When someone is unhappy about the size of their own breasts, be they [[large breasts|large]], [[small breasts|small]] or [[flat_chest|absent]]. 

If this unhappiness is due to the larger breasts of another character in the picture, use [[breast envy]]. If the larger character is envious of a character's smaller or absent breasts, use [[flat envy]].

h4. See also

* [[breast padding]]
* [[knee boobs]]
* [[looking at breasts]]
* [[weight conscious]]
* [[ass conscious]]