Ashton Kutcher apparently "looked really into" Mila Kunis during their dinner date over the weekend.

The pair have maintained that they are just friends but Life & Style reports that eyewitness claim to the contrary.

Ashton, 34, and Mila, 28, have been pals since starring on That 70s Show and the actor is still legally married to estranged wife Demi Moore, 49.

But while they were out at Giorgio Baldi on a triple date with Mila's closest friends, they apparently only had eyes for each other.

"Mila and Ashton looked very close, like a couple, and the mood was relaxed," the bystander recalled. "They really stood out. It's one of the most romantic places you can take a girl."

"He looked really into her. He didn't take his eyes off her once. He was totally focused and kind of fussed over her. You could tell he really likes her. It was cute.

"She was all dolled up. It's very obvious that they're dating and are really into each other. Friends don't have Saturday night dinner dates at Giorgio Baldi!"

The Hollywood pair have been seen out and about in LA on several occasions but have not confirmed a romance.