In long-term relationships, sexual desire discrepancy (SDD) occurs frequently between partners. For many, this discrepancy is persistent and significant, and a source of distress. However, the dynamics of SDD in couples and, specifically, its implications for sexual distress have received scant empirical attention. This study examined the associations between SDD and sexual distress from one day to the next and over a 12-month span, in a community sample of 229 same-sex/gender and mixed-sex/gender couples. Two datasets were collected: A 35-day daily diary and a 12-month longitudinal survey. In both, dyadic sexual desire and sexual distress were measured, and SDD was calculated as the absolute value of the difference in sexual desire between partners. Directional associations between SDD at one time point and sexual distress at the next time point were assessed using multilevel, 2-pane autoregressive cross-lagged models, controlling for within-variable changes, dependencies between partners, and partner age. Results were consistent with the study\'s hypotheses: Couples\' SDD on one day predicted sexual distress on the next day. Similarly, SDD at baseline predicted sexual distress 12 months later. Participant gender, partner gender, and couple type did not significantly moderate these associations, nor did differentiating partners based on higher and lower average sexual desire. The reverse associations (i.e., sexual distress predicting SDD) were non-significant. The associations\' directionality and the fact that they remained significant over days and months were consistent with the proposal that SDD is a precursor of sexual distress. The present study provides support for dyadic conceptualizations of sexual desire. Clinically, findings suggest that therapeutic approaches should address issues with sexual desire and sexual distress by focusing not on the individual, but on the couple.

Background and Objectives: Little is known how coping self-efficacy (CSE) interacts with coping in dyad everyday life. The present study examined the moderating role of daily CSE in the relationship between coping and the next-day positive (PA) or negative (NA) affect in patient-caregiver dyads, following hematopoietic stem cell transplantation. Design: This intensive longitudinal study was conducted during the first 28 days after post-transplant discharge. Methods: Patients and their caregivers (N = 200) maintained daily diaries on CSE, coping strategies, and affect. Results: Daily CSE moderated daily coping-affect relationship: Positive emotion-focused coping increased PA in patients with higher than usual emotion-related CSE, whereas a buffering effect was found at lower than usual emotion-related CSE. A positive association between negative emotion-focused coping and NA in both patients and caregivers was stronger among those with lower than usual levels of emotion-related CSE. Higher than usual instrumental coping reduced NA in patients whose caregivers had higher than usual problem-related CSE, but increased NA for those whose caregivers had lower than usual instrumental CSE. Conclusion: The findings show that daily CSE contributes to the effectiveness of daily coping within dyad, confirming its significance in effective adaptation and the role in the dyadic coping process.

Recent studies show that sexual approach (SA) motives, i.e., having sex to achieve a positive state such as sexual pleasure, are associated with higher sexual and relationship satisfaction. However, mechanisms linking SA motives to these outcomes are poorly understood, and the important distinction between SA motives that are self-directed (e.g., self-gratification) and other-directed (e.g., pleasing one\'s partner) has received little empirical attention, particularly in the everyday context of couples\' sexuality. The present study focused, at an event level, on the associations between self-directed and other-directed SA motives, and sexual satisfaction and perceived partner responsiveness (PPR, an aspect of relationship intimacy). We also examined the mediating role of the couple\'s sexual behavior in these associations. Data were collected over a month-long daily diary study involving 35 newlywed heterosexual couples and analyzed using the Actor-Partner Interdependence Model. Results showed that men and women\'s self-directed SA motives were associated with their own higher sexual satisfaction and, in men, with their female partners\' sexual satisfaction as well. For both men and women, these associations were mediated by sexual behavior: Self-directed SA motives were associated with more genitally focused sexual behavior (e.g., vaginal intercourse, oral sex), in turn associated with higher sexual satisfaction. For men, other-directed SA motives were associated with their own greater PPR and with that of their female partners. For women, self-directed SA motives were associated with their own greater PPR and with that of their male partners. Sexual behavior did not mediate associations with PPR. Theoretically, these findings support dyadic models of sexual satisfaction and intimacy and indicate that self-directed SA motives may be more important to sexual satisfaction than other-directed motives. Clinically, they support sex therapy approaches that integrate both partners and suggest that sexual motives and behavior may be relevant targets for intervention.