They say that good armour is a Royal Guard's best friend.

Sometimes, it might be a little more literal than expected.

After all, it isn’t every day that one receives shameless self-promotion from their protective attire.

Fluttershy is a normal pony living a normal life. Sure, saving the world once is an achievement, but other than that she was content with the life she has.

But when she finds two abandoned changeling nymphs, her life is quickly turned upside down. Now she cares for young two creatures she knows nothing about, and they don’t seem to trust her.

She is determined to give them the best life that she can.

Edit (Aug. 8th, 2021):

TN, OP now has an editor! Thank you to Helping Hoof for helping me with my work.

Twilight is doing an experiment, Spike is doing his chores. Everything is perfectly normal and completely fine in the Golden Oak Library...until Chrysalis drops in for a 'visit'.
Art by Conicer. (This was written with no clue that the picture was made for a different story.)
http://conicer.deviantart.com/art/Exchangeling-Perspectives-326884151

A changeling is on the loose in Ponyville, and Sweetie Belle won't rest until he's caught.

Thanks to Noble Thought for prereading.

Vector art by RankWinner.

When Princess Celestia faces a harsh choice to execute an innocent and virtually harmless changeling, will she be able to go through with the notion of taking the filly's life, or will sympathy overtake her moral alignment?

*In this story, the changelings are based off of Season 2, so it's as if they've never given love freely. Sept 4th, 2017

Trying to patrol the dreams of every pony in Equestria can be stressful. To ease her burden, Luna retools the Tantabus to turn nightmares into good dreams instead of vice versa. Aware of her mistakes from last time, she tests it out thoroughly, making sure there are no unexpected behaviors. And as far as she can tell, there are none.

Except that it's started calling her "Mom".

Faced with the prospect of possibly creating life, Luna seeks out Twilight's advice and assistance. With a little luck, they can get this all sorted out before the sun rises.

Thoraxis, a changeling, finds himself stranded in Ponyville, with no way of knowing how to get back home to his brethren and queen. The Mane Six, knowing of his presence in the town, and dreading of what he might do, try to find him, forcing him to hide. Adopting a persona, Thoraxis tries his hardest to survive in this enigmatic land of ponies, without being found, and runs into several, rather large "obstacles," of varying natures, in the process. Will he make it?

Warning! Early story. Bad grammar inbound!

After the invasion of Canterlot, ponies became aware of the frightening changeling race. As a result, they had adopted methods of exposing and countering the love-feeding parasites.

Glamour, like other changelings, have found it more challenging to find a stable supply of love. Seeing the flaws in posing as a pony's loved one, she tries a new way of getting love.

By becoming a fashion model.

All she had to do was become famous and bask in the adoration of her fans. However, the world of fashion is not as easy as it looks, and Glamour finds her life become much more complicated when she gets paired up with Manehattan's newest fashion designer, Coco Pommel.

First featured on 8/29/15

This story takes place a bit after the events of "Rarity Takes Manehattan".

Starlight Glimmer is what you might call a problem teenager, and her peer mentor, Sunset Shimmer, doesn't know what to do with her. Until she comes up with the one person who might be able to understand Starlight: herself.

My entry in FanOfMostEverything's A Most Delightful Ponidox contest.

What are the chances your favorite pony was secretly a changeling all along?

Yeah, probably about one in one.