Ha, I just came back from the LLS (local lingerie store) from my annual bra buying expedition. They send me a 20% discount every year for my birthday, so...
I've been wearing Calvin Klein bras for about 2 years, on their recommendation. I had horrible experiences with on line bra buying; I have the opposite problem, in that I'm a 32 A. Or, I thought I was. The salesperson told me Calvin had changed their entire line and gave me 3 bras to try. They were tighter than hell! She suggested a 32B. I was shocked! I am practically flat chested, yet the 32Bs fit perfectly. I bought 2 32Bs, one 32A (a different brand), and a V back bra in a 32B.
Then we laughed when I asked for 2 pair of Le Mystere thongs. Apparently, I am one of the 5 middle aged women in my community who wear thongs...
I don't think my boobs have really gotten bigger, but the bras fit.