Everyone knows Fred Weasley never takes anything seriously. So when he bets he can make Y/N fall in love with him before Christmas, it’s supposed to be a joke — another round of Gryffindor chaos, harmless flirting, and far too many witnesses. Y/N accepts immediately. That’s the problem. Because somewhere between late-night study sessions, stolen scarves, and Fred remembering things nobody else notices, the bet stops feeling funny. And the worst part? Fred notices that too.