Justin Bieber makes Kourtney smile! Ellen DeGeneres did her best to get all the gossip from Kourtney Kardashian when she visited her talk show for an episode which will air later today, Monday, January 25 — but the reality star’s face gave away way more than her words!

Ellen’s topics of conversation went straight to the point — first up, Kendall Jenner's relationship with Harry Styles, and then a clever segue into Kardashian’s own love life.

Turned out DeGeneres knew more than Kardashian did when it came to model Jenner's romance with the One Direction hunk, as she ran into the pair when they were vacationing in St. Bart's over the holidays. See pics from Kendall and Harry's steamy getaway

"I saw her and Harry, and they are a cute couple, right?" the show host asked Kardashian.

"I don’t know. You know more than I do," she replied coyly.

"Really?" pressed DeGeneres.

"I’m telling you," she replied, adding that she had yet to meet the 21-year-old Brit.

"He’s very sweet," DeGeneres continued. "He’s good-looking."

"He is good-looking," Kardashian, 36, conceded, before DeGeneres allowed her guest to get onto some more comfortable conversation topics, such as her app.

But it wasn't long before DeGeneres cheekily returned to the topic of romance — this time, pressing the tight-lipped reality star on the status of her relationship with Bieber.

"Does Justin Bieber help with the kids at all?" she asked, innocently.

Watch the clip above to see how the mom-of-three responded to DeGeneres' probing questions, and check out her totally irrepressible smile!

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Christina's Wardrobe Credit: Bloomingdales.