All credit goes to PrinceBlueMoon3 as the artist, I'm merely the uploader, and he left behind a long desciton for this one.

"Twilight has been really addicted to baked goods and delectable sweets lately, on account she recently became ruler of Equestria. She got so invested in savoring the taste and richness of her castle's desserts, that she neglected her royal figure. Of course, her being a much more heavier princess didn't disgust her citizens. They were very polite and tried to help her feel comfortable in her new figure, with some suggestion here and there on maybe trying out more healthier food or assistance from a gym coach. Twilight was completely blind sighted though and didn't see the problem with packing on a few extra pounds.

Until Today…. when she came to Rainbow Dash's place, still able to fly of course, but still quite a heavy girl. Fluttershy was also there. They had a good lunch together and Rainbow ended up being called down by Applejack on the ground. While those two were talking, let's just say Twilight after finishing her meal, decided to teleport a few…. thousand more treats for her Fluttershy. Of course, Twilight was the most hungrier of the two and binged out, much to Fluttershy's concern, especially at how Twilight's everygrowing mass sinked through the floor of Rainbow's house. Of course, after too many sweets, she fell through the cloud home of Rainbow Dash and crashed on the earth, safe, but she landed on two certain ponies. Needless to say, Twilight is about to hit the gym, rather she likes it or not."

~ PrinceBlueMoon3