>>49924907
This is the second most obvious one that came to mind, if you look at her left boob (our right) you can clearly see the edge of the perfectly circular nipple cover on the left side and bottom in between the stitched leaves. And on the other side it's blatantly sticking out at the top.

Another example:
https://x.com/tsunko_p/status/1906816070562033752
I don't think this was an outfit from her PB but you can see through the transparent top, her boob is all normal boob colored except for where you would expect her nipples to be, which is pure white, due to her wearing a sticker.

https://x.com/tsunko_p/status/1902467389641609646
This one is from a different shoot too but you can see the cover pretty clearly on the right under the sheer fabric.

https://x.com/tsunko_p/status/1884347245371498936
Another example where you can see it under the sheer top and also sticking out on the bottom where it was photoshopped away.

I can't find the most obvious one where she is topless and you can just see half of the sticker so you have to trust me bro on that one.