In American Crime Story: The People V. O.J. Simpson, there are glimpses of O.J. Simpson and Nicole Brown’s children together – Sydney Simpson and Justin Simpson, who were just 8 and 5, respectively, when their father was charged with their mother’s murder.

Sydney Simpson & Justin Simpson

Sydney, now 30, and Justin, now 27, made a rare public appearance over the weekend for their cousin Sean Brown‘s wedding to Laguna Beach star Casey Reinhardt, which was held in Newport Coast, Calif. The siblings sat in the front row at the nuptials beside their maternal grandmother Juditha Brown, and aunts Tanya and Denise Brown – the latter of which is Sean’s mother.

“Justin was in a celebratory mood and having a good time,” a source told E! News, adding that the Simpson kids were “very chummy” with their Aunt Denise.

In their adult years, Sydney and Justin have shunned the spotlight, living close to one another in St. Petersburg, Fla. There, Justin, who went to college at Florida State University, works as a real estate agent at Coldwell Banker. Meanwhile, Sydney, who studied at Boston University, runs her own company called Simpsy that builds productivity apps for businesses.

While neither Sydney nor Justin has commented on American Crime Story or the increased media attention on them because of it, family friend Khloe Kardashian has said that she feels badly for the two.

“How f–ked up that they … You’ll never get over your mom being murdered, and now they have to be stalked with paparazzi again?” Kardashian said on Kocktails With Khloé.

Sydney and Justin’s Aunt Tanya, however, isn’t too concerned about them. The siblings are “so grounded,” she told People.

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