While guest hosting the late night talk show "Chelsea Lately," Khloé Kardashian makes crude jokes that certainly surprised the host and audience.

"You may know me as the only Kardashian sister that Chelsea actually likes," the reality star opened the show with her monologue. "However, most people know me as the sister of fashion icon and sock tycoon Rob Kardashian."

She continued by joking about her brother. "Rob's been on my mind a lot lately because we're currently living together," she said, adding with a wink, "and no, we're not sexually involved -- my brother's not nearly black enough for me!"

The joke was followed by the question of the 29-year-old's paternity, with guest Bob Saget making his own claim to be her father during his interview. "I'm saying I'm your dad. That's the book: 'Dirty Daddy,'" the 57-year-old standup comedian said, promoting his memoir. "And that's the story of how I met your mother, right?"

"Yes! I've been searching [for] who my father is for years!" said Kardashian, humorously playing off Saget's joke.

Kardashian then addressed rumors that she recently purchased Justin Bieber's Calabasas mansion. "I'm not saying if that's true, but if it is, this marks the first time a neighborhood will be happy to see a Kardashian move in," she said.

Khloé Kardashian also admitted that she and her siblings were "faced with dilemma" in time for her parents' 23rd wedding anniversary, since Kris and Bruce Jenner have been separated since last October. "It's a little awkward -- they're kinda separated, I don't know if they're getting a divorce or what," she said.