Actress Jessica Alba confessed during a TV show that she has been proposed many times to have sex with the movie directors, while auditioning for roles.

Jessica, 24, invited on US TV show Tonight With Jay Leno, told the host that she received sex proposals during auditions, but refused every time, because she didn't want to see them in the morning, much less every day during filming.

She revealed: "Of course I've been asked. But from a really crass point of view, if I just want to f**k somebody, I don't really want to see him in the morning, much less every day during filming."

The actress also revealed that if she doesn't like the actor with whom she has to shoot some kissing scenes, she thinks of her dog.

She explained: "I could have sexual chemistry with vinegar.
When you're making a movie with an actor, either it's someone you want to sleep with or you're thinking of someone you want to sleep with or you're thinking of your dog. I think of Sid and Nancy, my pugs."