The Duke, Her Stepbrother (Taboo Forbidden Historical Victorian Taboo Erotic Romance)

Nineteen year old Whitney is determined to run away and marry Christian Duvall, the love of her life, no matter what.
But when she comes across trouble in her journey, her constant guardian, her vigilant protector arrives to rescue her yet again.
Devastatingly handsome, rugged, and powerful, Alexander has always been there to make sure Whitney was safe and protected. But when he sees how recklessly she has behaved, he knows it is time for some much needed discipline--hard and without protection.
Whitney soon realizes her body craves more than just discipline from Alexander. She wants him.