Pick Up Lines (Larry AU)

Harry is a senior in high school deciding that one day on his walk to school he would get some coffee from the local coffee shop. it just so happens to be the exact one Louis works in, everyday Harry goes in the shop with a new pick up line and comes out with a frown. Louis has a girlfriend and when Harry tries to use cheesy pick up lines on him he has to reject him because he's taken and straight. What will happen when Louis finally gives him a chance but "just as a friend" he says.