Previous research has found that women at peak fertility show greater interest in extra-pair sex. However, recent replications have failed to detect this effect. In this study, we add to this ongoing debate by testing whether sociosexuality (the willingness to have sex in the absence of commitment) is higher in women who are at peak fertility. A sample of normally ovulating women (N = 773) completed a measure of sociosexuality and had their current fertility status estimated using the backward counting method. Contrary to our hypothesis, current fertility was unrelated to sociosexual attitudes and desires, even when relationship status was included as a moderator. These findings raise further doubts about the association between fertility and desire for extra-pair sex.

先前的研究发现，生育高峰期的女性对异地性行为表现出更大的兴趣。然而，最近的复制未能检测到这种效应。在这项研究中，我们通过测试处于生育高峰期的女性的社会性行为（在没有承诺的情况下发生性行为的意愿）是否更高来补充这一正在进行的争论。正常排卵女性样本（N = 773）完成了社会性行为测量，并使用向后计数方法估计了她们当前的生育状况。与我们的假设相反，当前的生育率与社会性态度和欲望无关，即使将关系状态作为调节因素。这些发现进一步引发了人们对生育能力与异性性行为欲望之间关系的怀疑。