This investigation explored the role of sexual attitude similarity in
sexually involved romantic couples. Findings indicate that sexual atti
tudes of partners are positively correlated, and that partners exhibit
significantly greater levels of similarity than randomly generated co
uples. Similarity in sexual attitudes did not vary as a function of le
ngth of relationship or length of sexual involvement. Gender differenc
es were evident in the correlations between certain types of sexual at
titudes and the four indicators of relationship quality: sexual satisf
action, relational satisfaction, commitment, and sexual communication
satisfaction. In addition, sexual communication satisfaction mediated
the effect of sexual attitude similarity on both males' and females' s
exual satisfaction.