It was to the tune of Titanic
His tongue slid into her mouth and Lily felt her knees go weak. She was thankful when her back hit the wall, thinking nothing of it since they were in such a small space. After a long, pleasurable moment, in which their body heat mingled and the only sound in the broom cupboard was of their mouths moving together, Lily finally broke the kiss to breathe.
"Um," she said. What exactly did you say to a person who you had hated for five years, been friends with for one, and had just snogged the bloody hell out of? She shivered a bit in her wet clothes, feeling the temperature now that they had separated.