Los Angeles, California - On the newest episode of The Kardashians, Kourtney Kardashian and Kylie Jenner don't hold back their feelings on their sister Khloé Kardashian's ex, Tristan Thompson.

Thursday's episode of the reality TV series featured the 32-year-old NBA star's continuing his "apology tour" to KoKo's family over cheating on her multiple times and fathering a child with someone else.

On the show, Tristan first apologized to Kylie for his cheating scandal with her ex-BFF Jordyn Woods.

"It's a hundred percent on me but I wanna say I'm sorry and I feel bad about it," the Cleveland Cavaliers player said.

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"The fact that I came with my poor decisions and being a f**king idiot, and being young and stupid, I wanted to say I'm sorry again for that," he continued.

Kylie commended Tristan for his honesty and noted that he does "have such a good heart and good energy."

"To know you is to love you," she told Tristan. "I think your spirit and everything, so it's confusing because some of the sh*t you do is f**king crazy."

Tristan agreed, saying, "I think a lot of it was selfish and not really understanding the value of good people."

But things weren't as smooth sailing when the former Lakers player chatted with the family's eldest sister, Kourtney.

Kourt has been the most vocal about her distrust of Tristan, and she didn't let up, even after the athlete admitted to not knowing "how to love."

"I was cheating just for an action, just cheating for a feeling," KoKo's ex explained, adding that the "trauma" came from seeing how his dad treated his late mother.

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Yet the Lemme mogul wasn't satisfied with his response, and compared her sister to Tristan's mom, saying, "You never had the mom who put herself first. But with Khloé, do you feel like she needs to put herself first and be like, 'You don't stand a chance?'"

While the basketball star stumbled on his response, Kourt added, "I don’t think you deserve Khloé, or the actions that you’ve done are something she's deserved," before a "To Be Continued..." screen closed out the episode.

Stay tuned!