Callisto being seduced by Zeus/Jupiter in disguise was also a popular subject, usually called "Jupiter and Callisto"; it was the clearest common subject with lesbian lovers from classical mythology. The two lovers are usually shown happily embracing in a bower. The violent rape described by Ovid as following Callisto's realization of what is going on is rarely shown. In versions before about 1700 Callisto may show some doubt about what is going on, as in the versions by Rubens. It was especially popular in the 18th century, when depictions were increasingly erotic; François Boucher painted several versions.