Basically, the vestibule is the lobby leading to the vagina, which is inside your body.
The actress kept her adult film job a secret from her family but when she began to get acting parts in German films, a reporter unearthed her salacious past which Kekili condemned as a smear campaign.
And, no, pee doesn't come out of the vaginal opening! She later made the surprising change from adult actress to in 2012.
Friday marked the first time that Greene had worked at the school and it will likely be her last, since the teen videotaped the encounter and reportedly showed teammates and friends the footage.
That's the message that Corey passes along to other transgender kids who might see the video: someday it will get better and you can live your best life as your true self, just like Corey is doing now.
Davis says that many young women think the clitoris is actually the urethra, but don't be fooled.
At only 15, the now 49-year-old to land herself in Penthouse magazine and a slew of adult movies.
The Associated Press contributed to this report.