Blac Chyna's son has met his new sibling Dream.

Four-year-old King Cairo - who Chyna has with her ex-partner Tyga - visited his mother and his new step-sister Dream at the Los Angeles hospital on Friday (11.11.16).

And Rob Kardashian was there to welcome King to the suite alongside his family and friends and Chyna's closest pal Amber Rose and her son Sebastian, three.

King even helped Chyna to feed the little girl with a bottle, E! News reports.

The Kardashians have constantly been around the couple ever since they welcomed Dream into the world on Thursday (10.11.16) with Rob's mother Kris Jenner even there to witness the birth.

She shared: ''I got to watch [the] delivery. It was so beautiful and I'm so excited and happy to have another grandchild! It was one of the most precious moments of my life.''

And things are said to be going well for Rob and Chyna, with a source revealing they are in a ''great place'' now.

A source shared: ''Rob was so supportive of Chyna. He was encouraging her and being so sweet.

''Everyone was so touched by how emotional he got ... Rob and Chyna are so happy. They're in a great place. The plan is for the baby to come back to Chyna's - Rob will be there too. He is already in love with his daughter.''

Meanwhile, Rob took to his own social media account to admit he was ''so lucky'' to have his little girl in his life.

He wrote: ''Today was amazing I am so lucky!! Thank you @blacchyna for having our baby and being so strong !

''I love you so much and can't wait to see her get older day by day with you Chy! I love you and Dream so much and Appreciate both of you. I know everyone saying that's my twin but that's def your nose Chy lol (sic)''