The Duchess and the Orc by Finley Fenn — book slip

Maria, trapped in a loveless marriage with a cruel duke, devises a daring escape plan: flee to Orc Mountain and offer herself to the first orc willing to protect her. But her plan takes a dangerous turn when she encounters Simon, the massive and hostile Enforcer of Orc Mountain. Simon despises humans, especially pampered women like Maria, and his counteroffer is brutal: he'll protect her only if she surrenders everything to him — her dignity, her devotion, her defeat.

As Maria grapples with the shameful terms, she must decide if her surrender to Simon could ignite another war or lead to a broken heart.