AceShowbiz -

Khloe Kardashian is among those who are not impressed with Rob Kardashian and Blac Chyna's relationship. The "Kocktails with Khloe" host revealed during the season 12 premiere of "Keeping Up with the Kardashians" a shocking event which left her fuming.

The 31-year-old star chronicled how she found out that her brother was in a relationship and she clearly wasn't happy with it. "Do you want to hear the craziest story?" Khloe asked Scott Disick in the Sunday, May 1 episode. "Rob was asking what time I would be home and [when] I got home 30 minutes earlier than the time I told him I was coming home, I walked in on him with Blac Chyna at my house," Khloe continued. Surprised by the news, Scott spit out his food as he said, "Excuse me?"

"There's alcohol everywhere. He's having the time of his life. Don't you dare make me feel uncomfortable in my own home," Khloe added. "I don't really care who Rob dates but having Chyna over at my house without my knowledge is disrespectful."

Lamar Odom's estranged wife said that it would be better if Rob told her the truth. "Why can't he be honest with me and communicate because Robert knows Chyna's Tyga's ex-girlfriend and I just don't want that drama in my personal space," she said. Scott then replied, "I told him, I said you've burned your last bridge. But really what a f**king nightmare."

Khloe wasn't the only one who wasn't happy with Rob and Blac's relationship. Kendall Jenner was furious after she found out that Rob re-gifted an iPad from her to Chyna. "Rob is dating someone that has kind of had a bad history with my family and he fully re-gifted my gift," Kendall said of Chyna. "On top of it, it's so annoying to find out through social media because his girlfriend posted it. Like, there's some things that just aren't cool and I don't think this is very cool."