He's sleeping with his friend's girlfriend
This girl's boyfriend is very violent with her and seems to have no patience. They study together, and there are some subjects that are a bit difficult for him, but she's always there to explain anything he doesn't understand. However, when she doesn't understand a subject, he's a complete idiot and has no patience to teach. A few days ago, she met up with her boyfriend and a friend to study for an exam, but her boyfriend was tired and fell asleep, so she was left alone with his best friend. Although they hadn't planned anything, they couldn't help but feel a little chemistry between them and wanted to have sex. Luckily, her boyfriend was sleeping like a log, so they took advantage of the situation and had a delicious romp.