Taken: The Vampire's Concubine Book Two - Taken: The Vampire's Concubine, #2

Abducted by the vampires, Keely has been taken to their foreign world as their concubine. Expected to select a mate from the horde, she attracts the attentions of a dangerous male vampire... while her lover stands by, helpless to stop it. She quickly realizes that Kosmas is determined to have her, whether she wants it or not. Keely finds herself collared and leashed as she's paraded in front of the entire town of Golden Harbor.
Despite her resistance to him, she isn't immune to his dark desires. It's not enough for Kosmas. With one ruthless revelation, Kosmas determines her fate... and her surrender.