Popular wisdom and scientific evidence suggest women desire and engage in casual sex less frequently than men; however, theories of gender differences in sexuality are often formulated in light of heterosexual relations. Less is understood about sexual behavior among lesbian and gay people, or individuals in which there is arguably less motivation to pursue sex for reproductive purposes and fewer expectations for people to behave in gender-typical ways. Drawing from scripts theory and pleasure theory, in two studies (N₁ = 465; N₂ = 487) we examined lesbian and gay people’s acceptance of casual sex. We asked participants who had been propositioned for casual sex whether they accepted the offer and to rate their perceptions of the proposer’s sexual capabilities and sexual orientation. They also reported on their awareness of stigma surrounding casual sex. We found a gender difference in acceptance: Gay men were more likely than lesbian women to have accepted a casual sex offer from other gay/lesbian people, and this difference was mediated by participants’ stigma awareness. We also found the proposer’s sexual orientation played a role in people’s acceptance. Lesbian women and gay men were equally likely to accept offers from bisexual proposers but expressed different acceptance rates with “straight-but-curious” proposers, which was mediated by expected pleasure. We discuss dynamics within lesbian and gay communities and implications for studying theories of sexual behavior and gender differences beyond heterosexual contexts.

大众智慧和科学证据表明，女性渴望和从事随意性行为的频率低于男性；然而，性行为中的性别差异理论往往是根据异性恋关系制定的。对女同性恋和男同性恋者的性行为了解较少，或者对于出于生殖目的追求性行为的动机可以说较少，并且人们对以性别典型方式行事的期望较低的个人的性行为了解较少。借鉴脚本理论和愉悦理论，在两项研究中 ( N ₁ = 465; N ₂= 487）我们检查了男女同性恋者对随意性行为的接受程度。我们询问了被提议进行随意性行为的参与者是否接受了提议，并对他们对提议者的性能力和性取向的看法进行了评价。他们还报告了他们对随意性行为的耻辱感的认识。我们发现在接受方面存在性别差异：男同性恋者比女同性恋者更可能接受其他男同性恋/女同性恋者的随意性行为，而这种差异是由参与者的耻辱意识介导的。我们还发现，提议者的性取向对人们的接受起到了作用。女同性恋和男同性恋同样有可能接受双性恋求婚者的提议，但对“异性恋但好奇”的求婚者表达了不同的接受率，这是由预期的快乐介导的。