Firstly, I've never seen bowling balls that big. Secondly, I'm pretty sure those are fake (as in, prostheses). Her tits look way too spherical. She show little-to-no cleavage. She has videos on YouTube, and her boobs never move or jiggle or anything like actual tits would. They also don't seem to weigh anything in her videos.
Judging by the couple of shots where you *can* see cleavage, it looks like she *does* have a big rack for her size, but that she pads it in her daily life. Pads it a lot. For some reason. Anyway! Just my two cents!
They are not fake she has Virginal breast hypertrophy When Gigantomastia occurs in young women during puberty, the medical condition is known as juvenile macromastia or juvenile gigantomastia and sometimes as Virginal breast hypertrophy.