Thank you for raising this really important issue, Mrs. Vecchio.
Facebook significantly restricts the display of nudity or sexual activity on our platforms. We don't allow it. In fact, we remove sexual imagery to prevent the sharing of non-consensual or underage content as well. Restrictions on the display of sexual activity also apply to digitally created content unless it's posted for educational or satirical purposes. We remove any explicit material.
In fact, we've previously run into criticism for over-enforcing on that kind of material and not allowing images of breast feeding, for instance. We're constantly working to make sure our policies are nuanced enough so that we're not over-enforcing on explicit imagery.