August 10, 2015 11:00 PM

Jeff Kravitz/FilmMagic

A Barely Famous star has some big news: She’s pregnant — again!

Sara Foster is expecting her second child with Tommy Haas, PEOPLE confirms.

The duo are already parents to 4-year-old daughter Valentina.

The former 90210 actress, 34, currently stars on the VH1 show Barely Famous alongside sister Erin, 32. The show playfully parodies Hollywood and reality TV — territory the sisters know well.

The pair’s father is mega-producer David Foster, which makes their step-mom Real Housewives of Beverly Hills star Yolanda Foster. Ex step-brothers include Brandon and Brody Jenner.

Foster’s famous friends include fellow moms Jessica Alba, Nicole Richie and Kate Hudson — who have all made appearances on her faux reality show. Years ago, Hudson even entrusted Foster to keep an eye on son Ryder, getting in a little parenting practice as she pushed him in a stroller.

— Kathy Ehrich Dowd with reporting by Aili Nahas

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