Actually, it has nothing to do with sexwork. I'd suggest it has more to do with her sense of humour than anything else. I like her already.
It's a quote from the movie "The Invention of Lying" by Ricky Gervais. The entire premise of the movie is that no one in the history of humanity has ever had the ability to say, or think, anything that is not true, & people have few filters. They just say what they think, & tell it like it is. Their movies are simply 'readers' discussing some of the notable events from history that happened in a particular century or year. The hero, played by Ricky Gervais goes to pick up his blind date, Jennifer Garner, & she keeps him waiting at the door for longer than expected, & she appears slightly disheveled & flushed. Her first words to him as she opens the door are...