Self-disclosure and perceived partner responsiveness are two principal components of the intimacy that aims to explain relationship functioning. This theory has been tested in the past but all focused on long-term married couples with Western samples. The current study examines the basic tenets of the process model of intimacy in the context of a fledgling relationship in a non-Western cultural setting. Couples who were in the early stages of a romantic relationship (N= 151) reported their intimacy in two sessions three weeks apart. Between the two sessions, they completed a 21-day diary assessing self-disclosure and perceived partner responsiveness. Dyadic analyses using multilevel modeling provided evidence for the reciprocal links between self-disclosure and perceived responsiveness. Additionally, perceived responsiveness partially mediated the effects of disclosure on increases in intimacy. These findings demonstrated that the current conceptions of the interpersonal model of intimacy generalize across early stages of romantic relationships and across a non-Western cultural context.