"Its fine," Riku said, shaking his head. "You can both stay here." No one HAD to be over there. "It just might get uncomfortable fitting the both of you in here." There wasn't THAT much room.
"If you're really worried about it, I can stay over there," Riku offered. "They've got contential breakfast in the morning, so you don't have to use the cafeteria." Or pay money for an overprice cup of fruit.