A source tells the new issue of Us Weekly (on stands Friday) that the actress, 25, and the actor, 23, are an item. Though a second insider insists "it's not serious" between the two, the actors rang in 2012 with pals at posh Paris club Rasputin.
"They hang out together every night," says a source.
It's not the first time VanCamp has fallen for a colleague: She's dated Dave Annable, 32, her beau on ABC's Brothers & Sisters, and Everwood's Chris Pratt, 32. (Annable later wed actress Odette Yustman; Pratt has been married to What's Your Number? star Anna Faris since 2009).
Still, don't expect VanCamp to take her relationship public with Bowman (whose exes include Miley Cyrus and Amy Winehouse).
"She's very private," a pal explains.