In a vacuous sense of the word, all organs are reproductive organs and you can feasibly claim that your job and apartment are part of your seduction routine, just like Bill Clinton's job and apartment were. But can you somehow delineate "seduction-related" activities from "other" activities and somehow make men and women spend the same amount of effort on "seduction-related", without making "other" an empty set? Try it! I don't think you will succeed. For example, any reasonable delineation would classify work time as non-seduction-related, which instantly skews the ratio towards women.