Only similar incident I can think of was about a decade and a half ago in the halcyon days of VFM superb Thai girls in the East London/Essex border hinterlands.
My regular was off due to transport issues, Mae, young back then, sexy, sultry voice, jet black silky long hair, incredible oral skills, and I was stupidly horny so just took a blind punt with an EE girl as substitute in the flat.
What a mistake
Afterward the girl asked me, "you normally see Mae right ?"
"Yes", I replied
"Why is she good, what does she do, why do so many guys ask to see her ?"
Her English wasn't that great and at the time I found it too hard to explain in a way that she could understand.
"Comparing her to you is like comparing a patient, considerate, watchful, master artist to a rough, clumsy newbie with the hands and finesse of a drunken bricklayer"
I didn't say that, but that's exactly what the difference in service felt like
I grunted something along the lines of, "too difficult to explain" and then left