Lea Michelle turned up the sex appeal at the Los Angeles premiere of "American Horror Story: Freak Show," in a velvet Cushnie et Ochs dress featuring a plunging neckline and a high-high slit.

Buy the ready-to-wear version with a slightly more modest neckline now: Cushnie et Ochs Velvet Dress.

TV presenter Laura Whitmore took the thigh-high slit to the next level with her navy blue maxi dress, which she wore for the Mondrian hotel launch in London.

Try this ribbed knit maxi dress for an almost identical look.

At the Mondrian hotel launch in London, reality TV star Mille Mackintosh relied on a strategically placed zipper and thigh-high slit to add some edge to her street chic ensemble.

Buy it now: Topshop Side Zip Maxi Skirt.