Kim Kardashian is back to hanging out with her baby bro and his fianceé/her former BFF.
Kim was hanging with Rob Kardashian and Blac Chyna Tuesday morning in Bev Hills -- only the second time we've seen Kim and Rob together since before her wedding ... 2 years ago!
We broke the story ... Kim played peacemaker in the family rift over Rob's shotgun engagement by having a sit down with her old pal Chyna.
So who's the third wheel? We'll call it one big happy family. For now.
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