How to Look Sexy in One Step

Play up your decolletage by wearing a lacy full-cup bra with a low-cut dress. Malin Akerman revealed a hint of green lace while Amanda Seyfried contrasted her LWD with a sultry black bra.

Have a standout brooch? Follow the lead of Beyonce and Amy Adams and pin it at the base of a deep-V neckline. Not only will it accentuate your cleavage, it's an easy (and unexpected!) way to add sparkle to a little black dress.

Vertical colorblocking gives the illusion of a perfect hourglass, even if you've indulged in a few extra holiday snacks. Both Kate Winslet and Liv Tyler chose sheaths with black panels at the sides for a sexy slimming solution.

Let a tunic do double-duty for the ultimate leg-baring micro-mini. Zoe Saldana and Lea Michele opted to skip pants and wear their long tops solo. Needless to say, this trick works best if you are petite--add in tights or leggings if the look feels too revealing!

A sheer dress looks extra sultry sans slip. Nikki Reed opted for a miniskirt under her gauzy maxi, while Diane Kruger chose tap pants under her lacy gown.

Leather pants are as easy to wear as jeans and light-years more seductive. Molly Sims and Miranda Kerr each paired their leather leggings with sheer blouses for edgy-glam.