He arranges "detention" for himself, before combat starts.

Well, thanks to Cardin, his first chance to get to Glynda before class was out... But nothing stopped him from doing something after it. So he took out the Note, and wrote, "Glynda Goodwitch will hold Jaune Arc, and only him after class, telling him it is for his tardiness. However, instead of giving him detention, she will lock the door, strip naked and do any sexual act he requests, before sending him on his way, without thinking anything odd of it, nor speak of it."

There. While he hadn't decided what kind of **** to make his teacher, nothing excluded some side fun with her first.

She then announced after the lecture they had time for one fight, and asked for volunteers. The cocky shot Cardin raised his hand first, partly to get away from his suddenly amorous teammates, and upon seeing it, Yang raised hers. Jaune might have already gotten some ****, but Yang now wanted a piece of him.

Sure enough, they were picked and put into the arena. Yang ultimately won, though it was closer than Jaune would have thought. Cardin was clearly no slouch, and took an early advantage, and only lost due to Yang's Semblance increasing in power the more damage she took to her Aura, and thus, she got to pummel him at the end until Goodwitch called the match.

As she began to dismiss the class, she then said, "Oh, and Mister Arc. Stay behind, so we can talk about your tardiness.

Jaune smirked even as class filed out.