This has always been a problem for me. One of my boobs is at least a cup (maybe more) bigger than the other. It was awful growing up. I remember when I was 14 I was getting fitted for a bridesmaid dress for my DBs wedding. The lady measuring me noticed the difference and promptly pointed it out to SIL and suggested extra padding in the smaller cup to make sure I "didn't look lopsided on the day" :( embarrassing for anyone but to a 14 year old girl still going through puberty it was an extremely horrible thing to hear :(
I can't wear any nice low cut tops or dresses because my cleavage is wonky. Sometimes the smaller cup rides up and you can see it poking over the neckline
To this day I have never got measured for a bra. Yes I know the people who work in the shops will have seen it before but I am not putting myself through the embarrassment again.
Why can't they just be the same size. I wouldn't care if they were grapes or cantaloupes, just as long as they were even.