Fleur fought a groan as the finger withdrew and went back to the light teasing of before. Part of her was thankful she had been so close to orgasming and she didn't know how she'd hide that from her class. But the other part was frustrated that she didn't get any release, that she was so close and then Lavender pulled back. She supposed that she would just have to settle for the teasing for now.
Keeping her head down to her papers, Fleur couldn't even look up at her students as they asked her questions, because she was so sure that her eyes were dark from arousal and knew that that would cause even more questions and difficult answers.
When Lavender hit her desk, she heard it and chuckled, the students attentions broken so they didn't notice as she waved them out. A couple tried to linger but Fleur, not as politely as she probably should have, told them that she was too busy at the moment for their questions and would help them later.
Once the classroom was empty, Fleur quickly charmed the door to lock and leaned back in her chair. "Mademoiselle Brown, I 'ope you plan on finishing what you 'ave started." She purred and let her legs spread as indication that she wanted Lavender to make her come.