One Bright Star Book 1 of Katiah Trilogy

Brehan Tucker's hunger for freedom and identity ignites when she and other women are abducted from Earth by a godlike being, as breeding stock to a dying alien race. Determined to return to her world, she uses wit and cunning to sabotage her abductor's authority and win the loyalty of his crew.
But fate has other plans for her.
Erth is the unfortunate incarcerator. A being whose immeasurable power is confined within a humanoid shell, his laws are unchangeable his command unquestionable, his will undeniable.
But fate has other plans for him as well.