Princess Gets FAT, Can't Fit in Dress!

Description: Princess luna used to be the envy of everyone, she was thin and beautiful. now, she's been put on a diet! but that won't stop her from getting more food... as she sneaks some cake in her bedroom, to pre-stuff her belly for the upcoming feast, she realizes her dress no longer fits, you can even hear the seams rip! how has she gotten this big? she thought she only got a little chubby...