Rachel Bilson: Maid of Honor and Bridesmaid Dress Designer Having Rachel Bilson as your maid of honor comes with some very fashionable perks. The fashionista joined forces with long-time friend and designer Brian Reyes to create four one-of-a-kind silk georgette and chiffon bridesmaid gowns in a soft range of greens for the wedding of her best friend Jill Stonerick.