Tagged when a breastless character grows breasts. This tag is sometimes affiliated with gender transformation, but also includes flat chested or featureless chested characters growing breasts by any means imaginable. A form of growth.

If a character already has breasts that are growing larger for one reason or another, breast expansion should be tagged instead.

Related tags:

• sequence
• transformation
• gender_transformation
• breast_expansion
• breast_shrinking for the opposite case, where existing breasts become smaller and may disappear entirely.
• genital_growth