Residents of 27 states that passed laws banning gay marriages boasted 11% more porn subscribers than states that don't explicitly restrict gay marriage.
To get a better handle on other associations between social attitudes and pornography consumption, Edelman melded his data with a previous study on public attitudes toward religion.
States where a majority of residents agreed with the statement "I have old-fashioned values about family and marriage," bought 3.6 more subscriptions per thousand people than states where a majority disagreed. A similar difference emerged for the statement "AIDS might be God's punishment for immoral sexual behaviour."
"One natural hypothesis is something like repression: if you're told you can't have this, then you want it more," Edelman says."