Those Disney girls are really starting to grow up!

Following Miley Cyrus' engagement to Liam Hemsworth, former "Wizards of Waverly Place" star Selena Gomez is showing she's an adult now too ... thanks to a racy new photo shoot in Elle Magazine.

In one photo the 19-year-old actress/singer shows off her body while laying down in a red strapless bra ... while in another she flaunts her cleavage in a metal chain dress.

As for being a former Disney star, Gomez opens up about her days with the Mouse House in the magazine.

"Disney is a machine, so people automatically assume that you can't work for the channel unless you act and sing and dance and sign up for all that," she says. "That's absolutely not true. I always did everything the way I wanted to do it."

Gomez also talks briefly about boyfriend Justin Bieber -- and that time he rented out the Staples Center for a private date night screening of "Titanic."

"If I'll share anything with you, it's that he really is a hopeless romantic. I had just mentioned it in the car - all I said is that I really want to see Titanic again, and then..."

See more from Selena when the July issue of Elle hits newsstands June 19.

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