Kourtney calls Kim 'evil human being' in released teaser clip

Kim Kardashian called her sister Kourtney the 'least exciting to look at' in an explosive argument featured in a recently released teaser clip.

Another new clip was released for Sunday's season premiere of Keeping Up With The Kardashians season 15 on Thursday in which 39-year-old Kourtney brands her younger sister 'an evil human being.' 

The previous clip released showed Kourtney arguing with 37-year-old Kim as they tried to sort their hectic schedules for their yearly family Christmas card which ended with the younger throwing epic shade at the fellow mother-of-three.

Now the latest teaser shows Khloe, 34, calling Kourtney to try to resolve the issue with Kim and 62-year-old momager Kris in attendance. 'I’m not here to be mistreated by my f***ing b**** family" Kourtney said.

Kourtney throws a haymaker right a back as she gets personal by saying: 'You’re a very distraught, evil human being.

'I don’t want to see you, okay? I don’t agree with who you are as a human being.'

The middle Kardashian sister pulls no punches as she says: '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***.' 

Kris intervenes and makes Kim apologize but her older sister was not having it.

'No, f*** you, Kim,' Kourtney said. '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 said.