Season 12 of "Keeping Up with the Kardashians" premieres on Sunday, May 1, and by the looks of the first preview, this may be the most entertaining season yet.

During a sneak peak of the premiere episode, Kendall Jenner curses out her older half-brother Rob Kardashian for re-gifting her Christmas present to his then girlfriend Blac Chyna.

"Rob is dating someone that has kind of had a bad history with my family, and he fully re-gifted my gift," the model tells the cameras during an interview. "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."

Chyna has a long and tumultuous relationship with the Kardashian/Jenner family. The model and entrepreneur has a 3-year-old son with Kyie Jenner's boyfriend Tyga and is best friends with another Kardashian enemy, Amber Rose, who used to date Kim Kardashian's husband Kanye West.

After Kylie and Kendall freak out about Rob re-gifting Kendall's iPad, the two decide to call their brother and confront him over the phone.

"Yo, can I have my iPad back? No, Bible I want my iPad, my pen and my keyboard back," the 20-year-old tells Rob over the phone.

"What pen?" Rob asks Kendall.

"It came with an iPad, a pen and a keyboard and I want it all back," Kendall tells Rob. "Because if you're not gonna use it I have someone who actually is really dying for it!"

"One I'm annoyed, two I'm actually hurt that you re-gifted my f--king gift that I went out of the way to give you!" the 20-year-old model shouts at her brother.

Rob's argument is that the iPad was "the first time you've ever got me a gift your entire life," and he then tells her she was "hilarious"

"Buy it yourself, you moron!" Rob tells Kendall.

Tensions between Chyna and Rob's sister have since cooled off after since he proposed to her. Kylie and Chyna took a selfie together claiming that they've been best friends the entire time, and Kim was recently seen going out to lunch with her brother and his bride-to-be.

"Keeping Up With the Kardashians" Season 12 airs on E! Sunday, May 1, at 9 p.m. ET.,