here is a video from 2022 (already posted above) when she was 13. I found a translation on a discord server a while back that I'll paste below.
Translation
Text in the background says "Tips how they get so big in a few months?" [sic]
LOL the funny thing is that I know who is behind this account. I could post such embarrassing photos of her as well but I [mumbles].
I will say to you: my body is still growing, I'm a fucking thirteen year old girl. And I'm eating...or...I gained weight..or yeah. Or as you say: pillows.
Can't you think of anything better like I'm wearing push-up or two bras beacause pillows, please? PILLOWS?!
Anyway this is the pillow that I use as you can see. Look this is what I usually do and then I put it in my bra. Anyway, here. There.