Sarah Jackson Breast Implants or Not?

Personally, I think Sarah Jackson is one of the most stunning of the lingerie models. Perhaps I am becoming a little cynical, but I have a suspicion that her perfect bust may not be totally natural. The evidence I would present is the near perfect shape achieved even without the support of a bra. Also, in the photograph below where she is holding her breasts, but is otherwise topless, I suspect a scar under the breast is to be seen. On the other hand, is this level of perfection possible with breast implants and is it truly a wonder of nature?

Just too perfect a shape?

Is this a scar under her right breast?