oh god why would a busty girl want a strapless dress finding a strapless bra is hard enough making that stay on the entire night? are you mad?
Because the majority of the designers automatically assume that the customers going to be buying it have small boobs. Another possible reason is that the designers themselves have small boobs.
Cup B is better, C is cognizable, D may be devastating, E is enormus while A is just affermative, hence. This is my new terminology for bra cups.
