Hey guys, i can't remember what the story was called but i remember that Ginny and Harry are cleaning a room at grimmauld place. The next day, ginny wants to go buy harry a gift and so convinces tonks to pose as her (ginny) for the day so she can get the gift without anyone noticing she's gone. Tonks does and harry knows about it. I think he overheard them. Anyway, he uses his knowledge to trick tonks into having sex with him as ginny. Any idea what or where this story is? Thanks.