@Bluedudu
That's definitely not the body of a 10 year old girl. Definitely not the body of a malnourished girl. You know how malnourished girl look like? They definitely don't have tits. The looks of a malnourished person is very striking. Her body is around 16 at the very least, 19 most likely, but that's definitely not the body of a 10 year old girl.
No genetic quirk will create that kind of body for a 10 year old girl, unless if she gets extreme genes from 20 generations of continuous inbreeding.