Austin Butler and Kaia Gerber showed off their burning love on the red carpet. 

In fact, the Elvis star and model—whose romance was made public in 2022—were spotted sharing a sweet kiss during the premiere of his new movie The Bikeriders, which hits theaters June 21. 

In a clip from the June 18 event in Los Angeles, Austin, 32, was seen making his way through the crowd to Kaia, 22, who sported long pin-straight hair and was clad in a short black dress. The Bottoms actress greeted him with an excited smile before he leaned over for a kiss on the lips. 

And while the smooch marks a rare moment of PDA for Austin and Kaia, they're certainly no strangers to attending events as a couple. After all, they made their red carpet debut at the 2022 Met Gala, where Kaia stunned in a floor-length Alexander McQueen gown and Austin rocked an all-black Prada suit. Since then, they've also turned a handful of other major public outings into date nights, including Vanity Fair's 2023 Oscars after-party and the 2023 TIME100 Gala. 

Still, there are parts of their relationship that will always remain between them. As Kaia put it to WSJ. Magazine back in February, "Honestly, I feel like so few things in my life are private, and that is one of the things that I try to keep as sacred as possible."

For the daughter of Cindy Crawford and Randy Gerber, maintaining that sense of privacy is key to building a healthy foundation for a relationship. 

"You have to silence the outside world," she told i-D in 2020. "The only people who know anything about anything are the people in the relationship. The public is very loud, so you have to make your own feelings even louder."

Read on to revisit the full timeline of Kaia and Austin's love story... 

The 2022 Met Gala on May 2, 2022, was their highest-profile date yet. Gerber donned Alexander McQueen for the occasion while Butler's threads were by Prada.

Gerber and Butler only had eyes for each other at the May 25, 2022, premiere of Elvis at the Cannes Film Festival.

They make for a striking pair at W Magazine's Annual Best Performances Party on Feb. 24, 2023

Butler didn't get the Oscar in 2023 but he got the girl at the Vanity Fair afterparty.

The couple visited with the young patients at Children's Hospital Los Angeles in April 2023.

The cool kids take their time making an entrance at the TIME100 Gala on April 26, 2023, in New York.

Butler made TIME's list of the 100 most influential people of 2023.

For the latest breaking news updates, click here to download the E! News App