Rape is as rape does: Epilogue

In my last post, I discussed the findings "National Intimate Partner and Sexual Violence Survey" (NISVS 2010). I compared the figures on rape and sexual violence for men and women over the 12 months previous to the survey, and I promised I'd get back to why I was using the 12-month figures rather than the lifetime figures (which were the figures significantly more emphasized by the CDC in the introduction and press releases and so forth). 

Rape is as rape does, Part 2: Lady Rapist 101

So, how does that even work? Men are bigger and stronger than women, on average. Physically, they generally have the upper hand. And, not to put too fine a point on it, but there are certain anatomical realities to penis-in-vagina sex that require the cooperation, and, presumably, the consent of the male. Right?