Vanessa Hudgens completely trusts her heartthrob boyfriend Zac Efron.

The 'High School Musical' star - who has been dating her co-star from the Disney movie series for the last four years - doesn't mind if he chats up female fans because he would never cheat on her.

She told America's Twist magazine: "Trust is everything. I think it's important for girls to not be a jealous girlfriend 'cause I think it's something that a lot of girls do, and it can be unattractive."

Actress Vanessa, 21, claims she and Zac had a connection straight away when they met at the show's auditions - even though he wasn't the heartthrob he is today.

She said: "Right off the bat, we had a connection. I think everybody could see it."

She added to America's Glamour magazine: "And he was adorable. I mean, he wasn't the guy that he is today. Like, he had a gap in his teeth. He was a whole different person."