Khloé Kardashian made an appearance on "Watch What Happens Live" on Sunday and talked about two important men in her life: her younger brother Robert and estranged husband Lamar Odom.

Kardashian, 31, said that the former NBA star, 36, whom she split from in 2013 after four years of marriage, was expected to live for four hours after he fell into a coma, but now the star is "walking and talking."

"Doctors are astonished by how quickly he's advancing," Kardashian told host Andy Cohen, according to ABC News. "He's fighting for his life, and I really pray that this is a wake-up call for him and he changes his life."

Kardashian ended divorce proceedings after Odom was discovered unconscious and fighting for his life.

The reality TV star added that despite his issues, she insists that he is still a "great person."

Kardashian then went on to talk about brother Robert and his recent diabetes diagnosis and how he's been living his life away from the spotlight after gaining a bit of weight and battling depression.

"I mean I don't think he blames any of us [for his problems], we talk about stuff all the time," Khloé said, according to People.

The star added that Rob "felt lost" after he finished school, something that their late father Robert Kardashian Sr. had wanted for him.

Meanwhile, she also cleared up a rumor about which of her sisters is currently romantically linked to Canadian pop singer Justin Bieber.

When asked by Cohen during the segment "Plead the Fifth," the Kardashian sister declared that neither Kendall, nor Kylie nor Kourtney, are dating Bieber, but added, "That'd be amazing if it was all of the above, though," according to USA Today.