The 34-year-old reality star and 19-year-old model mingled with other guests at the event, and were seen throughout the night kissing and chatting. Other celebrities at the soiree, which included Whispering Angel spirits, were supermodel Karolina Korková, former Late Show band leader Paul Shaffer, director Michael Bay, former MLB player Sammy Sosa and NASCAR star Jeff Gordon.
While this is their first public event together, Disick and Richie have been spotted on several tropical vacations over the past few months.
In October, a source told ET that the two “are still going strong” and “having a great time” after PDA photos of them surfaced a month prior. According to the source, it’s unclear how “serious” their relationship is, but they’re “happy and having fun for now.”
Here's more on the celebrity couple, including what Disick's ex, Kourtney Kardashian, thinks of him dating: