Khloe Kardashian Rob KardashianBy now we all know that Kourtney Kardashian's belly is full of baby number three. So who is going to be the next K kid to give Mama Kris a baby to cuddle? Here's a name that probably wasn't on the tip of your tongue: Rob Kardashian.

But maybe it should be! Baby bro Kardashian dropped a mysterious tweet about spending the July 4th holiday with his "son." Don't bother hitting up Rob's Twitter; he's already deleted the bizarro comment, but he followed it up with this equally strange comment: 

Er, way to spin the blame on that one, Rob!

Naturally everyone is wondering what the heck Rob is up to, but here's one theory: in typical baby brother fashion, he's feeling left out of the fold. Kourtney's on baby number three, Kim's got North West, and even Khloe may or may not be working on making French Montana a papa.

Can you blame him for getting a little broody?

Then again, who knows ... maybe there's some secret love child out there, and Rob's testing the waters to see how fans will react. With this family, one never knows!

What do you think Rob meant by his tweet about his "son?"

 

 

Image via Khloe Kardashian/Instagram