Hai pls help I’m kinda concerned TT

So 2 days ago when I’ve been absent from mangago I went to visit my younger cousins and one of them is 12, and she is part of an online business, which I have no problem with, but like she posts s*xually explicit images of herself (as a model for her business’ products) that is not fitting for her age and there are many literally adults on there holy shit. My cousin has always looked older than her age so many of her 16-19 year old friends think she’s like 16-18 which is really concerning cause they don’t know they’re partaking in pedophile behavior. She also has many boyfriends one of them is literally 17 and he kissed her and she had no problem with it. My other cousins also think it’s concerning but they’re not as worried as I am. Of course none of her parents or our parents know, since we’re literally from an asian household so she’ll probably get whooped if the parents knew. Is there anything I can try to do to help, because I think this is definitely not normal.