bodice ripper

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A romantic novel or film marked by seduction of a female protagonist, sustained drama, and sometimes violence.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A sexually explicit romantic novel, usually in a historical setting, especially one involving the seduction of the heroine.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a romantic novel containing scenes in which the heroine is sexually violated