Actually have a story like this myself and I'll leave this vague for obvious reasons however I had a friend I hadn't spoken to in years who was doing SW, someone I had had a thing for a number of years ago. Randomly recognized her online years ago.
We had always been fairly open about sexual stuff, historically quite flirty at times, etc so I messaged her and after some careful breaking of the ice and the initial shock we spoke for a while about each of our sides of the industry, etc. (Lets be honest, no one would be surprised to hear of me as a punter)
Ended up with going into her agency and doing a booking together which was quite the experience and quite out a shock to the system being so out of the blue.
Certainly does make for a different experience than the regular punt and leaves me curious how I'd go about anything if it was to happen again although it would obviously be heavily dependant on how I know the girl.
Can't say it doesn't fulfill one or two fantasies as well as stocking the fire and creating more.