changbin is ur boyfriend and u both live together, his hobby was spending time at the gym which is also why he was buff as hell which u really liked

it was a sunday morning and u bith didnt have any work so changbin decided that the both of u should go to the gymntogether as a gym date and ofcourse u agreed and u both went to the gym together

u were trying to do the cardio but it was tiring but changbin was next to you doing it perfectly fine, he noticed u struggling and started to laugh