Sexuality is perceived either as result or prerequisite of love or as working in tandem with love in romantic relationships. Hendrick & Hendrick (2002) proposed a theory and a measure capturing the lay perceptions of the love-sex link. The PLSS (Perceptions of Love and Sex Scale) comprises four themes/subscales, Love is Most Important, Love Comes Before Sex (“love themes”), Sex is Declining, Sex Demonstrates Love (“sex themes”). We examined the validity of PLSS in the Greek context, across two age-groups, young (18-40) and middle adults (41-65), and whether the themes predicted relationship satisfaction and duration. Greek participant (N=631) in romantic relationships responded online to the PLSS and other measures of relationship constructs (e.g., passionate, companionate love, sex, satisfaction). Exploratory and confirmatory factor analyses revealed that the PLSS maintained its fourfold structure. The PLSS sexual themes correlated more strongly with relationship constructs than love themes. Young adult women stated that Sex was Declining less than middle adult ones and reported shorter relationships than men. Irrespective of age-group, Sex is (not) Declining, Love is Most Important, and Sex Demonstrates Love predicted satisfaction. Love Comes Before Sex and Sex is Declining predicted duration among young adults. Sex is Declining was the only predictor of duration among middle adults. Our findings suggest that love and sex work in tandem but sexual themes are more important for the Greek population. The study corroborated the validity of PLSS in the Greek context, demonstrating its sensitivity to capture cultural developments in conceptions of intimacy.