A young Kim Kardashian once said she’d never put a bumper sticker on a Bentley when asked if she had any tattoos. Nearly 15 years after delivering the iconic line on The Wendy Williams Show, the reality star has confessed to getting some secret ink on the most recent episode of The Kardashians.

The shocking revelation comes during Kardashian’s conversation with her hair stylist Chris Appleton about his upcoming wedding with The White Lotus star Lukas Gage on the Season 4 episode titled “A Short-Term Fight.” After the couple asks her to officiate their Las Vegas-based wedding, she suggests that they see Usher’s concert and get tattoos once the ceremony is over.

While Appleton is fully on board, Kardashian shuts down the idea of getting a tattoo herself. The conversation then prompts her to publicly admit for the first time that she got an infinity sign tattooed on the inside of her lip last year.

“You guys, something you don’t know about me,” she says as she pulls down her lip and flashes her tattoo. “When I hosted [Saturday Night Live], me and all my friends got matching tattoos. Everyone got them on their hands. I was like, ‘There’s not a shot I will get a tattoo.'”

In a flashback video from the spontaneous outing, Kardashian tells the camera, “This is how you celebrate SNL — with a little tattoo at 4:30 a.m.”

According to the Skims founder, no one knows she has the ink — and since it’s so hidden, even she forgets it’s there sometimes.

“No one knows. No one sees it. I forget,” she explains on the show. “But every once in a while, I’ll be flossing my teeth and I see black and I go, ‘[Gasp], what’s this black?’ I’ll be like, ‘Oh, it’s my tattoo.'”

She cheekily adds, “I finally put a bumper sticker on a Bentley.”

New episodes of The Kardashians air every Thursday on Hulu.