In the face of AI exerts repeatedly predicting the rise of sex robots, it's increasingly difficult to insist that such machines strictly belong to a far-off, dystopian future. But some robotics experts predict we'll soon be doing far more than having sexual intercourse with machines. Instead, we'll be making love to them--with all the accompanying romantic feelings. At this week's "Love and Sex with Robots" conference at Goldsmith University in London, David Levy, author of a book on human-robot love, predicted that human-robot marriages would be legal by 2050. Adrian Cheok, computing professor at City University London and director of the Mixed Reality Lab in Singapore, says the prediction is not so farfetched.