Lavender, the cum converter

Hermione looked through the different spells to charge the book. Lavender would help them charge the book but she also not wanted the tentacle spell again, as this seemed to be rather pleasant. Then she found a nice spell, at least from her perspective, and the two witches followed Lavender into one of the nearby bathrooms.

As the witch had disappeared in one of the stalls, Hermione whispered the spell and instantly the book started to glow again. Both watched how some green slime started oozing from the pages and slipped under the door of the stall. A moment later they heard a gasp and a muffled scream. It took a moment, which they used to get out of view, before Lavender was pulled from the stall, her eyes rolled up, a slime creature fucking her mouth, ass and pussy.

A moment later the witch had disappeared inside the book. They looked at the page, watching Lavender's body swell as the slime creature kept pumping substance into her. Her tits got bigger, her belly looked as if she was pregnant. And then some glowing substance started shooting from the orgasming, trapped witch's nipples. The substance vanished into thin air, but it was clear that it was pure sexual magic to charge the book.

As they stood there and watched how the book charged, they suddenly could hear the door squeaking and someone coming in.