Why Is Sexy Dancer Kaffy Showing Her Boobs?

For sometime now, I've been under the impression that Kaffy the dance queen is one of the few ladies who do not take delight in showing their "oranges", but it appears I'm very very wrong.

But my worry is, does she really need to "push up" her boobs even while in the pool?
Kaffy, what's the point of doing push up here?