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We generated attractiveness contour maps Fig. In turn, vaginal orgasms are associated with higher levels of associated sexual satisfaction Our results support the hypothesis that female mate choice could have driven the evolution of larger penises in humans. Supplementary Material Supporting Information: Click here to view. These correlations were then compiled and a one-sample t test conducted to test whether the mean correlation was significantly different from zero. MakeHuman v0. These parameters can be considered broadly equivalent to a measure of body mass index.