The ​Kardashians never disappoint when it comes to drama, and this time it's between Kim and Kourtney. ​

In a clip from Sunday's season premiere of Keeping Up with the Kardashians, ​Kourtney and Kim's drama, which stemmed from Kim trying to plan their family Christmas card photoshoot, just keeps escalating.

​​When Kourtney isn't as cooperative with her schedule as Kim had hoped, she calls Kourtney ​"the least exciting to look at," which pushes the latter to her to her breaking point. 

The clip starts just after this jab from Kim, when Khloé calls Kourtney to try and fix things. 

On the call, Kourtney says, “I’m not here to be mistreated by my f*****g b***h family. Kim saying that I’m the least interesting to look at — who even speaks like that? You don’t say things like that. You guys just have really different values than me. I choose to be a mother to my three kids. I’m not here looking for another job. I already work enough — more than I would like to.”

In the middle of the call, Kim returns, and before Khloé can take her phone off speaker in an attempt to prevent further damage, Kim wrestles the phone out of her hands screaming, “You don’t do s***! You would honestly think that we have more jobs, so [you should] work around our schedule. You do whatever the f*** you want to do and you don’t do s***, so be accommodating to the people that actually do s***.”

That's when Kourtney fires back, calling Kim "a distraught, evil human being."

At this point, mom Kris Jenner intervenes and tells Kim to apologize, but Kourtney is not having it. 

“No, f*** you, Kim, you meant it. So f*** you. I am not going to live my life around people that make me not feel good on a daily basis," Kourtney says. 

After a bit more back and forth between the sisters, Kim gets fed up and exclaims that she's just going to do the Christmas card photoshoot alone with her husband, ​Kanye West, and their kids, North, Saint and Chicago.

Can you say drama? And the season hasn't even premiered yet!