08/03/2012 08:58 am ET Updated Dec 06, 2017

Rebecca Romijn Wears A Risky Sheer Dress (PHOTOS)

There are sheer dresses that play it safe with linings and other back-up plans in order to avoid a serious wardrobe malfunction. And then there are those that rely on miracles.

Rebecca Romijn's frock from Thursday night's Carmen Steffens' flagship store opening in Hollywood seems to fall into the latter category. The 39-year-old actress and mom of two slipped into a sexy all-black look paired with some fun white flowered heels, but what we most noticed about her ensemble was the criss-crossing neckline that accentuated a sheer tummy panel. Kind of like upside-down cleavage? One wrong move, and we suspect things would have gotten a little embarrassing. (In other Creative Cleavage news this week, see Katy Perry's diamond-shaped braless look.)

Romijn, a former model and "House of Style" host, is currently wearing some very racy costumes onstage as well, starring as Swedish babe Ulla in a Hollywood production of "The Producers." We're sure her wardrobe team is keeping a LOT of outfit tape on hand.

Check out Rebecca's risky gown below!

Scroll down for more photos.

rebecca romijn

rebecca romijn

rebecca romijn

See more sheer dresses below!

Celebs Who've Gone Sheer