Go watch some porn in public.
As for the concept of porn itself, it's relegated to other bedroom topics and just doesn't come up in "polite" conversation.
Only in liberal, upper middle class, circles. Which of course includes most of the wannabe upper-middle-class talking heads and journalists.
Middle class society don't share the "empowered, sexy" view for porn on women at all.
I haven't personally observed this, but our society certainly shames the women who perform in pornography.
It's a society of hypocrites and puritans.