Andy Cohen asked Erika Girardi if she was wearing underwear on Tuesday night’s Part 1 of “The Real Housewives of Beverly Hills” reunion episode.

She was, but Lisa Rinna was not.

Aside from going commando, Rinna and Girardi also have “Dancing with the Stars” in common. Girardi is a current contestant on the ABC show Rinna competed on in Season 2.

Lisa Vanderpump also competed on “DWTS” in Season 16. She and Girardi shared the same partner, Gleb Savchenko.

The conversation quickly turned toward Erika’s “meltdown” in Hong Kong, specifically when she attacked Eileen Davidson for saying, “It’s not like Dorit killed your son.”

A much calmer Erika apologized for overreacting and admitted that her reaction to Eileen was unmerited.

But she wasn’t as kind to Dorit’s husband PK, who joined the ladies to discuss the goings on of Season 7.

“I’m not calling [Dorit] a nasty person. I’m calling you a nasty person,” Erika said to PK while he was attempting to defend his wife’s Pantygate intentions for the umpteenth time.

Lisa Vanderpump apologized to Eileen for a long-standing grudge that seemed to simmer down when Eileen joined Lisa and Kyle Richards in Hong Kong for a viewing of Vanderpump’s documentary “The Road to Yulin.”

And despite Vanderpump’s beef with Rinna, the two shared a moment when they bonded over the tragic loss of their friends Terry and Pam Bailey, who passed away in February when their helicopter crashed in Desoto Parish.

A common theme this season was amnesia, and it happened to strike Rinna again during the reunion when she “forgot” ever having said Dorit’s “British, Australian, South African, whatever” accent was fake.

But per usual, Bravo played back the clips.

“The Real Housewives of Beverly Hills” airs Tuesday nights on Bravo.

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