Courtesy Emporio Armani / Promotional 1 / 6
Courtesy Emporio Armani / Promotional 1 / 6

How's this for irony? Megan Fox has managed to class up her sex bomb image by posing in slinky lingerie.

The dark-haired starlet's new global ad campaign for Emporio Armani undies and jeans is out (listen closely and you can hear the collective heavy breathing), and, much to our surprise, she looks unexpectedly chic (read: not tacky), even when showing off acres of her molten-lava-hot, va-va-voomy bod.

The sultry black-and-white photos, which will soon pop up in major magazines and stop traffic on billboards in New York, London, Los Angeles, Rome, Paris, Tokyo and Milan, feature Fox, 23, accentuating different facets of her up-front personality.

In one shot, she appears pensive in a striped bra and matching underpants. In another, she bends over and furrows her brow in a white miniskirt and tank top, revealing a heretofore-unknown talent to pose and calculate pi at the same time (click through the photos at left to see more).

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"Megan is young and sexy and has a lot of spirit," gushes Giorgio Armani (via WWD). "Both Emporio Armani Underwear and Armani Jeans are all about a youthful attitude, making her the perfect choice for the collections."

Megan, who was photographed by Mert Alas and Marcus Piggott, replaces Victoria Beckham as the designer's pouty-lipped, top-heavy muse (Posh's hubby, David Beckham, has ceded his modeling position to fellow soccer star Cristiano Ronaldo).

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And being a corporate shill doesn't just mean boatloads of free silky unmentionables (somewhere, Fox's squeeze, Brian Austin Green, lights a candle in honor of Armani). It also means a hefty paycheck, some of which the "Transformers" looker has funneled into a swanky new pad.

TMZ reports she's plunked down close to $3 million for a 4-bedroom, 5-bath spread in Los Angeles. The palatial estate comes with all the standard celebrity amenities, including a gourmet kitchen, media room, sweeping views and a swimming pool.

Embrace your inner voyeur by checking out the photos here.

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