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Still going strong after five months!

Ashton Kutcher and Mila Kunis have recently been parading their relationship around NYC. The 34-year-old actor, still separated from Demi Moore, has been living with his onetime "That '70s Show" costar, 29, while she films "The Angriest Man" in Brooklyn in the city.

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"He always had a thing for her," a source told Us Weekly. "It's a real infatuation."

On Sept. 17, the pair of five months fed each other brunch across the table at NYC's Philip Marie restaurant -- then cuddled up on a boulder for an extended smooching session in Central Park.

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"They only saw each other," a witness said of the duo. "Nothing else seemed to matter."

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While a source told Us that Kunis "isn't sure this will last," the Friends With Benefits actress is "going for it."

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