“As types of pornography that were less common in the past—for example violence, this or that fetish—become more and more common and easily accessible, consumers get bored by them and need the extremity and deviance upped a notch to once again become aroused and excited," says Wright. “Few sexual acts are more extreme or deviant than incest.”

“Pornography keeps pushing the boundaries—it’s been doing that for a number of decades, to now where it’s gotten to incest,” she said. “Sex has alway been about the forbidden, and here it’s just about as forbidden as you can get.”