Sources: Aaron Eckhart and Molly Sims a Couple

Tuesday November 17, 2009 07:10 PM EST

Aaron Eckhart and Molly Sims

Maria Ramirez/FWD; Fernando AllendeSplash News Online

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Things are heating up for the hottest couple of the moment: actor Aaron Eckhart and model-turned-actress (and now jewelry designer) Molly Sims.

Reports first circulated last week that they shared an intimate dinner at Sullivan’s Steakhouse in Baton Rouge, followed by a report Tuesday that Sims gushed to friends, "Aaron's a great guy!"

Sources have now confirmed to PEOPLE that the two are in fact a couple and have been quietly dating for a few weeks.

Eckhart starred in Love Happens and Sims is currently promoting her new line of jewelry, Grayce.