Dd6 tends to be quiet and hesitant in doing narration because she wants to tell the story perfectly, complete with quotes from the characters. I think we'll do narration exercises using Bible stories next; those don't have as much conversation, but I'll still be able to find related YouTube videos that the girls can watch after hearing a story.
I will likely come back to Aesop's fables in a month for other reasons. We are oh-so-slowly making our way through Story of the World, Volume 1, and we're finally approaching the segments on ancient Greece! I'm so glad. Mesopotamian studies just seem to drag on and on without being very interesting (new warlord conquers and kills, big mud buildings are built, rivers shift course, formerly-dominant cities erode away, etc. ), especially for dd6, who is sensitive and averse to bloodshed (despite having watched Mulan so many times).