Thrall Prince Series by Caroline Gibson

David Thomen thought he had everything he wanted with his alien lover, Vell of Otharn. Vell reveals that he is pregnant, and David is shocked but overjoyed. David is desperate to enjoy their happily-ever-after, but fate has other plans. Vell fears their happiness exists on borrowed time. The ghosts of his past won’t stay buried, and when their defenses are down David and Vell are snatched from Earth... moreDavid Thomen thought he had everything he wanted with his alien lover, Vell of Otharn. Vell reveals that he is pregnant, and David is shocked but overjoyed. David is desperate to enjoy their happily-ever-after, but fate has other plans. Vell fears their happiness exists on borrowed time. The ghosts of his past won’t stay buried, and when their defenses are down David and Vell are snatched from Earth. They must face the King and Queen of Otharn, who are convinced that Vell is still a slave, that David is his master, and that Vell’s unborn child is a curse on the joined worlds. Stalked by a power-hungry witch, haunted by Vell’s past, with the future of their child foretold to be one of destruction and chaos. David must navigate this alien world, forge new alliances and somehow make an impossible choice. Will he force Vell to give up their child, or will he be forced to give up Vell himself? less

Prince Lonn swore he’d never buy a slave. That was before he met Llias. Lonn carries a heavy burden; it is his destiny to inherit the powerful throne of Otharn and rule over the joined worlds. Suffocated by his overbearing parents and exhausted by the cold-blooded plots that surround him, Lonn escapes his troubles on a mercy-mission to the far-flung world of Tornatt... morePrince Lonn swore he’d never buy a slave. That was before he met Llias. Lonn carries a heavy burden; it is his destiny to inherit the powerful throne of Otharn and rule over the joined worlds. Suffocated by his overbearing parents and exhausted by the cold-blooded plots that surround him, Lonn escapes his troubles on a mercy-mission to the far-flung world of Tornatt. Fate has other plans for him, however: at a filthy slave-market Lonn finds a man his heart cannot leave behind, no matter what the price. Llias of Fryst has no care for fate, destiny, or the desires of arrogant princes. Kidnapped from his home planet by a malevolent witch, Llias refuses to be a pawn in anyone's game, even someone as handsome as Lonn. Llias has plans of his own, and none of them involve being Lonn’s grateful, obedient, companion. Trapped together on Tornatt, Lonn and Llias are forced to wrestle with fate, destiny, and the manipulative plots that surround the Otharnian throne. When the witch finally shows her face, Lonn must make a choice; betray his family and risk the safety of the joined worlds, or lose Llias forever. less