Claimed by a Demon King by Felicity E. Heaton is the second book in her Eternal mates series. Some of the characters from her Vampire Erotic Theatre series make a cameo appearance in this series so if you're a fan of VET then you'll get a kick out of this. 
 The demon King Thorne knew the second he saw her, that Sable, a mortal huntress, was his one true fated mate. It's a shame he has no experience witg women and she has no experience with relationships and doesn't want one. 
 Throw in some steamy hot sex, battle-frenzy, a stand off between two men for her attention and a wicked sense of humor and this is one heck of a steamy paranormal romance that will leave you even further invested in the Eternal Mates world.