It's no secret that the women in the Kardashian family are constantly surrounded by romance rumors. Kourtney Kardashian tried her best to doge some of the rumors about her and Justin Bieber on Monday's episode of "The Ellen DeGeneres Show."

The "Keeping Up with the Kardashian" star was grilled by the talk show host about her possible romantic relationship with the pop star, but Kardashian insisted that the two were just friends.

"You're smiling as if that maybe it's beyond friends," DeGeneres told the mother of three.

"I've been smiling this whole time since I've been sitting here," Kardashian added before taking a sip of water.

Kardashian's relationship with Beiber was not the only one she was asked about during her time on "The Ellen DeGeneres Show." Her little sister Kendall Jenner was spotted over the New Year's holiday with One Direction's Harry Styles in St. Barths. DeGeneres and her wife Portia De Rossi were also on the island then, and the host asked Kardashian about the possible relationship between Styles and Jenner.

"I don't know. You know more than I do," Kardashian told DeGeneres. "I'm telling you."

"He's very sweet," DeGeneres told her. "He's good-looking."

"He is good-looking," Kardashian replied.

Over the weekend Styles and Jenner were spotted attending the same party for music agent Jeff Azoff's birthday at the Troubadour rock club, according to People. While the two were seen together they arrived and left the party separately.

Check out the interview with Kardashian and DeGeneres below: