As with other social institutions, marriage has always evolved alongside changes in technology. Electric appliances gave rise to wives pursuing paid work outside the patriarchal burdens of homemaking. The latex condom and other birth control tech offered both partners more choices and provoked society to reckon with the idea that women, too, seek sexual gratification from their relationships. Now, argues economist Marina Adshade, another technology seems poised to radically transform this age-old practice: sex robots. She explains how titillating androids of the future might disentangle our association between sexual intimacy and marriage--and, in doing so, remake our matrimonial unions for the better.