As an adult advertising agency owner for 20 years, I heard countless escorts worry about the tightness of their vaginas. Often, they fretted about the treadless tire aspect of their moneymaker giving them away the moment they met the right guy. You didn't address that in your article. Otherwise, it was excellent.
On another subject, I often tell people that the mythology about a hooker with a brain is exactly that (mythology). You're clearly the exception to the rule. I enjoyed reading your article even if I was vividly reminded - and at once repulsed and bored - by the stories of men's weird sex shit.