Fleeting
It had only been a brief glimpse, a fleeting glimpse of a smile on her face as they passed in the corridor. He grinned back, more of a lop-sided grin as they're eyes met for the briefest second.
Neither of them answered their friends when they asked 'What the hell that had been?' they'd just carried on with their smiles until they had gone their separate ways, knowing that they would have a good long conversation in the common room later and he would see that fleeting smile on her face again.
