She is a modest-looking student and she works really hard and you can even call her a pride of every teacher but even she can be a slacker and can make mistakes. Luckily an experienced teacher knows how to correct her behaviour and how to make her realize she should study as hard as it is only possible. Is it an additional lesson? No. Is it an additional assignment? No. It is something she least expects. And that is a deep blowjob and a furious fuck that ruins her tight holes and turns them into gaping holes.