I’m also looking for a fic. It’s called “Jack/Off”, and the author’s name is One Terrible Writer.
The plot is that Applejack needs money after losing the rodeo competition, and decides to start working at Cherry Jubilee’s “House of Ill Repute”. To her horror, she eventually she gets Rainbow Dash as a customer.
After it disappeared from FimFiction, I haven’t been able to find this fic anywhere else in text form. I **did ** find a dramatic reading of it on youtube, which I’m transcribing, but that would still mean that the paragraph layout is lost forever…