But First, Coffee
Kaia and Austin were spotted hanging out together on Feb. 14.
Cafe Couple
The two visited a cafe in the Primrose Hill neighborhood on London.
Well Caffeinated
Both Kaia and Austin stepped out with coffee and pastries in hand.
Bundled Up
For the outing, Kaia wore a long tweed coat, black sweater, dark pants and sneakers.
A Brisk Stroll
The supermodel accessorized her look with a blue knitted hat, sunglasses and a leather purse.
Stepping Out
Meanwhile, Austin kept warm in a navy blue coat.
Under His Umbrella
The Once Upon a Time in Hollywood actor looked like he was prepare for rain as he carried an umbrella in his arms.
London Lovin'
An eyewitness told E! News that the couple "looked really happy and very comfortable with one another" during the outing.
Here's Looking at You
The pair sat at a table in side across from one another as they waited for their order, according to the insider.
Be My Valentine?
"Austin had his hands across the table and it seemed they may have been holding hands while they waited," the eyewitness said.
A Walk to Remember
With snacks in hand, the pair were spotted heading in the direction of a local park.