Khloe, Kourtney, Kim and Kylie React to Jordyn-Tristan Scandal: 'I Need the F--king Whole Truth!'

The moment we've all been waiting for is finally coming to "Keeping Up with the Kardashians": Tristan Thompson's alleged hookup with Kylie Jenner's best friend, Jordyn Woods.

E! just released a new preview clip from Sunday's episode, which shows how Khloe Kardashian and sisters Kim, Kourtney and Kylie sprung into detective mode once they knew something foul was afoot.

The footage begins with Kim explaining she found out while on set filming interviews for the show, "literally same thing as the first time" Thompson cheated. Larsa Pippen was the one who found out first, getting the heads up from a reporter friend who was writing a story about Tristan and Jordyn getting a little too close at a house party.

"I immediately didn't believe it, I was like, this can't be true," says Kim, before jumping into a conference call with Khloe and Kourtney.

"I talked to Jordyn. She, it's really weird, she's not giving me all the information," says a frustrated Khloe. "She was like, 'He was trying to kiss me' and was like, 'I can't remember if we did or didn't.'"

From there, they looped in Kylie as well, as Khloe kept talking about her conversation with Jordyn.

"I said, 'If you are too nervous to tell me something, you can text me,'" says Khloe. "She said, 'I'll call you in five minutes.' She hasn't called me and that was like 20 minutes ago."

Calling the whole situation "very weird," Kylie adds, "This is the first time I'm hearing she was sitting on his lap." Cue Khloe: "I need the f--king whole truth!"

The clip ends with a confessional from Kim, who says Tristan was currently on a flight as it all hit the fan, and with Jordyn going "radio silent," it must be "such a frustrating situation" for her sister.

During her appearance on "Red Table Talk," Woods told Jada she "never once" gave Tristan a lap dance, nor did she make out with him, contrary to reports she had read. She claimed they were in plain sight the whole time. It was when Jordyn went to leave the party, around 7 a.m. the next day, that she claimed Tristan kissed her. Jordyn said that's the part she didn't immediately tell Khloe and Kylie -- and she said it was her biggest regret.

Khloe immediately went after Jordyn on Twitter, calling her a "liar" who "ruined" her family. She later cast the real blame on Tristan.

"Keeping Up with the Kardashians" airs Sundays on E!