'Baby boot camp!': Rob Kardashian and Blac Chyna..!!!

'Baby boot camp!': Kim Kardashian stresses out brother Rob as she tells him what to expect when having a newborn in new Rob & Chyna teaser...!!

Her younger brother will soon be welcoming his first child with fiancée Blac Chyna, 28.

And in a new clip for reality series ''Rob and Chyna'', Kim Kardashian tried to prepare the 29-year-old as she could be seen putting him through a 'baby boot camp.'

Rob Kardashian seemed a bit overwhelmed throughout the demonstration, particularly when his sister, 35, gushed: 'You know when the baby's first born they, like, poop out tar.'

Kim looked laid-back in a loose-fitting black T-shirt from husband Kanye West's Pablo line, though she styled the top with thigh-high, lace-up boots.

Kim Kardashian,the mother-of-two wore her hair pulled back into tight braids, and she seemed to be enjoying herself as she put her brother through the 'boot camp.'

The two were seen working with a baby doll as Kim seemed to be demonstrating how to swaddle and change a baby..!!

Kim had a baby doll on hand as she tested Rob to prepare him for the soon to arrive bundle of joy and happiness.

Confused, Rob seemed a bit taken back at first as Kim revealed her 'baby boot camp' set up.

'The baby will be throwing up on you,' Kim shared, leveling with Rob as she added: 'You need sanitizer at all times.'

The dad-to-be, who wore a plain, black T-shirt and blue baseball cap, looked overwhelmed as Kim ran down her laundry list of warnings.

At one point he was seen pulling off his hat and wiping his brow, seemingly stressed by the situation.

The baby doll which was used as a test baby was dressed in pink as revealed on the premiere of 'Rob and Chyna' that the couple were expecting a baby girl..!!

'Wait, what?' Rob gasped, confused, as Kim shared her gross warning about what he should expect when changing his newborn baby's diaper.

The teaser comes after an episode which saw Chyna's mom Tokyo Toni warning Rob about calling his impending baby girl as 'your baby' when talking to the model.

'Your baby or 'our baby?'' Toni had asked, tearfully advising him: 'You've got to stop what you're doing. She's a strong woman. I didn't have anything to give her. She don't need a baby with no father. Do you understand me? You can't do what you're doing or you'll ruin it.'

Giving it a go! The dad-to-be seemed nervous as he tried to take a turn in the 'boot camp' ... Sharin her wisdom, Kim, who shares three year old daughter North and nine month old son saint with husband, Kanye West, seemed happy to pass her knowledge along to her brother.

Rob and Chyna had announced the star's pregnancy back in May, later revealing on the premiere episode of their E! reality series, Rob & Chyna, that they were expecting a girl.

This will be the first child for Rob, though Chyna - real name Angela Renee White -  already shares three-year-old son King Cairo with ex Tyga (who is currently dating Rob's sister Kylie Jenner).

Chyna, who has eight weeks to go in her pregnancy, recently took to Snapchat to talk about the differences between carrying King and her baby girl, also dishing that she already had a name picked out. 

'Yes, I have picked out a name. Me and Rob both love it - it's super girly and you'll never guess what it is,' she teased.

The couple's E! series Rob & Chyna airs new episodes Sundays at 9pm.. 

 Enjoy..!!