The Traitor’s Curse by Eliot Grayson

Betrayed, beset on all sides, and possibly bewitched…

Since the sudden, suspicious, and unlamented death of his father, only one man stands between Lucian and the grudging acceptance of his subjects: Benedict, a powerful dusk mage, a military hero, the favorite of the ducal council…and Lucian’s stepbrother.
Not that Benedict wants a shackle disguised as a crown. He’d rather start a new, anonymous life a thousand miles away and leave that beautiful, icy, sneering little cretin Lucian to whatever grim fate awaits him.
But when Lucian comes to him in the middle of the night, terrified and desperate but still as infuriatingly arrogant as ever, Benedict agrees to keep Lucian alive and on the throne. On one condition: Lucian must give in to Benedict’s long-hidden desires and allow Benedict to use him, in every possible way, to sate his cursed magic’s demands.
Lucian detests Benedict. He despises what he becomes when Benedict touches him. And it might be the death of him, if his father’s murderer doesn’t kill him first…

The Traitor’s Curse is the third book in the Twilight Mages series, but it can be read as a standalone. Contains family secrets, unbecoming behavior in a throne room, and a duke who protests far, far too much. HEA guaranteed!