The year 2015 has been quite challenging for Kris Jenner's only boy. While Rob Kardashian has been in hiding since his weight gain, that didn't seem to stop him from reportedly throwing parties at Khloe Kardashian's house. Lamar Odom's ex made the revelation when she complained to Kim about their little brother's behavior.

According to the clip from "KUWTK," per Hollywood Life, Khloe Kardashian apparently arrived to find out that her house has been trashed by Rob Kardashian and his friends.

"Khloe, 30, is cleaning up her house when Kim Kardashian comes over and asks what happened!" the article said. "Khloe tells Kim that even though Rob, 28, won't socialize with the family, he has parties at her house and she can't stop him from inviting all these 'wh*res' over to her place."

Lamar Odom's ex then claimed that she had to clean vomit from the place because of the uncontrolled partying by Rob Kardashian, who was reported to have shunned off contact with the rest of the family after his weight gain.

Earlier this 2015, Kim Kardashian revealed the possible reason for Rob Kardashian's weight gain in an interview with Matt Lauer for the "Today" show.

"I think he's just going through a phase where he's not comfortable in his own skin, and he is working really hard to get back to where he really wants to be," she said per E! Online.

Kim Kardashian said that Rob Kardashian had been through so much the past year, which contributed to his weight spiraling out of control.

"I think it's been circumstances in his life that he just really hasn't dealt with," she explained.

"Whether it's, you know, the loss of our father, or certain breakups, or, you know, he was extremely close to Lamar [Odom] and when, you know, Khloé and him broke up, that was really hard on him. So I think it was a couple things."

Khloe Kardashian and Lamar Odom split in 2013 but recent reports alleged that they are open to getting back together as they haven't followed through with their divorce.