The sexual position most often associated with penile fracture was the ‘doggy style’. http://www.nature.com/ijir/journal/v29/n5/abs/ijir201724a.html …pic.twitter.com/0vfQGsVSzV
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That would seem to be an important thing to know. Commercial aviation kills a lot more people than skydiving but I'm happy to catch a plane.
Relying on self-report data for sexual position, duration, and thrust rate/intensity seems unwise. A shame sex research isn't better funded!
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