate the meaning of personal masturbation fantasies and so be spared the anxiety associated with the fantasies and their conflicted meaning.