The magic word is "Brasserie."
Apparently, your cleavage-clad pictures are being tagged unbeknownst to you in your iPhone, and can be searched by simply typing Brasserie into your search bar in your photos.
ATTENTION ALL GIRLS ALL GIRLS!!! Go to your photos and type in the 'Brassiere' why are apple saving these and made it a folder!!?!!?????????????????
Not only did Chrissy Teigen verify this, I did too. As a female, I don't take a lot of those type of shots, but as a photographer, I have quite a few examples, as well as client photography that popped up when I typed in the word.
It's true. If u type in "brassiere" in the search of your iphotos, it has a category for every boob or cleavage pic you've ever taken. Why.
So, ladies, I would suggest checking your phone and seeing if it does the same. Luckily, The Verge points out that the data is only stored locally.
"Image recognition was introduced with iOS 10 in June 2016, when the Photos app was updated with deep learning for object and scene detection. Apple stressed during the keynote, as well as on its website, that all object detection is done completely locally on the device."
They also noted that Google has been doing the same thing since 2015 on their servers, and the fact that there is way less attention to Male's clothing while tagging than when it comes to women's clothing.
As of right now, there's not really a way to fix it, but I guess at least you know it's happening?
Amy Cooper is one with the force and the force is with her.