Pham Michael N, Shackelford Todd K, Sela Yael, Welling Lisa Lm
Department of Psychology, Oakland University, Rochester, MI, USA.
Evol Psychol. 2013 Jun 6;11(2):405-14. doi: 10.1177/147470491301100210.
We secured data from 243 men in committed, sexual, heterosexual relationships to test the sperm retention hypothesis of oral sex. We predicted that, among men who perform cunnilingus on their partner, those at greater risk of sperm competition are more likely to perform cunnilingus until their partner achieves orgasm (Prediction 1), and that, among men who ejaculate during penile-vaginal intercourse and whose partner experiences a cunnilingus-assisted orgasm, ejaculation will occur during the brief period in which female orgasm might function to retain sperm (Prediction 2). The results support Prediction 1 but not Prediction 2. We discuss limitations of the current research and discuss how these results may be more consistent with alternative hypotheses regarding female orgasm and oral sex.
我们获取了243名处于忠诚的异性恋性关系中的男性的数据，以检验口交的精子保留假说。我们预测，在对伴侣进行口交的男性中，精子竞争风险更高的男性更有可能进行口交直到伴侣达到高潮（预测1）；并且，在阴茎-阴道性交期间射精且其伴侣经历口交辅助高潮的男性中，射精将发生在女性高潮可能起到保留精子作用的短暂时期内（预测2）。结果支持预测1，但不支持预测2。我们讨论了当前研究的局限性，并探讨了这些结果如何可能与关于女性高潮和口交的替代假说更为一致。
