"You just might." Fleur purred, not too seductively to give anyone who may have overheard her tone as one of an inappropriate tone for a sister to have, but just enough that Gabrielle would get her point. "We will see 'ow you behave."
Nodding once Gabrielle had gathered all her things, Fleur began to make her way out of the Library and to where she knew Gabrielle's room to be. Unlike Hogwarts, Beaubatons did not have house, merely dormitories divided by sexes with private rooms for the upperclassmen and two or three occupant dorms for underclassmen.
Once in the hall way, Fleur placed a hand on Gabrielle's lower back, a sisterly gesture to anyone looking on, but to them, she knew it might be taken as an act of showing the first sign that it may not be all fun and games as Fleur lead Gabrielle silently down the hall.
Reaching the dorm room finally, FLeur opened it and held it open for Gabrielle to enter first. Fleur wore a poker face all the while.