I found this article on robot sex to be rather interesting. The article is safe for work and is not talking about cybernetic porn, but rather about building robots that have male or female characteristics. That is, if you buy a robot, is it a boy or a girl? Robots are getting advanced enough now that it's possible to build one that appears, in behavior or appearance, to be male or female.
I'm including a video clip below from YouTube of a robot named Nexi that is designed to mimic human expressions. You can judge for yourself, is Nexi a boy or a girl?