Princess Celestia

Princess Celestia is a main character of MLP: A Royal Pain. She is a lazy cake addict.

Personality
Princess Celestia is described as a lazy, cake addicted mare.

Princess Cadence
Celestia and Cadence have some sort of rivalry. In Cake Monster - Part 1, when Cadence called Celestia fat, she responded with a faint "oh...", but then Cadence told her to get lost, and she punched Cadence and told her to get out of her hood. She then bragged on how beautiful she was and warned her that she could fire her from protecting the Crystal Empire, and make Shining Armor the ruler.

Shining Armor
In Cake Monster - Part 1, Celestia beat up Shining Armor, but this was when she was in her cake craze.