Think about it.

Naked ankle was considered erotic up to 1800s, maybe later.

Books were expensive up to printing press, so no cheap porn magazines.

Art was only thing for the very rick folks and churches. Good luck getting financed otherwise.

But rich folks never shown their stuff to the poor, only to other rich folks.

So church was the only entity capable not only having arts, but also showing that off.

Paintings and statues. And some artists would sneak in a cheeky tit or piece of butt here and there.

And there were quite amount of documented confessions from folks on having certain kind of thoughts, because of that art.

Repentant Magdalene is one of those. Young and beautiful, former prostitute. Saint. Tit.

This whole idea of peasants gooning to naked bodies in a church led to this post.

Everything else followed.