'Twilight' Star Nikki Reed Shows Her Dark Side in Awesome Bikini

Unlike the bloodless vampire she plays on screen, 24-year-old "Twilight" star Nikki Reed showed off her sexy tan in Hawaii this weekend ... wearing a smoking hot bikini while on a stroll with her husband.

(Fun fact: Nikki's husband is former "American Idol" contestant Paul McDonald, who placed 8th on Season 10.)