Escape Velocity by Rebecca York

Max Cassidy, a space pilot who operates on the edge of legality, doesn’t know he’s risking his life when he picks up a shipment of contraband from Naxion. On this forbidden planet, all the inhabitants are beyond ugly except the gorgeous women raised for the interplanetary slave trade. When Cassidy discovers the cargo is one of these slaves, he vows to save her. But he doesn’t know how much the woman who calls herself Amber is hiding from him. Attraction flares between them. As their sexual relationship turns steamy, the chase is on to escape the corrupt official who bought Amber. But the only way to ensure her safety is to terminate the man’s sadistic avocation. Passion builds as they rocket off to what could be Max’s final mission.