Selena Fanclub

'If you're in love, you're in love to the fullest,' singer/actress tellsCosmopolitan.

Selena Gomez turns the big 2-0 later this year, and she seems to be leaving her tween image behind. The 19-year-old is the latest teen star to appear on the cover of Cosmopolitan, following last month's issue of the women's magazine, featuring 17-year-old Dakota Fanning.

For her first cover for the magazine, Gomez dons a low-cut, floral-print dress as she looks rather seductively into the camera. She's sitting with her one leg perched in front of her body, displaying a saucier side of herself than fans might be used to seeing.

Inside the issue, she's talking all about love, opening up about her longtime boyfriend, Justin Bieber. "I'm just like every 19-year-old girl," she said. "If you're in love, you're in love to the fullest, and you just want to go to the movies, hang out, and be as normal as possible. I'm fortunate that I've found someone who has that philosophy."

In another Cosmo quote floating around online, Gomez dishes on a past boyfriend (Taylor Lautner? Nick Jonas?) who didn't make things as easy on her. "I was in a relationship previously where I had to hide everything and it wasn't my choice. I had to go through different exits and take separate cars and do the craziest things, and it just really wasn't worth it," she explained. "It was like a year of my life completely wasted."

The more mature magazine cover comes as Gomez prepares for the next phase of her career. In the coming weeks, she'll hit the set for her next film, the more adult-themed "Spring Breakers," which follows a group of college girls who rob a restaurant to pay for their spring break. When they land in jail, a drug and arms dealer bails them out, and they quickly become entangled with him and his business.

"It's a different character than I have ever played before," she told MTV News about the film, which will be directed by "Kids" mastermind Harmony Korine. "It's a different kind of vibe I think than people are used to seeing me in. What you're going to see is more raw, I think. It's going to be raw and more about acting."

What do you think about Selena's grown-up image? Let us know in the comments!