Jeff Bezos, Lauren Sánchez Wear Themed Outfits for Sydney Sweeney’s Birthday

Jeff Bezos and Lauren Sánchez Bezos know how to dress on-theme.

In Los Angeles, the newly married couple stepped out for Sydney Sweeney‘s 28th star-studded birthday party, which invited guests to embrace the event’s space motif. “[W]elcome to planet syd 👽🛸🚀,” the Euphoria actress captioned an Instagram carousel of photos from the party, which featured NASA decor and a birthday cake decorated with a starry sky.

Bezos, 61, included a nod to his space travel company, Blue Origin, by wearing a navy blue Blue Origin security jacket as well as black pants and black boots. Sánchez, 55, opted for a silver metallic mini dress with subtle boning that showed off her cleavage. She added silver drop earrings and a pair of oversized sunglasses.

Sánchez’s look coordinated with Sweeney’s outfit, a silver mini dress decked out with 3D stars and a corset-style bodice. The duo posed together in a photo included in actress’ Instagram post.

Scooter Braun was also in attendance. Earlier this month, PEOPLE confirmed that Sweeney and the 44-year-old record executive are “casually” dating. “She’s having fun with Scooter and enjoys dating him,” a source close to the Eden actress told PEOPLE.

According to the source, Sweeney, who actually turned 28 on Sept. 12, “had a great time celebrating her birthday with” Braun. “He’s easy to be around and an intriguing guy,” the source added of Braun. “[Sweeney] is back to work now though. She feels very blessed to have such an amazing career. She’s very focused and super hard working.”

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The source also noted that the Anyone But You actress and Braun were both guests at Bezos and Sánchez’s wedding in Venice, Italy back in June.

Sweeney broke off her engagement to Jonathan Davino, 42, in March after the former couple were together for some seven years. Braun, meanwhile, was married to Yael Cohen from 2014 until they separated in 2021 and divorced in 2022. The former couple shares three children: sons Jagger, 10, and Levi, 8, plus daughter Hart, 6.

As an insider told PEOPLE on Sept. 3, Sweeney is “not looking to get wrapped up in another relationship” at the moment, despite spending time with Braun in recent weeks. “She’s been clear about her goals for this year — it’s all about her career,” that source said. “She’s ambitious and very focused. She wants to make the most of every work opportunity that comes her way.”