Kaia Gerber walks side by side with BFF Tommy Dorfman while out in Paris, France on Monday afternoon (September 23).

The 18-year-old model and Tommy caught up with her mom, Cindy Crawford, for lunch at L’Avenue, ahead of the start of Paris Fashion Week.

PHOTOS: Check out the latest pics of Kaia Gerber

Just the week before, Kaia was seen walking in a ton of fashion shows during Milan Fashion Week including Moschino, Versace and Prada.

Tommy also flew out to Milan to check out the Fendi show.

Photos: BackgridUSA

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