Of course, the idea of a female or male robot used for pleasure has been around for a while in science fiction. In her 1895 story A Wife Manufactured To Order, Alice W. Fuller gives this description:
"Now, young man, what can I do for you? Want a life-companion, a pleasant one? Man of means, no doubt, and can enjoy yourself; a little fun now and then with the boys and no harm at all -- none in the least... Now, sir, I can get you up any style you want -- wax, but can't be detected."
"Do you mean to say you manufacture a woman out of wax, who will talk?"
"That's just what I do; you give me the subjects you most enjoy talking upon, and tell me what kind of a looking wife you want, and leave the rest to me, and you will never regret it...
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Illustrating Classic Heinlein With AI
'Stasis, cold sleep, hibernation, hypothermia, reduced metabolism, call it what you will - the logistics-medicine research teams had found a way to stack people like cordwood and use them when needed.'
Deflector Plasma Screen For Drones ala Star Wars
'If the enemy persists in attacking or even intensifies their power, the density of the plasma in space will suddenly increase, causing it to reflect most of the incoming energy like a mirror.'