Using data gathered from a sixty-three item dating and mate-selection questionnaire completed by two hundred and eighty student and nonstudent respondents, this study investigates the differences between what people believe is proper premarital sexual behavior, what they do and what they think others are doing at five stages of dating. It was found that persons are most restrictive in what they believe is proper conduct, more permissive in their reported behavior, and most permissive in their perception of what others are doing. During the early stages of dating, males and females differ widely in their outlook as to what is proper behavior and also in their reported behavior. Other studies which failed to take dating stage into consideration may have missed important gender differences in the early period of dating.