Christina Aguilera poses for Maxim Credit: Mark Liddell

Eat your heart out, world. Christina Aguilera has experienced a lot of ups and downs with regards to her weight, but these days, the "Your Body" singer is feeling happy, healthy, and confident -- and with good reason! Posing in a series of sizzling pictures for the October issue of Maxim, the 32-year-old blonde bombshell looks sexy and slim.

One photo, from inside the mag, shows the Voice mentor striking a sultry pose and rocking a curve-hugging red satin slip that displays her ample cleavage and skinny body. Another, on the cover, features the mom of one (to son Max, 5) wearing nothing but a black bra, white briefs, and a white men's shirt left unbuttoned to the waist.

"I'm such a down-to-earth girl, I'm comfortable in just a jersey and boy's underwear," Aguilera tells the mag. "Trying too hard to be sexy is the worst thing you can do. Sexiness should be effortless."

The Burlesque star, currently dating Matthew Rutler, also shares with Maxim her thoughts on men. Asked if a guy needs to be able to sing to turn her on, she replies, "Not at all! The quickest way for me to feel weird and run for the hills is if somebody sits down and serenades me with a guitar. It's not my thing."

Rutler and son Max are of course the top two boys in Aguilera's life right now, but she's known her fair share of heartthrobs in the past. In fact, she appeared on Disney's The Mickey Mouse Club with two of today's hottest stars: Ryan Gosling and Justin Timberlake. Don't ask her to pick favorites, though.

"They were both very charismatic, but I think I have to shy away from the question. I don't want this to bite me in the butt later," she quips to Maxim. "They were tight, you know. They'd walk around together all the time, same as me and Britney [Spears] would. Now look at us. It's funny how that played out."

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