Kelly Brook "knows nothing" about relationships.

She said: "The older you get the more you realise you know nothing about relationships. I have no idea. I don't know anything. I had much more successful relationships when I was in my 20s and I knew nothing.

"But now I feel like I can work people out so quickly and it's not good. Being judgmental is not good."

The brunette beauty also confirmed she had split from David McIntosh, after the pair had been rumoured to have rekindled their romance following cheating accusations made against him.

She added: "I'm completely single at the moment."

The model also revealed that the apartment, which she shares with fellow actress, Natalie Loren, has been branded a "no-boy zone".

She shared: "I'm just living with my girlfriend. I've got a beautiful apartment in an old Hollywood building and we have a great time.

"There's no boys messing up the house. I'm like, 'Are you going on a date tonight?' And she's like, 'Nah let's watch a movie.' It's a no-boy zone."

Kelly's latest acting role is in 'One Big Happy' - a US TV show produced by Ellen Degeneres - where she plays a British woman called Prudence.

Speaking about challenging perceptions with her character, she added to the Daily Mirror newspaper: "People [in America] have a preconceived idea of what British actresses are like because of 'Downton Abbey' and whatnot.

"I wanted to play a character that doesn't have a super-posh accent and is maybe a bit scruffy, from the wrong side of the tracks, just a normal regular girl that hasn't got a broom up her backside."