Rarity had always wanted her breasts to be a little bit bigger. She just never cared enough to do anything about it. Until one day when she unexpectedly found a breast enlargement spell while flipping through a book. The spell was a little complicated for her, but Rarity thought that she could pull it off. What could go wrong?

Warning: This story is humanized. Just telling you now! Also, although they are humans the characters that would normally be unicorns still have magic, and the characters that would normally be pegasi are still able to fly. (Like superman )