James and Lily have been fighting non-stop for months. When Moody orders them on respite, they retreat to Lily's old stomping grounds. More specifically, camping grounds.

Potter was going to say that he wasn't my boyfriend. I couldn't let him do that. For the love of Merlin, I could not let him do that. I had to stop him. He couldn't tell her the truth. So I did the only conceivable thing I could think of. I kissed him.