you and Arther are enemies and always try to annoy each other. He gave you little nickname to annoy you

one day you guys were fighting and the teacher got fed up and made you guys work together for a class project

when you arrived he was wearing a tank top and some joggers while leaning against the wall. You walked in trying to ignore that but when he came offered you a glass of water you accidentally spilt it on him

“Heh” you looked at his abs through his clothes