Bette Midler mocks Rob Kardashian and Kylie Jenner over complicated love connection

Bette Midler has mocked Rob Kardashian and Kylie Jenner while pointing out they could end up sharing a stepchild. The 70-year-old legendary performer has taken a swipe at the Kardashian/Jenner family again after only just finding out that Rob and Blac Chyna are engaged. 

Of course, it means if they get married he will become step-father to Blac's ex Tyga's son King Cairo while his half-sister Kylie, who is now dating the 'Rack City' rapper, would also become step-mother to the three-year-old if they got hitched. Taking to her Twitter account on Thursday night, Bette quipped: 'Rob Kardashian's engaged to the MOTHER of the child of Kylie Jenner's boyfriend? They'll share a stepchild? Somebody send me a chart!' she mused...