"Cum with me if you want to live!". TM 2013 humanodon industries inc. On a less jocular note, given the state of robotic prosthesis, how far are scientists from recreating natural human movement? It seems like they're a long way off from being able to produce natural motion in a robotic limb, much less a robotic body. Sure, there are those that will settle for far less than a close approximation of sex, but I doubt many would be eager to be reminded that they're congressing with an automoton during the deed.
Well I feel this video (released this year) demonstrates that researchers are making considerable progress on recreating natural human movement. Of course, it will be a gradual development. The first "sex robots" or robots that we have sex with will not be "as human-like" as the robots we have sex with in the 2030s.