Sinister Desires by Faedra Rose

It’s All Hallows’ Eve and Charleigh Llewellyn has just been dumped like a piece of trash after giving her ex-boyfriend a second chance over the holidays. Forced to walk home to her parents—through the woods—she is accosted by a pack of ravenous wolves.
But there are worse things than wolves lurking in the woods, and soon Charleigh finds herself indebted to a living, breathing monster. Following her most sinister desires, Charleigh feels compelled to repay the creature—soon learning the truth about his curse and much, much more…