Accountant Cassy Morris knows she’s putting her heart on the line when she agrees to move in with her best friend, multi-millionaire geek Scott Thornton while she manages his nanotechnology lab and finds an angel investor for his revolutionary new product. She’s loved him forever even though he’s only ever regarded her as a friend. But Cassy never could refuse Scott anything...

When Scott is named Seattle’s sexiest man, the attention from women threatens to get in the way of him finishing his pet project and putting it on the market. Cassy steps up once again and pretends to be his fiancé. A lifetime of repressed sexual tension explodes in a passionate affair. Soon Scott is wondering how he can convince Cassy to turn their fake engagement into reality...