'Kylie, that’s f***ed up!': Khloe Kardashian lets her sister know what choosing Tyga over family means in KUWTK sneak peek

Family has always been central to the Kardashians.

So it's not surprising older sister Khloe, 31, was unimpressed with sister Kylie Jenner's behavior at the 18-year-old's own Fashion Week party.

Instead of hanging out with all the Kardashian sisters, Kylie made the questionable move of leaving the event with then boyfriend Tyga.

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Trouble brewing: Kylie Jenner's behavior at her own Fashion Week party got sister Khloe Kardashian mad

Trouble brewing: Kylie Jenner's behavior at her own Fashion Week party got sister Khloe Kardashian mad

Things start out positive enough, with Kylie explaining in an interview how the party was in celebration of her cover she did for Galore magazine that was released during Fashion Week in New York.

Kendall, 20, could barely contain her excitement in her interview voice over, exclaiming 'It’s really exciting because it’s Fashion Week, and all my sisters are here, which has never really happened before.'

When even the newly single Kourtney, 36, makes a belated appearance, Kendall is so excited she spills a beverage, her and before Kylie scream with delight.

First time for everything: Kendall, 20, could barely contain her excitement in her interview voice over, exclaiming 'It’s really exciting because it’s Fashion Week, and all my sisters are here, which has never really happened before'

First time for everything: Kendall, 20, could barely contain her excitement in her interview voice over, exclaiming 'It’s really exciting because it’s Fashion Week, and all my sisters are here, which has never really happened before'

Everybody's here! When even the newly single Kourtney, 36, makes a belated appearance, Kendall is so excited she spills a beverage, her and before Kylie scream with delight

Everybody's here! When even the newly single Kourtney, 36, makes a belated appearance, Kendall is so excited she spills a beverage, her and before Kylie scream with delight

Just as things are looking rosy, Kylie's boyfriend at the time, 26-year-old rapper Tyga, takes her aside and proposes moving to another club.

Without thinking twice, Kylie finds her sisters and quickly proclaims 'I'm leaving!'

Khloe makes a desperate plea for her to stay, before things turn somewhat nasty.

'Always lecturing':  In her own interview, Kylie reveals she finds that 'It's kind of frustrating when my older sister is always lecturing me'

'Always lecturing':  In her own interview, Kylie reveals she finds that 'It's kind of frustrating when my older sister is always lecturing me'

“Don’t leave. I never go out! I only came for you,” she cries, suggesting in the corresponding voice over that they finally got Kourtney out and they should 'keep the party train going,' as a family. 

Tempers wear thin as Khloe simply states that what Kylie is doing is 'f***ed up.'

In her own interview, Kylie reveals she finds that 'It's kind of frustrating when my older sister is always lecturing me.'

They're supposed to stick together: “Don’t leave. I never go out! I only came for you,” Khloe cries, suggesting in the corresponding voice over that they finally got Kourtney out and they should 'keep the party train going,' as a family

They're supposed to stick together: “Don’t leave. I never go out! I only came for you,” Khloe cries, suggesting in the corresponding voice over that they finally got Kourtney out and they should 'keep the party train going,' as a family

Bad idea: Just as things are looking rosy, Kylie's boyfriend at the time, 26-year-old rapper Tyga, takes her aside and proposes moving to another club

Bad idea: Just as things are looking rosy, Kylie's boyfriend at the time, 26-year-old rapper Tyga, takes her aside and proposes moving to another club

She then proceeds to brush off her older sister with 'I'll find you later.'

Without another word, Kylie unceremoniously exits with her beau, leaving Khloe annoyed as the party continues. 

The next episode of Keeping Up With the Kardsahians airs on E! on Sunday, January 10. 

Bad blood? Without another word, Kylie unceremoniously exits with her beau, leaving Khloe annoyed as the party continues

Bad blood? Without another word, Kylie unceremoniously exits with her beau, leaving Khloe annoyed as the party continues

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