To B or not to B

While discussing with a few of my friends my post on 'boob watching' by men, the question came about the cup sizes. These women in question have much more than 'barely there'. I was really surprised to hear that they all are Bs. So who ever has named B as 'barely there' do not know the technicalities of the sizes. It looks like a size B can also be quite sizable based on the size of the body they are fitted on. Narrating this to a friend inspired her to draw this cartoon.