Caging the Beast — Marie Harte

The beast: a slave to his past and his present, but not to his future…or the sexy new master he's decided to keep. Tarn has spent decades fighting for his kind. Known as the Destroyer of the Otherworld Army, he's been using his time in the Vrail System to police rogue Ebrellions. To help his nephew, he takes on a dangerous job and lands in the Outer Rim, where the law doesn't exist. Once a leader of warriors, he's now playing the part of a slave-with a mission. To retrieve a rare crystal and prevent an interplanetary war. He can't let anyone, not even the beast, distract him from doing his job. Zachem'zen is known in the slave pens as "the beast." A brawler of planetary renown, he's never been beaten. But then, his kind were designed to be stronger than the strongest in the System. A Creation on the run from peacemakers, he trusted the wrong people and wound up a slave on Colony6. He's never been happy, but he's been content to bide his escape. Until a new slave rocks his world. Tarn's dominant desire makes him hungry for more. The passion between them burns hot, but Zachem has no intention of being anyone's slave for much longer. The commanding Tarn, however, has other ideas. Reader Advisory: This book contains scenes of m/m intimacy, voyeurism, and light bondage, dominance and submission.