Twilight reads a story to Nyx.

In this story it shows three different parts.
1. Twilight and Nyx. -they are reading the story
2. Princess Nyx- What Twilight and Nyx are reading only in the Princess Nyx pov
3.Nightcolt- Twilight and Nyx not know what Nightcolt is like without reading what Princess Nyx talks about him in the story. When it goes to him it'll show his own feelings.