Restarting this story to include new idea. Same name, different characters, different "timeline".

Artemis Sparkle, eldest daughter of Princess Twilight Sparkle, the Princess of Friendship and headmare of the school of friendship, has a secret. She likes vore. Specifically she likes being eaten. The only pony who knows about it is Pinkie Pie, who introduced her to the concept in the first place. After all, what better place to start your adventures in vore-xploration than with a pony who can literally break reality?