kendall-jenner-nipples-460.jpg

Kendall Jenner posted this R-rated shot on her Instagram, so she HAD to know the picture would go up on every major site within hours of her uploading it!

The reality starlet, who turned 18 a little over two weeks ago, captioned the pic, "sneak peak of today's shoot with the amazing @nomadrj ... can't wait for you guys to see the rest of the photos!"

Sure she's a model, but just because she's doing high fashion now doesn't mean we can't ignore the fact that her teenage nipples are on the internet for all to see!

Maybe she was taking some fashion pointers from her big sister Kim?

Kim Kardashian  see through tight skirt red lips reality heels mesh

We seriously still can't get over that outfit ... or the outrageous "Bound 2" video!