Quite simple, actually: sick your worm brotha on him.
That always ends in embarassment. Always!
Maybe Stephen is also being punished by Jade.
If the MC only lets Jade jerk him off during class and the two talk later in EP4 after class, Jade tells the MC everything, how it started with Stephen cheating and how it continues. That Stephen said the name Cathy during sex. That when the MC rejects her after that, the two of them have a secret with each other. Jade also said that she has not told anyone before. The MC promises to keep it to himself. However, if the MC hits Caleb, the sex will come out in the classroom of Jade and the MC because Jamie will be hit by Dawe. Dani was standing at the school desk while Jade had the MC come. However, if the MC fucks Jade in EP4 and Stephen gets the video or photo in EP6, Jade can't do anything because she is just like Stephen.
What else do we know. The first time Stephen cheated on Jade with Cathy, he reeked of his favorite whiskey. As we know, Cathy leaves. Jade also knows that Stephen fucks coeds.
We now have the Maya preview where Maya has Stephen's whiskey in her hand. If Jade and the MC fucked, Maya will fuck Stephen behind closed doors. But if the MC was decent, Maya and Jade will work together. Maya will go to a certain point with Stephen. Maybe jerk him off. Where did I get that guess?
While Maya and the MC are fucking in EP7, Maya asks the MC if all the dicks are that big. The answer from the MC is that he doesn't know. Maya replies, "How modest". I think Jade says the same thing to the MC when he is dining with the dildo helmet with Bella, Cathy and Jade in the cafeteria.
After Maya jerks Stephen off, there will then probably be video proof. Stephen loses his job, Jade divorces Stephen and gets a lot of money. There is only one problem. The video. The MC will see it eventually. He will then have to decide whether to forgive Maya or not.