Rob Kardashian has split from pop star Rita Ora amid outrageous claims she cheated on him with 'more than 20 dudes'.
The unsubstantiated allegations were contained in a series of bitter tweets from the reality star, which were quickly deleted.
The reality star said he was 'disgusted' with the How We Do singer.
'She cheated on me with nearly 20 dudes while we were together... But I mean 20?!!!!' he tweeted in the early hours of Monday morning.
Minutes later Rob continued with his tirade against the star, writing: 'How can a woman who is so busy trying to start her own career have time to be with so many dudes while in a relationship?!'
And he added: 'I am actually disgusted.'
The tweets were live for around 30 minutes before Rob had second thoughts and deleted them - but not before they went viral.
It appeared Rob's sister Khloe was not happy with her little brother, tweeting: 'Rob be nice kiddddd.'
And she later reflected: 'Social media is so much drama. Hehehe thank goodness there was no social media when I was younger. Too much drama in the LBC.'
Rob, 25, was due to celebrate Rita's 22nd birthday at DSTRKT nightclub in London last week, but never appeared.
Rita had reportedly called things off with the Keeping Up With The Kardashians star due to her hectic work schedule and their incompatible jet-setting lifestyles.