Her Cyborg Beast by Grace Goodwin

Caroline Jane (CJ) Ellison has a gift for analysis. When a Wall Street deal goes bad, the choice between prison or the Interstellar Brides Program is a no-brainer. She’ll go. She’ll leave Earth, her past, and her mistakes behind. The decision is logical, not emotional. Until she wakes up on another world with a huge Atlan Warlord, her matched mate, refusing to claim her.
Warlord Rezzer is contaminated. Weak. The Hive captured him and stole his soul, his very beast. A mate is out of the question when he can’t become what he was born to be, a beast, her mate, her protector. Forced into the Brides Program testing against his will, Rezzer has no intention of claiming the beautiful, sassy female who arrives on the Colony. The Hive stole his beast, but not his honor. He vows to give her to another, a worthy male, a beast who is whole — one not hunted by the Hive as part of a dangerous new experiment to win the war.
CJ takes one look at the wounded warrior before her and knows she will never be able to let him walk away. He’s hers now, her perfect match. And if that means she has to seduce the beast or face off with the Hive to save him…that’s exactly what she’s going to do. She lived her life following the rules. With everything on the line, it’s time to break them.