While they were hitting the dance floor, their sister was being bound and gagged!

Kendall Jenner and Kourtney Kardashian were partying it up at L'Arc nightclub in Paris when they learned Kim Kardashian had been robbed at gunpoint, and they rushed to her side as quickly as they could.

Interestingly enough, reports claim Kimmy K's trusty bodyguard Pascal Duvier was not by her side because he was busy watching over her siblings during their night on the town. We bet that's the last time she lets her security out of her sight!

Kim posted a now-deleted Snapchat of Kenny and Kourt leaving her room to head to the club just moments before masked robbers broke in, and this incident has got to be making her think twice of documenting her every move on social media!