Rainbow Dash has been very, very insecure about her chest for the longest time. A rather ironic concept, given how much pride she puts into the rest of her. And while her alicorn lover, Green Thunder, loves her no matter what she looks like, the mare wants a bigger chest. Thankfully, a solution came in the form of a new, strange shake mixture. After waiting seemingly forever for it to arrive, Rainbow has it, and is going to give it a try.

Contains: Hyper Boobs, Breast Expansion
Commissioned for blaa6
Derpibooru: 3351303