Rob & Chyna airs Sundays (9 p.m. ET) on E!

By Aurelie Corinthios
September 27, 2016 11:30 AM

Big sister Kim to the rescue!

In a sneak peek at Sunday’s episode of Rob & Chyna, Kim Kardashian West takes a moment to teach soon-to-be dad Rob Kardashian how to swaddle a baby.

“You put their arms down – this how they sleep for months,” explains Kim, 35, who is a mother of two, in the clip released by E! News.

“So you make this into a triangle, and you go like this,” she demonstrates, wrapping a blanket around a baby doll. “Because they like to feel really tight, like they’re still in the womb, for a few months.”

Rob, who is expecting his first child with fiancée Blac Chyna later this year, then picks up the doll and repeats the steps as Kim coaches him through it.

“You did it!” Kim cheers. “Voilà!

“I’mma need plenty more swaddling lessons, but I’m definitely happy with the progress that I’m making,” Rob says. “I’m sure once I have my baby in my hands I’m going to figure it out and be a great dad.”

“Nothing will really prepare you for this,” warns Kim.

Rob & Chyna airs Sundays (9 p.m. ET) on E!