My Sister's First Love

"Morally, I ought to decide whether or not this is a story worth telling. The story of how I fell in love with my sister's first love, and how I ultimately ruined our relationship and set fire to everything that surrounded us. I'll let you decide though. I'll let you preach wrong or right but under one condition . . . . You have to wait until the very end to reach your verdict. Listen to my story, because this love story isn't any ordinary one."