It never crossed Twilight Sparkle's mind that her brother would get married, let alone have a child.

So, it's only natural that she'd want to visit the Crystal Empire as soon as she learned she was an aunt.

So why is it that, on the second day after Flurry Heart is born, Cadance is asking Twilight to kill her?

Once again, only rated M for the cover art and some questionable dialogue.
Cover art by lopoddity on derpibooru.
Pre-read by Curify and FamousLastWords.
Edited by Dreams of Ponies, with additional dialogue assistance from Aragon.