i found a kari nip slip. i have a video clip where she's all oily and dirty, i think it's the one where she was stripping out of army fatigues, has soot on her face and stuff. at the 4:48 mark the camera pans down and she releases her tits a little too soon. if you have the clip check it out
As best I can tell, this is absolutely correct. The video appears to be taken at the same time as the photoshoot where she's wearing some kind of flack-jacket vest thing, but she's not wearing any camo or army-related gear in the video. Just black panties. It has a black background that looks like burned wood and she is, in fact, covered in a thin film of soot. The name of the video (or at least this is the name it had when I downloaded it) is: karisweets_K2_hq
Right at 4:49, 4:50, she spreads her fingers and her nipple is clearly visible.
For one frame.
It's slightly disappointing, but if you're anything like me, it's probably worth it to take a second to look for it.