It was very surprising to me, but it made national news.

Also, It tends to be female readers while males just watch to "get it done quickly". Thus you watch porn, but you read erotica. Porn is degrading to women. Read porn is considered erotica which is empowering rather than denigrating. It makes all of the difference.

In fact, some porn that is watched and marketed toward women will be labeled erotica rather than porn. So it depends on the term I guess... Too complicated.