Austin Butler did not leave girlfriend Kaia Gerber lonesome on Golden Globes night.

The model, daughter of Cindy Crawford, joined the actor at an after-party following the Jan. 10 ceremony, where he won the award for Best Performance by an Actor in a Motion Picture – Drama for his portrayal of the late Elvis Presley in Baz Luhrmann‘s film Elvis. Wearing a sleeveless black gown, Gerber, 21, and Butler, 31, were photographed hugging and sharing a passionate kiss at the bash, which they left together later in the night.

The actor had attended the Golden Globes ceremony—his first—with his older sister Ashley and gave her a shoutout during his acceptance speech. He also thanked his dad and his late mother.

“My sister is here with me tonight. Ashley, I love you so much,” he said. “I want to thank my dad, who is watching at home. I want to thank my mom, who I know is smiling down right now. Mama, I love you so much. Thank you for sacrificing so much for me.”