Breast Expansion - TV Tropes
A character suddenly finds their breasts enlarged to often immense levels, via Applied Phlebotinummagic, science, or otherwise. Mostly happens to marie westbrook nude characters suffering from A-Cup Angstthough women on the other side of the spectrum may have it happen as well.
When played for fanservice, the actual growth tends to be as important as the final size of the fury. It expansion also frequently played for comedybut this still ends up providing Fanservice.
Furry Huge Breast Expansion
Fury Overnight Age-Up for women usually guarantees this will happen. If the expansion is merely caused by puberty, there's a separate trope for that. If the expansion is done on a meta-level, see Adaptational Curves. An alternative is Fake Boobs.
Furry Breast Expansion - Tails on Make a GIF
What Were They Selling Again? A commercial for Brahma features two girls who have their breasts grow as a result of a nearby expansion blowing up a beach toy. An advertisement for the racing game Juiced features two teenage boys finding they can enlarge the breasts of a nearby girl breast strip her of her clothing by modifying breast in-game car.