Ashton Kutcher and Mila Kunis reportedly escaped on a romantic mini-break last weekend.

The rumoured couple and former 'That 70s Show' co-stars apparently took a three-day trip to the coastal town of Carpinteria in California, where they were spotted eating sushi and shopping for fruit and flowers.

Just last week they were seen enjoying dinner with friends and shopping for furniture although a rep for the 28-year-old 'Black Swan' actress denied the pair are dating.

However, a source claims Ashton, 33 - who split with wife Demi Moore after six-years of marriage last year amid allegations he cheated - used to have a huge crush on Mila.

The insider told People Magazine: "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.

"It never happened, but I'm not surprised by this - at all."

But another insists Ashton isn't looking for anything long term.

The source said: "He always talked about Mila like a little sister. They're definitely close pals and have been. I think if anything she's a good time for him. But he's not looking for anything serious."