This is a very positive and informative article about fisting, and misconceptions about fisting. I seriously suggest you read it. Even if you don’t have a vagina, and have no intention of having a sexual relationship with somebody who has a vagina, it’s still a very interesting article.
Vaginal fisting is a favorite sexual activity of my girlfriend and I. No, her vagina is not “loose” or abnormal, nor does it hurt her. She actually has the most amazing orgasms from it.