Rescuing Rory. Marks Mercenaries, #1

Betrayed and sold into slavery after her father's death, Rory Banks finds herself dancing on the Exos, a deep-space pleasure ship. So when a stranger breaks open her cage and offers her a way out, she grabs it and runs. Kal Marks and his brothers are space mercenaries and traders who have spent the past ten years searching for their younger sister. Their hunt has led them to the Exos and to Rory, who they hope will have information.
But Kal never counted on wanting Rory or on the sexual tension and scorching heat that blazes between them. This mission just got a lot more complicated.