Fifty Days of Gravy Train, by D L James, 2011
When an obedience training candidate encounters a dog who is beautiful, brilliant, and intimidating, the unworldly, innocent Ally is startled to realize she wants this stud muffin and, despite his mysterious reserve, finds she is desperate to get close to him. Unable to resist Ally's cuddly charm, beauty, and independent spirit, Chief admits he wants her, too--but on his own terms. Shocked yet thrilled by Chief’s singular dog food tastes, Alley hesitates. For all the fun, his loving family--Chief is a dog tormented by demons and consumed by the need to secretly snack. When the couple embarks on daring, midnight binges, Alley discovers Chief's Gravy Train secret and explores her own dark desires. Playful, amusing, and deeply moving, Gravy is a tale that will obsess you, possess you, and keep you full forever.