James/Lily. One-shot songfic to the song Thunder by Boys Like Girls.
James kisses this girl [Kirsten] intentionally in front of Lily.   (I corrected the errors, please tell me if I missed some!)
 
"Hearts can change beats so randomly, so fast. But in this way, it leaves a trail inside, a memory that will never really be removed or cleaned up. Not as much as the heart taking its time to clean it, to carefully pack it out and away." -James Potter