Of course, my bridesmaids were bound to be pretty tough chicks. I couldn’t really be sure there wouldn’t be guns. ‘‘You know,’’ said my best friend, Cherise, staring thoughtfully into the mirror and smoothing her hands down the clinging lines of her dress, ‘‘there’s a math formula for wedding dresses.’’ I blinked at her. I was trying to figure out if the layer cake of tulle and lace I had on constituted romantic excess, or if it looked like I’d fought off a demented pastry chef and barely escaped with my life. ‘‘What?’’ ‘‘The problem is, this dress looks totally fabulous on me. And the better the bridesmaid’s gown looks on her, the fuglier the bride’s. I’m just pointing it out because I’m a kindhearted person, you know.’’ She was right—she did look totally fabulous in the dress. The color was a dark rose, one that wildly complemented Cherise’s blond hair and beautiful skin. It was a simple sheath dress, clinging in all the right places, and it ended at the right length for her, just below the knee, to display her perfectly sculpted calves to full advantage.