I'm humming and hah-ing over my true bra size at the moment. Obviously I've lost weight, and recently bought myself a lovely Triumph 32DD bra. But I believe that Triumph tend to be generous in their cup sizing (and this is backed up by my experiences of bra-shopping on the weekend - I tried on several 32DD bras which were way too small in the cup, but unfortunately the only proper department store in town seems to carry no 32E bras at all).