It seems like reality TV stars Kourtney Kardashian and Scott Disick love to pull the family's leg as the friendly exes joked about having a fourth child in the season 19 finale of Keeping Up with the Kardashians .
The duo already has two sons Mason, 10, and Reign, 5½, as well as one daughter Penelope, 8.
It was during Scott's 37th birthday celebration when Kim Kardashian West, 40, chimed in asking what he meant when he sent a photo in a group chat.
"Is it like, the elephant in the room — that photo that you guys posted in our group chat?" Kim said.
"Scott's like, 'We're going for baby number 4.' Was that a joke or is that serious? I want to know," she added.
"Are you really having a baby?" said Khloé Kardashian, 36.
Kourtney proceeded to carry along with the joke, as she pulled up her shirt and pushed out her stomach to replicate a growing baby bump.
"What do you guys think? Look!" Kourtney said.
"Stop, you just pushed that out," mom Kris Jenner said.