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{y/n} has been in love with Marlene McKinnon since first year, but she’s always believed her feelings could never be returned. Marlene is confident, playful, and famously flirtatious with boys, and no one has ever seen her show romantic interest in a girl. So when a rumor spreads that Marlene likes Sirius Black, {y/n} is heartbroken. She convinces herself that Marlene wants a boy—and that she’ll never be the person Marlene chooses. What {y/n} doesn’t know is that the rumor couldn’t be further from the truth. Marlene is bisexual, and she’s secretly in love with {y/n}. Sirius isn’t her crush at all; he’s her secret confidant, helping her figure out how to impress the girl she’s been falling for. James, Remus, Peter, Lily, Mary, and Marianna are all in on the secret and willingly help Marlene with her increasingly complicated attempts to win {y/n}’s heart. Unfortunately, their secret plans only make the misunderstanding worse. Marlene thinks {y/n} might never feel the same way. {y/n} thinks Marlene is falling for Sirius. Neither girl realizes that the feelings between them are completely mutual. What begins as a painful crush becomes a slow-burn story of secret feelings, jealousy, misunderstandings, friendship, and two girls slowly discovering that the love they thought was impossible has been right in front of them all along.