The WHOLE Kardashian clan is in Aspen -- and even some unlikely suspects!

The often absent Kendall Jenner was there in FULL FORCE -- posing for a sexy selfie in a string bikini in the snow! Kourtney followed suit and topped it off with a metallic puffer jacket.

Paris Hilton was just at the Kardashian Christmas party and now she's hanging with her old BFF and the fam in the snowy A-list hotspot.

Also along for the ride is Sofia Richie, but at this point we're not surprised since she joined boyfriend Scott Disick and Kourtney Kardashian on a family trip to Cabo just a week ago. And of course Sofia, being Paris' BFF Nicole Richie's little sis, is chilling with Paris, too since they've known each other forever. And Paris ran into Rebel Wilson at a local restaurant and they selfied up ...


Speaking of stuff that's awkward for Kourtney, her ex Younes Bendjima posted an end-of-year message honoring his former girlfriend and their time together and even speculating about the future ... "Let’s not forget about this beautiful woman inside and out. I’m not the type of man that forget [sic] moments like that. You [sic] an amazing woman and mum and I hope you will find happiness for you and your childrens [sic] ... it’s all love at the end of the day we don’t know what can happen tmw so there you go."

Hmmm ...