Interesting subject! Coincedentally I wondered about this last week when I saw some African women on the tv.. and always when I see African women i think how can they always be so curvy and they have beautiful skin too..
Food or hormones...
But Asian women are less tall so an A cup looks bigger on them then on many Western girls..maybe that plays a role as well.
And that mothers have bigger breasts then their daughters could be due to a slower metabolism which you get when getting older.

But Asian women are less tall so an A cup looks bigger on them then on many Western girls..maybe that plays a role as well.
And that mothers have bigger breasts then their daughters could be due to a slower metabolism which you get when getting older.