Rob Kardashian Blindsided Family With Blac Chyna Engagement; Tyga Thinks It's a Joke

Rob Kardashian's family was absolutely clueless that he was planning to propose to his girlfriend and his sister Kylie Jenner's No. 1, Blac Chyna, according to a report. So did he really just make things official, or is this a leftover April Fools' prank, as Tyga thinks?

TMZ reported that the Kardashian-Jenner clan had no idea that the 29-year-old only son of Kris Jenner was planning to propose to Chyna. The site noted that Rob waited until his famous family was out of town on vacation to pop the question to Tyga's baby mama.

The 27-year-old model and former exotic performer posted a photo that definitely raised some eyebrows. She was seen sporting a massive diamond ring on that finger and captioned it: “YES!...!...!”

A photo posted by www.Lashedbar.co (@blacchyna) on Apr 5, 2016 at 12:19am PDT

Tyga was shocked that his on-and-off girlfriend's brother and his former fiancee are tying the knot. The rapper doesn't even believe that Chyna is serious with Rob, and he thinks that she's nothing but trouble.

“Tyga has now seen it all. He got the news of Blac and Rob’s engagement and he’s stunned. He’s hoping it’s a late April Fools’ Day joke because if it’s not, this is going to be one big mess for everyone," a source told Hollywood Life. "No doubt, he thinks Blac is an opportunist. He feels the real reason she’s even with Rob in the first place is so she can piss off his sisters."

Rob and Chyna started dating in January and have been inseparable ever since. Many have attributed Rob’s recent confidence boost to his new romance, but clearly, his family and Tyga doesn't see any benefits of this relationship.