The Nanny

Evelyn had just graduated from Britain's top nanny school. It was exciting to get an offer from Mister Ransom in America, from Texas of all places! She was excited for new experiences, however, and when she arrived it was everything she'd imagined a big, western ranch would be! Everything went swimmingly - until she happened to open the door to an indoor swimming pool and saw Clarence there naked.
Clarence was one of the servants, a simply enormous black man who didn't speak. And who was, quite honestly, rather scary even before she'd seen his powerful body! But from then on she had... fantasies, dark, wild fantasies! And then one day Clarence caught her spying on him and decided to make even her most lurid fantasies pale by comparison. He was like a wild bull, a bull with a fetish for bondage! Sex with him was unbelievably wild and rough and scaldingly hot! But then they were discovered by Ransom's estranged wife, who apparently had taught Clarence everything he knew about pleasing women.
And about bondage. Evelyn found herself involved in a dark, thrilling, outrageous game of bondage and submission which soon involved Mister Ransom, as well! Instead of being the nanny she was soon training as a pony girl, and living a life of breathless wonder and outrageous passion.