Lessons in Obedience (Nexus)

What would you do if a young woman arrived on your doorstep one day to atone for someone else's sins? And what if you detected, beneath her innocent exterior, a talent and a willingness to submit? You'd be a fool not to nurture it. Faced with that challenge, Alex Mortensen starts to introduce his pupil to the increasingly perverse pleasures that have always been featured in his own life. But what should he do when she learns so fast, catches up, and threatens to overtake?