Ashton Kutcher and Mila Kunis are reportedly dating.

The Hollywood hunk has been single since he split from his wife Demi Moore last year, following allegations he was unfaithful. He has been linked to Rihanna recently, although she has denied they were ever an item.

Mila has also been on her own since her relationship with Macaulay Culkin ended in early2011.

The actress and Ashton have known each other for many years as they appeared on TV programme That 70s Show together they will be seen talking about the experiences on set in a reunion one-off set to air later this month.

It's now been suggested the pair have taken their friendship to the next level as they were spotted enjoying a sushi dinner together in Studio City, Los Angeles.

"Ashton was touching Mila's hand and Mila was all dressed up. She looked hot; this was definitely more than a dinner between friends - this was a full-on date," a photographer for X17 Online told the site.

Ashton dressed down for the meal, opting for a cap and sweater. Mila made more of an effort, wearing sky-high heels and a pair of tight jeans.

X17 Online adds that Aston and Mila have been spending increasing amounts of time together over the last few weeks and even went furniture shopping.