Genetic Attraction by Tara Lain

At a conservative Long Island university, geneticist Dr. Emmaline Silvay has two great loves — her life-saving work and her younger research associate, Dr. Jake Martin. But Em knows she’s crazy. She’s Jake’s boss and he lives with his girlfriend! When Em discovers that Jake’s “girlfriend” is really his boyfriend, the beautiful supermodel, Roan Black, she resigns herself to a platonic friendship. But the men have other ideas, and make their intentions clear on a passionate three-way weekend. Em’s never wanted anything more, but her unconventional love breaks rules her University superiors haven’t even written yet. Roan’s fame makes secrecy impossible and the ménage threatens her carefully constructed world. What – or who – will she give up?