Not a very good test as they don't have the same size of boobs, the bras are different and they're not shaking them the same way but you'll have to do with that until somebody does a better comparison.
Video mentioned at the beginning.
A website in China challenged Gouy Zhingzhing to test the firmness of her breasts and she obliged.
These leading ladies win the award for the best “natural” breasts of 2012.
Don't look if you are susceptible.
Some celebrity breast enhancements are more memorable than others, and not always for the best reasons.