We knew something was up when the Kardashian sisters were mum on social media regarding Rob Kardashian and Blac Chyna's engagement — but what we didn't know was that one of the sisters was behind all of it!
In a clip from Sunday’s Keeping Up With the Kardashians, Khloe tells her sisters Kim, Kourtney, and Kylie not to congratulate Rob and Blac on their engagement!
"No one should congratulate them," Khloe says. "That's so desperate and fake of whoever does first because I know someone's gonna break."
As OK! previously reported, Rob’s proposal to Blac came as a complete shock to the reality TV star family, as he had never discussed it with them prior and only found out through social media.
Watch the full clip above to see the heated talk!