Black Family Reunion Week

Regulus Black has a problem. He's had a huge crush on his older brother's girlfriend Marlene McKinnon for years. What will happen when they have share not only a room but a bed during the week of the Black family Reunion? And what will happen when Sirius finds out? Written for Marauder Map Madness, and Fibonacci Sequence on Hogwarts School of Witchcraft and Wizardry