Rob, 37, responded with his signature dry sense of humor.

"Yeah, everything in my life is a joke," the former Rob & Chyna star quipped. "She thinks I'm a joke. No, I'm kidding. If definitely wasn't a joke."

"You told me you loved me!" Rob joked to Malika, before adding. "I'm just kidding about you telling me you loved me."

Khloe's former assistant—who shares son Ace, 4, with ex O.T. Genasis—responded, "I still love you! I will love you, either romantically or not."

After Rob declared that his fling with the Sky High actress was "all fun and games" with "great gamesmanship," his older sister asked him about their "sexcapades."

As for Rob’s recollection? "It was great sex!" the Arthur George Socks founder—who shares daughter Dream, 8, with ex Blac Chyna—replied. "It was very passionate and very good. It was a great passionate connection. It was everything I needed. You like that, Khloe?"

Malika, 41, and Khloe, 40, continued their back and forth after the Good American founder—who shares True, 6, and Tatum, 2, with ex Tristan Thompson—hung up her phone call with Rob. After Malika asked if Rob could join them for dinner after their recording, Khloe said that she's "tickling his pickle over there."

When her BFF responded by saying she hasn't "tickled any pickles," Khloe shot back, "You went behind my back and were f--king my brother!"

Malika took issue with Khloe's characterization of events, saying, "It wasn't behind your back. Was I supposed to say, 'Hey, Khloe! Just an announcement...?'"

The Kardashians star said that Malika should've told her so that she didn't have to "stumble upon" her tryst with Rob.

"She wasn't around actually when it happened," Malika clarified. "She was on a road trip with her current husband [Lamar], so it actually happened when they were gone."

Still, Khloe was defiant in her stance on how her friend should've been upfront with her about hooking up with her brother.

"Yes, I should've known that you were having intercourse with my family member," she declared. "My brother! Him and I could be fraternal twins. No, you don't owe me an apology. What I'm saying is if I were to sit on your brother's d--k, I would be calling you afterwards."