Well...
A social media post (of hers, a while back) that I was basing my thinking on appears to no longer be online.
And I can't say I know for sure, so I'll stop right there.

I can certainly say that she is, right now, incredibly beautiful...
(and I Don't believe her own assertions that "YES-I’m ugly without make up that’s why I wear it everyday!" - from her OKcupid post)
And yes, she bounces when she walks quite wonderfully.
I'll add an older photo from that OKcupid post - she has a full, nice well formed bustline there, but not huge.
If she has grown the enormous boobs she carries now from just weight gain - and she has remained comparatively trim everywhere else - I'll agree that she is one of those genetic bustline weightgain marvels.

-D'Artagnian
Not trying to be argumentative, especially when I have no proof.