Neither has said that they are officially engaged, but that hasn't stopped folks from speculating about how it's going to go down, given that Kardashian's sister Kylie Jenner is dating Blac Chyna's ex and the father of her son, rapper Tyga.
It appears that congratulations are in order for Rob Kardashian and Blac Chyna Blac Chyna posted a picture Tuesday on Instagram of herself sporting a diamond ring while holding the face of a grinning Kardashian, with the caption "Yes!!!