Oh, it's so on.
As we reported earlier, Amber Rose dissed Kylie Jenner and Tyga in a radio interview this morning, stating that the 25-year-old rapper should be "ashamed of himself" for his relationship with the 17-year-old reality star.
Just a few hours later, Khloe Kardashian attacked Amber on Twitter by dredging up past comments that Rose made about stripping at age 15 in order to help support her family.
Now, Amber has raised the stakes by dragging her ex Kanye West and his wife Kim Kardashian into the fight.
In response to Khloe's stripper comment, Amber tweeted a photo of a smiling Kanye, along with a caption reading, "When ur sister in law calls out ur ex for being a stripper, but ur wife has a sex tape."
Soon after that, she tweeted this gem:
It gets better. At some point today, Amber's ex Wiz Khalifa began following Khloe, while Kim's ex Reggie Bush started following Amber.
So it looks like the battle lines have been drawn and the sides have been chosen.
Khloe still has yet to respond to Amber's latest volley, but we imagine she's cooking something good. Get your popcorn ready, this could get seriously amusing.