Quick Definition: Mental seduction, as opposed to actual physical sex.
In the world of strippers, escorts, and prostitutes, a mind fuck customer usually refers to men who want the company and seduction of a charming woman mainly (though not exclusively) for her presence of seduction rather than sex. Thus, to be “mind fucked.”
Escorts consider mind fuck customers their best because they are generally older and have more money, while not requiring as much physical activity. In Asian liquor bars, “hostesses” will come drink with lonely but rich business men, offering them their feminine and seductive company. Thus, Mind Fucking exists across cultures as a form of seduction.
He just wanted to be mind fucked–the sex was secondary.