Jesus Grand ... high school health class:
The cervix is the opening to the womb, it dilates open during labor (kind of, vaguely, like the way your pupil dilates open in less light?)
And since we're in Health class ... word to the wise, Grand, remember to you wash your hands with hot soap and water before poking around up there with your fingers, seriously. More women get vaginal infections because they don't know to tell their men to wash their hands BEFORE sex.
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The cervix is the opening to the womb, it dilates open during labor (kind of, vaguely, like the way your pupil dilates open in less light?)
And since we're in Health class ... word to the wise, Grand, remember to you wash your hands with hot soap and water before poking around up there with your fingers, seriously. More women get vaginal infections because they don't know to tell their men to wash their hands BEFORE sex.