Captain's Call of Duty (Harlequin Romantic Suspense #1684)

"Mendez? What happened to you?"

Captain Jim Kelley was thunderstruck. Suddenly Alexandra Mendez had gone from one of the guys, kid sister and tomboy to all woman. Alex was under his command on a dangerous undercover mission, but Jim had to keep reminding himself they were only pretending to be lovers.

Alex had loved Jim all her life, but they'd always been just friends. Now working together to thwart an assassination plot, their cover required her to unearth her femininity. Jim's sudden attention was unexpected…and thrilling. But was Jim just infatuated by her looks, or was it her he wanted?