The actress stopped by the "Late Late Show with James Corden" this week, where she showed off her new ink and revealed her family's fellow love of tattoos.
Check out the clip above to see how her mom helped her with the new piece!
Stewart just recently got the now-permanent tat -- the same one she temporarily rocked while filming her new flick "Clouds of Sils Maria" -- and showed off her ink to Corden during their interview.
"I had it for two months, so it's a perfect little test drive," Stewart said about her arm piece.
While the 24-year-old actress is no stranger to tattoos, she recruited the help of her mom for this particular addition.
"My whole family's really tatted, and for years and years I was like 'I do not need that,'" she explained. "'I'm pure, and I stand alone.'"
"Then I was like … 'Mom, can you call your tattoo artist?' It was a sweet little experience," the brunette beauty confessed.
Talk about some special mother-daughter bonding time -- what do you think about Kristen's new tattoo? Tell toofab in the comment section below and click "Launch Gallery" above to see more celebs with ink!