Better damn believe it, folks. Kylie Jenner is trying to take over the Kardashian reign.

It's pretty clear what she's trying to prove and it's so wrong (she's only 17).

We all knew that one day Kim K would be taken down by someone, but her own half sister? I have a feeling Kim 'Oh No You Didn't Sistah!' K. is not going to let this one slide.

Prepare for an all-out 'Bikini Selfie WAR!'

"This. IS. Sparta!!!!!"