Rob Kardashian tweets sister Kylie Jenner's phone number after a row over Blac Chyna

Just when we thought that all was well in Kardashian-Jenner land, Rob Kardashian goes and proves that things are still as frosty as ever.

Eek, can’t they all just get along?

The 29-year-old reality star shocked his 6.65million followers last night when he tweeted his 19-year-old sister, Kylie Jenner’s, mobile number, claiming that she hadn’t invited his pregnant fiance, Blac Chyna, to her own baby shower.

We somehow find this a little bit hard to believe, after all, what is the point in throwing a baby shower if you’re not going to invite the actual person that you are “showering”?

Still, Rob was absolutely fuming with Ky and wrote on the social networking website: “Kylie’s # +1 (818) 482-5859 I ain’t hacked either this is rob dog lol

“Didn’t invite the Mother of my child to a baby shower you all were trying to throw for me ? You all must have lost your damn minds [sic]”.

Neither Kylie or any of Rob’s othere famous sisters responded to his outburst but the number that he tweeted is now said to be “unavailable”.

Rob and Blac’s relationship sparked controversy when they went public earlier this year, with Blac previously slamming the entire Kardashian family after her ex, and the father of her first child, Tyga, shacked up with Kylie after they split.

However, it appeared as though the family had since made the effort to make amends with Blac, inviting her to family birthdays and posting selfies with her on social media.

Unfortunately, if Rob’s tweet is to be believed then all is not as it seems and there is still plenty of drama to come from their shocking relationship…