Kourtney Kardashian

It's a complicated situation, but Kourtney Kardashian is finally cool with Sofia Richie.

Both gorgeous women went on a group vacation with Scott Disick for the sake of Kourtney and Scott's three young children.

When the world first learned that Scott Disick is dating Sofia Richie, it was widely assumed that the relationship would be yet another one of the Lord's short-lived flings.

But against all odds, Scofia is still a thing.

It may be a new year, but Kourtney Kardashian is trying hard to maintain her old figure.

The mother of three simply can't afford to let herself go, not when she's 39 and Sofia Richie is 20 and Kourtney has to compete with her ex-boyfriend's lover on a near-daily basis.

Remember Younes Bendjima?

If you do ... well, sorry.

So, ya got any big plans for New Year's Eve?

Well, as excited as you might be about the idea of popping a bottle of Spumante and enjoying a midnight toast with your parakeets, it seems the Kardashian-Jenner family has outdone you yet again.

The Kardashian family is different than most families.

And that is true for many, many reasons.

While Scott Disick flaunting his relationship with Sofia Richie has caused some problems in the past, things with Kourtney Kardashian are okay these days.

Actually, it's better than okay, since he went with his girlfriend and ex to vacation in Cabo with their kids.

The holiday season is all about customs and traditions.

Presents, eggnog, children's letters to Santa, the annual debate about whether or not Die Hard is a seasonally-appropriate film ... and of course, the annual Kardashian Christmas card.

Against all odds, Scott Disick and Sofia Richie have been dating for over a year now.

While the age gap remains more than a little creepy (Scott is 35; Sofia is 20), most folks in the couple's inner circle have grown accustomed to the romance.