Koa is mad that she will be fired for having small boobs but she takes a breast expansion formula to make her boobs grow but instead it makes whole body grow and her boobs are the same proportions but as she attacks the city and eats more and more people she notices her Breasts expand until they are HUGE compared to even her Giantess Body. She eats and steps on people then uses her her massive breasts to destroy buildings.

This was a collaboration with MaxGrowth Go check them out.