While some celebrities gush over their experiences after meeting a star from one of their favorite reality shows, Sarah Paulson isn’t one of them. Last year, the “American Horror Story” star, who is a “Real Housewives” fan, revealed she had an unpleasant experience when she met “Real Housewives of Beverly Hills” alum Lisa Vanderpump.

Although it has been a year since their unfriendly encounter, Paulson opened up about why she spoke about her uncomfortable moment with Vanderpump.

On Thursday, Paulson appeared on “Watch What Happens Live with Andy Cohen” where she reflected on her Vanity Fair interview, in which she was given a lie detector test.

During the questioning, the 45-year-old admitted that she wouldn’t miss Vanderpump, who left the series after Season 9. Paulson revealed that she “met her once at a party” and claimed the “RHOBH” star “wasn’t nice” to her.

Paulson told Cohen that she felt obligated to tell the truth about her feelings for Vanderpump. “I mean Andy, it’s that thing where you know, I’m a bit of an idiot in the sense that when I was having that lie detector test they truly strapped everything around me,” Paulson explained.

“The guy was sitting there and I felt somehow like if I didn’t answer the question properly that I was going to get in like — they were going to call me out anyway.”

The “AHS: Coven” star went on to say that she received backlash from Vanderpump’s fans following her confession but didn’t regret the comments she made.

“Listen bless the fans. Bless the people who have her back. That’s great. But there was a kind of vitriol that was like, ‘Wow. I didn’t say she was a terrible person.’ I simply said she wasn’t that nice to me. She wasn’t and that’s OK.

“It’s not a character assassination. It’s just she wasn’t that friendly,” she added.

Sarah Paulson
Pictured: Sarah Paulson attends the 2017 Time 100 Gala at Jazz at Lincoln Center on April 25, 2017 in New York City. Getty Images/Jemal Countess