Talk about a public war of words!

Just one day after Rob Kardashian took to Twitter to accuse girlfriend Rita Ora of sleeping with more than twenty men behind his back, now the reality star is making more sensational accusations, claiming that he impregnated the "R.I.P" singer before their recent split!

As if that wasn't enough, Kim K's younger brother also blasts the British beauty for having unprotected sex during her various affairs! "So you let me get you pregnant and you let others hit raw?" he tweeted in response to Ora's tweet, "Rob's d**k was wack, I had to go get it somewhere else."

Clean it up, you two! Twitter is public if you haven't realized that!

Although both their vicious tweets have since been deleted, that doesn't mean the feud is over! Even Rob's family, including his sister Khloe, has gotten involved in the drama! "Rob be nice kiddddd," she tweeted at her little bro.

We're dying to know what Kris Jenner thinks of this situation! She's probably busy brainstorming a publicity stunt to distract people from this ongoing scandal!