Her career has caused quite a bit of controversy, though, with many people fearing that the budding Russian model is entirely too young for all of this, especially with her modeling pictures popping up all over the internet.
Kristina's mom runs her Facebook and Instagram accounts, which have over 2.5 million followers between the two of them. Her mother makes it clear that Kristina never posts anywhere on the internet herself, but some still think it's inappropriate, especially because of pictures like this, which critics say are sexualizing the young girl:
There have been some inappropriate comments on photos, with some calling her a "babe" and saying other things that simply shouldn't be said about a 9-year-old. Still, there is a lot of debate about whether it's the commenters' fault or if it's her parents' fault for putting those photos out there.
Her mom did post some rules on the Facebook page she runs for her daughter, basically asking people to behave themselves, but the controversy remains.
What do you guys think of the whole thing?