Over the years I have heard various anecdotal tales regarding breast growth while on the pill -here in the 'States. The upshot was, various products affected different women differently. There was no particular brand or specific product that always caused BE. If there was, it probably would have failed FDA cert.
I think I did read in more than one place that some products were rumored to cause this a bit more often. I don't remember the specific products' names. I wonder if whatever the "Greek Pill" is, might have that sort of sporadic effect on some women.
Also, I recall that once you stopped taking the pill that happened to enlarge you, often the gains fell off again (much like pregnancy gains).
So, even if we found the brand/product - it still would likely be a crapshoot.
But wouldn't it be nice if your wife or GF was one of the pill-sensitive ones that retained the gains - and was happy about it?
-D'Artagnian
Not to be a Debbie Downer, but be aware that there are inherent health risks with taking any BC pill.
Less risk, but more dubious: take your wife or girlfriend to a Shakespeare play.