I couldn't believe my luck when my best friend, Mike, invited me to crash at his place for the week. My apartment was getting fumigated because of some pest problem, and the whole place smelled like chemicals. Mike's house was way better—a nice two-story home in the suburbs with a big backyard and everything. We'd been friends since high school, both twenty-two now, and he didn't mind me staying. What really made it great was his mom, Anna. She was in her early forties, but she didn't look it at all. She had this long brown hair that fell in waves down her back, green eyes that sparkled when she...