Princess Luna had just finished a busy day of visiting the spa and throwing up in the toilet after a mean taco she had devoured earlier that day. She had to wave to her fans and wish everypony a peaceful slumber as she began to raise the moon, and then she began her long walk back to her chambers. Yep. A princess’ work is never done.
“Luna,” Celestia called out as she caught up to Luna from behind. The younger sibling sighed as she stopped, Celestia stopping just beside her. “The griffons are getting rowdy at the eastern border and my hooves are full cleaning up after that arson that took place in Manehatten. Could you take a small squad with you and enter negotiations with their leader?”
“Oh, gee, Sis, I’d love to, but y’see, there is, uhhhhhh… A SISTERLY FEUD!”
Celestia slammed a hoof into her face and slowly dragged it down. “… And?”
“Well, somepony has to end it! It’s gone on for like an entire night!”
Celestia grinded her teeth together as a vein began to pop in her head. “Luna, I’m pretty sure this takes priority over-”
“Bye!” Luna vanished before Celestia could argue her case any further.
Celestia grumbled as she searched her mind for a anypony who could fill in for her sister. The only pony of royal status who she could reach at such hours was Blueblood. “… One of these days, you will have to do your duties, Luna.”