Blac Chyna's mother has poked fun at the Kardashian sisters and says they'll never be invited to her daughter's wedding.

Blac Chyna

Blac Chyna

Tokyo Toni has shot to the defence of the 27-year-old model, who got engaged to the siblings' brother Rob Kardashian earlier this week, by mocking up a picture of them in tears as they hold onto Blac's wedding dress, and blasting them as "reality h**s" who are "boxed or botched".

In a post on Instagram attached to the Photoshopped picture of Kim Kardashian West, Kylie Jenner and Khloe Kardashian crying while holding onto Blac's wedding dress train, Tokyo wrote:"This is funny!! However!! Her train would be so long they assess would be in the Michigan triangle holding it and miss the wedding!! That's how far back they will be!! " Shots fired" oh well!! It's social media!! And all these reality h**s are " Boxed or botched!!. Bonus - You not even going to be invited! I didn't see the invitation ! Ps' To all her fake ass friends!! " Oh b***h I see you and NO b***h will ever plan my daughters wedding but "Me" or her! #ps or her bestie - Whoever that is? (sic)"

Blac's mum also appears to poke fun at the sisters for their Armenian heritage.

She added: "PS -,they are Armenian so no blonde hair blue eyes over here wheneva they do have a kid!! Let's get it poppin now!! Lol!! Okay whenever y'hall ready but get the point (sic)"

Rob's family are said to be less than thrilled about his engagement, and are reportedly unconvinced it will last as he has previously professed his undying love for exes Rita Ora and Adrienne Bailon, and even told his relatives he had proposed to them, though no engagement announcements were ever made.

A source recently said: "No one [in his family] is jumping up and down with excitement today. They have made a united decision as a family to not comment on social media yet about Rob's engagement. The news is not shocking, and not totally unexpected.

"There has been a fear that Blac Chyna is manipulating the situation with Rob. That he is getting himself into a situation that is not ideal for him. Blac Chyna has been great as kind of a rebound."

Despite this, Blac's former fiancé and father of her three-year-old son Tyga - who is now dating Kylie - insists he is happy for the couple.

He tweeted: "Everybody deserves 2 be happy. What some1 does for their happiness is not my concern, as long as it's not interfering wit my happiness.

"It makes me happy to see the mother of my son happy.My only concern in this situation is my son. I want him in happy environments (sic)."