Because the two women aren’t talking in real life, the producers concocted a concept that has them separately filling in for a married pregnant woman with a young daughter.

“I’m the nice one; she’s the evil one,” Hilton tells the wife at one point of Richie.

The wife gives each of them a list of chores, ranging from taking care of the daughter to filling the dishwasher.

Richie, in full floozy form, asks if she should take care of hubby, too. “If you want me to sleep with him, let me know,” Richie says. “How am I supposed to be pregnant if I don’t sleep with your husband?”

The wife gasps. Viewers will, too, wondering why they stayed so long…

Nevertheless, the show goes downhill from there.

At one point, Nicole takes the husband to a strip club, and, oh, surprise, she gets the wife on the phone while he’s surrounded by flesh. She also straddles him during Lamaze class to demonstrate sex while pregnant.

And after ordering pizza for her Lamaze class, Hilton acts like she’s going to puke while watching a movie of a woman giving birth.

“This is a natural process,” the instructor tells Hilton, barely holding back a laugh.

The fact is, the instructor might be the only person to laugh at this show. Most people might feel like Hilton watching the birthing movie.