I ran into this one day while looking for something completely different. While i haven't found any pictures to go along with this, apparently she was hit by a blast of radiation right in the chest, and now her breasts have become not only huge, but indestructible!
I present to you.... Supertet!
http://www.portalcomic.com/quienesqu.../supertet.html
Get your favorite translation site ready, because she's em portugu?s!