Here are a couples of classics from the past.
The contents of these two novels are by the same author and contain the same story with the first part in “Captives of the Cane” and the second part in “The Naked Sisterhood”
The story-line is about a dominant woman and her hirelings ruling over an island camp where her female staff are subjected to whippings and sexual activities by herself and her male associates. At the end of part one the island is invaded by slave traders and the whole encampment is carried off to another island as slaves. In part two the dominant becomes the victim, naturally, although her former subjects continue to suffer. Everyone is rescued at the end, so there was probably no third part.
The story is quite well constructed with good characterisation and plenty of action. The second volume is one of the Continental Classics series, an imprint which never commissioned an original work but relied on piracy for its content. Accordingly it may have originally appeared as a Gargoyle Press release as with its prequel.
Both titles are available as e-books from Olympia Press.