The actress - who famously locked lips with actress Laura Harring in 2001 film 'Mulholland Drive' - admits starring in raunchy scenes with female co-stars is less scary than getting intimate with a man.

Naomi - who is reportedly expecting her second child with boyfriend Liev Schreiber - said: "The easiest sex scene I have done was in 'Mulholland Drive' because it was with another woman. There was no awkwardness. There was no sexual tension."

Naomi - who is renowned for her unique sense of style - also revealed she often returns clothes after she has worn them. She added: "I keep the tags on for the first wear and then decide if I want to keep it."

The 39-year-old actress recently revealed she is "terrified" of working with Liev again. She said: "We acted together in 'The Painted Veil' in 2006, and we are looking for more things we can do together.

"It's terrifying though, because he's so, so good. We talk about all sorts of possible projects, then we laugh and say, 'Thank God no-one was around to hear that.' "

(C) BANG Media International
Photo: WireImage.com