Khloé Kardashian has talked candidly about her personal life on Kocktails With Khloé, and in this week's episode, the 31-year-old touches on the uncomfortable topic of paternity rumors.

The reality star, who has long been the victim of reports questioning whether the late Robert Kardashian is her real father, admitted it's these types of stories that make fame difficult at times.

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“I think the thing that most became overwhelming was when, like, the stuff happened with one of my dad’s wives,” the author shares in a clip from her show. “She wanted to come out, like, 10 years later after my dad passed away and said that I’m not his daughter and that he confided in her and blah-say-blah.”

Though she fails to mention a name, the beauty is likely referring to her father's third wife, Ellen Pierson, who sold excerpts from his personal diary in 2013, 10 years after he died from cancer. She also claimed that Robert told her he wasn't Khloé's biological parent.

“I was like, ‘Listen, you can talk about me and my sisters all you f–king want. Do not talk about my dad'.… He’s not here!” Khloé says.

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On Feb. 22, the host paid tribute to Robert on what would have been his 72nd birthday, writing, "To the best man I've ever known, happy birthday daddy. I miss you! I miss you! I miss you! Man… I wish we had more pictures together.”

Watch the teaser for tonight's Kocktails With Khloé below: