Sex addiction is not an addiction. It's a skill.
Kudos!
Prostitute or not, sex is sex. Don't stigmatize sex workers. No need for that.
I personally feel that 'prostitute' is a filthy and derogatory word, right up there with the 'N' word- which is basically illegal everywhere now.
A human being doesn't need to be pigeon-holed.
If you had sex with an accountant, you wouldn't go around saying "once with an accountant".
(I am sorry, if this offends some people)