Katie Holmes, Luke Kirby dating?

Actress Katie Holmes is reportedly in constant contact with her "Mania Days" co-star Luke Kirby.

The 34-year-old, who divorced actor Tom Cruise, father of her seven-year-old daughter Suri, last year, is rumoured to be in a relationship with Kirby. Also, over the past few weeks, their romance is said to have moved on to the next level.

"Katie and Luke are getting closer with everyday they spend together - and at the moment, with the filming schedule so tight, that's nearly seven days a week," femalefirst.co.uk quoted a source as saying.

"The chemistry between them is tangible but that's all because since their break in filming in July, Katie and Luke have stayed in constant contact," the source added.

Kirby is rumoured to have gone splitsville with his long-term designer-girlfriend Andrea Sarubbi amid speculation about his relationship with Holmes. But the actor is said to be in turmoil over the women in his life.

"Luke is currently trying to figure out his relationship issues with Andrea. I don't think he knows what to do. Katie's trying to be a friend to him, as she would to anyone, but the more time they spend together, the more she seems to be falling for him," said the source.

"She even jokes he's her Mr. Right," the source added.