Under Her Uniform by Victoria Janssen
Isobel Hailey has disguised herself as a man so she can fight in the British Army in World War I. Only a few people know the truth, including her two officer lovers–so why can’t she stop thinking about handsome Corporal Andrew Southey instead? Isobel has to keep her wits about her and her erotic fantasies hidden so she doesn’t blow her cover. But when she and Andrew find themselves working closely on a mission, their attraction–and the truth–is impossible to deny….
A sequel to Victoria Janssen’s The Moonlight Mistress, available May 2012 in ebook from Spice Books.