Christina Aguilera is showing off her confidence on the cover of Maxim magazine, showing off her sexy shape, and divulging what to her is sexy.

Gracing the October cover, Aguilera tells the magazine that for her sexy is wearing a jersey and “boys underwear.”

“I’m such a down-to-earth girl, I’m comfortable in just a jersey and boy’s underwear. Trying too hard to be sexy is the worst thing you can do. Sexiness should be effortless,” she explains.

Despite her busy schedule, returning as mentor to The Voice, putting out her latest album Lotus and being mom to son, Max, Aguilera reveals she is never too tired to let off some steam with her partner.

"Sometimes being sexual with my partner is a great way to blow off steam at the end of a hard day's work,” the 32-yearold single mom reveals according to People. “I'm not the girl who's going to be too tired."

The buxom blonde also notes, “The only place I don't need to be in control is the bedroom."

Aguilera sheds her clothes in the issue just months after revealing a slimmer figure. The “Your Body” singer strips down to a bra top and hot pants in a stunning black and white photo, she looks sexier than ever in a tight red number.

Check out Aguilera on in Maxim magazine when the issue hits the shelves later this month.

Image credits: Maxim