In a recent Psychological Science article, Hicks, McNulty, Meltzer, and Olson (2016) asserted that previous research on the association between sexual frequency and relationship satisfaction led to inconclusive results. However, Hicks et al. overlooked good evidence that there is a consistent relationship between penile-vaginal intercourse frequency and measures of relationship satisfaction (among other dimensions of satisfaction and indices of psychological and physical health and function; Brody, 2010; Brody & Costa, 2009; Brody, Costa, Hess, & Weiss, 2011; Costa & Brody, 2007; Maunder, Schoemaker, & Pruessner, 2017; Santtila et al., 2008; Smith, Nezlek, Webster, & Paddock, 2007).