Lisa Vanderpump says she doesn't understand why Lisa Rinna recently shared a nude selfie online.
"I just don't know why you'd want to," Vanderpump said.
"I mean, sure she looks great. I mean, she's tiny and she's toned. But I think my kids, even if I looked that good -- which I don't -- would say, 'Oh mom, what the hell are you doing?'"
Rinna made headlines for sharing a nude selfie Sunday following news Playboy will again feature naked women.
The television personality and mom-of-two appeared on the cover of Playboy in 1998 and 2009.
"It's back. I got scared then I said I'm 53 -- zero [expletive] given! Cheers to @playboy for going back to nudes," she captioned the photo.
"The female body is so beautiful, every size and every age. Be proud! #thefemalebodyisbeautiful #allshapesandsizes #loveyourself #loveyourbody," the star added.
Vanderpump and Rinna have co-starred on three seasons of "The Real Housewives of Beverly Hills," which airs Tuesdays at 9 p.m. ET on Bravo.
Vanderpump also addressed in the People interview reports she will leave the show after Season 7.
"You know, every year we talk about it. Last year I kind of thought it was my last season because they were so mean, and then I came back and I've had a great season."