Turns out size does matter: The longer your penis, the better “semen displacement” you’ll achieve when having sex with a woman flush with competing sperm. That’s according to researchers at the State University of New York, who used artificial phalluses (ahem) to test the “scooping” mechanism of the penis’s coronal ridge.
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7. Only one man in 400 is flexible enough to give himself oral pleasure. It’s estimated, however, that all 400 have given it their best shot at some point.
So the next guy who comes to your ER complaining of neck and back pain….
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