Elena Herrera has everything to lose. The forty-one-year-old neuroscientist and single mom has her hands full: an experimental treatment that hasn’t been showing results, a twelve-year-old son with a Mountain Dew addiction, and a corrupt executive that just cut her timeline in half. The last thing she needs is to notice her new research assistant—who works eighteen hours a day but somehow still has six-pack abs and a thriving collection of plants. Especially when he’s fifteen years younger, completely off-limits, and makes her feel more alive than she has in years.