Meet Lucy, whose best friend Deon is about to pop in while she's baking. Is it a goodie he's after? Or something more? Or less? An excerpt from A Little Bit of Lust.  Twelve days until summer vacation.  Between spoonfuls of oatmeal, Lucy dictated her list of summer resolutions into the Reminders app on her phone. Birds chirped outside the open kitchen window where the scent of freshly mown grass hung in the air.  A…