Dakota Johnson steps out with younger sisters Stella, 20, and Grace, 17 in Italy

The Griffith gene pool is no joke!

Dakota Johnson stepped out this week with her two younger sisters -- and they're beautiful blonde versions of their famous sib! Stella Banderas-Griffith, 20, is the daughter of Melanie Griffith and Antonio Banderas, while 17-year-old Grace Johnson both call Don Johnson dad.

Both ladies joined Dakota in Florence, Italy on Monday at the Gucci Cruise 2018 fashion show looking paparazzi ready: Stella wore an ivory mini dress with black bows while teenage Grace paired a gold silk top with matching pants. Despite their long blonde locks, there's a clear resemblance to Dakota, especially in the lips.

Little is publicly known about Stella and Grace, who've managed to largely stay out of the spotlight even though their parents and sister are global celebrities. They occasionally joins their family on red carpets, and in 1999 Stella (and Dakota!) appeared in "Crazy In Alabama" with Melanie.

Although Melanie and Antonio divorced in 2015, Stella's Instagram shows that the two are on good terms: A 2016 photo shows both parents sitting close together, chatting on a couch, as Stella lounges across the room. "Fam," Stella captioned the shot.

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A post shared by Stella Banderas (@stellabanderasgriffith) on Jul 27, 2016 at 9:14pm PDT

Dakota's next sure-to-be blockbuster, "Fifty Shades Freed," is in post-production -- so in the meantime, she has some free time to spend with her sisters! Most of the trip is under wraps, but Stella did post an envy-worthy photo of herself lounging in a bikini in Florence. Wish we were there...!