Actor Tom Cruise is reportedly been dating fellow Scientologist and actress Laura Prepon.

The `Mission Impossible` star and the `That 70's Show` actress, who both practice Scientology, were rumoured to be dating last year. Now it has been revealed that they've been seeing each other ever since, reports contactmusic.com.

The 51-year-old actor and Prepon, who is currently playing a drug dealer in `Orange Is the New Black`, were spotted enjoying a cosy meal at a hotel in Los Angeles last November and despite trying to keep their romance a secret, the latter's co-stars have reportedly found out about the relationship.

"It's the buzz on the set of her show,` said a source.

Having known Prepon for years, Cruise, who was previously married to Mimi Rogers, Nicole Kidman and Katie Holmes, is said to have asked her out after seeing her in her new series and picked her up for their date at the Manor Hotel in a vintage car.

"They spent three hours laughing and joking. It's clear Tom is smitten and after the date he was on cloud nine,` the source added.