[seanna]

Here in Greece some doctors claim that massaging with olive oil can increase breast size.
In my opinion this is true but I don;t think you will see any huge results and it might take a lot of time, like a lot of time!

Olive Oil has per tsp (thats the amount of oil using to massage right?):
Vitamin E (Alpha Tocopherol) 0.6 mg 3%
Total Omega-3 fatty acids 34.2 mg
Total Omega-6 fatty acids 439 mg
Phytosterols 9.9 mg

source: http://nutritiondata.self.com/facts/fats-and-oils/509/2

Here is the thing, it is good to have more Omega 3s than omega 6 fatty acids, so in my opinion flaxseed oil is a must or eat lots of foods that contains omega 3's.

if I understand correctly, you are a thin person? then definitely olive oil thats rich in fats will make a difference, but in my opinion spend the extra money to buy an organic flaxseed oil for its omega 3s to keep it balanced.
You can mix them together and you flaxseed oil will last much longer.