Rationale --------- We recently argued that couples who are concordant in solitary pornography use should report better sexual communication and higher intimacy than couples who are discordant in solitary pornography use. We [tested][1] these predictions with a sample of *N* = 200 heterosexual couples who were selected to match the distribution of age and political affiliation of married Americans using actor-partner interdependence models that included an interaction term between actors' and partners' solitary pornography use. Significant positive interaction terms in the context of negative actor and parter effects supported our predictions ([Kohut, Balzarini, Campbell, & Fisher, 2016][2]) and these effects remained while controlling for shared pornography use (Kohut, Balzarini, Campbell, & Fisher, *in preparation*). Independent of this line of research, McNulty and Russel have examined how reports of couple members enjoyment of pornography, and their interaction predict sexual satisfaction (McNulty, *personal communication*). Once again, a positive interaction in the context of negative main effects indicated that personal enjoyment of pornography use was negatively associated with sexual satisfaction when partners' enjoyment was low, but positively related to sexual satisfaction when partners' enjoyment was high. While these results are specific to patterns of liking pornography, they are remarkably similar to the patterns we report with behavioral data, and liking and use of pornography likely correlate robustly. Both lines of research were primarily data-driven, focusing on how different dyadic patterns of pornography use may influence the outcomes of such use for the relationship. Theoretical explanations for these effects remain tentative, but may include elements of the similarity-repulsion work, as well theories that describe connections between communication, self-disclosure, intimacy, and passion. Kohut and colleagues are currently entertaining the possibility that pornography use may not be influencing these endpoints directly. Instead, pornography may simply indicate erotophilic individuals, with liberal sexual attitudes, and relatively high sex drive. From this perspective, concordance and discordance in pornography use may indicate concordance and discordance in a range of variables that may be relevant to sexual communication, intimacy, and sexual satisfaction. Predictions ----------- Independent of the theoretical explanations, or the specific mechanisms at play, McNulty and Russel's findings, in conjunction with our own, suggest that we should find a significant positive interaction in the context of negative main effects when predicting sexual satisfaction with actors' and partners' solitary pornography use in our previously collected data. Furthermore, as sexual satisfaction and intimacy are likely correlated with relationship satisfaction, we expect the same pattern of results to apply to relationship satisfaction as well. If these predictions hold, we will have extended both our own, and McNulty and Rusell's independent lines of research. Given the non-independence of these tests from our previous tests with the same sample, any effects will need to be replicated with an additional independent sample. Method ------ After reading the Letter of Information and consenting to take part in the study (see [Qualtrics Survey][3]), participants completed basic demographic information, and standardized measures concerning relationship quality(e.g. relationship satisfaction, sexual satisfaction, intimacy, communication), attachment orientations, and experience with and perceptions of pornography use within their relationships (see [Qualtrics Survey][3]). Participants were free to skip any question without loss of promised compensation. Once all the questions were completed, participants were thanked for participating, provided with debriefing information (see [Qualtrics Survey][3]). [1]: https://osf.io/2rt7e/ [2]: https://osf.io/5k4tr/ [3]: https://osf.io/zw5j2/