An experiment gone awry has left Twilight Sparkle with a problem. A big problem. A twenty foot tall problem, to be precise.

Rarity literally burst out of the ground from Twilight's basement, overcharged with foreign magic, and her body deliciously enhanced in the most amazing ways. In fact, between her massive bust, densely packed muscles, and engorged endowment, it seems the only thing growing larger than Rarity's body... is her ego.

However, as she continues to grow and grow, insulting and belittling everypony she sees, a certain dragon crosses into her vision. Rarity then learns a very important life lesson: when dealing with an apex predator who has been seen to undergo magical growth triggered by emotions, calling him tiny and weak is probably not the best idea...

Trigger Warnings: Macro, Breast/Penis/Muscle/Ball/Full-Body Growth, Male-on-Futa, Futa-on-Male, widespread destruction of an innocent forest, veritable seas of cum, a very smug Rarity, and a very pissed off Spike.

Extra Super Lewd Trigger Warnings: Humor, Heart, and one serious bout of Twilighting.

Cover art by Pia-Sama

*All characters in this story are 18 or over.