Kaia Gerber Hangs With Tommy Dorfman on 18th Birthday

Kaia Gerber walks arm in arm with one of her closest friends, Tommy Dorfman, while out in New York City on Tuesday (September 3).

The model, who just turned 18 yesterday, was all smiles as the two ran a few errands across town together.

PHOTOS: Check out the latest pics of Kaia Gerber

If you missed it, for her birthday, Kaia was on the cover of British Vogue!

In the issue, she opened up about her love life, and being more comfortable in front of a camera than at school.

FYI: Kaia wore a Meshki crop top.