Kim Richards Gets Into Heated Altercation With Natalie Nunn on 'Mother Daughter Experiment'

A pretty intense moment on The Mother/Daughter Experiment: Celebrity Edition!

In a new clip from this week's episode of the Lifetime series, Natalie Nunn and Kim Richards can be seen getting into a heated exchange after Natalie tries to prevent Shar Jackson's daughter, Cassie, and Kim's daughter, Kimberly, from going to their room.

"They don't have to be excused by you," Kim commands.

EXCLUSIVE: Kim Richards Shares Her Final Words to Monty Brinson Before His Death

The exchange gets borderline physical, as seen in the video below.

While talking to ET about the incident last week, Kim admitted that Natalie "kind of she pushed my buttons."

WATCH: Kim Richards Blasted in Court for Hitting a Red Carpet in High Heels, but Not Completing Community Service

"When she said something to my daughter, she kind of pushed Kimberly a little bit," the Real Housewives of Beverly Hills star said. "You mess with my daughter, then here comes mama bear."

"I don't even think when those things happen, you know, because that's my daughter," Kim added. "Later I'm like, 'I could've died.' This girl's huge, tough, and I'm like, ‘What?’"

But Kim, who is still on probation due to her arrest last April at the Beverly Hills Hotel, pointed out that she and Natalie were able to move past the incident.

WATCH: Kim Richards Moves Into Condo in L.A.

"We yelled at each other and then she laughed later," Kim said. "She's a great girl. I actually really love Natalie. She's awesome."

During our interview, the 51-year-old reality star also opened up about her final words to ex-husband Monty Brinson before his death. Watch the video below.

EXCLUSIVE: Kim Richards Reveals Her Last Words to Ex Monty Brinson Before His Death

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