Аннотация:ABSTRACT The present study was designed to investigate theoretical assumptions underlying Zinik's conflict and flexibility models of bisexuality (1985). Of particular interest were potential differences among heterosexual, gay/lesbian, and bisexual individuals on measures of flexibility and sexuality conflict. Participants were recruited from an urban jury pool and from gay, lesbian, and bisexual groups. The final sample included three gender-balanced sexual orientation groups of 46 individuals each. Results failed to support the prediction that bisexual individuals would score higher on flexibility measures than heterosexuals or gay/lesbian individuals. Bisexuals were found to be more conflicted about their sexuality than heterosexuals or gay/lesbian individuals. Other findings both supported and conflicted with the theoretical models, suggesting the need for further research.