Kim Kardashian & Paris Hilton -- In the Same Room!!!

Hell has officially frozen over, because former BFFs turned mortal enemies Kim Kardashian and Paris Hilton were both in the same room of the same Miami club on Thursday ... and no injuries were reported.

We're told It girl Kim and former It girl Paris -- along with their respective man lovers, Kanye West and Spanish model River Viiperi -- hit up Wall nightclub at the W South Beach and we're spotted engaged in an actual casual conversation with each other. Sources say there was even some laughing taking place.

Turns out this is the second time in recent weeks that the former besties have made nice. We're told K & P first hugged it out at a mutual friend's birthday in Vegas last month, where they were even spotted dancing together.