Chrysalis's plan might've failed in Canterlot, but she has a plan B.
To have a changeling/pony hybrid (thanks to a late night with Shining) and use the child's powers for her own doing.
But when a regular earth pony (that almost looks like Shining) spawns with absolutely no changeling features or powers whatsoever, she realizes that, not only will she bring it to the father, since she has no idea how take care of a pony, but that that was her last shot at getting food for her subjects. Her plans at helping her children have failed one too many times now.
Maybe she shouldn't try anymore...Maybe she should just...give up...give up and take this abomination away from her so she can finally end this!
Unless the child and his step parents can change that.

Authors words...yo: As per usual. Editing by Alticron.
and don't worry. This is Chrysie's story here. Not Shining's.

After thousands of years of ruling over Equestria and the umpteen amount of changes in social structure over that time, Celestia and Luna discover that they do not understand their subjects as well as they used to. After all, it's been several millennia since they were like every other average pony.

However, that's about to change when an eavesdropping Discord comes up with a "brilliant" idea.

How will the lives of the two sisters change? Will the lives of their new personas "Color Craft" and "Lyrical Rhapsody" be better than their old ones? Will the friends they meet along the way be too good to leave? And most importantly, will Discord ever be pretty?! No, probably not.

Artwork by wildberry-poptart on Deviant Art
http://www.deviantart.com/art/Teenage-Luna-and-Celestia-424486014

Featured: 1/19/2015 - Thanks!

Kuno, a young changeling, is left weak, bloodied, and bruised after the events of the Canterlot wedding. She is soon discovered by Warden, a Royal Guard. But for some reason, Warden shows her mercy. Instead of taking her into the custody of the Royal Guard, he becomes both her captor and her savior. But over time, Kuno will come to ask herself the hardest question she has ever pondered: Can a changeling feel love?