Actress Mary-Louise Parker has reportedly started dating her WEEDS co-star Romany Malco.

Parker, who hasn't been romantically linked to another man since parting ways with actor Billy Crudup while seven months pregnant two years ago, has now finally found happiness with Malco, according to sources.

And 41-year-old beauty Parker turned heads when she arrived at the 11 August (05) premiere of Malco's new comedy THE 40 YEAR OLD VIRGIN.

A source says, "They definitely looked like they were together when I saw them at The 40 Year Old premiere. They were holding hands, cuddling and even kissing. They make a really cute couple; there's a real chemistry between them."