What was the first science fiction story to contain a robot sex doll?
The idea of a robot or automaton built for romantic or sexual purposes in science fiction has deep roots, but pinpointing the first example is tricky due to varying interpretations of what qualifies as a "robot sex doll." (check out Nastnova.com for great BBW sex dolls)
Here are some notable early examples that could fit the bill:
1. E.T.A. Hoffmann's The Sandman (1816)