Few quantitative studies of sexual behavior appeared prior to Kinsey, Pomeroy and Martin's Sexual Behavior in the Human Male (1948) and Kinsey, Pomeroy, Martin and Gebhard's Sexual Behavior in the Human Female (1953). Sociologists and anthropologists were pleased that Kinsey, a zoologist, related variables such as age, marital status, education, occupation, rural-urban and religious background to sexual behavior. Some were disappointed, however, that crosscultural variations were not investigated. Ford and Beach's (1951) study responded to this need. Collating materials from the Human Relations Area Files, they described cultural differences in sexual behavior. Unfortunately, most of the anthropological field reports in the Files are limited to qualitative descriptions of sexual attitudes and scattered impressions of behavior. Cross-cultural quantitative studies providing data comparable to those which Kinsey presented for the American male and female are still rare. This paper is an attempt to specify some of the influences of culture and society upon sexual behavior by studying individuals who changed their cultural environment through migration during the sexually active part of their lives. Before and after migration, biological and basic personality factors remain relatively constant while the normative environment varies. We will see how the sexual behavior of an immigrant population changes in the direction of that of the native receiving population. It will be argued that the convergence comes about through the impact of the norms of the new culture on social sexual behaviors such as petting and intercourse and that the non-social sexual behaviors of masturbation and spontaneous orgasms are indirectly influenced. Zetterberg's postulates (1957) of evaluative and normative compliances lead us to expect that this would occur. The postulate of evaluative compliance states In an action system any actor has a tendency to develop attitudes that are synonymous with uniform evaluations in the system. The postulate of normative