The Training of a Slave (BDSM erotica)

You might think that an ageing Oxford Don into BDSM wouldn’t have too much opportunity to practice or get sex. But with a bevy of young and attractive under graduates attending his course all that changes. Thanks to a previous student of his two are ready primed and willing, allowing him then to start the academic year of brilliantly, by having two such beauties to train, plus a more mature one.