• Heidi Klim is fitted with ample assets for her Halloween look.

Heidi Klim is fitted with ample assets for her Halloween look. (Photo : Twitter/People)

Supermodel Heidi Klum, noted for her highly creative Halloween costumes, has everyone guessing who or what she will morph into on All Hallow's Eve.

Klum offered a sneak preview of what she will wear, noting that it is her 16th year of hosting and stunning people with her costumes for her annual Halloween celebration.

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The German supermodel hinted that her costume this year depicts a male's fantasy, People magazine reported. Klum retweeted the magazine's snaps of her costume fittings, creating a fun guessing game on Twitter sphere. 

Every year, Klum enlists the help of a creative team to dress her up in a jaw-dropping costume. On Instagram, she wrote that she can hardly wait for Halloween and posted a photograph of herself with the team from Prosthetic Renaissance, a New York-based special effects and make-up services company that is preparing her costume.

Designer Christian Siriano, dubbed by Elle Magazine as the new king of old-school glamour, is helping Klum look authentic in her latest Halloween look. His string of clients include Hollywood stars like Gwyneth Paltrow, Shailene Woodley, Jennifer Lopez; music icons Lady Gaga, Rihanna, Taylor Swift, and many others

Snaps of Siriano overseeing Klum being fitted with full assets up front and behind during Halloween costume preparation time had tongues wagging that the "Project Runway" host may show up as Kim Kardashian. The reality star created a big stir with bare butt shots featured on Paper Magazine.

Other photographs show Klum being draped with a gold lame fabric and trying on a mask that alters her bone structure, signs that she is about to appear in another "intense" Halloween costume, Us Weekly reported.

The former Victoria's Secret Angel has worn over-the-top Halloween costumes in the past. These ranged from Lady Godiva on horseback, Betty Boop, a red-hot witch, a 95-year-old version of herself with wrinkly skin and varicose veins, to a multicolored insect, for which she got all slimed up.