Romantic love, sex, and sexual desire are so closely intertwined that it might seem almost impossible to disentangle them. But a team led by Gian Gonzaga believes it has done just that. Studies have found that different body gestures are associated with romantic love and sexual desire.
As you would expect, reports of romantic love correlated positively with gestures that correspond to romantic love (r=.26), and reports of sexual desire correlated positively with gestures associated with sexual desire (r=.30). But there was no significant correlation between love and gestures associated with sexual desire (r=-.01) or between sexual desire and gestures that correspond to romantic love (r=.06).
In other words, love and sex are not directly correlated. Maybe not a surprise...but the difference is significant. See graphs in article.