Adrienne Bailon arrives at the 2014 BET Awards in Los Angeles, California on June 29, 2014. Photo: Kevork Djansezian

London - Rob Kardashian has taken a shot at ex-girlfriend Adrienne Bailon on Twitter.

The 'Keeping Up with the Kardashians' star appeared to respond to the singer-turned-talk show host's claims that dating him hurt her career by retweeting a message from sister Khloe Kardashian reading 'FDB' - an abbreviation for slang term 'F**k dat b***h'.

Khloe tweeted the jibe on Wednesday afternoon just hours after sister Kim Kardashian, 33, leapt to Rob's defence and scolded Adrienne for kicking their sibling - who has been battling depression over his substantial weight gain - "when he's down".

The former member of Disney’s Cheetah Girls dated the reality TV star for two years from 2007 to 2009, and later underwent laser treatment to get a tattoo of his name removed from her behind.

She recently gave a tell-all interview for Latina magazine in which she branded Rob “disloyal” and claims that appearing on the famous family's E! show had a negative impact on her career as a singer and actress.

She said: "To be stuck with that Kardashian label, that was so hurtful to me and to my career. I probably realised that too late - not that it would've affected my decisions in terms of who I dated, but it would've affected my decision to appear on the show."

"At the time, I didn't think anyone would even care. To this day, people will still say, 'You ruined Rob's life!' and I'll think, Damn, I was still playing with Barbie dolls when I met him."

Adrienne also claims she felt under pressure to stay with Rob after he cheated on her.

She said: "It's common knowledge that he cheated on me, and it always bothered me that people were like, 'Pero, why couldn't you forgive him?' Why are women always the ones who have to forgive? If you cheated on a man, he would be like, 'You're disgusting, and I want nothing to do with you.' But women, we're supposed to be like, 'He messed up. He made a mistake.' "

She added: "And, in my situation, it wasn't like, 'Oh my God! I made a mistake!' He strategically planned things out so that he could cheat on me, and that to me was so disloyal."

Kim was the first Kardashian to hit back at Adrienne, tweeting: "Funny how she says being with a Kardashian hurt her career yet the only reason she has this article is bc she is talking about a Kardashian.

"So sad when people try to kick my brother when he is down #FamilyForever (sic)"

Khloe, 30, later echoed Kim's sentiments and added: "thought her and I were cool SMH [shake my head] (sic)" - BANG Showbiz