Demi Lovato has something else in common with Lindsay Lohan, beside a stint in rehab. The former Disney star has posed for a Tyler Shields photo spread. The sassy star gets a little fresh with a lollipop.

Shields has helped stars like Lohan and Mischa Barton grab headlines for something other than misbehavior. But he’s also shot the “Glee” girls like Jenna Ushkowitz and Heather Morris, although Morris later apologized for her photos.

Shields says Lovato fans were clamoring for him to photograph the singer.

Check out Demi’s photos; click to enlarge.

“A bunch of people were tweeting her for me to shoot her, and a bunch of people were Twittering and e-mailing me asking me to shoot her, and we ended up tweeting each other,” he said.

“We met that way, we set it up and boom: she came over and it’s time to shoot,” Shields told E! News.

Lovato gets very oral with the lollipop and is pictured in a power pose, dramatically smashing a piece of glass. Oddly, all of the other photos are from the shoulders up.

“No one has seen her doing anything remotely sexy. But she’s a grown woman now, and she wants to be sexy and feel sexy, and she wants to have these pictures forever,” Sheilds said.

“Little kids eat lollipops. She’s not a kid anymore, but people view her that way. It’s like, ‘So if you’re going to view me as a kid, then here ya go,'” Shields explains.

Like other Disney stars, such as Miley Cyrus and Selena Gomez, Lovato is attempting to transition into an adult career. She stumbled along the way when she had a breakdown in 2010.

She did a stint in rehab last year, and said afterward that she had come to terms with an eating disorder and anger management issues. She also said she learned she is bipolar.

She took some heat from the twitterverse over her recent weight gain. She’s about 30 pounds heavier since exiting rehab.

“I was a very manipulative person when it came to my eating disorder. You name it, I did it. I would lie about already eating. I would lie about having to go to the bathroom. I would go to any lengths to make sure I was sick,” she said.

She also rebuffed reports last month that she had re-entered rehab in Malibu. Check out her photos!