People say that but I think it's just a myth. Imagine if that was the case, then everyone would rub their boobs all day and after a while they would be huge.
Does massaging your boobs make them bigger?
It's an urban myth that keeps going round and round and people still believe it!
No. Breasts are mostly fat and you cannot massage body parts to make more fat magically appear in that area. The trick is to learn how to be happy with yourself the way you are.