Matteo S, Rissman E F
Horm Behav. 1984 Sep;18(3):249-55. doi: 10.1016/0018-506x(84)90014-x.
Daily sexual activity of sexually active lesbian couples was recorded over a 14-week period. Significant peaks in sexual encounters and orgasms were found during the midcycle portion of the menstrual cycle. These results demonstrate a pattern of increased midcycle sexual activity independent of interactions with males, type of contraceptive method, or fear of pregnancy.
在14周的时间里记录了性活跃的女同性恋伴侣的日常性行为。在月经周期的中期发现性接触和性高潮有显著高峰。这些结果表明，在月经周期中期，性行为增加的模式与与男性的互动、避孕方法类型或对怀孕的恐惧无关。
