The key emoji in the caption could be a reference DJ Khaled's tagline: the Snapchat celeb often uses the emoji to represent the "Major Keys" to happiness and success. It appears Rob may be claiming that Chyna is his major key to both.

Others wonder whether it means the two are taking the next step forward and moving in together.

Kardashian's post seems to be in response to a picture older sis Khloé tweeted last night. The snap of the Kardashian girls threatened anyone messing with "the family." And we have one guess as to whom that message is geared toward.