Cass smirked, leaning in to the feel of her lips before he watched her leave the room. He waited, looking about the room and examining what was there, trying not to let his curiosity get the better of him. He was a friend - not an Auror when here.
To keep busy he removed his robes, shrinking them and sticking them in his pocket, waiting for her to return.
When she returned, he broke into a very approving smile. 'That will definitely suffice,' he said appreciatively, stepping over to her and wrapping an arm around her. 'Absolutely perfect,' he said, leaning in and kissing her cheek.
'Do you have your notebook with you?' he asked, just to make sure.