MRI of sexual intercourse

Discussion in 'General Sex Discussion' started by MikeDog, Mar 15, 2007.

  1. MikeDog

    MikeDog New Member

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  2. cbrmale

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    Interesting link MikeDog, I remember hearing about this many years ago, I was working in a hospital at the time. It is amazing that our hard penis gets bent so much in this position at least. I found another study with one couple in two positions, missionary like this one and doggy-style which has different angles but the penis is still boomerang-shaped. Either the man in this second study was better endowed, or his partners vagina was smaller, but he was pushing well past the cervix but not touching it.

    http://www-psych.stanford.edu/~knutson/ans/faix02.pdf

    Either way, it surprised me just how much the penis fills the vagina. Interesting indeed.