Which genre mentioned the first "pleasure" (aka sex slave/sex toy) humanoid robot/android?
Was it Sci-Fi (the earliest example I can think of is "Tripping the Rift", but i'm certain there were earlier cases)? Or was it Pr0n (The earliest example I know of is from 1971 based on brief googling).
Based on one of the corollaries to Rule 34, I'm going to suppose that it was NOT sci-fi, but I'm hoping to be pleasantly surprised.
To clarify based on comments:
Explicitly using the words "sex robot" is not required, but a reasonable average reader/watcher must clearly understand from the work that this was the primary purpose of said robot.
Doesn't matter if it was movie or book
Gender of the robot is irrelevant
