Interestingly, the term "Kit-Cat" has a formal definition in the art world. A Kit-Cat portrait is a specific canvas size (36 x 28 inches) that is less than half-length but always includes the hands.
While the specific phrase "Kitkat Club Portrait Extreme 9 Schnuckel 53" appears to reference a specific set of niche or private digital media—likely from a photography series or a collector's set associated with the Berlin fetish scene—it is deeply tied to the culture of the world-famous KitKatClub in Berlin. The club is renowned for its sex-positive atmosphere Kitkat Club Portrait Extreme 9 Schnuckel 53
“What do you want?” she whispered.
The “Extreme 9 Schnuckel 53” file would have been: Interestingly, the term "Kit-Cat" has a formal definition