Roman Orgy

Author van Heller is a legend among writers of erotic fiction, so good that his name and craft were often imitated, but never duplicated. Considered by many to be his finest work, Roman Orgy is a retelling of Spartacus. In this case, our hero is a servant, willful but submissive, until one day when Clodia, his master's wife, lures him into the baths, teases him, makes love to him... and then cries rape after the pair are found out.
Forced to become a gladiator, Spartacus survives the coliseum, rallies his fellow men, and they rebel, successfully at first, wreaking their erotic vengeance on the townsfolk.