Male sexual functioning is a prerequisite for conception and consequently for reproduction and is thus a crucial mechanism from an evolutionary and social perspective. Previous studies reported better sexual functioning in coupled compared to single individuals. However, it is not clear whether sexual functioning increases or decreases with a short-term casual sexual strategy, which is another possibility, along with a long-term strategy. Furthermore, sexual orientation may represent yet another mating strategy that may influence sexual functioning. Here, we aimed to test the possible associations between male sexual functioning and sexual strategies, as measured through sociosexuality, relationship status, and sexual orientation. We hypothesize that due to its relationship with the evolved motivation of mate acquisition and mate retention, both stable relationships and sociosexuality would be positively associated with male sexual functioning. We did not expect significant differences in sexual functioning among men with different sexual orientations. We sampled 427 healthy men of different sexual orientations (203 heterosexuals, 77 bisexuals, and 147 gay men) who completed the Male Sexual Function Index (MSFI) and its subscales of desire, arousal, erection, orgasm, and satisfaction; the Sociosexual Orientation Inventory-Revised; and sociodemographic questions. A multivariate general linear model showed that, compared to single individuals, partnered individuals reported greater MSFI-arousal, MSFI-erection, MSFI-orgasm, and MSFI-satisfaction. Sociosexuality and sexual orientation only weakly predicted MSFI domains. Male sexual functioning thus seems to be moderately associated with a long-term mating strategy and can thus serve for relationship maintenance rather than for acquiring new partners.

男性性功能是受孕的先决条件，因此是生殖的先决条件，因此从进化和社会的角度来看，它是一个重要的机制。以前的研究报告称，与单身个体相比，情侣的性功能更好。然而，目前尚不清楚短期随意的性策略是否会增加或减少性功能，这是另一种可能性，以及长期策略。此外，性取向可能代表另一种可能影响性功能的交配策略。在这里，我们旨在测试男性性功能和性策略之间可能存在的关联，通过社会性取向、关系状况和性取向来衡量。我们假设，由于它与配偶获取和配偶保留的进化动机有关，稳定的关系和社会性行为都与男性性功能呈正相关。我们预计不同性取向的男性在性功能上没有显著差异。我们抽样了 427 名不同性取向的健康男性 （203 名异性恋者、77 名双性恋者和 147 名男同性恋者），他们完成了男性性功能指数 （MSFI） 及其欲望、唤醒、勃起、性高潮和满意度分量表;社会性取向量表 - 修订版;和社会人口学问题。多变量一般线性模型显示，与单个个体相比，伴侣个体报告了更高的 MSFI 唤醒、MSFI 勃起、MSFI 性高潮和 MSFI 满意度。社会性取向和性取向仅弱地预测了 MSFI 领域。 因此，男性的性功能似乎与长期交配策略有适度的相关性，因此可以用于维持关系而不是获得新的伴侣。