Courteney Cox's new boyfriend says she is ''phenomenal''.

Actor Brian Van Holt - who plays the star's ex-husband in her hit sitcom 'Cougar Town' - was full of compliments for his girlfriend, who he has reportedly been seeing for six months, when quizzed about their budding relationship.

He gushed to Us Weekly magazine: ''Courteney's amazing; Courteney's phenomenal.''

The 43-year-old actor has starred alongside Courtney, 49, in the TV series for four years and it's thought their on-set friendship has developed into a more romantic relationship over the last year, following her divorce from actor husband David Arquette in May.

Courteney first separated from her 'Scream' co-star David - with whom she has nine-year-old daughter Coco - in 2010.

The former 'Friends' actress and Brian were spotted enjoying dinner with Coco at West Hollywood's Chin Lin eatery earlier this year, and a witness said they ''acted like boyfriend and girlfriend''.

It seems Courteney's young daughter approves of her new relationship, also, as she is said to have been ''extremely comfortable'' with Brian.

A source said: ''She treated him like a dad or an uncle.''

David, 41, previously accused Courteney of having an ''emotional affair'' with her co-star following their separation in 2010.

However, the actor has since moved on and is now dating TV presenter Christina McLarty.