Kim Kardashian has put feud rumours between herself and her brother's ex-girlfriend Adrienne Bailon to rest, after insisting the singer has a "good heart".

Last month (Jul14), the former Disney Channel star, who dated Rob Kardashian for two years until 2009, slammed her ex in Latina magazine, revealing she hates being blamed for their break-up and insisting he cheated on her.

She also opened up about her appearance on family reality show Keeping Up With the Kardashians, admitting it was a big career regret.

Bailon's comments prompted Kim to fire back on Twitter.com writing, "Funny how she says being with a Kardashian hurt her career yet the only reason she has this article is bc (because) she is talking about a Kardashian... So sad when people try to kick my brother when he is down #FamilyForever."

However, during an appearance on U.S. late night talk show Watch What Happens Live on Tuesday (12Aug14), Kardashian attempted to put the feud behind her, by revealing she approved of her brother's girlfriend choice when he was dating the actress/singer.

When asked if she would rather have Bailon or another of Rob's former flames, Rita Ora, as a sister-in-law, the socialite answered, "I would say Adrienne. She was in our lives for a really long time and I know she's a really sweet girl and she has good intentions and she has a good heart."

Rob briefly dated Ora in 2012.