Selena Gomez says Demi Lovato is a bigger princess

NEW YORK – Selena Gomez and Demi Lovato are BFFs in real life — but in their upcoming Disney Channel movie "Princess Protection Program," they don't start out that way.

Gomez plays a tomboy whose family takes in Lovato's princess after a dictator invades her country. Gomez, who turns 17 this summer along with Lovato, says they bicker at first but eventually "realize that they complement each other."

Gomez says they fit their roles, since Lovato is more princessy.

While filming in Puerto Rico, Gomez says Disney tried to separate the duo at night by putting them in different buildings.

"They knew we would never get any work done because we'd spend the night and we'd stay up late and talk," she explains. "That didn't work — I ended up living in her room half the time."

"Princess Protection Program" airs June 26.

Gomez — who ordered room service, watched movies and hit the beach with her best pal — thinks true friends shouldn't judge each other.

"You should be there for someone, and I think you should be honest with someone," she says. "I don't think it's healthy to go around gossiping and telling other people (things). I think it's nice to just sit down with someone and tell them how you feel and get it off your chest."

Gomez, who has been romantically linked to teen heartthrobs Nick Jonas and Taylor Lautner, says she is proudly single and not looking for a boyfriend. She's got enough on her plate: Gomez will soon film the third season of her Disney series "Wizards of Waverly Place," and her debut pop-rock album is scheduled to be released in September.

Asked what she looks for in guy, she says: "Shia LaBeouf can call me — just kidding. ... I like for someone to be honest, nice, sweet and someone that my parents like."

What's Gomez's guiltiest pleasure?

"I like a lot of `Hannah Montana' songs — that's kind of a guilty pleasure because it doesn't match at all in my library of iTunes."

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