Flirty Favorites With the introduction of the "Little Black Dress," black became a staple in women's fashion in the 1920s, and since then, the trend has only gotten sexier, wilder, hotter. Today CheapUndies is presenting some of the sexiest examples of this intimate fashion staple. This collection of black swimwear by some of our favorite designers were designed to pique interest, prompt indecent proposals, and set the night on fire… one heart at a time! So make your choices NOW before they're gone forever..