How can someone grow this fast?

So I follow this girl on social media have been for about two years when I first found her page she had a few thousand subs she was a pretty girl and then she started an OF page. In comparison to most other girls OF pages tho what she posts is pretty tame and don’t get me wrong she gorgeous in my opinion but she’s not Rihanna gorgeous or some other really attractive celebrity Gorgeous.
Yet she’s has about 1.8 million followers on instagram in her main page alone she has multiple pages she runs.
Like if it was the OF that’s one thing but she grew so big in less than a year on top of that she keep growing at a really rapid rate like she has more followers than some smaller TV celebrities I’ve seen and more then some OF models I’ve seen doing this way longer than her like I expected this girl to get big but this big and still growing rapidly at the pace she’s going? Feels kinda artificial not even a week ago she was at 1.6 million now she’s at 1.8 within days that’s 200k followers within a week that’s insane there are big YouTubers and stuff that I know with less. What is her secret I’ve never seen anyone grow so fast?
How can someone grow this fast?
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