"No, No, No, this won't do!"
Her Sister shouted, gazing over the ever growing body of the blue mare of the night. She was furious, as Luna was simply not gaining as fast as she should.
"You said you would be able to do the task!"

Luna whimpered, as even as her sister shouted, her mouth was being stuffed by cake. Cake, the entire day and night long. She felt how her mass had increased over the weeks of feeding, fat starting to hug her neck, legs and flank, her stomach hanging deep enough to keep her pinned down.

"We need to speed this up." the brilliant white mare grumbled. Much to Lunas horror, a machine was brought along, being set in front of her. A tube was shoved down her throat. She knew by now, that this wasn't going to end soon. She might never be normal sized again. She feared.. that in the end, nothing more than a big ball of chub would be left of her.'