Vaginal canal
From Voyeurweb's Wiki about Sex
The vagina is a fibromusculo-membranous sheath connecting the uterine cavity with the exterior at the vulva. It constitutes the excretory channel for the uterine secretion & menstrual blood. It is channel used for copulation and forms the birth canal.
This is the warm, dark, moist tube a dick, finger, vibrator or anything else you insert into a vagina ends up going into.
