There's a sweet new illustrated novella at the Breast Expansion Story Club called "Chaos Theory". A sex scene in the story involves chaos magic transforming a girl into a two-dimensional cutout. Hey boyfriend deduces that he can save her by making love to her, and soon she's three-dimensional again. But they soon realize that her breasts are filling out even more rapidly than the rest of her, and they keep going! Soon the formerly small-breasted girl's bosom has expanded to truly huge proportions!
[BE Story Club]