Agamon said:that's just not very accurate.
Accurate? Accurate?!? Given how much of the busty art we see isn't within the realm of normal human proportions, I don't see how 'accuracy" has anything to do with it.
And, by the way, the whole "being busty means they have stronger lower back muscles to carry beer" sounds pretty questionable to me. The busty women I know all say that the extra baggage causes lower back pain, rather then prepares them for more.