Seven hundred and two (346 non-Asian, 356 Asian) undergraduate volunteers were assessed in a confidential laboratory setting on levels of interpersonal sexual behavior (e.g., petting, intercourse), intrapersonal sexual behavior (e.g., fantasy, masturbation), and sociosexual restrictiveness (e.g., lifetime number of partners, number of "one-night stands"). The purpose was to examine possible differences in sexual behavior between Asian and non-Asian Canadian university students and to determine the association between North American residency and the sexual behavior of Asians. The role of gender on sexual behavior both across and within ethnic groups was also examined. Statistical analyses revealed that Asian students were significantly more conservative than non-Asian students on all measures of interpersonal sexual behavior and sociosexual restrictiveness. Significant differences were also noted between Asian and non-Asian students on most measures of intrapersonal sexual behavior. With the exception of two fantasy items, length of residency in Canada was unrelated to interpersonal sexual behavior, intrapersonal sexual behavior, or sociosexual restrictiveness among Asians. Although gender differences were substantial for intrapersonal sexual behaviors such as fantasy and masturbation, no significant gender differences were found for measures of interpersonal sexual experience, with the exception of reported number of one-night stands.