When a mishap occurs with Celestia's bathroom scale, an ancient protocol that may just doom Equestria is set into motion. With the entire palace staff now conspiring against her, the sun goddess must not only contend mountains of paper work, dancing celery sticks, and steroid pumped stallions, but a sister who will take this chance to torture Celestia any way she can as payback for her banishment. Lock the cupboards and barricade the fridge! It's the Royal Diet!

Now with TVTropes page! :http://tvtropes.org/pmwiki/pmwiki.php/Fanfic/ASliceOfLife

Celestia agrees to allow Twilight to spend the night at the palace per Luna's request. But as it turns out, the two ponies have other things in mind other than a sleep-over...