Hermione's university research takes a turn when she finds an artifact that will protect anyone who possesses it from the effects of the unforgivable curses. She finds out that the only way to charge the artifact is through male sexual energy. It doesn't require orgasms, in fact, edging is the thing that charges it up the most. Knowing this, she designed a spell that keeps the male helping her from ejaculating to discourage orgasms while the artifact charges. You've had a crush on her forever, and she knows...using your desire for her, she enlists your help to study the artifact. But make no mistake, she's the one in charge here. In your first session, she outlines the project, then gives you explicit JOI instructions and mercilessly teases you. At the end she's so pleased that she gives you a blowjob. Will she let you cum this time or not? You won't know until the very end. To make sure you don't waste any of that precious sexual energy, she locks you up in a chastity cage until your next visit.