Natalie Nunn

"Bad Girls Club" star Natalie Nunn tells TMZ ... she's ready to and willing to raise a big legal stink to shut down a person trying to shop naked pics of the reality star to various media outlets. That's right ... Natalie tells us the pics are legit ... but they were supposed to be private. TMZ…

TMZ has learned Chris Brown has been getting pretty close with a new woman recently -- and this one is a very bad girl. The woman in the photos is Natalie Nunn, a contestant on the next season of a reality show called "The Bad Girls Club" -- which features women with behavioral issues. Nunn has…