Ever heard the difference between story and plot? I heard it explained like this: In a story, you get "The king died. Then the queen died." If you've got plot, it goes something like "The king died. Then the queen died of grief." So to thicken your story, add plot, which is basically just a cool word for feelings, depth, and motivation for why the characters do what they do. Today, look at your own work and see if you've got plot.