X17online was the first to report that Ashton Kutcher and Mila Kunis are definitely an item!

The two spent a romantic weekend just north of Santa Barbara in the town of Carpinteria, according to People.

Ashton and his former That 70's Show costar enjoyed a sushi dinner, bought sunflowers and blueberries at a roadside fruit stand ... and spent lots of private time together says a source.

The source adds:

    "He was so in love with her for a while when they worked together. He thought she was a goddess, was always talking about how beautiful she is. But she was with Macaulay [Culkin] for a lot of that time and also just generally gave off a not interested vibe."

Sounds delish! Reps for both stars have denied that the pair are an item.